Chapter 7

True/False

Indicate whether the statement is true or false.

____ 1. Peer-to-peer networks pass packets between multiple networks.

____ 2. NetBEUI cannot scale into large internetworks because it cannot hold Network layer information in its

network header.

____ 3. IPX/SPX can be routed across the Internet.

____ 4. Routers use metrics to determine which routes are better than other routes.

____ 5. For the RIP (version 1) routing protocol, hop count is the sole metric used to determine the relative

desirability of a particular path.

Multiple Choice

Identify the choice that best completes the statement or answers the question.

____ 6. ____ protocols have packet headers that can contain Network layer addresses.

a. Routed c. NetBEUI

b. Nonrouted d. NetBIOS

____ 7. ____ is a proprietary protocol suite developed by Novell.

a. NetBIOS c. IPX/SPX

b. NetBEUI d. TCP/IP

____ 8. An autonomous system (AS) uses ____ as routing protocols.

a. Exterior Gateway Protocols c. Limit Gateway Protocols

b. Border Gateway Protocols d. Interior Gateway Protocols

____ 9. ____ routing protocols broadcast their entire routing table to each neighbor router at predetermined intervals.

a. Link-state c. Distance-state

b. Distance-vector d. Link-vector

____ 10. ____ are often referred to as count-to-infinity problems because loops, without preventive measures, will

cause packets to bounce around the internetwork infinitely.

a. Hop loops c. Routing loops

b. Routing hops d. Hop counts

____ 11. ____ controls what information a router will send out through a particular interface.

a. Defining a maximum c. Defining a minimum

b. Split horizon d. Split maximum

____ 12. ____, which are the packets used to send out LSAs, allow every router in the internetwork to share a common

view of the topology of the internetwork.

a. SPFs c. EGPs

b. OSPFs d. LSPs

____ 13. ____ is a distance-vector routing protocol that broadcasts entire routing tables to neighbors every 30 seconds,

out of every interface.

a. RIP c. BGP

b. OSPF d. EIGRP

____ 14. The Cisco ____ command turns on RIP routing for a network.

a. rip c. routing rip

b. network d. rip ip on

____ 15. You use the ____ command to display the routing table.

a. show ip route c. show rip

b. show route d. rip table

____ 16. The ____ is the time at which a route will be totally removed from the routing table if no updates are

received.

a. rip interval c. hop count

b. administrative distance d. flush interval

____ 17. The ____ command displays real-time rip updates being sent and received and places very high processing

demands on your router, which could affect network performance.

a. show ip rip c. debug ip rip

b. show ip protocol d. debug ip protocol

____ 18. The ____ command allows you to set the maximum hop count for IGRP.

a. metric maximum-hops c. metric hops

b. igrp maximum-hops d. maximum-hops

____ 19. Routers with only one route out are known as ____.

a. static routers c. stub routers

b. hub routers d. start routers

____ 20. Networks with one route to the Internet are called ____.

a. hub networks c. start networks

b. static networks d. stub networks

____ 21. Static routes are configured by a network administrator using the ____ command.

a. static route c. static ip

b. ip route d. stub route

____ 22. ____ are very powerful, as they allow administrators complete control over path selection.

a. RIP routes c. Static routes

b. Dynamic routes d. Stub routes

____ 23. The ____ command allows you to configure an administrative distance.

a. ip distance c. adm distance

b. ip route d. adm route

____ 24. A ____ route is a type of static route that the administrator configures.

a. stub c. breakfall

b. hub d. default

____ 25. When IP routing is enabled, you can use the ____ command or the ip route 0.0.0.0 0.0.0.0

command to configure a default route.

a. ip default-network c. ip network default

b. ip default d. ip default 0.0.0.0

____ 26. Default routes are sometimes called ____ routes.

a. fallback c. network

b. break d. quad zero

Completion

Complete each statement.

27. Early networks were sometimes configured as ____________________ networks, in which computers

communicate with and provide services to their “peers.”

28. ____________________ are protocols used by routers to make path determination choices and to share those

choices with other routers.

29. A(n) _________________________ is a group of routers under the control of a single administration.

30. ____________________ is a state where all routers on the internetwork share a common view of the

internetwork routes.

31. Routers configured with a link-state routing protocol use ______________________________ to inform

neighbor routers on the internetwork.

Matching

Match each item with a statement below:

a. NetBEUI f. Hold-down timer

b. Routed protocols g. Link-state packets

c. Hop count h. RIP

d. Metric i. Administrative distance

e. BGP

____ 32. a common technique used to stop routing loops

____ 33. the most commonly used distance-vector protocol

____ 34. developed to support networks consisting of multiple networks or subnetworks

____ 35. the number of routers a packet must pass through to reach a particular network

____ 36. value used to determine the reliability of the information regarding a particular route

____ 37. packets used to send out LSAs

____ 38. value used to define the suitability of a particular route

____ 39. an example of an EGP

____ 40. the most common nonroutable protocol

Short Answer

41. Briefly describe NetBEUI.

42. Briefly describe Enhanced Interior Gateway Routing Protocol (EIGRP).

43. How can you limit count-to-infinity problems by defining a maximum?

44. What are some of the drawbacks of using link-state routing protocols?

45. What are some of the attributes of RIP?

46. What is administrative distance?

47. Briefly describe IGRP.

48. What are the metrics that can be configured for IGRP?

49. How can you change a route administrative distance?

50. How can you configure a default route?