Cisco Realtests 640-802 Exam Bundle · Cisco Realtests 640-802 Exam Bundle Number : 640 ... RIP requires less configuration to ... A network associate is configuring a router for

Cisco Realtests 640-802 Exam Bundle

Number: 640-802Passing Score: 800Time Limit: 300 minFile Version: 24.4

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Cisco 640-802 Exam Bundle

Exam Name: Cisco Cisco Certified Network Associate

For Full Set of Questions please visit: http://www.realtests.com/exam/640-802.htm

Question Set 1

QUESTION 1What interfaces on Router1 have not had any configurations applied? (Choose two)

A. A - Ethernet 0B. B - FastEthenet 0/0C. C - FastEthernet 0/1D. D - Serial 0E. E - Serial 0/0F. F - Serial 0/1

Correct Answer: CFSection: [none]Explanation

Explanation/Reference:Use the show ip interface brief to identify what interfaces Router 1 have. Notice that Router1 does not haveEthernet 0 and Serial 0 interfaces. FastEthernet 0/0 and Serial 0/0 were configured with their IP addressestherefore only FastEthernet 0/1 and Serial0/1 have not had any configurations applied.

QUESTION 2Including the address on the Router1 FastEthernet interface, how many hosts can have IP addresses on theLAN to which Router1 is connected?

A. A - 6B. B - 14C. C - 62D. D - 128

Correct Answer: BSection: [none]Explanation

Explanation/Reference:The mask address of interface Fa0/0 of Router1 is /28 (as shown in question 1), which has four 0 bits (11111111.1111 1111.1111 1111.1111 0000). Therefore there are 24 - 2 = 14 assignable IP addresses for hosts onthe LAN.


QUESTION 3You have been hired by PC Consultants Incorporated to document the layout of the network. Complete thefollowing tasks:Complete the network topology shown in the graphic by dragging the labels below with the appropriate routertypes, interface types and IP addresses to the graphic. Find the information you need by using the routerconsole attached to the Home router.

A.

Correct Answer: ASection: [none]Explanation

Explanation/Reference:First we have to find out the types of these routers to place them in correct positions by using show cdpneighbors command on HOME router:

There are 3 columns we should pay more attention to:

+ Local Intrfce (Local Interface): the interface on the device you are using "show cdp neighbors" command. Inthis case it is the interface of HOME router

+ Platform: the platform of neighbor device

+ Port ID: the neighbor device's port or interface which links to the HOME router

From the exhibit, the "Local Interface", "Platform" and "Port ID" columns, we can identify where these fourrouters should be placed and their corresponding associated ports

Finally, we need to identify the IP addresses of four interfaces on neighboring routers using show running-config command:

And we can easily assign corresponding ip addresses to four neighbor routers, which are on the same networkwith HOME router's interfaces

Please remember in the real CCNA Exam the routers' types, ip addresses and interfaces may be different! Somake sure you understand how it works!

QUESTION 4

The frame has been received by the ILM router and is to be delivered on the local LAN. Which two statementsdescribe the addressing of the Ethernet frame that has been created by the ILM router ? (Choose two)

A. A - The destination address will the be the MAC address of the switch A port attached to the Fa0/0 interfaceof the ILM router .

B. B - The destination address will be the MAC address of the WWW server.C. C - The destination address will be the MAC address of the A switch port attached to the WWW server.D. D - The source address will be the MAC address of host F.E. E - The source address will be the MAC address of interface Fa0/0 of the ILM router.

Correct Answer: BESection: [none]Explanation

Explanation/Reference:

Question Set 1

QUESTION 1

When a packet is sent from Host 1 to Server 1, in how many different frames will the packet be encapsulatedas it is sent across the internetwork?

A. A - 0B. B - 1C. C - 2D. D - 3E. E - 4

Correct Answer: DSection: [none]Explanation

Explanation/Reference:Answer: C or D(depending on your understand, please read the comments to understand why)

from my understanding, the answer would be 2 because we are talking about PACKETS not frames"When a packet is sent from Host 1 to Server 1, in how many different frames will the PACKET beencapsulated as it is sent across the internetwork?"

Dear 9 tutor and others pls check my description is correct or not

--> as we all know that MAC address is always Local to the Lan right ?? it will not go beyond the LAN ...

so how many so here the frame encapsulation take place in this way pls note this

1))))))) host1 to R1 use source Mac =Host 1 Destination Mac = e0 Mac of R22))))))) R1 serial to R2 serial---> re encapsulation take place and the source serial Mac of R1 and DestinationMac of R23))))) R2 e0 Mac as source , sever 1 NIC Mac address destination

so the answer is very much clear that it is 3

don't think about HDLC and Frame -relay encapsulation is here .. why we want to think that ??

its not related to this question i think , and hdlc, frame-relay, PPP are serial encapsulation protocols and neverthey run in Ethernet port. so how anyone say the answer is 2

QUESTION 2

What must be configured on the network in order for users on the Internet to view web pages located on WebServer 2?

A. A - On router R2,configure a default static route to the 192.168.1.0 networkB. B - On router r2, configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 addressC. C - On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10D. D - On router R1, configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to

Web Server 2

Correct Answer: CSection: [none]Explanation


QUESTION 3

On which router should a default route be configured?

A. A - on the ISP routerB. B - on R1C. C - on R2D. D - on R3E. E - on R4



QUESTION 4With all links operational and all routers converged, which of the following describes the messaging betweenrouters?

A. A - Hellos are sent every five seconds.B. B - Multicasts are sent every 60 seconds.C. C - Broadcasts are sent every 30 seconds.D. D - No messaging unless the topology changes.



QUESTION 5Why would RIP be used rather than static routes on R1, R2, R3, and R4?

A. A - RIP creates more accurate than static routes.B. B - RIP uses less network resources than do static routes.C. C - RIP is supported by more different vendors equipment than static routes.D. D - RIP requires less configuration to automatically adjust when links go down than static routes.



QUESTION 6On which router should a static route be configured?

