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

Table 3-1 outlines the major topics discussed in this chapter and the "Do I Know This Already?" quiz questions that correspond to those topics.

Table 3-1. "Do I Know This Already?" Foundation Topics Section-to-Question Mapping

Foundation Topics Section

Questions Covered in This Section

Criteria in Designing IP Networks


Private Addresses on the Internet


Connecting to the Outside World with NAT


Understanding IPv6



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.


Which of the following are valid uses for access lists?

  1. Restricting networks sent out in routing updates

  2. Restricting connectivity to remote networks

  3. Preventing users interactive access to the routing table

  4. Restricting large packet sizes from traversing the network


In the hierarchical design suggested by Cisco, at which layer are access lists not recommended?

  1. Core layer

  2. Access layer

  3. Distribution layer

  4. Access lists are recommended at all layers


What is the function of the distribution layer?

  1. Connects the routers to the end systems, allowing the datagrams to be distributed to the destination address

  2. Distributes the datagrams to the rest of the network. It is the pinnacle of the network, connecting the other layers to one another.

  3. Provides the demarcation point between the core and access layers, providing policy-based connectivity and allowing you to do packet manipulation

  4. Provides the connections to other autonomous systems or to the Internet, distributing data to the outside world


What feature is required in a routing protocol to allow it to support prefix routing?

  1. Interoperability with other vendors

  2. The extended prefix or subnet mask is sent in the routing update.

  3. Hierarchical addressing

  4. The protocol must be VLSM compliant.


In order for a network to support summarization, which of the following must be true?

  1. VLSM needs to be configured on the DHCP server.

  2. The addresses to be summarized share the same high order bits.

  3. The physical and logical topology of the network is hierarchical.

  4. The design of the network must conform to the rules laid out in RFC 2011.


In designing the IP addressing of a network, which of the following questions are pertinent to the design process?

  1. How many subnets exist currently in your network?

  2. Is access to the subnets required from other subnets?

  3. Are you running PCSA?

  4. Where are the subnets in relation to the topology map?


What are the private addresses allocated in RFC 1918?

  1. Class A:

  2. Class A:, Class B:, Class C:

  3. Class A:, Class B:, Class C:

  4. Class A:, Class B:, Class C:


What is the purpose of private addressing?

  1. To allow companies to have no communication with the Internet

  2. To allow companies to address the networks within their autonomous system without any constraint on limited IP address space on the Internet

  3. To configure encryption on individual end systems

  4. To prevent spam attacks


Is it necessary to prevent the private addresses from entering the Internet?

  1. Yes, if the private addresses appear on the Internet, the packet with the address should be dropped.

  2. Yes, the private address would invite unsolicited mail.

  3. No, the private address is unique to the Internet; it simply indicates that there is a firewall in place.

  4. No, the destination address will convert the source address to a unique address.


Which NAT feature would you implement if you wished to create a one-to-one translation?

  1. Dynamic Source Address Translation

  2. Port Address Translation

  3. Static Addressing

  4. Destination address rotary translation


Which of the following most closely defines a feature of NAT?

  1. To translate an address on one network into a different address for another network

  2. To encrypt the source address to prevent spam attacks

  3. To translate private addresses for use in a WINS server

  4. To store prefix routing information on the Internet


Which of the following is a feature of NAT that is supported by Cisco?

  1. Encryption

  2. Destination Allocation Resource Translation

  3. Port Allocation Translation

  4. Port Address Translation


Which of the following is a valid IPv6 address?

  1. 4021::240E::0AC0:3428:121C

  2. 4021:240E::0AC0:3428::

  3. 4021::0000::240E::0000::0000::0AC0::3428::121C

  4. 4021:0:240E::0AC0:3428:121C


How long is an IPv6 address?

  1. 16 hexadecimal numbers

  2. 32 decimal numbers

  3. 128 bits

  4. 32 bits


The multicast address range for IPv6 is which of the following?

  1. F000::/8 FF0F::/8

  2. FF00::/8 FFFF::/8

  3. F000::/8 FFFF::/8

  4. FF00::/8 FF0F::/8

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 :

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

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

  • 13 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 and the "Scenarios" at the end of the chapter. Otherwise, move to the next chapter.

CCNP BSCI Exam Certification Guide
CCNP BSCI Exam Certification Guide (CCNP Self-Study, 642-801) (3rd Edition)
ISBN: 1587200856
EAN: 2147483647
Year: 2002
Pages: 194
Authors: Clare Gough © 2008-2017.
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