QA

     

Q&A

As mentioned in the introduction, "All About the CCNP, CCDP, and CCIP Certifications," you have two choices for review questions. The questions that follow next give you a bigger challenge than the exam itself by using an open -ended question format. By reviewing now with this more difficult question format, you can exercise your memory better and prove your conceptual and factual knowledge of this chapter. The answers to these questions are found in Appendix A.

For more practice with examlike question formats, including questions using a router simulator and multichoice questions, use the exam engine on the CD.

1:	What information is held in the topology table?
2:	What command is used to determine manually which router on a LAN will become the DR?
3:	How many subnets are required in an OSPF configuration over a point-to-point network that has multiple connections?
4:	State the different types of packets used to build a routing table for the first time.
5:	In creating an adjacency , what is the exstart state?
6:	What is the database descriptor and when is it used?
7:	Explain the difference between an LSR and an LSA.
8:	What packet is used to maintain the neighbor table?
9:	What is the metric used by OSPF standards? Is this the same metric that Cisco uses?
10:	Explain the meaning of the letters BDR.
11:	What is used to elect the DR when the election is dynamic?
12:	When a new router joins the OSPF network, will it learn about the rest of the OSPF network through the flooding method or the exchange method?
13:	If an LSA is received that is present in the OSPF database, and the receiving LSA is older than the one currently held by the router, what action is taken?
14:	A router has made a neighbor relationship with another router and exchanged DDP. Having compared the routing information from its neighbor, the router realizes that its topology database is incomplete. Name the different stages or states that a router goes through to update its topology database.
15:	How many equal-cost paths will Cisco enter into the routing table?
16:	An LSA is received by a router, and when checked against the topology database, it finds the LSA is new or a change in the status of an existing route that has been received. What action will the receiving router take?
17:	Which NBMA configuration options are Cisco-specific?
18:	What is the difference between a point-to-point interface and a point-to-multipoint interface?
19:	What is the default network type for serial interfaces with HDLC encapsulation, and how often is the hello packet sent?
20:	On a multiaccess link, what role does the BDR play?