Cd ict-worksheet-la3-form-4

LESSON 67 Introduction to Computer Networks and Communications

1. The actual connecting medium that carries the message between your sending computer devices and receiving computer devices.

Answer:

2. Computers and peripheral devices that are connected together in order to exchangeinformation (e.g. email, chat and web site) and share resources (e.g. printers).

Answer:

3. This device converts digital signals into analog and back again into digital signals forinformation to move across the telephone line.

Answer:

4. A set of defined rules of communications for exchange of information to be possible among computing devices in a network.

Answer:

5. Network communications through the medium of the atmosphere using radio waves.

Answer:

1. Using hardware and _______________ interconnected computing devices can communicate with each other through defined rules of data communications.

2. Communications is about the transfer of information from a ______________across a distance, to a receiver.

3. A computer network can be a _____________connection and a wireless connection.

4. Computers communicate with ________________signals.

5. Other forms of communications technology, such as the telephone, use _________ signals.

ICT WORKSHEET, FORM 41

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1. For communications in a network to be possible, there must beI. a physical mediumII. a set of speakersIII. a set of rules called protocolsIV. a system application for managing network information flowA. I, II, IIIB. II, III, IVC. I, III, IVD. All the above

2. Information that is sent across a network can be text, voice, sound, video, graphics and images, or a combination of all these, which we call____________A. multimediaB. informationC. multitaskingD. communications

3. In a ______computers can exchange and share information and resources.A. officeB. networkC. restaurantD. organization

4. What happens if protocols between interconnected devices are not the same?A. Computers will be able to share resourcesB. Data transmission will not be understood between devicesC. Communications will not be able to convert from analog to digital signalsD. Network communications will use a special set of rules to connect devices

5. Modem stands for_________A. Motivator/ DemotivatorB. Modelling/ DemodellingC. Modulator/ DemodulatorD. Modes/ Demonstrations6. The function of the modem is to ____

A. convert digital signals into text and vice versaB. convert digital signals into sound and vice versaC. convert digital signals into analog and vice versaD. convert digital signals into images and vice versa

7. In a network, information and data in the form of codes is transmitted through a physical medium such as wire, cable, or even the atmosphere using________A. electricity and waterB. electricity, radio waves or lightC. radio waves and electromagnetic tapeD. radio waves, light waves or magnetic signals

8. The physical medium over which data signals travel can be____________A. cables, modems or wiresB. wires, cables or the atmosphereC. cables, wires or suitable softwareD. wires, the atmosphere or hardware

9. A computer network is a system of interconnected computers and peripheral devices. It may connect_________A. computers, satellites and chairsB. computers, printers, scanners and camerasC. computers, cameras, motors and hardware toolsD. computers, scanners, x-ray equipment and log books

10. The following device uses digital signals to send data ___________A. RadioB. TelevisionC. Microwave ovenD. Notebook computer

LESSON 68 Components of Communications


SCORE

1. Signals which carry information in a communications system travel throughA. a vacuumB. a liquid mediumC. a physical mediumD. a software medium

2. A communications channel is also known I. a communications linkII. a communications lineIII. a communications mediumIV. a communications programA. I, II, IVB. I, II, IIIC. I, III, IVD. II, III, IV

3. What is a communications channel?A. The logical path by which a message travels from a receiving device to a sending deviceB. The logical path by which a message travels from a sending device to a receiving deviceC. The physical path by which a message travels from a receiving device to a sending deviceD. The physical path by which a message travels from a sending device to a receiving device

4. Which of the following are examples of communications channels?I. Wired connectionII. Text communicationIII. Wireless connectionIV. Human communicationA. I and IIB. I and IIIC. II and IIID. III and IV

5. Some common types of network communications channels are the_____I. twisted-pair wireII. coaxial cableIII. fibre-optic cableIV. wireless systemsA. I and II

B. I, II, IIIC. I, II, III and IVD. None of the above

6. The network interface card provides connection between the computer and ____A. the network’s serverB. the network’s softwareC. the network’s security systemD. the network’s communications media

7. The network interface card functions as _______to move data from the PC’s system to the network medium and vice versa.A. a data reader deviceB. a data storage deviceC. a data channel deviceD. a data conversion device

8. Other hardware components that are required for communications to work on a network are networking devices, such asA. the hub, switch, router and modemB. the switch, hub, scanner and cablesC. the modem, mouse, keyboard and printerD. the router, hub, server and network software

9. Network software would be able to provide basic functions, such asI. connecting to other computers on the networkII. configuring plug and play devicesIII. sharing resources and filesIV. providing for network security for users who are onlineA. I, II, IIIB. I, III, IVC. II, III, IVD. All the above

10. Network software must be able to handle networking ________and connections within the network and with other networks.A. practicesB. principles

LESSON 69 Importance of Networks and Communications


C. proposalsD. protocols

SCORE

1. Mobile communications today is based on networking technology.A. TRUEB. FALSE

2. Networking technology allows banking to be done anywhere and at any time.A. TRUEB. FALSE

3. Data in the network can be shared.A. TRUEB. FALSE

4. People on the network cannot share information.A. TRUEB. FALSE

5. A

network links two or more computers together to enable data and resource exchange.A. TRUEB. FALSE

6. Network communications is important in the area of e-business, e-banking, e-learning and long distance communications.A. TRUEB. FALSE

7. We cannot do a long distance communication using a network.A. TRUEB. FALSE

8. Homemakers, students, teachers, business people and almost anyone with access to a networked computer can get online and continue their path of lifelong education anywhere, anytime.A. TRUE

LESSON 70


NO STATEMENT TRUE FALSE1 With e-banking, most of the transactions can be done at home

or from the office only during banking hours.

2 In e-learning, students at any location around the world canparticipate in an online classroom, download tutorial questionsand submit their assignments.

