NETESS 2.0 MODULE 18 QUIZ - Cisco IOS CLI Navigation

Which IOS mode allows access to all commands and features?

• global configuration mode

• interface subconfiguration mode

• line console subconfiguration mode

• privileged EXEC mode

• user EXEC mode

Answer explanation

1. The privileged EXEC mode allows access to all commands. Higher level commands like global configuration mode and subconfiguration modes can only be reached from the privileged EXEC mode.

Which IOS mode are you in if the Switch(config)# prompt is displayed?

• global configuration mode

• interface subconfiguration mode

• line console subconfiguration mode

• privileged EXEC mode

• user EXEC mode

Answer explanation

1. Global configuration mode is identified by the (config)# prompt.

Which IOS mode are you in if the Switch> prompt is displayed?

• global configuration mode

• interface subconfiguration mode

• line console subconfiguration mode

• privileged EXEC mode

• user EXEC mode

Answer explanation

1. The > prompt after the device name identifies user EXEC mode.

Which two commands would return you to the privileged EXEC prompt regardless of the configuration mode you are in? (Choose two.)

• CTRL+Z

• disable

• enable

• end

• exit

Answer explanation

1. o return from any prompt, all the way down to privileged EXEC mode, type the end command or by pressing the CTRL+Z keys simultaneously on the keyboard.

Which Cisco IOS mode displays a prompt of Router#?

• global configuration mode

• user EXEC mode

• privileged EXEC mode

• setup mode

Answer explanation

Topic 18.1.0 - Cisco IOS uses different command modes for operational needs. The privileged EXEC mode is identified by a prompt that ends with the # symbol after the device name. The user EXEC mode is identified by a prompt that ends with the > symbol after the device name. The global configuration mode is identified by a prompt that ends with (config)# after the device name.

While troubleshooting a network problem, a network administrator issues the show version command on a router. What information can be found by using this command?

• the bandwidth, encapsulation, and I/O statistics on the interfaces

• differences between the backup configuration and the current running configuration

• the version of the routing protocol that is running on the router

• the amount of NVRAM, DRAM, and flash memory installed on the router

Answer explanation

Topic 18.3.0 - The show version command displays much information about the device, including the amount of memory (flash, NVRAM, and DRAM) that is installed on the device.

What is the difference between the terms keyword and argument in the IOS command structure?

• A keyword always appears directly after a command. An argument does not.

• A keyword is entered with a predefined length. An argument can be any length.

• A keyword is required to complete a command. An argument is not.

• A keyword is a specific parameter. An argument is not a predefined variable.

Answer explanation

Topic 18.2.0 - Keywords are specific parameters that are defined in IOS. Arguments are not predefined; they are the variables defined by the user when completing a command. Although most keywords appear directly after commands, they can appear in other locations, depending on a command structure. A keyword can be entered in its whole length or in a shortened format.

 Which command or key combination allows a user to return to the previous level in the command hierarchy?

• end

• exit

• Ctrl-Z

• Ctrl-C

Answer explanation

Topic 18.1.0 - End and CTRL-Z return the user to the privileged EXEC mode. Ctrl-C ends a command in process. The exit command returns the user to the previous level.

An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?

• to allow the user to complete the command

• to restart the ping process

• to exit to a different configuration mode

• to interrupt the ping process

Answer explanation

Topic 18.2.0 - To interrupt an IOS process such as ping or traceroute, a user enters the Ctrl-Shift-6 key combination. Tab completes the remainder of parameters or arguments within a command. To exit from configuration mode to privileged mode use the Ctrl-Z keystroke. CTRL-R will redisplay the line just typed, thus making it easier for the user to press Enter and reissue the ping command.

Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?

• The administrator is already in global configuration mode.

• The administrator must first enter privileged EXEC mode before issuing the command.

• The administrator must connect via the console port to access global configuration mode.

• The entire command, configure terminal, must be used.

Answer explanation

Topic 18.1.0 - In order to enter global configuration mode, the command configure terminal, or a shortened version such as config t, must be entered from privileged EXEC mode. In this scenario the administrator is in user EXEC mode, as indicated by the > symbol after the hostname. The administrator would need to use the enable command to move into privileged EXEC mode before entering the configure terminal command.