Operating Cisco IOS Software

Question 1

SSH is a secure method to remotely access the CLI

Answer 1

Secure Shell (SSH)

Question 2

Telnet is an unsecure method of establishing a CLI session.

Answer 2

Telnet

Question 3

Accessing a device CLI through a console connection is also called

Answer 3

out-of-band (OOB)

Question 4

Because these CLI connections consume network bandwidth, they are also called

Answer 4

in-band access

Question 5

Allows a person to execute only a limited number of basic monitoring commands.

Answer 5

User EXEC

Question 6

Allows a person to execute all device commands, for example, all configuration and management commands. This level can be password-protected to allow only authorized users to execute the privileged set of commands.

Answer 6

Privileged EXEC

Question 7

While in privileged EXEC mode, enter the configure terminal command. Use this mode to configure parameters that apply to the entire device.

Answer 7

Global Configuration Mode

Question 8

While in global configuration mode, enter the interface command followed by interface label of the interface you wish to configure. Use this mode to configure parameters for the device interfaces.

Answer 8

Interface Configuration Mode

Question 9

Provides a list of commands or the arguments that are associated with a specific command.

Answer 9

Context-sensitive help

Question 10

Identifies problems with commands that you have entered so that you can alter or correct them.

Answer 10

Error notification message

Question 11

You did not enter enough characters for your device to uniquely recognize the command.

Answer 11

% Ambiguous command

Question 12

You did not enter all keywords or values that are required by this command.

Answer 12

% Incomplete command

Question 13

You entered the command incorrectly. The ^ marks the first element with the error.

Answer 13

% Invalid input detected at ‘^’ marker

Question 14

NVRAM is the memory component in the device hardware that retains stored information (for example, it is non-volatile) even after the device is powered down. The configuration file that is stored in the NVRAM is called the startup-config file.

Answer 14

Non-Volatile Random Access Memory (NVRAM)

Question 15

Once the device has started, the system copies the startup configuration to RAM. The configuration file in RAM is called the running-config file.

Answer 15

random-access memory (RAM)

Question 16

ROM is a form of permanent storage. This type of Memory contains microcode for basic functions to start and maintain the router. ROM is nonvolatile, so it maintains the memory contents even when the power is turned off.

Answer 16

Read Only Memory (ROM)

Question 17

Which is used to bring up the router during initialization

Answer 17

The bootstrap code

Question 18

Which is used to test the basic functionality of the router hardware and determine which components are present

Answer 18

Power-On Self Test (POST) microcode

Question 19

Includes a low-level operating system that is normally used for manufacturing, testing, troubleshooting, and password recovery. In ROM monitor mode, the router has no routing or IP capabilities.

Answer 19

ROM monitor

Question 20

Is similar to a hard drive in that the information that the system stores there is retained even when the device is powered off. Cisco IOS Software is stored in flash memory. Flash memory may also store backup configuration files and additional device-related files.

Answer 20

Flash memory

Question 21

Displays the current running configuration. You can also use filters. For example, you can use the show running-config interface GigabitEthernet0/1 command to display only the interface GigabitEthernet0/1 running configuration.

Answer 21

show running-config

Question 22

Displays the startup configuration stored in NVRAM.

Answer 22

show startup-config

Question 23

Enters the Global Configuration Mode, where you can interactively change the configuration in RAM (the running-config), using console or remote terminal access.

Answer 23

configure terminal

Question 24

Saves the running configuration to startup-config file in NVRAM.

Answer 24

copy startup-config running-config

Question 25

Deletes the saved startup-config file in NVRAM.

Answer 25

erase startup-config