3 Networks do not provide a very rapid method for sharing andtransferring files.

4 Besides monetary savings, sharing a program on a network allows easier upgrading of the program.

5 People at various places in a network can communicate and work together.

6 Internet connection is not needed before an online education can take place.

4

B. FALSE

SCORE

Types of Networks

1. LAN is an acronym of Limited Area NetworkA. TRUEB FALSE

2. WAN is a network connecting computers within very large areas, such as states,countries and the world.A. TRUEB. FALSE

3. A clerk in Malacca exchanges files with a clerk in Perak using LAN.A. TRUEB. FALSE

4. LAN is a network that is confined to a relatively small area.A. TRUEB. FALSE

5. LAN is generally limited to a geographical area such as home, school, or building.A. TRUEB. FALSE

6. LAN is an acronym for Leased Area Network.A. TRUEB. FALSE

7. WAN is a network that covers a limited geographical area.A. TRUEB. FALSE

8. It is considered a Local Area Network if our school network can access the Internet.A. TRUEB. FALSE

LESSON 71


SCORE

Local Area Network (LAN)

1. A lecturer in Penang exchanges files with a student in Kuala Lumpur using LAN.A. TRUEB. FALSE

2. We can share resources with a Local Area Network.A. TRUEB. FALSE

3. Printers cannot be shared using a LAN.A. TRUEB. FALSE

4. LAN is a network that covers a limited geographical area.A. TRUEB. FALSE

5. Most LAN typically used coaxial, twisted pair or fiber optic cables as a transmission media.A. TRUEB. FALSE

6. The Internet is an example of a LAN.A. TRUEB. FALSE

7. LANs are capable of transmitting data at a very high speed compared to normal transmission using telephone lines.A. TRUEB. FALSE

8. If our school network can access the internet, it is considered a Local area Network.A. TRUEB. FALSE

9. Local area Network is group of computers and network device connected together, usually within the same building.A. TRUEB. FALSE

LESSON 72 Metropolitan Area Network (MAN)1. MAN is an acronym for Metropolitan Area Network.


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A. TRUEB. FALSE

2. MAN allows communication activities and all the network services sharing in thecoverage region.A. TRUEB. FALSE

3. Coaxial cables are usually used to connect computers in MANA. TRUEB. FALSE

4. MAN can be a combination of LANs.A. TRUEC. FALSE

5. MAN can only be connected using digital media.A. TRUEB. FALSE

6. MAN covers a bigger area than LAN.A. TRUEB. FALSE

7. Home network is an example of a Metropolitan Area Network.A. TRUEB. FALSE

8. Metropolitan Area Network connects computers in a metropolitan area such ascampuses or links between office buildings in a city.A. TRUEB. FALSE

LESSON 73 Wide Area Network (WAN)

1. We can communicate with our friends outside the country using the Internet.A. TRUEB. FALSE

2. The Internet is the largest WAN in the world.A. TRUEB. FALSE


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3. WAN covers smaller geographical area than LAN.A. TRUEB. FALSE

4. To improve the network performance in the school lab, the school should install a WAN.A. TRUEB. FALSE

5. WAN is part of the Metropolitan Area Network.A. TRUEB. FALSE

6. Modems are the devices that WANs use to connect all the smaller networks into a WAN.

A. TRUEB. FALSE

7. WAN is used to connect computers in limited areas such as a city.A. TRUEB. FALSE

8. More hardware and maintenance costs will incur in setting up a WAN.A. TRUEB. FALSE

LESSON 74 Differences between Types of Network

Smallest coverage areaNormally used cablesGenerally used by small organisations such as schools and computer labsCoverage is bigger than LAN but limited to certain geographical areaUsually used to connect networks in the citiesSimilar to WAN but offers a faster transmission speedWorldwide coverageIt allows communication with friends outside the countryUnlimited number of computers

1. Cost, coverage, speed and number of computers involved increase from LAN, MAN toWAN.A. TRUEB. FALSE

2. MAN can have a large number of computers connected compared with LAN but less thanWAN.

A. TRUEB. FALSE

3. MAN may have more than two transmission medias.A. TRUEB. FALSE


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4. MAN is the best solution for those who want a larger coverage area than LAN but fastertransmission speed than WAN.A. TRUEB. FALSE5. The cost of establishing a MAN is cheaper than LAN.A. TRUEB. FALSE

6. LAN normally uses a satellite as their transmission media.A. TRUEB. FALSE

7. A WAN is a network that covers a large geographic area using a communication channelthat combines many types of transmission media such as telephone lines, cables and radio waves.A. TRUEB. FALSE

8. Computers in the school office and computers in the faculty room can be connected using LAN.A. TRUEB. FALSE

LESSON 75 Network Architecture

NO STATEMENT TRUE FALSE1 Network architecture is the overall design of a computer network that

describes how a computer network is configured and what strategies are being used.

2 Network architecture mainly focuses on the cost of the networks.

3 Network architecture is also known as network model or network design.

4 There are three main network architectures.

5 A client/server network is a network where the shared files andapplications are stored in the server but network users (clients) can still store files on their individual PCs.

6 A server is a computer that shares information and resources with other computers on a network.

7 A client is a computer which requests services or files from a server computer.

8 Peer-to-peer network is a network with all the nodes acting as both servers and clients.

9 All computers in the peer-to-peer network have equal responsibilities and capabilities to use the resources available on the network.

10 A server is needed in a peer-to-peer network.

11 Network architecture is mainly focused on the functions of the networks.

12 In client/server network, two powerful computers must be assigned as the servers.

13 Peer-to-peer has no tendency to slow down even with heavy use.

14 In peer-to-peer network all computers in the network are considered equal; all of them have the same responsibilities and capabilities to use the resources available on the network.

15 In peer-to-peer network no server is needed.


SCORE

16 There are three main network architectures: server network,client network and peer-to-peer network.

17 The client computers will request services or files from the server in a client/server network.

18 Network mode is another term for network architecture.

LESSON 76 Client/Server

1. A _____________________is also sometimes called a host computer.

2. A ________________is one or more computers that act as a server and the othercomputers on the network request services from the server.

3. There are other computers and mobile devices on the network that rely on the server for its resources, which we call_____________________

4. A_______________is used to store and manage files.

5. A _________________is used to manage network traffic.

6. A _________________is used to store and provide access to a database.

7. A ______________________is to manage printers and print jobs.

8. A company owns a server and more than 50client computers. The most suitable network architecture for this company is the ________________network.


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9. A_______________is used to control access to the hardware, software and otherresources on the network.

10. In banks, account information is stored in the bank’s ______________ A customer can access his account via Internet banking.

LESSON 77 Peer-To-Peer

1. In a client/server network, a computer may have a different__________depending on its functions.

2. In a peer-to-peer network, all computers have___________abilities.

3. More __________costs will have to be spent on a client/server network than a peer-to-peer network.

4. Client/server network is used in both small and _____________networks.

5. Peer-to-peer is normally used in ___________networks with less than ten computers.

6. Client/server network is easier to manage than peer-to-peer network in terms of _____________ and data accuracy.

7. Files need to be shared in the _____________of a client/server network while shared files will need to be stored in individual PCs of a peer-to-peer network.

8. One __________computer is needed as the server in a client/server network while peer-to-peer network needs no server.

1. Kamal has two computers. He wants to build a simple network architecture in his house. The best network architecture is a client/server network.