A. A - on the ISP routerB. B - on R1C. C - on R2D. D - on R3E. E - on R4



QUESTION 7Refer to the topology. Using the information shown, answer the five questions shown on the Questions tab

If most of the communication is between hosts and the servers, which switch is best as the root switch forVLAN 20?

A. A - Sw-AB. B - Sw-B

C. C - Sw-CD. D - Sw-DE. E - Sw-E

Correct Answer: ESection: [none]Explanation

Explanation/Reference:Answer: E

Explanation:

Server 3 and Server 4 belong to VLAN 20 and are connected to Switch-E. If the question asks which switch isbest for the whole network then the answer should be Switch-B because it is the most centralized switch on thenetwork.

QUESTION 8What technology helps prevent frames from looping continuously through this switched network?

A. A - ARPB. B - VTPC. C - STPD. D - EIGRPE. E - CSMA/CD



QUESTION 9What type of link is needed between Sw-A and Sw-B so host C and host D can communicate through Sw-A tothe servers?

A. A - trunkB. B - accessC. C - multi-accessD. D - straight-through


Explanation/Reference:Answer: A

Explanation:

Communication between different VLANs requires a trunk link to forward traffic normally.

Question Set 1

QUESTION 1A network associate is configuring a router for the weaver company to provide internet access. The ISP hasprovided the company six public IP addresses of 198.18.184.105 198.18.184.110. The company has 14 hoststhat need to access the internet simultaneously. The hosts in the company LAN have been assigned privatespace addresses in the range of 192.168.100.17 – 192.168.100.30.


：The following have already been configured on the router

- The basic router configuration

- The appropriate interfaces have been configured for NAT inside and NAT outside

- The appropriate static routes have also been configured (since the company will be a stub network, no routingprotocol will be required.)

- All passwords have been temporarily set to "cisco"

A.

Correct Answer: Section: [none]Explanation

Explanation/Reference:The company has 14 hosts that need to access the internet simultaneously but we just have 6 public IPaddresses from 198.18.184.105 to 198.18.184.110/29. Therefore we have to use NAT overload (or PAT)

Double click on the Weaver router to open it

Router>enableRouter#configure terminal

First you should change the router's name to Weaver

Router(config)#hostname Weaver

Create a NAT pool of global addresses to be allocated with their netmask.

Weaver(config)#ip nat pool mypool 198.18.184.105 198.18.184.110 netmask 255.255.255.248

Create a standard access control list that permits the addresses that are to be translated

Weaver(config)#access-list 1 permit 192.168.100.16 0.0.0.15

Establish dynamic source translation, specifying the access list that was defined in the prior step

Weaver(config)#ip nat inside source list 1 pool mypool overload

This command translates all source addresses that pass access list 1, which means a source address from192.168.100.17 to 192.168.100.30, into an address from the pool named mypool (the pool contains addressesfrom 198.18.184.105 to 198.18.184.110)

Overload keyword allows to map multiple IP addresses to a single registered IP address (many-to-one) byusing different ports

The question said that appropriate interfaces have been configured for NAT inside and NAT outsidestatements.

This is how to configure the NAT inside and NAT outside, just for your understanding:

Weaver(config)#interface fa0/0Weaver(config-if)#ip nat inside

Weaver(config-if)#exit

Weaver(config)#interface s0/0Weaver(config-if)#ip nat outsideWeaver(config-if)#end

Finally, we should save all your work with the following command:

Weaver#copy running-config startup-config

Check your configuration by going to "Host for testing" and type:

C:\>ping 192.0.2.114

The ping should work well and you will be replied from 192.0.2.114

Question Set 1

QUESTION 1Refer to the exhibit. Why would the network administrator configure RA in this manner?

A. A. to give students access to the InternetB. B. to prevent students from accessing the command prompt of RAC. C. to prevent administrators from accessing the console of RAD. D. to give administrators access to the InternetE. E. to prevent students from accessing the InternetF. F. to prevent students from accessing the Admin network



QUESTION 2The following access list below was applied outbound on the E0 interface connected to the 192.169.1.8/29LAN:

access-list 135 deny tcp 192.169.1.8 0.0.0.7 eq 20 anyaccess-list 135 deny tcp 192.169.1.8 0.0.0.7 eq 21 any

How will the above access lists affect traffic?

A. A - FTP traffic from 192.169.1.22 will be deniedB. B - No traffic, except for FTP traffic will be allowed to exit E0C. C - FTP traffic from 192.169.1.9 to any host will be deniedD. D - All traffic exiting E0 will be deniedE. E - All FTP traffic to network 192.169.1.9/29 will be denied

Correct Answer: D

Section: [none]Explanation


Answer: D

Explanation:

There is always an implicit "deny all" command at the end of every access list, so if an access list doesn't haveany "permit" command, it will block all the traffic. If we use the command "access-list 135 permit ip any any" atthe end of this access list then the answer should be C - FTP traffic from 192.169.1.9 to any host will bedenied.

QUESTION 3The following configuration line was added to router R1

Access-list 101 permit ip 10.25.30.0 0.0.0.255 any

What is the effect of this access list configuration?

A. A - permit all packets matching the first three octets of the source address to all destinationsB. B - permit all packet matching the last octet of the destination address and accept all source addressesC. C - permit all packet matching the host bits in the source address to all destinationsD. D - permit all packet from the third subnet of the network address to all destinations



QUESTION 4What would be the effect of issuing the command ip access-group 114 in to the fa0/0 interface?

A. A - Attempts to telnet to the router would failB. B - It would allow all traffic from the 10.4.4.0 networkC. C - IP traffic would be passed through the interface but TCP and UDP traffic would notD. D - Routing protocol updates for the 10.4.4.0 network would not be accepted from the fa0/0 interface


Explanation/Reference:Explanation:

From the output of access-list 114: access-list 114 permit ip 10.4.4.0 0.0.0.255 any we can easily understandthat this access list allows all traffic (ip) from 10.4.4.0/24 network

QUESTION 5What would be the effect of issuing the command access-group 115 in on the s0/0/1 interface?

