CCBOOTCAMP s Comprehensive ICND2 Study Guide With Sample Questions

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CCBOOTCAMP’s

®

Comprehensive ICND2 Study Guide

With Sample Questions

Interconnecting Cisco Networking Devices

Part 2 (ICND2)

Cisco Exam 640-816

A Unique Study Guide format that compresses important

need-to-know-information into short easy-to-read segments followed with pertinent practice

questions. Each Module is then followed with relevant Sample Exam Questions.

The Answer Key is included but located at the end of the study guide to facilitate

a No Peek study habit.

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CCBOOTCAMP®’s Comprehensive ICND2 Study Guide With Sample Questions First Edition

All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission from the publisher, except for the inclusion of brief quotations in a review.

Printed in the United States of America on December 7, 2007

Warning and Disclaimer

This book is designed to provide information for ICND1, ICND2, and CCNA candidates looking for hands-on pre-study material. Every effort has been made to make this study guide as complete as possible and as accurate as possible, but no warranty is implied.

The information is provided on an “as is” basis. The authors and CCBOOTCAMP® shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the discs or programs that may accompany it.

Feedback Information

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Module 1 – Small Network Implementation

Introducing the Review Lab

Showing the Switch Initial Startup Status

The show interfaces command displays status and statistics information on the network interfaces of the switch. The table shows some fields in the display that are useful for checking on fundamental switch details.

Output Description

FastEthernetO/2 is up

Indicates the status of the interface hardware. In this example, it is functioning correctly. The hardware status is followed by the status of the line protocol, which in this example is also operational and active.

address is

0008.a445.ce82...

Shows the MAC address that identifies the interface hardware. Half-duplex, 10 Mb/s Shows the type mode of connection. Other possibilities include full

duplex, 100 Mb/s.

CRC Shows that there were 0 CRC errors. CRC errors can indicate duplex mismatch or a malfunctioning Ethernet adapter in an attached device.

1. When you use the show interface command to display the status and statistics for the interfaces

configured on a Catalyst switch, which output field indicates the MAC address that identifies the interface hardware?

A. MTU 1500 bytes B. Hardware is … 10BaseT C. Address is 0050.BD73.E2C1 D. 802.1d STP State: Forwarding

Switch status commands are as follows:

show version: Displays the configuration of the system hardware and the software version

information.

show running-config: Displays the current active (running) configuration file of the switch.

This command requires privileged EXEC mode access. The IP address, subnet mask, and default-gateway settings will be displayed here.

show interfaces: Displays statistics and status information of all the interfaces on the switch.

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2. Which show command requires that you have privileged EXEC mode access? A. show ip

B. show version C. show running D. show interfaces

Entering the EXEC Modes

When the correct enable password is entered, the switch or device prompt changes to hostname#, indicating that the user is now at the privileged EXEC level. Entering the ? command at the privileged EXEC level will reveal many more command options than those available at the user EXEC level.

To return to the user EXEC level, enter the disable command at the hostname# prompt.

3. Which Cisco IOS is used to return to the user EXEC mode from the privileged EXEC mode? A. exit> B. quit C. disable> D. userexec Command History Command Description

Ctrl-P or up arrow Recalls last (previous) commands. Ctrl-N or Down Arrow Recalls more recent commands.

Show history Shows command buffer contents.

History size line Sets the buffer size permanently.

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4. Which command returns to more recent commands in the history buffer after recalling commands? A. Ctrl-N

B. Ctrl-P C. show history D. show terminal

Configuring Password Security

The enable password global command restricts access to the privileged EXEC mode. You can assign an encrypted form of the enable password, called the enable secret password, by entering the enable secret command with the desired password at the global configuration mode prompt. If the enable secret password is configured, it is used instead of the enable password, not in addition to it.

5. If both the enable secret and the enable password commands are configured on your router, how do you get to the # prompt?

A. Enter the enable secret command.

B. Enter the enable password command.

C. Enter either the enable secret or the enable password command. D. Enter both the enable secret and the enable password commands.

