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 14-question 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 2-1 outlines the major topics discussed in this chapter and the "Do I Know This Already?" quiz questions that correspond to those topics.

Table 2-1. "Do I Know This Already?" Foundation Topics Section-to-Question Mapping

Foundation Topics Section	Questions Covered in This Section	Score
Modular Network Design	112
Evaluating an Existing Network	1314
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 provide you with a false sense of security.

You can find the answers to the 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:

• 8 or less overall scoreRead the entire chapter. This includes the "Foundation Topics," "Foundation Summary," and "Q&A" sections.

• 910 overall scoreBegin with the "Foundation Summary" section and then follow up with the "Q&A" section at the end of the chapter.

• 12 or more overall scoreIf 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 on to Chapter 3, "Switch Operation."

1.	What is the purpose of breaking a campus network into a hierarchical design? To facilitate documentation To follow political or organizational policies To make the network predictable and scalable To make the network more redundant and secure
2.	Which of the following are building blocks or modules used to build a scalable campus network? (Check all that apply.) Access block Distribution block Core block Server farm block Switch block
3.	Which one or more of the following are the components of a typical switch block? Access-layer switches Distribution-layer switches Core-layer switches E-commerce servers Service provider switches
4.	What are two types of core, or backbone, designs? Collapsed core Loop-free core Dual core Layered core
5.	In a properly designed hierarchical network, a broadcast from one PC is confined to what? One access-layer switch port One access-layer switch One switch block The entire campus network
6.	What is the maximum number of access-layer switches that can connect into a single distribution-layer switch? 1 2 Limited only by the number of ports on the access-layer switch Limited only by the number of ports on the distribution-layer switch Unlimited
7.	A switch block should be sized according to what? The number of access-layer users A maximum of 250 access-layer users A study of the traffic patterns and flows The amount of rack space available The number of servers accessed by users
8.	What evidence can be seen when a switch block is too large? (Choose all that apply.) IP address space is exhausted. You run out of access-layer switch ports. Broadcast traffic becomes excessive. Traffic is throttled at the distribution-layer switches. Network congestion occurs.
9.	How many distribution switches should be built into each switch block? 1 2 4 8
10.	What are the most important aspects to consider when designing the core layer in a large network? (Choose all that apply.) Low cost Switches that can efficiently forward traffic, even when every uplink is at 100 percent capacity High port density of high-speed ports A low number of Layer 3 routing peers
11.	Which services typically are located at the enterprise edge block? (Choose all that apply.) Network management Intranet server farms VPN and remote access E-commerce servers End users
12.	In a server farm block, where should redundancy be provided? (Choose all that apply.) Dual connections from each distribution switch to the core. Dual connections from each access switch to the distribution switches. Dual connections from each server to the access switches. No redundancy is necessary.
13.	Which of the following protocols can be used as a tool to discover a network topology? RIP CDP STP ICMP
14.	Which one of the following tasks is not an appropriate strategy for migrating an existing network into the Enterprise Composite Model? Identify groups of end users as switch blocks Group common resources into switch blocks Identify distribution switches to connect the switch blocks Add redundancy between the hierarchical layers