A. A - No host could connect to Router through s0/0/1B. B - Telnet and ping would work but routing updates would fail.

C. C - FTP, FTP-DATA, echo, and www would work but telnet would failD. D - Only traffic from the 10.4.4.0 network would pass through the interface



First let's see what was configured on interface S0/0/1:

Recall that each interface only accepts one access-list, so when using the command “ip access-group 115 in”on the s0/0/1 interface it will overwrite the initial access-list 102. Therefore any telnet connection will beaccepted (so we can eliminate answer C).B is not correct because if telnet and ping can work then routing updates can, too.D is not correct because access-list 115 does not mention about 10.4.4.0 network. So the most reasonableanswer is A.

But here raise a question…

The wildcard mask of access-list 115, which is 255.255.255.0, means that only host with ip addresses in theform of x.x.x.0 will be accepted. But we all know that x.x.x.0 is likely to be a network address so the answer A:“no host could connect to Router through s0/0/1” seems right…

But what will happen if we don’t use a subnet mask of 255.255.255.0? For example we can use an ip addressof 10.45.45.0 255.255.0.0, such a host with that ip address exists and we can connect to the router through thathost. Now answer A seems incorrect!

Please comment if you have any idea for this sim!

Question Set 1

QUESTION 1On a network of one department, there are four PCs connected to a switch, as shown in the following figure:

After the Switch1 restarts. Host A ( the host on the left ) sends the first frame to Host C (the host on the right).What the first thing should the switch do?

A. A. Switch1 will add 192.168.23.12 to the switching table.B. B. Switch1 will add 192.168.23.4 to the switching table.C. C. Switch1 will add 000A.8A47.E612 to the switching table.D. D. None of the above



QUESTION 2The user of Host1 wants to ping the DSL modem/router at 192.168.1.254. Based on the Host1 ARP table that isshown in the exhibit, what will Host1 do?

A. A. send a unicast ARP packet to the DSL modem/routerB. B. send unicast ICMP packets to the DSL modem/routerC. C. send Layer 3 broadcast packets to which the DSL modem/router respondsD. D. send a Layer 2 broadcast that is received by Host2, the switch, and the DSL modem/router

Correct Answer: B

Section: [none]Explanation


QUESTION 3Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)

A. A. It is locally significant.B. B. It is globally significant.C. C. It is needed to identify a unique instance of an OSPF database.D. D. It is an optional parameter required only if multiple OSPF processes are running on the router.E. E. All routers in the same OSPF area must have the same process ID if they are to exchange routing

information.

Correct Answer: ACSection: [none]Explanation


QUESTION 4Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choosetwo.)

A. A. It establishes a static route to the 172.16.3.0 network.B. B. It establishes a static route to the 192.168.2.0 network.C. C. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network.D. D. It configures the router to send any traffic for an unknown destination out the interface with the address

192.168.2.4.E. E. It uses the default administrative distance.F. F. It is a route that would be used last if other routes to the same destination exist.

Correct Answer: AESection: [none]Explanation


QUESTION 5How should a router that is being used in a Frame Relay network be configured to avoid split horizon issuesfrom preventing routing updates?

A. A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface.

B. B. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.C. C. Configure many sub-interfaces on the same subnet.D. D. Configure a single sub-interface to establish multiple PVC connections to multiple remote router

interfaces.

Correct Answer: ASection: [none]

Explanation


QUESTION 6Your company wants to reconfigure a Catalyst 2950. which actions must be taken to erase the oldconfiguration? (Choose three)

A. A - Erase flashB. B - Restart the switchC. C - Delete the VLAN databaseD. D - Erase the startup configuration

Correct Answer: BCDSection: [none]Explanation


QUESTION 7An administrator issues the command "ping 127.0.0.1" from the command line prompt on a PC host namedPC1. If an ICMP reply is received, what does this confirm?

A. A - The PC host PC1 has connectivity with a local hostB. B - The PC host PC1 has connectivity with a Layer 3 deviceC. C - The PC host PC1 has a default gateway correctly configuredD. D - The PC host PC1 has connectivity up to Layer 5 of the OSI modelE. E - The PC host PC1 has the TCP/IP protocol stack correctly installed



Answer: E

Explanation:

If you are having problems with your network then issue the command "ping 127.0.0.1" to prove the networkcard and the TCP/IP software is working correctly. Address 127.0.0.1 is reserved for the test loop backpurpose.

QUESTION 8Which two statements describe characteristics of IPv6 unicast addressing? (Choose two)


A. A. Global addresses start with 2000::/3B. B. Link-local addresses start with FE00:/12C. C. Link-local addresses start with FF00::/10D. D. There is only one loopback address and it is ::1E. E. If a global address is assigned to an interface, then that is the only allowable address for the interface.

Correct Answer: ADSection: [none]Explanation


Answer: A D

Explanation:

Below is the list of common kinds of IPv6 addresses: Loopback address ::1 Link-local address FE80::/10 Site-local address FEC0::/10 Global address 2000::/3 Multicast address FF00::/8

From the above table, we learn that A and D are correct while B and C are incorrect. Notice that the IPv6unicast loopback address is equivalent to the IPv4 loopback address, 127.0.0.1. The IPv6 loopback address is0:0:0:0:0:0:0:1, or ::1.

E is not correct because of anycast addresses which are indistinguishable from normal unicast addresses. Youcan think of anycast addresses like this: "send it to nearest one which have this address". An anycast addresscan be assigned to many interfaces and the first interface receives the packet destined for this anycast addresswill proceed the packet. A benefit of anycast addressing is the capability to share load to multiple hosts. Anexample of this benefit is if you are a Television provider with multiple servers and you want your users to usethe nearest server to them then you can use anycast addressing for your servers. When the user initiates aconnection to the anycast address, the packet will be routed to the nearest server (the user does not have tospecify which server they want to use).

QUESTION 9Refer to the exhibit. The junior network support staff provided the diagram as a recommended configuration forthe first phase of a four-phase network expansion project. The entire network expansion will have over 1000users on 14 network segments and has been allocated this IP address space:

192.168.1.1 through 192.168.5.255192.168.100.1 through 198.168.100.255

What are three problems with this design? (Choose three)

A. A - The AREA 1 IP address space is inadequate for the number of users.B. B - The AREA 3 IP address space is inadequate for the number of users.C. C - AREA 2 could use a mask of /25 to conserve IP address space.D. D - The network address space that is provided requires a single network-wide mask.E. E - The router-to-router connection is wasting address space.F. F - The broadcast domain in AREA 1 is too large for IP to function.