Configuring Cisco Router Interfaces

You can enable many features on a per-interface basis. Interface configuration mode commands modify the operation of Ethernet, serial, and many other interface types. When you enter the interface command, you must define the interface type number. The number assigned to each interface based on the physical location of the interface hardware in the router and is used to identify each interface. This identification is critical when there are multiple interfaces of the same type in a single router. Examples of an interface type and number are as follows:

Router (config) #interface serial 0 Router (config) #interface fa 0/0

6. Which Cisco IOS command configures serial port in slot 0, port 1 on a modular router? A. serial 0/1 interface

B. interface serial 0 1 C. interface serial 0/1 D. serial 0 1 interface

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7. Which Cisco IOS command should you use to set the clock speed to 64 kbps on a serial interface on a Cisco router? A. clock rate 64 B. clock speed 64 C. clock rate 64000 D. clock speed 64000

Cisco IOS CLI Functions

While Cisco IOS Software is a core technology that extends across many products, its operation details vary depending on the internetworking devices that are involved. To enter commands into the CLI, type or paste the entries within one of the several console

configuration modes. In terminal configuration mode, an incremental compiler is invoked. Each configuration command entered is parsed as soon as you press the Enter key.

8. How do you instruct a Cisco device to parse and execute an entered command? A. Press the Send key

B. Press the Enter key

C. Add a space at end of the command D. Wait 5 seconds after you enter the command

User Exec: Allows access to only a limited number of basic monitoring commands.

9. Which statement best describes what the user EXEC mode commands allow you to configure on a Cisco router?

A. You cannot configure anything; the user mode commands are used to display information. B. The user EXEC mode allows you to perform global configuration tasks that affect the entire router. C. The user EXEC mode commands allow you to enter a secret password so that you can configure

the router.

D. The user EXEC mode commands allow you to configure interfaces, subinterfaces, lines, and routers.

Privileged EXEC: allows access to all device commands, such as those used for

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10. Which access level allows a person to access all router commands and can be password protected to allow only authorized individuals to access the router?

A. user EXEC level B. setup EXEC level C. enable EXEC level D. privileged EXEC level

Configuration Modes of Cisco IOS Software

User EXEC mode: Hostname> Privileged EXEC Mode: Hostname#

Global Configuration Mode: Hostname(config)#

11. Which CLI prompt indicates that you are working in privileged EXEC mode? A. hostname#

B. hostname> C. hostname-exec> D. hostname-config

From the privileged EXEC mode, you can enter global configuration mode using the configure

terminal command. From global configuration mode, you can access specific configuration

modes, which include, but are not limited to, the following:

 Interface: Supports commands that configure operations on a per-interface basis  Subinterface: Supports commands that configure multiple virtual interfaces on a single

physical interface

 Controller: Supports commands that configure controllers

 Line: Supports commands that configure the operation of a terminal line.  Router: Supports commands that configure an IP routing protocol

12. Which configuration mode will you use to configure a particular port on a switch? A. user mode

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Configuration Mode Prompt

Interface RouterX (config-if) #

Subinterface RouterX (config-subif) # Controller RouterX (config-controller) #

Line RouterX (config-line) #

Router RouterX (config-router) #

13. Match each router prompt to its configuration mode. ______ 1. Line ______ 2. Router ______ 3. Interface ______ 4. Controller ______ 5. Subinterface A. Router(config-if)# B. Router(config-line)# C. Router(config-subif)# D. Router(config-router)# E. Router(config-controller)#

Commands that point to or indicate a process or interface that will be configured are called major commands. When entered, major commands cause the CLI to enter a specific

configuration mode. Major commands have no effect unless a subcommand that supplies the configuration entry is immediately entered. For example, the major command interface serial

0 has no effect unless it is followed by a subcommand that tells what is to be done to that

interface.

Notice that entering a major command switches from one configuration mode to another.

14. If you enter a major command on a Cisco router, what happens?

A. The router returns you to user EXEC mode. B. The router returns a list of possible commands. C. The router invokes a global configuration command.

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Help Facilities of the Cisco IOS CLI

At any time during an EXEC session, you can enter a question mark (?) to get help.