True False

2. A computer in peer-to-peer network can share a printer with other computers.

True False

3. Suzan can share her hard drive with Leela who is staying in the USA by using Limewire software.

True False

4. Internet networking allows a group of computer users with the same networking program to connect with each other and directly access files from each other’s hard drives.

True False

5. Rajoo found an interesting Web joke; he wants to share this joke with his friends in

Korea. His friend used MS PowerPoint to download the joke from his hard drive.

True False

6. Hardy is given a job to construct a form of networking in his aunt’s company. His aunt has three computers; the most suitable network architecture is peer-to-peer network.

True False

7. Shamala is downloading an MP3 song from the Internet. She wants to share the song with her friend, Linda in Japan. Linda must use Bearshare to download the MP3 song from Shamala’s hard drive.

True False

8. Kumar wants to share his assignment with his course mate. He must give permission to his course mate to access his hard drive before his course mate can retrieve his assignment.

True False


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9. In a peer-to-peer network, a computer cannot share any devices attached to it such as a printer or a scanner to any other computer.

True False

10. Each computer in the peer-to-peer network has equal responsibilities and capabilities like sharing hardware (such as a printer), data or information with other computers.

True False

LESSON 78 Network Topology


SCORE

LESSON 79 Network Topology

1. A bus refers to the main physical pathway or central cable where all other devices are connected to it.A. TRUEB. FALSE

2. If the backbone fails, the network can still function.A. TRUEB. FALSE

3. A bus topology consists of a double central cable to which all computers and other devices connect.A. TRUEB. FALSE

4. One of the advantages of the bus topology is new devices can be added to the backbone or to the existing nodes.A. TRUEB. FALSE

5. Bus networks are very common in Wide Area Networks (WAN).A. TRUEB. FALSE

6. In a bus topology, troubleshooting is difficult when one of the nodes fails.A. TRUEB. FALSE

7. A bus network must have a common backbone (the central cable) to connect all devices.A. TRUEB. FALSE

8. In communications technology, a bus network is like as a common “highway” in which data is transmitted.A. TRUEB. FALSE

9. Bus topology and bus network are two different things.A. TRUEB. FALSE

10. In a bus topology, failure of a node will affect the entire LAN.A. TRUEB. FALSE


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LESSON 80 Ring Topology

1. A ring topology consists of a single central cable to which all computers and other devices connect.A. TRUEB. FALSE

2. A server may exist in a ring network, but it will not connect to all the nodes in the network.A. TRUEB. FALSE

3. A ring network can be found in Wide Area Networks.A. TRUEB. FALSE

4. A ring network does not have a common backbone.A. TRUEB. FALSE

5. Ring topology is also known as ring network.A. TRUE

B. FALSE

6. If one of the nodes in a ring network with backbone fails, the network will fail to function.A. TRUEB. FALSE

7. If one of the nodes in a ring network with backbone fails, the network can still function as long as the backbone is working.A. TRUEB. FALSE

8. In a ring network, a failing node does not affect the entire LAN.A. TRUEB. FALSE

9. If a ring network has a ring-form backbone, then all nodes will connect to the backbone.A. TRUEB. FALSE


SCORE

10. In a ring network, troubleshooting is difficult when one of the nodes fail.

A. TRUEB. FALSE

LESSON 81 Star Topology

1. A star network is found in a ________________________setting.

2. In the early days of computer _______________,all computers were connected to a centralised mainframe computer.

3. A star topology is also known as___________________

4. The idea of a ________________computer is where the basic concept of a star topology comes from.

5. Network speed ____________________when the number of nodes increases.

6. If one of the nodes ________________ the star network can still function as long as the host is working.

7. __________________is difficult when one of the nodes fails.

8. A star topology consists of a _______________which acts as the centre and all nodes connect to the host.

9. In a star network, every ________________will not connect to the neighbouring nodes.


SCORE

10. In star topology, a host must be installed to _______________the network.

LESSON 82 Differences of Network Topology

1. Each topology influences the capabilities of the hardware in order to manage the flow of information.

True False

2. Ring topology has no limit to install as many numbers of nodes when extending a network.True False

3. Star topology has an average capacity in adding and removing nodes.True False

4. Star topology has it own host.True False

5. Ring topology does not have connection between each node.True False

6. Bus topology has a central host and all nodes connect to it.True False

7. In a ring topology, all computers and other devices are connected in a circle.True False

8. Star topology limits installation of many numbers of nodes when extending a network.True False

9. Bus network has no difficulties in troubleshooting.True False

10. Bus topology can install many numbers of nodes when extending a network.True False


SCORE

LESSON 83 Introduction to Network Standards

1. The well-known standards adopted by the Institute of Electrical and Electronic Engineers(IEEE) are the ___________________________

2. The______________ uses the 2.4GHz frequency band to transmit data up to 2Mbps.

3. _______________________is the standard specifications for a Broadband LAN.

4. Specifications for a fibre-optic LAN and MAN are given under the _________________

5. The IEEE develops and provides networking technology specifications for worldwideusage which is called _____________________

6. The______________________ is the standard for an Ethernet LAN.

1. This 802.11 standard provides specifications for the design, installation and testing needed for broadband transmissions.

True False

2. In 802.3, Ethernet refers to the physical cabling, while the way data is transmitted through the cable is called Carrier Sense Multiple Access/ Collision Detection (CSMA/ CD).

True False

3. This 802.8 standard provides specifications for the design, installation and testing needed for broadband transmissions.

True False

4. Network communications use a variety of standards to ensure that data travels correctly to its destination.

True False

5. The 802.11 standard uses the 2.4GHz frequency band to transmit data up to 2Mbps.True False

6. 802.7 standard gives the recommendations for the configuration and testing of fibre optic Local Area Networks and Metropolitan Area Networks.

True False

7. The well-known standards adopted by the Institute of Electrical and Electronic Engineers (IEEE) are the 800 standards.

True False

8. 802.11 standard defines communication between a wireless computer or client and an access point, or between two wireless computers or clients.

True False

9. In 802.3 standard, broadband transmissions allow simultaneous multiple transmissions or signals using different communications channels at the same time.

True False

10. 802.8 standard provides specifications for the design, installation and testing needed for broadband transmissions. True False


SCORE

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LESSON 84 Protocols

1. _______________________provide the rules for how computers communicate.

2. _______________________is responsible for providing logical addressing called IPaddress to route information between networks.

3. _______________________is used to access, send and receive Hypertext MarkupLanguage (HTML) files on the Internet.

4. _______________________is responsible for allowing files to be copied betweendevices.

