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 whether you need to read the entire chapter. If you already intend to read the entire chapter, you do not necessarily need to answer these questions now.

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

Table 12-1 outlines the major topics discussed in this chapter and the "Do I Know This Already?" quiz questions that correspond to those topics.

Table 12-1. "Do I Know This Already?" Foundation Topics Section-to-Question Mapping

Foundation Topics Section	Questions Covered in This Section	Score
Rapid STP	18
Multiple STP (MST)	912
Total Score

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. Giving yourself credit for an answer you correctly guess skews your self-assessment results and might give you a false sense of security.

1.	Which one of the following enables the use of RSTP? PVST+ RPVST+ 802.1D CST MST
2.	Upon which standard is RSTP based? 802.1Q 802.1D 802.1w 802.1s
3.	Which of the following is not a port state in RSTP? Listening Learning Discarding Forwarding
4.	When a switch running RSTP receives an 802.1D BPDU, what happens? The BPDU is discarded or dropped. An ICMP message is returned. The switch begins to use 802.1D rules on that port. The switch disables RSTP.
5.	When does an RSTP switch consider a neighbor to be down? After three BPDUs are missed After six BPDUs are missed After the Max Age timer expires After the Forward timer expires
6.	Which process is used during RSTP convergence? BPDU propagation Synchronization Forward timer expiration BPDU acknowledgments
7.	What causes RSTP to view a port as a point-to-point port? Port speed Port media Port duplex Port priority
8.	Which of the following events triggers a topology change with RSTP on a nonedge port? A port comes up or goes down. A port comes up. A port goes down. A port moves to the Forwarding state.
9.	Which of the following is not a characteristic of MST? A reduced number of STP instances Fast STP convergence Eliminated need for CST Interoperability with PVST+
10.	Which of the following standards defines the MST protocol? 802.1Q 802.1D 802.1w 802.1s
11.	How many instances of STP are supported in the Cisco implementation of MST? 1 16 256 4096
12.	What switch command can be used to change from PVST+ to MST? spanning-tree mst enable no spanning-tree pvst+ spanning-tree mode mst spanning-tree mst

You can find the answers to the "Do I Know This Already?" quiz in Appendix A, "Answers to 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," "Foundation Summary," and "Q&A" sections.

• 11 or 12 overall score If you want more review on these topics, skip to the "Foundation Summary" section and then go to the "Q&A" section at the end of the chapter. Otherwise, move to Chapter 13, "Multilayer Switching."