Correct Answer: ACESection: [none]Explanation


QUESTION 10Refer to the exhibit. The internetwork is using subnets of the address 192.168.1.0 with a subset mask of255.255.255.224. The routing protocol in use is RIP version 1. Which address could be assigned to theFastEthernet interface on RouterA?

A. A - 192.168.1.31B. B - 192.168.1.64C. C - 192.168.1.127D. D - 192.168.1.190E. E - 192.168.1.192


Explanation/Reference:255.255.255.224 = 1111 1111.1111 1111.1111 1111.1110 0000 (binary form)

Increment: 32

First subnetwork: 192.168.1.0 -> 192.168.1.31 (A is incorrect because 192.168.1.31 is a broadcast address)Second subnetwork: 192.168.1.32 -> 192.168.1.63Third subnetwork: 192.168.1.64 -> 192.168.1.95 (B is incorrect because 192.168.1.64 is a network address)Fourth subnetwork: 192.168.1.96 -> 192.168.1.127 (C is incorrect because 192.168.1.127 is a broadcastaddress)Fifth subnetwork: 192.168.1.128 -> 192.168.1.159Sixth subnetwork: 192.168.1.160 -> 192.168.1.191 (D is correct because 192.168.1.190 is the last assignablehost address of this subnetwork)Seventh subnetwork: 192.168.1.192 -> 192.168.1.224 (E is incorrect because 192.168.1.192 is a networkaddress)

QUESTION 11Refer to the exhibit. For security reasons, information about RTA, including platform and IP addresses, shouldnot be accessible from the Internet. This information should, however, be accessible to devices on the internalnetworks of RTA. Which command or series of commands will accomplish these objectives?

A. A - RTA(config)#no cdp runB. B - RTA(config)#no cdp enableC. C - RTA(config)#interface s0/0

RTA(config-if)#no cdp runD. D - RTA(config)#interface s0/0

RTA(config-if)#no cdp enable



QUESTION 12Refer to the exhibit, PC1 pings PC2. What three things will CORE router do with the data that is received fromPC1? (Choose three)

A. A - The data frames will be forwarded out interface FastEthernet0/1 of CORE router.B. B - The data frames will be forwarded out interface FastEthernet1/0 of CORE router.C. C - CORE router will replace the destination IP address of the packets with the IP address of PC2.D. D - CORE router will place the MAC address of PC2 in the destination MAC address of the frames.E. E - CORE router will put the IP address of the forwarding FastEthernet interface in the place of the source

IP address in the packets.F. F - CORE router will put the MAC address of the forwarding FastEthernet interface in the place of the

source MAC address.

Correct Answer: Section: [none]Explanation


QUESTION 13A network administrator must configure 200 switch ports to accept traffic from only the currently attached hostdevices. What would be the most efficient way to configure MAC-level security on all these ports?

A. A - Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port securitymac-address command.

B. B - Have end users e-mail their MAC addresses. Telnet to the switch to enter the switchport-port securitymac-address command.

C. C - Use the switchport port-security MAC address sticky command on all the switch ports that have enddevices connected to them.

D. D - Use show mac-address-table to determine the addresses that are associated with each port and thenenter the commands on each switch for MAC address port-security.


Explanation/Reference:Please read the explanation of question 1 to understand the use of the "switchport port-security MAC addresssticky")

A and C can be used, but instead of writing all the MAC addresses of the devices associated with each port, wecan ask the switch to learn all the MAC addresses of the associated devices automatically by the "switchportport-security mac-address sticky" command which will save much work for the administrator.

QUESTION 14Refer to the exhibit. What does STATUS=ACTIVE refer to in the output of the show frame-relay pvc command?

A. A - The PVC is experiencing congestion.B. B - The Frame Relay switch is correctly programmed with the DLCI and is operational.C. C - The router is actively broadcasting to establish a link to the Frame Relay switch.D. D - The router is connected to the local Frame Relay switch, but not to the far end device.



QUESTION 15What are two reasons that a network administrator would use access lists? (Choose two.)

A. A. to control vty access into a routerB. B. to control broadcast traffic through a routerC. C. to filter traffic as it passes through a routerD. D. to filter traffic that originates from the routerE. E. to replace passwords as a line of defense against security incursions

Correct Answer: ACSection: [none]

Explanation


QUESTION 16A single 802.11g access point has been configured and installed in the center of a square office. A few wirelessusers are experiencing slow performance and drops while most users are operating at peak efficiency. Whatare three likely causes of this problem? (Choose three.)

A. A. mismatched TKIP encryptionB. B. null SSIDC. C. cordless phonesD. D. mismatched SSIDE. E. metal file cabinetsF. F. antenna type or direction

Correct Answer: CEFSection: [none]Explanation


QUESTION 17Which type of attack is characterized by a flood of packets that are requesting a TCP connection to a server?

A. A. denial of serviceB. B. brute forceC. C. reconnaissanceD. D. Trojan horse



QUESTION 18Refer to the exhibit.

The network administrator has created a new VLAN on Switch1 and added host C and host D. Theadministrator has properly configured switch interfaces FastEthernet0/13 through FastEthernet0/24 to bemembers of the new VLAN. However, after the network administrator completed the configuration, host A couldcommunicate with host B, but host A could not communicate with host C or host D. Which commands arerequired to resolve this problem?