5. ________________________ensures the delivery of information packets acrossnetworks.

1. Network standards are specifications set by organisations such as the IEEE to define how networking devices communicate and access network media.

True False

2. File Transfer Protocol (FTP) is used for transferring e-mail between computers.True

False

3. Before protocols were developed, intercommunication between devices was possible.True

False

4. Protocols are important as they define how devices, applications or computers communicate on a network.

True False

5. A protocol stack or a protocol suite works together as a group at different levels or layers. It prepares and processes data for an exchange of information over a network.

True False

6. Internet Packet Exchange (IPX) is one of the three main protocol suites that are used in internet works.

True False

7. Hypertext Transfer Protocol (HTTP) is responsible for allowing files to be copied between devices.True

False

8. On a network between two computers, only one protocol will be at work defining the processes of communication between the two computers during a single exchange of data or information.

True False

9. Protocols define how devices intercommunicate in a network environment.True

False


10. Simple Mail Transfer Protocol (SMTP) is used for transferring e-mail between computers.True

False

LESSON 85 Introduction to TCP/IP

1. IP is the protocol that transfers data from node to _____________________.

2. TCP is responsible for breaking the data into_____________ before they are sent, and assemble them when they reach a destination.

3. IP is responsible for sending the packets from sender to __________________.

4. Some refer TCP/IP as the ________________________.

5. TCP stands for _______________________

6. IP takes care of delivering data packets between two ___________________

7. TCP/IP is the internet communication_________________________

8. IP stands for ____________________

9. TCP/IP is a _________________that sets the rules computers must follow in communicating with each other on a network.


SCORE

10. TCP establishes connection between two computers, protects against data loss and_________________ corruption.

LESSON 86 The Way TCP and IP Work

1. Each computer must have an __________________assigned by the network administrator to access the Internet.

2. When you access a _____________for example the Yahoo main page, the TCP/IP will make the communications work between your computer and the Yahoo’s server.

3. You have typed the ___________“www.yahoo.com” on the browser. Your TCP will send a request for the web page to Yahoo’s server according to the address you typed in.

4. TCP will make the ______________between two computers (yours and Yahoo server) and it will prepare the full-duplex communication.

5. The IP will begin sending the ________________from 192.168.0.1 to www.yahoo.com (or 209.131.36.158).

6. Internet is a huge collection of ______________. There are many routes from your computer to the server.

7. IP will send the ________________through these routes as fast as possible.

8. IP will constantly use several different ______________to deliver packets to their destination.

9. TCP will continue to maintain the link between two _______________________


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10. TCP will close the ________________links once the web page has reached your computer.

LESSON 87 Private Computer Network Setting

1. When you want to install a private network, you will need to install the _________________IP address, subnet mask and default gateway.

2. Right click on the My Network Places on the desktop and click the_________________command.

3. In the Network Connections window, right click on the________________interface and click the Properties command.

4. In the network interface’s properties dialog box, click the_____________entry and then click the properties button.

5. In the Internet protocol Properties dialog box, select the use the following_______________option.

6. Type in the ______________in the IP address text box.

7. Type in the subnet ______________in the subnet mask text box.

8. Enter a ______________with you server’s IP Address.

9. Make sure the obtain ____________server addresses automatically option is chosen.

10. Click OK in the ____________Protocol Properties dialog box.

1. When you want to install a private network, you will need to install only the network card.True

False

2. Right click on the My Network Places on the desktop and click the Properties command.True

False

3. In the My Network Places window, right click on the network interface and click the Properties command.

True False

4. In the network interface’s properties dialog box, click the Internet Protocol entry and then click the properties button.

True False

5. In the Internet Protocol Properties dialog box, select the Use the following IP address option.True

False

6. Type in the subnet mask in the IP address text box.True

False

7. Type in the IP address in the subnet mask text box.True

False


SCORE

8. Enter a default gateway with you server’s IP Address.True

False

9. Make sure the obtain DNS server addresses automatically option is chosen.True False

10. Click OK in the Internet Protocol Properties and the external interface’s properties dialog box.True False

LESSON 88 Types of Network Communication Technology

1. An ________ __ can be viewed as part of a company's Intranet that is extended to users outside the company.

Answer:

2. It has a Web server, supports multimedia Web pages coded in HTML and is accessible via a Web browser such as Microsoft Internet Explorer or Netscape Navigator.

Answer:

3. It consists of millions of smaller business, academic, domestic and government networks, which together carry various information and services, such as electronic mail, online chat. It also carries interlinked Web pages and other documents of the World Wide Web.

Answer:

4. Package shipping companies, for example, allows customers to access their network to print air bills, schedule pickups, and even track shipped packages as the packages travel to their destinations.

Answer:

5. Through the society has access to global information and instant communications

Answer:

6. Sometimes the term refers only to the most visible service, the internal website.

Answer:

7. It has a Web server, supports multimedia Web pages coded in HTML and is accessible via a Web browser such as Microsoft Internet Explorer or Netscape Navigator.

Answer:

1. In intranet, ______________and other Internet protocols are commonly used as well, especially FTP and email.

2. The same concepts and technologies of the Internet such as clients and servers running on the Internet protocol suite are used to build an __________________

3. Sometimes a company uses an ,________________which allows customers or suppliers to access part of its network.

4. Contrary to some common usage, the Internet and the ________________are not synonymous.


SCORE

5. Intranet has a Web server, supports multimedia Web pages coded in HTML and is accessible via a _________________ such as Microsoft Internet Explorer or Netscape Navigator.

6. The Internet is a worldwide, publicly accessible system of interconnected computer networks that transmit data by packet switching using the standard ___________________

LESSON 89 Internet

1. Internet is a global network connecting millions of computers.A. TRUEB. FALSE

2. There is only one category of Internet connection and this is called broadband.A. TRUEB. FALSE

3. Some of the many usages of the Internet are entertainment, commerce and education.A. TRUEB. FALSE

4. Internet transmits data by using Internet Protocol (IP).A. TRUEB. FALSE

5. Internet connection is divided into two categories; dial-up and Streamyx.A. TRUEB. FALSE

6. An ISP can either be a telecommunication company or any other organization specialising in providing access to Internet services.A. TRUEB. FALSE

7. The Internet is the world’s largest computer network connecting millions of computersworldwide.A. TRUEB. FALSE

8. Internet service can only be provided by a telephone company.


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A. TRUEB. FALSE

9. Currently, Malaysia has four telephony companies providing Internet services.A. TRUEB. FALSE

LESSON 90 Intranet

1. Intranet is an internal network within the organisation.

True False

2. Intranet can be accessed by other computers outside an organisation with the use of login names and passwords.

True False

3. Intranet has its own firewall to protect from intruders outside an organisation from accessing the company information or data.

