Chapter 10 - check your understanding

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What will be the response from the router after the command, "router(config)# hostname portsmouth" is entered?

portsmouth(config)# The command hostname portsmouth is used to change the current router name to portsmouth.

Which CLI mode allows users to access all device commands, such as those used for configuration, management, and troubleshooting?

privileged EXEC mode The command Router#configure terminal allows a user to enter the privileged mode from where the configuration,management and troubleshooting commands can be accessed.

What is the purpose of the banner motd command?

It provides a way to make announcements to those who log in to a router. The banner motd command is used to display a message when a user attempts to log into the router.

An administrator is configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?

The VTY lines are the Virtual Terminal lines of the router, used solely to control inbound Telnet connections while console 0 is the physical console port on the switch/router you plug into. The line vty command is used to remote configure access into the switch/router via telnet or ssh.

Which statement regarding the service password-encryption command is true?

The command service password-encryption is used to encrypt all the clear text passwords in the running-configuration file.

A router boots and enters setup mode. What is the reason for this?

The configuration file is missing from NVRAM. If a router cannot locate the startup-config file in NVRAM it will enter setup mode to allow the configuration to be entered from the console device.

What is the purpose of the startup configuration file on a Cisco router?

The startup configuration file is stored in NVRAM and contains the commands needed to initially configure a router. It also creates the running configuration file that is stored in in RAM.

A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?

any line configuration mode The command login is used to allow access to a router or switch through aux lines, console lines, and Telnet lines.

Company policy requires using the most secure method to safeguard access to the privileged exec and configuration mode on the routers. The privileged exec password is trustknow1. Which of the following router commands achieves the goal of providing the highest level of security?

enable secret trustknow1

Which command is used to encrypt all passwords in a router configuration file?

service password-encryption The command service password-encryption is used to encrypt and secure plain-text passwords configured on a router.

Which command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status?

show ip interface brief The show ip interface brief command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status.

Which characteristic describes the default gateway of a host computer?

the logic address of the router interface on the same network as the host computer. The default gateway is the IP address of an interface on the router on the same network as the sending host.

What is stored in the NVRAM of a Cisco router?

the startup configuration The Cisco IOS is stored in flash.The running configuration file is stored in RAM.The bootup instructions are stored in ROM.The startup configuration file is stored in NVRAM.


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