A. A. Router(config)# interface fastethernet 0/1.3Router(config-if)# encapsulation dot1q 3Router(config-if)# ip address 192.168.3.1 255.255.255.0

B. B. Router(config)# router ripRouter(config-router)# network 192.168.1.0Router(config-router)# network 192.168.2.0Router(config-router)# network 192.168.3.0

C. C. Switch1# vlan databaseSwitch1(vlan)# vtp v2-modeSwitch1(vlan)# vtp domain ciscoSwitch1(vlan)# vtp server

D. D. Switch1(config)# interface fastethernet 0/1Switch1(config-if)# switchport mode trunkSwitch1(config-if)# switchport trunk encapsulation isl



Communication between host A and host B on the same VLAN does not need a router but communicationbetween host A and host C (or host D) need a layer 3 device, in this case Router1, which is called a "router ona stick". From the output of Router1, we notice that there is not any route to the new network 192.168.3.0/24which host C and host D belong to. Therefore, we need to configure a subinterface for this network.

QUESTION 19A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network.From this statement, what is known about the network interface port?

A. A. This is a 10 Mb/s switch port.B. B. This is a 100 Mb/s switch port.C. C. This is an Ethernet port operating at half duplex.D. D. This is an Ethernet port operating at full duplex.E. E. This is a port on a network interface card in a PC.



QUESTION 20Which routing protocol by default uses bandwidth and delay as metrics?

A. A. RIPB. B. BGPC. C. OSPFD. D. EIGRP



Question Set 1

QUESTION 1In order to complete a basic switch configuration, drag each switch IOS command on the left to its purpose onthe right

A.


Explanation/Reference:1) enable2) configure terminal3) hostname4) Interface vlan 15) no shutdown6) ip address7) ip default-gateway

QUESTION 2Drag and drop the network user application to the appropriate description of its primary use (not all options areused)

A.


Explanation/Reference:1) web browser

2) instant message

3) e-mail

4) database

5) collaboration

QUESTION 3This topology contains 3 routers and 1 switch. Complete the topology.

Drag the appropriate device icons to the labeled DeviceDrag the appropriate connections to the locations labeled Connections.Drag the appropriate IP addresses to the locations labeled IP address

(Hint: use the given host addresses and Main router information)To remove a device or connection, drag it away from the topology.

Use information gathered from the Main router to complete the configuration of any additional routers. Nopasswords are required to access the Main router . The config terminal command has been disabled for the HQrouter. The router does not require any configuration.

Configure each additional router with the followingConfigure the interfaces with the correct IP address and enable the interfaces.Set the password to allow console access to consolepwSet the password to allow telnet access to telnetpwSet the password to allow privilege mode access to privpw

Note: Because routes are not being added to the configurations, you will not be able to ping through theinternetwork.All devices have cable autosensing capabilities disabled.All hosts are PC’s

A.



Specify appropriate devices and drag them on the "Device" boxes

For the device at the bottom-right box, we notice that it has 2 interfaces Fa0/2 and Fa0/4; moreover the linkconnects the PC on the right with the device on the bottom-right is a straight-through link -> it is a switch

The question stated that this topology contains 3 routers and 1 switch -> two other devices are routers

(Host D and host E will be automatically added after placing two routers. Click on them to access neighboringrouters)

Specify appropriate connections between these devices:

+ The router on the left is connected with the Main router through FastEthernet interfaces: use a crossovercable+ The router on the right is connected with the Main router through Serial interfaces: use a serial cable+ The router on the right and the Switch: use a straight-through cable+ The router on the left and the computer: use a crossover cable

(To remember which type of cable you should use, follow these tips:

- To connect two serial interfaces of 2 routers we use serial cable- To specify when we use crossover cable or straight-through cable, we should remember:Group 1: Router, Host, ServerGroup 2: Hub, SwitchOne device in group 1 + One device in group 2: use straight-through cableTwo devices in the same group: use crossover cable

For example: we use straight-through cable to connect switch to router, switch to host, hub to host, hub toserver... and we use crossover cable to connect switch to switch, switch to hub, router to router, host to host... )

Assign appropriate IP addresses for interfaces:

From Main router, use show running-config command:

(Notice that you may see different IP addresses in the real CCNA exam, the ones shown above are just usedfor demonstration)

From the output we learned that the ip address of Fa0/0 interface of the Main router is 192.168.152.177/28.This address belongs to a subnetwork which has:

Increment: 16 (/28 = 255.255.255.240 or 1111 1111.1111 1111.1111 1111.1111 0000)Network address: 192.168.152.176 (because 176 = 16 * 11 and 176 < 177)Broadcast address: 192.168.152.191 (because 191 = 176 + 16 - 1)

And we can pick up an ip address from the list that belongs to this subnetwork: 192.168.152.190 and assign itto the Fa0/0 interface the router on the left

Use the same method for interface Serial0/0 with an ip address of 192.168.152.161

Increment: 16Network address: 192.168.152.160 (because 160 = 16 * 10 and 160 < 161)Broadcast address: 192.168.152.175 (because 176 = 160 + 16 - 1)

-> and we choose 192.168.152.174 for Serial0/0 interface of the router on the right

Interface Fa0/1 of the router on the left

IP (of the computer on the left) : 192.168.152.129/28

Increment: 16Network address: 192.168.152.128 (because 128 = 16 * 8 and 128 < 129)Broadcast address: 192.168.152.143 (because 143 = 128 + 16 - 1)

-> we choose 192.168.152.142 from the list

Interface Fa0/0 of the router on the right

IP (of the computer on the left) : 192.168.152.225/28

Increment: 16Network address: 192.168.152.224 (because 224 = 16 * 14 and 224 < 225)Broadcast address: 192.168.152.239 (because 239 = 224 + 16 - 1)-> we choose 192.168.152.238 from the list

Configure two routers on the left and right with these commands:

Router1 = router on the left

Assign appropriate IP addresses to Fa0/0 & Fa0/1 interfaces:

Router1>enableRouter1#configure terminalRouter1(config)#interface fa0/0Router1(config-if)#ip address 192.168.152.190 255.255.255.240Router1(config-if)#no shutdown

Router1(config-if)#interface fa0/1

Router1(config-if)#ip address 192.168.152.142 255.255.255.240Router1(config-if)#no shutdown

Set passwords (configure on two routers)

+ Console password:

Router1(config-if)#exitRouter1(config)#line console 0Router1(config-line)#password consolepwRouter1(config-line)#loginRouter1(config-line)#exit

+ Telnet password:

Router1(config)#line vty 0 4Router1(config-line)#password telnetpwRouter1(config-line)#loginRouter1(config-line)#exit

+ Privilege mode password:

Router1(config)#enable password privpw

Save the configuration:

Router1(config)#exitRouter1#copy running-config startup-config

Configure IP addresses of Router2 (router on the right)

Router2>enableRouter2#configure terminalRouter2(config)#interface fa0/0Router2(config-if)#ip address 192.168.152.238 255.255.255.240Router2(config-if)#no shutdown

Router2(config-if)#interface serial0/0Router2(config-if)#ip address 192.168.152.174 255.255.255.240Router2(config-if)#no shutdown

and set console, telnet and privilege mode passwords for Router2 as we did for Router1, remember to save theconfiguration when you finished

QUESTION 4The above provides some descriptions, while the below provides some routing protocols. Drag the above itemsto the proper locations.