True False

4. Intranet can be accessed without the use of user ID or login name and password..

True False

5. Intranet can connect two branches of an organisation even though they are located at two different places.

True False

6. The Internet connects networks worldwide, while intranet works within a particular organisation.

True False

7. Intranets include services like email, company information, employee handbook, company events and calendars as well as job postings.

True False

8. Intranets do not support groupware applications.

True False

9. If Ali is in Jakarta on a business trip, he can still access company information by going through his company’s website, entering his user ID or login name and password.

True False


SCORE

10. With intranet, meetings and discussions can be carried out without having to physically meet at a meeting room.

True False

LESSON 91 Extranet

1. Only __________ or authorised users can navigate or access an extranet.

2. Through extranet, users can share product __________ exclusively with wholesalers or those "in the trade”.

3. News of __________ interest can be shared privately with partner companies using extranet.

4. __________ with other companies on joint development efforts can be done via extranet.

5. __________ can access the Internet while extranet is only limited to defined sets of customers, suppliers or partners.

6. Extranet is within a firewall while the __________ might be with or without a firewall.


SCORE

7. __________ in the Internet often create problems such as hackers and viruses to users, while extranet is more secured as only authorised users can access their system.

LESSON 92 Communication Devices: Hardware Requirements

1. An adapter card or PC card that enables the computer to access the network.

Answer:

2. A central communication device that allows computers and devices to transfer data wirelessly between wireless devices or to transfer data wirelessly to a wired network.

Answer:

3. A communication device that connects multiple computers or other routers together and transmits data to the correct destinations.

Answer:

4. A communication device that only works in stand alone computers. It is built into the computer to connect to the Internet.

Answer:

5. A common connection point for devices in a network commonly used to connect segments of a LAN.

Answer:

6. A communication device that is separate from the computer and is also mobile. It is used to connect to the Internet.

Answer:

7. A network card that provides wireless data transmission.

Answer:

1. An adapter card or PC card that enables the computer to access the network.A. ModemB. Wireless Access PointC. Network Interface CardD. Wireless Network Interface Card

2. A central communications device that allow computers and devices to transfer datawirelessly between wireless devices or to transfer data wirelessly to a wired network.A. RouterB. Hub/SwitchC. Wireless Access PointD. Wireless Network Interface Card

3. A communications device that only works in stand-alone computers. It is built into thecomputer and enables the PC to connect to the Internet.A. Router

B. Hub/SwitchC. Internal ModemD. External Modem

4. A communications device that connects multiple computers or other routers togetherand transmits data to the correct destinations.A. RouterB. Hub/SwitchC. Internal ModemD. External Modem

5. A network card that provides wireless data transmission.A. Hub/SwitchB. Wireless Access PointC. Network Interface CardD. Wireless Network Interface Card


SCORE

SCORE

LESSON 93 Functions of Communication Devices

1. A Wireless Network Interface Card is an essential component for wireless desktopcomputers. This card uses an antenna to communicate through _______________________

2. A switch understands when two devices want to talk to each other, and gives them a ________________ connection.

3. A Network Interface Card is a piece of computer hardware designed to allow computers to ___________ over a computer network.

4. A hub connects all the devices on its ______________together.

5. The wireless access point usually connects to a _____________network, and can relay data between wireless devices and wired devices.

6. Several Wireless APs can link together to form a larger network that allows ________________

7. Wireless Network Interface Cards are designed around the IEEE 802.11 standard which sets out ___________________specifications on how all Wireless Networks operate.

8. A router acts as a ____________________between two or more networks to transfer data packets among them.

9. A ______________is a communication device that enables a computer to transmit data over telephone or cable lines.

LESSON 94 Transmission Medium


SCORE

1. In network communications, it is common to represent the interconnection between devices as _______A. Network clouds.B. Routers interconnection.C. Switches interconnection.D. Routers and switches interconnections.

2. ______provides Internet access to users at public places.A. WiFiB. HotspotsC. Hand phoneD. Twisted-pair

3. Which of the following equipment uses transmission medium?A. TVB. PrinterC. RadioD. Radio, remote control and hand phone

4. What kind of medium is wireless transmission using?A. Guided mediumB. Unguided mediumC. Unlimited mediumD. Guided and unguided medium

5. A ______is a material substance which can propagate waves or energy.A. twisted-pair cableB. transmission mediumC. short range transmissionD. transmission environment

6. Two categories of transmission medium are A. physical and guided transmission mediumsB. physical and wireless transmission mediumsC. wireless and unguided transmission mediumsD. wireless and twisted-pair transmission mediums

7. Which of the following is an example of physical transmission medium?A. AirB. VacuumC. AntennaD. Twisted-pair

8. Computers and other telecommunications devices use in a form of wave or energy to represent data which are transmitted throughtransmission medium.A. powerB. signalsC. mediumD. electricity

9. Which of the following is an example of a wireless transmission medium?A. AirB. CoaxialC. Fibre opticD. Twisted-pair

10. Which of the following uses physical transmission medium?A. Using WiFi technology at a café.B. Connecting two hand phones via Bluetooth.C. Connecting to the Internet at a Hotspot centre.D. Connecting PC to printer using parallel port.

11. Which of the following is an example of physical transmission medium?A. AirB. VacuumC. AntennaD. Twisted-pair

12. In physical transmission medium, waves are along a solid transmission medium whereas in wireless transmission medium, waves are andthe transmission and receptions are by means of antennas.A. guided, unguidedB. unguided, guidedC. transmitted, guidedD. propagated, directed

13. Which of the following is an example of physical transmission medium?A. AirB. HotspotC. AntennaD. Fibre optic

LESSON 95 Physical Transmission Media


SCORE

1. A twisted-pair cable without a metallic shield.A. UTPB. STP

2. Cable made up of conducting outer metal tube and insulated from a central conductingcore.A. CoaxialB. Fibre optic

3. Cable that uses light as its data transmission medium.A. Twisted-pairB. Fibre optic

4. Connector for twisted-pair cable.A. RJ-45B. MT-RJ

5. Connector for coaxial cable.A. BNC-TB. MT-RJ

6. Connector for fibre optic.A. BNC-TB. MT-RJ

7. This cable gives the least signal attenuation.A. Fibre opticB. Coaxial

8. The cheapest transmission media.A. UTPB. STP

9. The most secured transmission media.A. CoaxialB. Fibre optic

10. The most expensive transmission media.A. Twisted-pairB. Fibre optic

11. Suitable for longer distance of data transmission.A. CoaxialB. Fibre optic

12. The most susceptible to electrical noise and interference.A. UTPB. STP

13. Which is true regarding physical transmission medium?A. Air is a good example of a physical transmission medium.B. Any solid substances that can propagate wave or energy.C. Physical transmission medium is also known as unguided transmission medium.D. Rubber is a good example of a conductor used in a physical transmission medium.