15. Which command would you enter in the privileged EXEC mode to list the command options? A. ?

B. init C. help D. login

Word help: Enter the ? command to get word help for list of commands that begin with a

particular character sequence. Enter the character sequence followed immediately by the question mark. Do not include a space before the question mark. The router displays a list of commands that begin with the characters you entered

16. What CLI command should you enter to display a list of commands that begin with the letter “c” on a Catalyst switch? A. c? B. c ? C. help c D. help c*

Command syntax help: Enter the ? command to get command syntax help for completing a

command. Enter a question mark in place of a key word or argument. Include a space before the question mark. The network device then displays a list available command option. “<cr>” represents a carriage return.

17. What CLI command should you enter to display the command syntax help so that you can see how to complete a command that begins with “config”?

A. config? B. config ? C. help config D. help config*

Help Facilities Description

Context-Sensitive Help Provides a list of commands and the arguments associated with a specific command

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Command History Buffer Allows recall of long or complex commands or entries for reentry, review, or correction

18. Match each type of help available with the Cisco IOS CLI to its description ______ 1. context-sensitive help

______ 2. console error messages ______ 3. command history buffer

A. Provides a list of commands and the arguments associated with a specific command. B. Allows recall of long or complex commands or entries for reentry, review, or correction.

C. Identifies problems with router commands incorrectly entered so that you can alter or correct them.

Command Review

Command Description

Ip address address mask Sets the IP address and mask of the device

Ip default-gateway address Sets the default gateway of the switch

19. Which Cisco IOS command correctly configures an IP address and subnet mask on a switch? A. ip address

B. ip address 196.125.243.10 C. 192.125.243.10 ip address

D. ip address 196.125.243.10 255.255.255.0

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Show cdp neighbors Displays the Cisco Discovery Protocol updates

received on each local interface of the device.

Show interfaces Displays information on all of the device interfaces.

Show port-security [interface interface-id] [address]

Displays the administrative and operational status of all secure ports on a switch. Operationally displays specific interface security settings or all secure MAC addresses.

Show running-configuration Displays the active configuration

Show startup-configuration Displays the configuration settings of the router

NVRAM

21. What information does the show running-config command provide on a Cisco router? A. current (running) configuration in RAM

B. system hardware and names of configuration files C. amount of NVRAM used to store the configuration D. version of Cisco IOS software running on the router

Banner motd Configures the Message-of-the-Day banner.

22. Which Cisco IOS command creates a message to be displayed upon router login? A. hostname hostname

B. banner motd message

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Sample Exam Questions

1-1

Refer to the exhibit. The network administrator made the entries that are shown and then saved the configuration. From a console connection, what password or password sequence is required for the administrator to access privileged mode on Router1?

A. cisco B. sanfran C. sanjose

D. either cisco or sanfran E. either cisco or sanjose F. sanjose and sanfran

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1-3

1-4

1-5

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Module 2 – Medium-Sized Switched Network Construction

Implementing VLANs and Trunks

Understanding Trunking with 802.1Q

A trunk is a point-to-point link between one or more Ethernet switch interfaces and another network device such as a router or a switch. Ethernet trunks carry the traffic of multiple VLANs over a single link and allow you to extend the VLAN across an entire network.

1. Which feature is required for multiple VLANs to span multiple switches? A. a trunk to connect the switches

B. a router to connect the switches C. a bridge to connect the switches D. a VLAN configured between the switches

Ethernet trunk interfaces support different trunking modes. You can configure an interface as trunking or nontrunking, or have it negotiate trunking with the neighboring interfaces.

802.1Q Trunking Configuration

The 802.1Q protocol carries traffic of multiple VLANS over a single link on a multi-vendor network.

2. What are two reasons for using 802.1Q? (Choose two.)

A. to allow switches to share a trunk link with non-trunking clients B. to allow clients to see the 802.1Q header

C. to provide inter-VLAN communications over a bridge

D. to load-balance traffic between parallel links using the Spanning Tree Protocol E. to provide trunking between Cisco switches and other vendor switches

VLAN Membership Modes

Dynamic VLAN: Cisco Catalyst switches support dynamic VLANs using a VLAN Management