Do I Know This Already? Quiz

   

"Do I Know This Already?" Quiz

The purpose of the "Do I Know This Already?" quiz is to help you decide what parts of this chapter to use. If you already intend to read the entire chapter, you do not necessarily need to answer these questions now.

The 18-question quiz, derived from the major sections in "Foundation Topics" portion of the chapter, helps you to determine how to spend your limited study time.

Table 4-1 outlines the major topics discussed in this chapter and the "Do I Know This Already?" quiz questions that correspond to those topics.

Table 4-1. "Do I Know This Already?" Foundation Topics Section-to-Question Mapping

Foundation Topics Section	Questions Covered in This Section
Distance Vector Routing Protocols	13
RIPv1 and RIPv2	45
IGRP and EIGRP	69
Choosing Between Routing Protocols Using Administrative Distance	1012
Convergence	1315
Interior and Exterior Gateway Protocols	1618

CAUTION

The goal of self-assessment is to gauge your mastery of the topics in this chapter. If you do not know the answer to a question or are only partially sure of the answer, you should mark this question wrong for purposes of the self-assessment. Giving yourself credit for an answer you correctly guess skews your self-assessment results and might provide you with a false sense of security.

1:	Which of the following techniques are used by a distance vector routing protocol? Count to infinity Poison reverse Split horizon Feasible successor
2:	Which algorithm is used by distance vector routing protocols? DUAL Bellman Ford Dijkstra Feasible successor
3:	Which of the following are distance vector routing protocols? EIGRP,BGP-4 IGRP, OSPF, IS-IS RIPv1, RIPv2, IGRP IS-IS, RIPv2
4:	Name the interior routing protocols on a Cisco router that sends a routing update every 30 seconds by default. IGRP RIPv1 RIPv1, RIPv2 BGP-4
5:	Which of the following are enhancements in the creation of RIP version 2? Using the DUAL algorithm Maintaining a topology map Multicast addressing Sending the mask with the update
6:	How often does IGRP send a routing update (by default)? 30 seconds 90 seconds It only sends incremental updates 60 seconds
7:	When a distance vector routing protocol process suspects that a route in its routing table is no longer valid, it will set the metric for the suspect route so high that the route is rendered unusable. This high metric is propagated in routing updates and sent out immediately. What is this process called? Count to infinity Triggered updates Split horizon Feasible successor
8:	What is the algorithm used by EIGRP? Bellman Ford Dijkstra DUAL Administrative distance
9:	If there is no path in the routing table, what action will EIGRP take? The process will poll the neighbors. An ICMP redirect is sent to the router. The route is dropped and a poison reverse is sent. The route is given a metric of 255.
10:	Which of the following has the best administrative distance? IGRP RIPv1 EIGRP RIPv2
11:	Which of the following criteria would select a route as the preferred path to be added to the routing table when there are multiple IP routing protocols running on the router? The route is the only available path. The route has the one interface configured for IP. The route has the lowest administrative distance. The route has the lowest metric.
12:	Which of the following statements are true about administrative distance? Administrative distance is the mechanism used by the routing process to select a path offered by two or more different routing protocols. Administrative distance is a value given to each IP routing protocol. Administrative distance can be manually configured. The path that is chosen will be the one offered by the routing protocol with the lowest administrative distance.
13:	When either RIPv1 or IGRP receive a flash update, what action do they take regarding the affected route? Place the affected route in holddown Delete the affected route Continue to use the route until they hear that it is unavailable If a feasible successor is available, use it and delete the suspect route
14:	In EIGRP, where does the routing process look for a feasible successor? Neighbor table Routing table Link state database Topology table
15:	If EIGRP finds a feasible successor, how long will it take for the network to converge? Within three routing updates Almost instantly After the holddown timer has expired After a routing update confirms the feasible successor is valid
16:	Which of the following are examples of interior routing protocols? BGP-4 IS-IS OSPF RIPv1
17:	Which of the following are examples of exterior routing protocols? BGP-4 IS-IS OSPF RIPv1
18:	Autonomous system numbers are provided by which organization? ISO IANA OSI IEEE

The answers to the "Do I Know This Already?" quiz are found in Appendix A, "Chapter 'Do I Know This Already?' Quizzes and Q&A Sections." The suggested choices for your next step are as follows :

• 10 or less overall score Read the entire chapter. This includes the "Foundation Topics" and "Foundation Summary" sections, and the "Q&A" section at the end of the chapter.

• 1115 overall score Begin with the "Foundation Summary" section and then go to the "Q&A" section at the end of the chapter. If you have trouble with these questions, read the appropriate sections in "Foundation Topics."

• 16 or more overall score If you want more review on these topics, skip to the "Foundation Summary" section and then go to the "Q&A" section. Otherwise, move to the next chapter.