14. For twisted-pair cable, the purpose of twisting two pairs of wires together is ________A. to make it look tidyB. there is no good reasonC. to reduce electromagnetic interferenceD. to make it more stronger therefore difficult to break

15. _______cable is a networking medium that uses light for data transmission.A. CoaxialB. Fibre opticC. Shielded Twisted-PairD. Unshielded Twisted-Pair

16. Two types of twisted-pair cables are ___________.A. shielded and coaxialB. coaxial and fibre opticC. unshielded and shieldedD. unshielded and protected

17. Which is not the correct type of cable in networking?A. Data CableB. Fibre Optic CableC. Shielded Twisted-Pair (STP)D. Unshielded Twisted-Pair (UTP)

18. The following are advantages of fibre optic cables as compared to twisted-pair and coaxial cables except .A. cheaperB. light weightC. more secureD. higher bandwidth

LESSON 96 Wireless Transmission Media

1. _______networks are telephone or computer networks that use radio frequencies and infrared waves as their carrier.


SCORE

A. WiredB. WirelessC. ProtectedD. Unprotected

2. Wireless is a method of communication that uses ________waves rather than wire conductors to transmit data between devices.A. digitalB. analogC. microwaveD. electromagnetic

3. In a wireless media, signal transmission is .A. guidedB. unguidedC. protectedD. unprotected

4. Wireless transmission can be categorised into three broad groups; .__________A. radio waves, microwaves and infraredB. radio waves, microwaves and BluetoothC. radio waves, electromagnetic waves and BluetoothD. electromagnetic waves, microwares and Infrared

5. Electromagnetic waves ranging in frequencies between 3 Kilo Hertz and 1 Giga Hertz are normally called ___________A. microwaveB. radio wavesC. infrared wavesD. magnetic waves

6. Waves ranging in frequencies between 1 and 300 Giga Hertz are normally called_______.A. microwavesB. radio wavesC. infrared wavesD. magnetic waves

7. The parabolic dish antenna receives ingoing transmissions by reflecting the signal to acommon point called the ________A. dotB. peakC. focusD. centre

8. What is the range for the Electronic waves?A. 1 GHz to 2 GHzB. 1 GHz to 200 GHz

C. 1 MHz to 400 MHzD. 1 GHz to 300 GHz

9. What is the frequency of Infrared signals?A. 200 MHz to 500 MHzB. 100 GHz to 200 GHzC. 100 MHz to 400 MHzD. 300 GHz to 400 THz

10. Radio waves transmitted by one antenna are susceptible to interference by another antenna that is sending signals of the ____frequency or band.A. sameB. lowerC. higherD. different

11. Infrared signals have ______frequencies and cannot penetrate walls.A. lowB. highC. mediumD. moderate

12.______ is a method of communication that uses electromagnetic waves to transmit data between devices without using a physical conductor.A. SmokeB. WirelessC. Public TelephoneD. Guided transmission

13. A parabolic dish antenna is a(n) ____antenna.A. hornB. bidirectionalC. unidirectionalD. omnidirectional

14. ____________ are normally omnidirectional.A. MicrowaveB. Radio wavesC. Tidal wavesD. Electrical waves

15. Using ________devices outside a building is not recommended because the sun’s rays can interfere with the communication.A. satellite

LESSON 97Server Software

1. One of the popular network operating systems is:A. Windows XP

B. Windows NT


B. infraredC. microwaveD. radio wave SCORE

2. Since ______Red Hat has discontinued the Red Hat Linux line in favour of its new Red Hat Enterprise Linux.A. 2005B. 2003

3. ____________operating systems allow the network to centralise functions and applications in one or more dedicated file servers.A. Client / server networkB. Peer-to-peer network

4. It is part of the Microsoft Windows NT line of operating systems.A. Windows 2003B. Windows 2000

5. _________and Windows Server 2003 are the latest versions of Windows NT.A. Windows XP

B. Windows 2000

6. ______are designed primarily for small to medium local area networks.A. Client / server networksB. Peer-to-peer networks

7. ________is the final release of the Red Hat Linux software.A. Red Hat Linux 9B. Red Hat Linux 7

8. ________was released on February 17, 2000.A. Windows NTB. Windows 2000

9. _______do not have a file server or a centralised management source.A. Client / server networksB. Peer-to-peer networks

1. __________________is the name of Microsoft's line of server operating systems and is the successor to Windows 2000 Server.

2. ________________was one of the most popular Linux distributions, assembled by Red Hat.

3._______________ is graphical and business-oriented operating system that was designed to work with either uniprocessor or symmetric multi-processor (SMP) 32-bit Intel x86 computers.

4. _______________is a family of operating systems produced by Microsoft, the first version of which was released in July 1993.

LESSON 98Client Software

1. A web browser is a software application that enables a user to display and interact with _____________ documents hosted by web servers.


SCORE

2. An email client or mail user agent is a computer program that is used to read and send ___________

3. There are three types of client software, which are web browser, email client and_______________

4. Although web browsers are typically used to access the World Wide Web, they can also be used to access information provided by web servers in ______________ networks.

5. A web browser is a ______________that enables a user to display and interact with HTML documents hosted by web servers or held in a file system.

6. A_______________ is a software application that enables a user to display and interact with HTML documents hosted by web servers.

7. Although browsers are typically used to access the ______________ , they can also be used to access information provided by web servers in private networks or content in file systems.

8. There are three types of client software, which are ______________, email client and file transfer protocol.

9. An ___________client is an example of client software.

10. Web browsers available for personal computers include ___________,Safari, Netscape and Opera.

11. File Transfer Protocol is an example of ______________software.

12. File Transfer Protocol client is used to connect two computers over the _____________so that the user of one computer can transfer files and perform file commands on the other computer.

13. Web browsers allow a user to quickly and easily access information provided on many __________at many websites by surfing these links.

