Name _______________________________________________________ Date ________________

Name _______________________________________________________ Date ________________

Chapter 6Student Version

Chapter 6 Objectives:

Explain how network layer protocols and services support communications across data networks. Explain how routers enable end-to-end connectivity in a small to medium-sized business network. Determine the appropriate device to route traffic in a small to medium-sized business network. Configure a router with basic configurations.

Required Materials:

Reading Organizer

Packet Tracer Activities:6.3.1.10 Packet Tracer - Exploring Internetworking Devices6.4.1.2 Packet Tracer - Configure Initial Router Settings6.4.3.3 Packet Tracer - Connect a Router to a LAN6.4.3.4 Packet Tracer - Troubleshooting Default Gateway Issues6.5.1.2 Packet Tracer Skills Integration ChallengeLabs:6.0.1.2 Class Activity - The road less traveled... Instructions 6.2.2.8 Lab - Viewing Host Routing Tables 6.3.1.9 Lab - Exploring Router Physical Characteristics 6.4.3.5 Lab - Building a Switch and Router Network 6.5.1.1 Class Activity - Can you read this map

Chapter Test

Name__________________________________________________________ Date ________________

Chapter 6Reading OrganizerStudent Version

Note: the Reading Organizer has weighted scoring. Any question with the word explain or define in it is expected to have a longer answer and is worth two points each.

After completion of this chapter, you should be able to:

Explain how network layer protocols and services support communications across data networks. Explain how routers enable end-to-end connectivity in a small to medium-sized business network. Determine the appropriate device to route traffic in a small to medium-sized business network. Configure a router with basic configurations.

6.1 Network Layer Protocols

1. The network layer uses four basic processes. These are:

a.

b.

c.

d.

2. There are several network layer protocols in existence; however, only the following two are commonly implemented. These are:

a.

b.

3. List and explain the basic characteristics of IP.

a. ________________________________

b. ________________________________

c. ________________________________

4. There is one major characteristic of the media that the network layer considers. This is:

5. What is fragmenting the packet or fragmentation?

7. An IPv4 packet has two parts. These are:

a.

b. 8. The fields used to identify and validate a packet, or reorder a fragmented packet include:

a.

b.

c.

9. Why would a router have to fragment a packet?

11. List and explain the three major issues IPv4 has.

a. ________________________________

b. ________________________________

c. ________________________________

12. List four improvements that IPv6 provides.

a.

b.

c.

d.

13. How many addresses does IPv6 provide?

14. The IPv6 simplified header offers several advantages over IPv4. These include:

a.

b.

c.

d.

15. The fields in the IPv6 header include:

a.

b.

c.

d.

e.

f.

g.

h.

6.2 Routing

17. Another role of the network layer is to direct packets between hosts. A host can send a packet to:

a. b.

c.

18. The router connected to the local network segment is referred to as the _____________________________.

19. What is the purpose of a default gateway?

20. Explain what a routing table is.

21. The routing table of a local host typically contains what information?

a.

b.

c. 22. The default gateway is only used when a host must forward packets to a remote network. When is a default gateway not required, or needed to be configured?

23. What commands on a Windows host can be used to display the host routing table?

a.

b.

24. Identify the five different destination address sections shown in the netstat r output.

_______________________

_______________________

________________________

________________________

________________________

25. List and explain what the routing table of a router stores information about.

a. _______________________________________

b. _______________________________________

26. What does a local host require to send packets to a remote destination?

27. What command is used on a Cisco IOS router to display the routing table information?

30. Based on the routing table entry shown what is the.

D200.20.2.0/24 [90/2170112] via10.250.1.1,00:15:35, Serial0/0/1

a. Route Source (which protocol)

b. Destination Network

c. Administrative Distance

d. Metric

e. Next-hop

f. Route timestamp

g. Outgoing interface 31. Which metric has the highest priority; 2170112 or 1?

32. If a router receives a packet to a destination network that is not in the routing table and no default gateway is available, what happens to the packet?

6.3 Routers

34. All router models are essentially computers. Just like computers, tablets, and smart devices, routers also require:

a.

b.

c.

d. 35. A router also has special memory that includes:

36. A router has access to four types of memory. Explain each.

a. RAM

Cisco IOS

Running configuration file

IP routing table

ARP cache

Packet buffer

DRAM

b. ROM

Bootup instructions

Basic diagnostic software

Limited IOS

c. NVRAM

d. Flash memory

39. The connections on a Cisco router can be grouped into two categories. List and explain each.

a. ___________________________________

b. ___________________________________

40. Similar to a Cisco switch, there are several ways to access the CLI environment on a Cisco router. List and explain the most common methods.

a. ___________________________________

b. ___________________________________

c. ___________________________________

41. Router interfaces can be grouped into two categories. List and explain both.

a. ___________________________________

b. ___________________________________

43. Where is the Cisco IOS stored?

44. During boot up the Cisco IOS is copied into?

45. Which two files are loaded when a router is booted?

a.

b.

46. There are three major phases to the bootup process. These are:

a.

b.

c.

47. What command can be used to verify and troubleshoot some of the basic hardware and software components of the router?

48. The output from the show version command includes:

a.

b.

c.

d.

e.

f.

49. The configuration register has several uses, such as:

50. The factory default setting for the configuration register is 0x2102. What does this value mean?

51. List the four steps to the router boot process in correct order.

a.

b.

c.

d.

6.4 Configuring a Cisco Router

52. What are the recommended steps that should be completed when configuring initial settings on a router?

1.

2.

a.

b.

c.

d.

3.

4.

5.

53. What steps are required to activate a router interface?

a.

b.

54. There are several commands that can be used to verify interface configuration. Which is the most useful of these is the commands?

55. What are three other commands that can be used to verify interface configuration?

a.

b.

c.

56. For an end device to communicate over the network, it must be configured with the correct IP address information, including the default gateway address. When is the default gateway used?

57. Where is the default gateway generally located?

58. What is the command used to configure the default gateway 10.250.1.1 on a switch?

S1(config)#

59. A common misconception is that the switch uses its configured default gateway address to determine where to forward packets originating from hosts connected to the switch and destined for hosts on a remote network. What does the switch use its default gateway for?

4Cisco Semester 1 Introduction to Networks 5.0Mark RawlingsChapter 6 Saint Paul College