A.



Enhanced Interior Gateway Routing Protocol (EIGRP) is a Cisco proprietary routing protocol, so it is vendor-specific. By default, EIGRP internal routes have an administrative distance value of 90.

OSPF uses cost as its metric. By default, the cost of an interface is calculated based on bandwidth with the

formula cost= 10000 0000/bandwith (in bps). OSPF elects a DR on each broadcast and nonbroadcastmultiaccess networks (like Ethernet and Frame Relay environments, respectively). It doesn't elect a DR onpoint-to-point link (like a serial WAN).

QUESTION 5Construct the command sequence to configure an IP address on a serial interface (not all options are used)

A.


Explanation/Reference:1) Hub# configure terminal2) Hub(config)# interface s0/03) Hub(config-if)# ip address 10.8.5.255 255.255.252.04) Hub(config-if)# no shutdown5) Hub(config-if)# description T1 to WAN

Explanation:

One thing interesting in the answers is that the command ip address "10.8.5.255 255.255.252.0" (answer 3) iscorrect because 10.8.5.255 255.255.255.0 is not a broadcast address. Let's analyze this case a bit closer:

Increment: 4 for the third octet (255.255.252.0 = 1111 1111.1111 1111.1111 1100.0000 0000)First subnetwork range: 10.8.0.0 to 10.8.3.255Second subnet range: 10.8.4.0 to 10.8.7.255...

Therefore 10.8.3.255 and 10.8.7.255 are the broadcast addresses but not 10.8.5.255. So we can assign thisaddress to s0/0 interface.

( Notice that the command Hub(config)# ip address 172.16.20.21 255.255.255.0 is only correct only if it is ininterface mode, which is Hub(config-if)# )

QUESTION 6Drag the options on the left under the type of switch port that they describe on the right.

A.



Question Set 1

QUESTION 1

Central Florida Widgets recently installed a new router in their Apopka office. Complete the network installationby performing the initial router configurations and configuring RIPv2 routing using the router command lineinterface (CLI) on the Apopka router.

Configure the router per the following requirements:

Name of the router is ApopkaEnable-secret password is cisco10The password to access user EXEC mode using the console is RouterPassThe password to allow telnet access to the router is scan90

IPv4 addresses must be configured as follows:Ethernet network 209.165.201.0/27 - router has second assignable host address in subnet.Serial network is 192.0.2.128/28 - router has last assignable host address in the subnet. Interfaces should beenabled.Routing protocol is RIPv2.

(Notice: In the real exam the name, passwords, IP addresses and the positions of the assignable hostaddresses might be different)

Instruction:

To configure the router (Apopka) click on the console host icon that is connected to a router by a serial consolecable (shown in the diagram as a dashed black line).

Each of the windows can be minimized by clicking on the [-]. You can also reposition a window by dragging it bythe title bar.The "Tab" key and most commands that use the "Control" or "Escape" keys are not supported and are notnecessary to complete this simulation. The help command does not display all commands of the help system.

A.


Explanation/Reference:1) Name the router:

Router>enableRouter#config terminalRouter(config)#hostname Apopka

2) Enable-secret password (cisco10):

Apopka(config)#enable secret cisco10

3) Set the console password to RouterPass:

Apopka(config)#line console 0Apopka(config-line)#password RouterPassApopka(config-line)#loginApopka(config-line)#exit

4) Set the Telnet password to scan90:

Apopka(config)#line vty 0 4Apopka(config-line)#password scan90Apopka(config-line)#loginApopka(config-line)#exit

5) Configure Ethernet interface (on the right) of router Apopka:

The subnet mask of the Ethernet network 209.165.201.0 is 27. From this subnet mask, we can find out theincrement by converting it into binary form, that is /27 = 1111 1111.1111 1111.1111 1111.1110 0000. Pay moreattention to the last bit 1 because it tells us the increment, using the formula:Increment = 2place of the last bit 1 (starts counting from 0,from right to left), in this case increment = 25 = 32.Therefore:

Increment: 32Network address: 209.165.201.0Broadcast address: 209.165.201.31 (because 209.165.201.32 is the second subnetwork, so the previous IP -209.165.201.31 - is the broadcast address of the first subnet).

-> The second assignable host address of this subnetwork is 209.165.201.2/27

Assign the second assignable host address to Fa0/0 interface of Apopka router:

Apopka(config)#interface Fa0/0Apopka(config-if)#ip address 209.165.201.2 255.255.255.224Apopka(config-if)#no shutdownApopka(config-if)#exit

6) Configure Serial interface (on the left) of router Apopka:

Using the same method to find out the increment of the Serial network:

Serial network 192.0.2.128/28:

Increment: 16 (/28 = 1111 1111.1111 1111.1111 1111.1111 0000)Network address: 192.0.2.128 (because 8 * 16 = 128 so 192.0.2.128 is also the network address of this subnet)Broadcast address: 192.0.2.143

-> The last assignable host address in this subnet is 192.0.2.142/28.