14. An ______________is a computer program that is used to read and send email.

LESSON 99Setting Network Facilities

1. Select an ISA (____) or PCI ( _____) slot depending on the Network Interface Card.A. Black, WhiteB. White, BlackC. Brown, BlackD. Black, Yellow

2. Below are the steps on how to insert the Network Interface Card:I. Disconnect the PC from the power and then remove the casing or side panel of your machine


SCORE

II. Select an ISA or PCI slot depending on the Network Interface CardIII. Remove the back blanking plate from behind the slot you have selected for the Network Interface CardIV. Check the back of your PC for a network socketA. II, IV, I, IIIB. I, II, III, IVC. IV,I,II,IIID. IV, II, I, III

3. After successfully installing the card into the slot, what should you do?A. Remove the casingB. Restart the computerC. Secure the card in place using the nailD. Secure the card in place using the screw from the blanking plate

4. Why are we required to firmly press down the Network Interface Card into the slot?A. To make sure it is safeB. To make sure it is easy to useC. To make sure it is properly seatedD. To make sure it is easy to replace

5. The easiest way to check whether the PC has a Network Interface Card is by______A. checking your PC motherboardB. examine your network card inside the PCC. checking the back of the PC for a network socket

D. checking the "Hardware Profile" in computer properties

6. A Network Interface Card (NIC) is easy to install. The only considerations for installation is that you should have _____A. a PCI slot or ISA slotB. a Network Interface CardC. a personal computerD. an available NIC slot

7. Before installing an NIC, please check whetherA. you have a PCI slotB. you have an ISA slotC. you have an available slotD. you have an available slot and slot type

8. Network Interface Card, or NIC, also referred to as a " _______", is a piece of computer hardware designed to allow computers to communicate over a computer network.A. adapterB. ethernet cardC. expansion cardD. network adapter

9. A Network Interface Card (NIC) is an expansion card that allows the transmission of data over a ________network.A. WiFiB. cableC. satelliteD. wireless

10. Insert the card into the ____by pressing down firmly on the Network Interface Card.A. slotB. portC. plateD. socket

LESSON 100Installation of Network Interface Card


SCORE

LESSON 101 Crimping Straight Cable


SCORE

1. ________________ cable has four twisted pairs of wire for a total of eightindividually insulated wires.

2. ____________ is used to cut and strip cables.

3. A straight cable acts as an ________ enabling a device with a network interface cardto be attached to a network.

4. The total length of wire segments between a PC and a hub or between two PCscannot exceed ________.

5. A common form of network media is the ___________ known as Unshielded TwistedPair Category 5 cable.

6. ____________are used to cut the cable off at the reel and to fine tune the cableends during assembly.

NO STATEMENT TRUE FALSE1 A wrench is used to cut and strip cable.

2 The total length of wire segments between a PC and a hub orbetween two PCs can exceed more than 100 meters.

3 If the cable crimping process is done properly, an averageperson will not be able to pull the plug off the cable with his orher bare hands.

4 In the cable crimping process, you have to strip one end of thecable with the pen-knife.

5 In trimming cable wires, it is very important that the unstrippedor untwisted end be slightly less than half-inch long.

6 Cable strippers are used to cut the cable off at the reel and to fine tune the cable ends during assembly.

7 In RJ-45 modular plug, RJ means "Registered Jack".

8 A common form of network media is the UTP Cat 5 known asUnshielded Twisted-Pair Category 5 cable.

9 In arranging the wires of the network cable, it is not necessary tospread and arrange the pairs in order.

10 A straight cable acts as an extension enabling a device Network Interface Card to be attached to a network.

LESSON 102 Crimping Crossover Cable


SCORE

NO STATEMENT TRUE FALSE1 Category 5 cable can have more than half of an inch (1.3

cm) at the end.

2 You need a pair of scissors that will allow you to cut a group ofcables in a straight line.

3 The tools for cable crimping are such as cables, pliers, crimpers and scissors.

4 When you crimp the cable, be sure it is properly rated for CAT 5.

5 To make the cable, start by stripping off about two inches (5 cm) of the plastic jacket off the end of the cable.

6 BJ-45 plug is used as a connector to CAT 5 cable in crossovercable crimping.

7 The crossover cable cannot be used to directly connect twocomputers to each other without the use of a hub or switch.

8 In a cable crimping test, you should see that the copperconnectors at the end of the RJ-45 plug should not be pressed down into the wires.

9 When you begin to crimp the cable, be sure to keep a good grip on that RJ-45 plug and the cable.

10 Toward the back of the RJ-45 plug (where the jacket meets the RJ-45 plug) it should be crimped securely holding the jacket or cable in the RJ-45 plug.

LESSON 103 Configuration of Network


SCORE

LESSON 104 Testing of Network


SCORE

1. To use ping, open the ___________________window.

2. If the problem persists, you have to check your network _____________or protocol.

3. In this lesson, students will be taught on the processes of network ______________

4. The best utility to have a quick TCP/IP connection test is ________________

5. The ping utility then send and receive __________________of information.

6. If ping displays error messages such as Bad IP Address, Request Timed Out, orUnknown Host or could not send and receive packets over the ______________, youshould verify if the IP address is valid.

7. There are _______________steps for testing network.

8. Once you have installed the _______________ , cables and software, you cantest the new TCP/IP protocol.

9. If you have successfully sent and received packets, all is well with the ____________ connection.

10. Enter the name or ______________you want to test after the ping command.

LESSON 105 Shared Folder


SCORE

1. A ______________is a named collection of related files that can be retrieved, moved and otherwise manipulated as one entity.

2. Folders can be created _____________folders.

3. The files in a folder can be copied or moved to other ____________,computers and even to the Internet.

4. If the file or folder you want to share is not located in My Documents or one of its subfolders, use ___________to find it.

5. In Windows, Macintosh and other operating systems, a folder is a named collection of related files that can be retrieved, moved and _____________as one entity.

6. You can share the files and folders stored on your computer and on your _______________

7. To change the name of your folder on the network, in the ______________text box, type a new name for your folder.

8. The ______________you choose depends on whom you want to share the files or folders with and the computer used to access them.

9. Anyone who has user access to the network can read, copy or change files stored in that folder when you __________ a drive or folder.

10. Folders can contain many different types of _________________, such as documents, music, pictures, videos and programs.

LESSON 106 Wireless and Mobile

1. A wireless digital mobile telephone system used in Europe and other parts of the world.


SCORE

Answer:

2. A packet-based wireless communication service that provides continuous connection to the Internet for mobile phone and computer users.

Answer:

3. A faster version of the Global System for Mobile (GSM) wireless service.

Answer:

4. A broadband, packet-based system offering a consistent set of services to mobile computer and phone users no matter where they are located in the world.

Answer:

5. A set of communication protocols to standardise the way wireless devices, such as cellular telephones and radio transceivers, can be used for Internet access.

