Do I Know This Already Chapter 7

What type of switch memory is used to store the configuration used by the switch when it is up and working? a. RAM b. ROM c. Flash d. NVRAM e. Bubble

A (RAM) . Switches (and routers) keep the currently used configuration in RAM, using NVRAM to store the configuration file that is loaded when the switch (or router) next loads the IOS.

Which two characters are allowed as part of the hostname of a Cisco device?

dash *TRUE* numbers *TRUE*

Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords.

-Privileged EXEC mode -VTY interface -Console interface

A network administrator is planning an IOS upgrade on several of the head office routers and switches. Which three questions must be answered before continuing with the IOS selection and upgrade? (Choose three.)

1- What models of routers and switches require upgrades? 2- Do the routers and switches have enough RAM and flash memory for the proposed IOS versions? 3- What features are required for the devices?

Which two functions are provided to users by the context-sensitive help feature of the Cisco IOS CLI? (Choose two.)

1- displaying a list of all available commands within the current mode 2- determining which option, keyword, or argument is available for the entered command

Which two features are characteristics of flash memory?

1-Flash provides nonvolatile storage. 2-The contents of flash may be overwritten.

In what modes can you execute the command show mac address-table? (Choose two answers.) a. User mode b. Enable mode c. Global configuration mode d. Interface configuration mode

A (User mode) and B (Enable mode) . The command in the question is an EXEC command that happens to require only user mode access. As an EXEC command, you cannot use the command in configuration mode, unless you preface the command with "do" (for example, do show mac address-table). As such, you can use this command in both user mode and enable mode.

What is a result of using the service password-encryption command on a Cisco network device?

All passwords in the configuration are not shown in clear text when viewing the configuration.

In which of the following modes of the CLI could you issue the command reload to reboot the switch? a. User mode b. Enable mode c. Global configuration mode d. Interface configuration mode

B (Enable mode) . The command referenced in the question, the reload command, is an EXEC command that happens to require privileged mode, also known as enable mode. As an EXEC command, you cannot use the command in configuration mode, unless you preface the command with do (for example, do reload). This command is not available in user mode.

Which of the following is a difference between Telnet and SSH as supported by a Cisco switch? a. SSH encrypts the passwords used at login, but not other traffic; Telnet encrypts nothing. b. SSH encrypts all data exchange, including login passwords; Telnet encrypts nothing. c. Telnet is used from Microsoft operating systems, and SSH is used from UNIX and Linux operating systems. d. Telnet encrypts only password exchanges; SSH encrypts all data exchanges.

B (SSH encrypts all data exchange, including login passwords; Telnet encrypts nothing.) . SSH provides a secure remote login option, encrypting all data flows, including password exchanges. Telnet sends all data (including passwords) as clear text.

A switch user is currently in console line configuration mode. Which of the following would place the user in enable mode? (Choose two answers.) a. Using the exit command once b. Using the end command once c. Pressing the Ctrl-Z key sequence once d. Using the quit command

B (Using the end command once) and C (Pressing the Ctrl-Z key sequence once) . The exit command moves the user one config mode backward, toward global configuration mode, or if already in global configuration mode, it moves the user back to enable mode. From console mode, it moves the user back to global configuration mode. The end command and the Ctrl-Z key sequence both move the user back to enable mode regardless of the current configuration submode.

Why is it important to configure a hostname on a device?

to identify the device during remote access (SSH or telnet)

What criterion must be followed in the design of an IPv4 addressing scheme for end devices?

Each IP address must be unique within the local network.

A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?

Exit enable mode and press Enter. Exit privileged EXEC mode and press Enter. *TRUE*

What command copies the configuration from RAM into NVRAM? a. copy running-config tftp b. copy tftp running-config c. copy running-config start-up-config d. copy start-up-config running-config e. copy startup-config running-config f. copy running-config startup-config

F (copy running-config startup-config ) . The startup config file is in NVRAM, and the running config file is in RAM.

While trying to solve a network issue, a technician made multiple changes to the current router configuration file. The changes did not solve the problem and were not saved. What action can the technician take to discard the changes and work with the file in NVRAM?

Issue the reload command without saving the running configuration.

Which statement is true about the running configuration file in a Cisco IOS device?

It affects the operation of the device immediately when modified.

A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?

SSH

Refer to the exhibit. A switch was configured as shown. A ping to the default gateway was issued, but the ping was not successful. Other switches in the same network can ping this gateway. What is a possible reason for this?

The no shutdown command was not issued for VLAN 1.

Which procedure is used to access a Cisco 2960 switch when performing an initial configuration in a secure environment?

Use the console port to locally access the switch from a serial or USB interface of the PC.

What is a user trying to determine when issuing a ping 10.1.1.1 command on a PC?

if there is connectivity with the destination device

What command can be used on a Windows PC to see the IP configuration of that computer?

ipconfig

Which two characters are allowed as part of the hostname of a Cisco device?

numbers underline

Which interface allows remote management of a Layer 2 switch?

the switch virtual interface

Why would a Layer 2 switch need an IP address?

to enable the switch to be managed remotely

A router has a valid operating system and a configuration stored in NVRAM. When the router boots up, which mode will display?

user EXEC mode