Assign the last assignable host address to S0/0/0 interface of Apopka router:

Apopka(config)#interface S0/0/0 (or use interface S0/0 if not successful)Apopka(config-if)#ip address 192.0.2.142 255.255.255.240Apopka(config-if)#no shutdownApopka(config-if)#exit

7) Configure RIP v2 routing protocol:

Apopka(config)#router ripApopka(config-router)#version 2Apopka(config-router)#network 209.165.201.0Apopka(config-router)#network 192.0.2.128Apopka(config-router)#end

Save the configuration:

Apopka#copy running-config startup-config

Finally, you should use the ping command to verify all are working properly!

QUESTION 2As a Cisco technician, you need to know EIGRP protocol very well. Which of the following is true about EIGRPsuccessor routes? (Choose two)

A. A - A successor route is used by EIGRP to forward traffic to a destinationB. B - Successor routes are stored in the neighbor table following the discovery processC. C - Successor routes are flagged as "active" in the routing tableD. D - A successor route may be backed up by a feasible successor route

Correct Answer: ADSection: [none]Explanation

Explanation/Reference:B is not correct because neighbor table only contains a list of directly connected EIGRP routers that have anadjacency with this router, it doesn't contain successor routes.

C is not correct because successor routes are not flagged as "active", they are always the best route to reachremote networks and are always used to send packets.

A and D are correct because successor route is the best and primary route to a remote network. It is stored inthe routing table and topology table. If this route fails, a backup route (called feasible successor route) in thetopology table will be used to route traffic to a destination.

QUESTION 3Which three features are of OSPF routing protocol? (Choose three)

A. A - Converge quicklyB. B - OSPF is a classful routing protocolC. C - Identify the best route by use of costD. D - Before exchanging routing information, OSPF routers find out neighbors

Correct Answer: ACDSection: [none]Explanation


Question Set 1

QUESTION 1Refer to the exhibit. The network administrator is in a campus building distant from Building B. WANRouter ishosting a newly installed WAN link on interface S0/0. The new link is not functioning and the administratorneeds to determine if the correct cable has been attached to the S0/0 interface. How can the administratoraccurately verify the correct cable type on S0/0 in the most efficient manner?


A. A. Telnet to WANRouter and execute the command show interfaces S0/0B. B. Telnet to WANRouter and execute the command show processes S0/0C. C. Telnet to WANRouter and execute the command show running-configurationD. D. Telnet to WANRouter and execute the command show controller S0/0E. E. Physically examine the cable between WANRouter S0/0 and the DCE.F. F. Establish a console session on WANRouter and execute the command show interfaces S0/0


Explanation/Reference:The show controller command displays the information about the physical interface itself and the type of serialcable plugged into a serial port. In this case, it should be a DTE cable that plugs into a type of data service unit(DSU).

For your understanding, below is the output of this command:

From the output, we notice that serial 0/0 has a DTE cable and would get its clocking from the DSU.

Question Set 1

Question Set 1

QUESTION 1The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the followingstatements is true concerning this command?

A. A: This command should be executed from the global configuration mode.B. B: The IP address 10.121.16.8 is the local router port used to forward data.C. C: 102 is the remote DLCI that will receive the information.D. D: This command is required for all Frame Relay configurations.E. E: The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.


Explanation/Reference:The command frame-relay map ip 10.121.16.8 102 broadcast means to mapping the distal IP 10.121.16.8 102to the local DLCI 102. When the "broadcast" keyword is included, it turns Frame Relay network as a broadcastnetwork, which can forward broadcasts

QUESTION 2Refer to the exhibit. Which statement describes DLCI 17?

A. A: DLCI 17 describes the ISDN circuit between R2 and R3.B. B: DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.C. C: DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.D. D: DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.



DLCI stands for Data Link Connection Identifier. DLCI values are used on Frame Relay interfaces to distinguishbetween different virtual circuits. DLCIs have local significance because the identifier references the pointbetween the local router and the local Frame Relay switch to which the DLCI is connected.

QUESTION 3Which of the following are key characteristics of PPP? (Choose three.)

A. A: can be used over analog circuitsB. B: maps Layer 2 to Layer 3 addressC. C: encapsulates several routed protocolsD. D: supports IP onlyE. E: provides error correction

Correct Answer: ACESection: [none]Explanation

Explanation/Reference:No more explanation needed, below is some more information about PPP:

PPP (Point-to-Point Protocol) allows authentication such as Password Authentication Protocol (PAP) andChallenge Handshake Authentication Protocol (CHAP) and multilink connections (allow several separatephysical paths to appear to be one logical path at layer 3) and can be run over asynchronous and synchronouslinks.

QUESTION 4Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN? (Choose three)

A. A: HDLCB. B: EthernetC. C: Token RingD. D: PPPE. E: FDDIF. F: Frame Relay

Correct Answer: ADFSection: [none]Explanation


QUESTION 5What can a network administrator utilize by using PPP Layer 2 encapsulation? (Choose three.)

A. A: VLAN supportB. B: compressionC. C: authenticationD. D: sliding windowsE. E: multilink supportF. F: quality of service

Correct Answer: BCESection: [none]Explanation

Explanation/Reference:Same as question 4

QUESTION 6

The Frame Relay network in the diagram is not functioning properly. What is the cause of the problem?

A. A: The Gallant router has the wrong LMI type configuredB. B: Inverse ARP is providing the wrong PVC information to the Gallant routerC. C: The S3 interface of the Steele router has been configured with the frame-relay encapsulation ietf

commandD. D: The frame-relay map statement in the Attalla router for the PVC to Steele is not correctE. E: The IP address on the serial interface of the Attalla router is configured incorrectly


Explanation/Reference:At Attalla router, we find a deleted status but the next map statement indicates an active status, which if forGallant. Therefore we can deduce the map statement for the PVC from Attalla to Steele is incorrect. IncorrectDLCI assignments that are configured normally shown up as "deleted" in the frame relay maps.

Question Set 1

QUESTION 1

Refer to the exhibit. Using the information shown, answer the question

All hosts in the networks have been operational for several hours when the DHCP server goes down. Whathappens to the hosts that have obtained service from the DHCP server?