Answer:

6. The world's first "smart phone service" for Web browsing introduced in Japan;provides colour and video over telephone sets.

Answer:

1. ______________________ is a digital mobile telephone system used in Europe and other parts of the world, the accepted wireless telephone standard in Europe.

2. ______________________ is a packet-based wireless communication service that provides continuous connection to the Internet for mobile phone and computer users.

3. ______________________ is a faster version of the Global System for Mobile (GSM) wireless service.

4. ______________________ is a broadband, packet-based system offering a consistent set of services to mobile computer and phone users no matter where they are located in the world.

5. ______________________ is a set of communication protocols to standardize the way wireless devices, such as cellular telephones and radio transceivers, can be used for Internet access.

6. ______________ is the world's first "smart phone service" for Web browsing, first introduced in Japan; provides colour and video over telephone sets.

7. ______________________ is the operation of wireless devices or systems in homes and offices, and in particular, equipment connected to the Internet via specialised modems.

8. ______________________ is the use of wireless devices or systems aboard motorised, moving vehicles.

LESSON 107 Mobile Computing

1. The IEEE 802.11 group of standards specifies the technologies for it.

Answer:


SCORE

2. It uses cellular network technologies such as GPRS / CDMA2000 / GSM to transfer data.

Answer:

3. It is also known as IEEE 802.15.1.

Answer:

4. It defines physical specifications communications protocol standards for the short range exchange of data over infrared light and for uses such as Personal Area Networks(PANs).

Answer:

5. Various computers now have a cellular radio built in, which allows the user to send and receive data.

Answer:

6. It is a radio standard and communications protocol primarily designed for low powerconsumption, within a short range.

Answer:

7. Since it is line-of-sight light transmission, it is sensitive to fog and other atmosphericconditions.

Answer:

1. _________ __ computing is the use of portable computing devices to access the Internet and data on their home or work computers from anywhere in the world.

2. A ____________________ is a computer small enough to fit in one hand.

3. ____________________ are handheld devices that were originally designed as personal organisers.

4. A _____________________ is any electronic handheld device that integrates the functionality of a mobile phone, personal digital assistant or other information appliance.

5. A _______ ___ LAN is one in which a notebook user can connect to a Local Area Network through a wireless (radio) connection.

6. The IEEE ________ __ group of standards specify the technologies for wireless LANs.

7. A _____________________ uses cellular network technologies such as GPRS /CDMA2000 / GSM to transfer data.

LESSON 108 Internet Technology

1. Internet __________ is a broad range of technologies for web development, webproduction, design, networking, telecommunication and e-commerce.

2. ________________ is one of the Internet technologies that allow users to make telephone calls using a broadband Internet connection.


SCORE

3. Voice over Internet Protocol is a method for taking analog audio signals and turningthem into _______________ data that can be transmitted over the Internet.

4. There are three different VoIP services in common use today, which are ATA,________________ and computer-to-computer.

5. The ________________ allows you to connect a standard phone to your computer or your Internet connection for use with VoIP.

6. The simplest type of ATA has one or more _________________ jacks to plug atelephone and/or a fax into a USB connector that plugs into the user's computer.

7. In an enterprise setting, an ATA usually has multiple telephone jacks and_________________ connection to a 10/100BaseT Ethernet hub or switch, and isused to connect to a Local Area Network.

8. Protocols used to carry voice signals over the IP network are commonly referred to as _________________.

9. VoIP phone conversations can become distorted, garbled or lost because of_________________ errors.

10. Devices needed to place a computer-to-computer Internet telephone call is thesoftware, a microphone, ____________________, a sound card and an Internetconnection.

LESSON 109 Internet Services

1. _______________ consists of a worldwide collection of electronic documents.A. IRC

B. EmailC. WWWD. Search engine


SCORE

2. _______________ is the transmission of messages and files via a computer network.A. IRCB. EmailC. WWWD. Newsgroup

3. _________________ is a system for chatting that involves a set of rules andconventions and client/server software.A. IRCB. EmailC. WWWD. Newsgroup

4. _________________ is an online area in which users have written discussions about aparticular subject.A. IRCB. EmailC. WWWD. Newsgroup

5. Different will serve different purposes.A. IRCB. emailC. WWWD. search engines

6. ________________ are special websites on the Internet to find information you need.A. IRCsB. Emails

C. WWWsD. Search engines

7. _________________ is a real-time conversation that takes place on a computer.A. IRCB. EmailC. WWWD. Search engine

8. Each electronic document on the Web is called a _________________ which can contain text, graphics, audio and video.A. web pageB. newsgroupC. search engineD. World Wide Web

9. A user utilises a/an ______________ program to create, send, receive, forward,store, print and delete electronic messages.A. emailB. newsgroupC. search engineD. World Wide Web

10. The entire collection of Internet newsgroups is called _______________, which contains tens of thousands of newsgroups about a multitude of topics.A. UserB. UsenetC. UsegroupD. World Wide Web

LESSON 110 Internet Services

NO STATEMENT TRUE FALSE1 A Personal Area Network (PAN) is a computer network used for

communication among computer devices including PCs, laptops, printers, telephones, digital cameras, mobile phones, video game consoles and personal digital assistants.

2 The IEEE standard for Wireless LANs 802.13.

3 WiMAX would operate similar to WiFi but at higher speeds, over greater


SCORE

distances and for a greater number of users.

4 VPN uses tunnelling mechanism to maintain privacy and security of the data. Tunnelling means transmitting data packets across a public network.

5 Personal area networks may only be wired with USB ports.

6 Wireless Local Area Network (WLAN) is a type of LAN that uses high-frequency radio waves to communicate between nodes.

7 VPN is often used by companies to provide access from their internal network resources to their home or mobile workers.

8 Bluetooth is the popular wireless PAN used by most people, especially the mobile phone technologies, and it applies the IEEE 802.11 standards.

1. _________________ improves user mobility, speed and scalability to move around within a broad coverage area and still be connected to the network.

2. A _________________ is a computer network used for communication among computer devices close to one person like PCs, laptops, printers, telephones, digital ameras, mobile phones, video game consoles and personal digital assistants.

3. A _________________ is a network that uses a public telecommunication infrastructure, such as the Internet, from remote offices or individuals with secure access to their organization's private network

4. WiMAX would operate similar to _________________ but at higher speeds, over greater distances and for a greater number of users.

5._______________by companies to provide access from their internal network resources to their home or mobile workers.

6. Data or information in _________________ travels via tunnelling.

7. _________________ is generally done by encapsulating the private network data and protocol information within the public network transmission units so that the private network protocol information appears to the public network as data.