A. A - The hosts will not be able to communicate with any other hosts.B. B - The hosts will continue to communicate normally for a period of time.C. C - The hosts will be able to communicate with hosts outsides their own networkD. D - The hosts will only be able to communicate with other hosts by IP address not by hostname


Explanation/Reference:DHCP often uses dynamic allocation mechanism to save IP addresses, which assigns an IP address to a clientfor a limited period of time. So when the DHCP server goes down, that client can still use the allocated IPaddress for a period of time

QUESTION 2What is the purpose of the DHCP server?

A. A - to provide storage for emailB. B - to translate URLs to IP addressesC. C - to translate IPv4 addresses to MAC addressesD. D - to provide an IP configuration information to hosts


Explanation/Reference:The main purpose of the DHCP server is to provide IP configuration parameters to hosts such as the defaultgateway, domain name, Domain Name System (DNS) server...

QUESTION 3How is the message sent from a PC2 when is first powers on and attempts to contact the DHCP Server?

A. A - Layer 3 unicastB. B - Layer 3 broadcastC. C - Layer 3 multicastD. D - Without any Layer 3 encapsulation


Explanation/Reference:When a client boots up for the first time, it transmits a DHCPDISCOVER message on its local physical subnet.Because the client has no way of knowing the subnet to which it belongs, the DHCPDISCOVER is an all-subnets broadcast (destination IP address of 255.255.255.255, which is a layer 3 broadcast address). Theclient does not have a configured IP address, so the source IP address of 0.0.0.0 is used.

Question Set 1

QUESTION 1Refer to the exhibit. The goal of this network design is to provide the most efficient use of IP address space in anetwork expansion. Each circle defines a network segment and the number of users required on that segment.An IP subnetwork number and default gateway address are shown for each segment.

What are three problems with the network design as shown? (Choose three)

A. A - Interface fa0/3 has an IP address that overlaps with network 10.1.3.0/30.B. B - Interface fa0/1 has an invalid IP address for the subnet on which it resides.C. C - Interface fa0/2 has an invalid IP address for the subnet on which it resides.D. D - Network 10.1.2.0/25 requires more user address space.E. E - Network 10.1.3.128/25 requires more user address space.F. F - The IP subnet 10.1.1.0/30 is invalid for a segment with a single server.

Correct Answer: ABDSection: [none]Explanation


QUESTION 2If an ethernet port on a router was assigned an IP address of 172.16.112.1/20, what is the maximum number ofhosts allowed on this subnet?

A. A - 1024B. B - 2046C. C - 4094D. D - 4096E. E - 8190



QUESTION 3Refer to the exhibit. The internetwork is using subnets of the address 192.168.1.0 with a subnet mask of255.255.255.224. The routing protocol in use is RIP version 2. Which address could be assigned to theFastEthernet interface on RouterA?

A. A - 192.168.1.31B. B - 192.168.1.64C. C - 192.168.1.127D. D - 192.168.1.190E. E - 192.168.1.192



QUESTION 4Refer to the exhibit. HostA cannot ping HostB. Assuming routing is properly configured, what could be thecause of this problem?

A. A - HostA is not on the same subnet as its default gateway.B. B - The address of SwitchA is a subnet address.C. C - The Fa0/0 interface on RouterA is on a subnet that can't be used.D. D - The serial interfaces of the routers are not on the same subnet.E. E - The Fa0/0 interface on RouterB is using a broadcast address.



QUESTION 5Refer to the exhibit. The lakeside Company has the internetwork in the exhibit. The Administrator would like toreduce the size of the routing table to the Central Router. Which partial routing table entry in the Central routerrepresents a route summary that represents the LANS in Phoenix but no additional subnets?

A. 10.0.0.0 /22 is subnetted, 1 subnetD 10.0.0.0 [90/20514560] via 10.2.0.2 6w0d, serial 0/1

B. 10.0.0.0 /28 is subnetted, 1 subnetD 10.2.0.0 [90/20514560] via 10.2.0.2 6w0d, serial 0/1

C. 10.0.0.0 /30 is subnetted, 1 subnetD 10.2.2.0 [90/20514560] via 10.2.0.2 6w0d, serial 0/1

D. 10.0.0.0 /22 is subnetted, 1 subnetD 10.4.0.0 [90/20514560] via 10.2.0.2 6w0d, serial 0/1

E. 10.0.0.0 /28 is subnetted, 1 subnetD 10.4.4.0 [90/20514560] via 10.2.0.2 6w0d, serial 0/1

F. 10.0.0.0 /30 is subnetted, 1 subnetD 10.4.4.4 [90/20514560] via 10.2.0.2 6w0d, serial 0/1



QUESTION 6Refer to the exhibit. HostA cannot ping HostB. Assuming routing is properly configured. what could be thecause of this problem?

A. A - HostA is not on the same subnet as its default gateway.B. B - The address of SwitchA is a subnet address.C. C - The Fa0/0 interface on RouterA is on a subnet that can't be used.D. D - The serial interfaces of the routers are not on the same subnet.E. E - The Fa0/0 interface on Routers is using a broadcast address.



QUESTION 7Refer to the exhibit. The routers are running RIPv2. Which addressing scheme would satisfy the needs of thisnetwork yet waste fewest addresses?

A. Network 1: 1 92.168.10.0/26Network 2: 1 92.168.10.64/26Network 3: 1 92.168.10.128/26Serial link 1: 192.168.20.0/24Serial link 2: 192.168.30.0/24

B. Network 1: 1 92.168.10.0/26Network 2: 1 92.168.10.64/28

Network 3: 1 92.168.10.80/29Serial link 1: 192.168.10.88/30Serial link 2: 192.168.10.96/30

C. Network 1: 1 92.168.10.0/26Network 2: 1 92.168.10.64/27Network 3: 1 92.168.10.96/28Serial link 1: 192.168.10.112/30Serial link 2: 192.168.10.116/30

D. Network 1: 1 92.168.10.0/27Network 2: 1 92.168.10.64/28Network 3: 1 92.168.10.96/29Serial link 1: 192.168.10.112/30Serial link 2: 192.168.10.116/30




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Cisco Realtests 640-802 Exam Bundle · Cisco Realtests 640-802 Exam Bundle Number : 640 ... RIP requires less configuration to ... A network associate is configuring a router for