CCNA 1 Chapter 2 V5.0 Answers

Posted in CCNA 1: Introduction to Networks (V5.0)

1. 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?

Reboot the device.

Enter CTRL-Z at the privileged mode prompt.

Exit global configuration mode.

Power cycle the device.

Exit privileged EXEC mode and press Enter.

2. Why would a Layer 2 switch need an IP address?

to enable the switch to send broadcast frames to attached PCs

to enable the switch to function as a default gateway

to enable the switch to be managed remotely

to enable the switch to receive frames from attached PCs

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

ping

ipconfig

show interfaces

show ip interface brief

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

Each IP address must match the address that is assigned to the host by DNS.

Each IP address must be unique within the local network.

Each IP address needs to be compatible with the MAC address.

Each local host should be assigned an IP address with a unique network component.

The shortcuts with their functions are as follows

The shortcuts with their functions are as follows:

- Tab - Completes the remainder of a partially typed command or keyword

- Ctrl-R - Redisplays, on a new line, the command currently being typed

- Ctrl-Z - Exits configuration mode and returns to the EXEC

- Up Arrow - Allows user to scroll backward through former commands

- Ctrl-C - cancels any command currently being entered and returns directly to privileged EXEC mode

- Ctrl-Shift-6 - Allows the user to interrupt an IOS process such as ping or traceroute

6. 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)

Are the devices on the same LAN?

Do the devices have enough NVRAM to store the IOS image?

What models of routers and switches require upgrades?

What ports are installed on the routers and switches?

Do the routers and switches have enough RAM and flash memory for the proposed IOS versions?

What features are required for the devices?

7. 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.

Delete the vlan.dat file and reboot the device.

Close and reopen the terminal emulation software.

Issue the copy startup-config running-config command.

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

providing an error message when a wrong command is submitted

displaying a list of all available commands within the current mode

allowing the user to complete the remainder of an abbreviated command with the TAB key

determining which option, keyword, or argument is available for the entered command

selecting the best command to accomplish a task

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

Use Telnet to remotely access the switch through the network.

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

Use Secure Shell to remotely access the switch through the network.

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

10. What benefit does DHCP provide to a network?

Hosts always have the same IP address and are therefore always reachable.

DHCP allows users to refer to locations by a name rather than an IP address.

Hosts can connect to the network and get an IP address without manual configuration.

Duplicate addresses cannot occur on a network that issues dynamic addresses using DHCP and has static assignments.

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

global configuration mode

setup mode

ROM monitor mode

user EXEC mode

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

a Cisco router or switch only begins to operate when its hostname is set

a hostname must be configured before any other parameters

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

to allow local access to the device through the console port

13. 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. (Choose three.)

VTY interface

console interface

Ethernet interface

boot IOS mode

privileged EXEC mode

router configuration mode

14. Which two features are characteristics of flash memory? (Choose two)

Flash provides nonvolatile storage.

Flash receives a copy of the IOS from RAM when a device is powered on.

The contents of flash may be lost during a power cycle.

Flash is a component in Cisco switches but not in Cisco routers.

The contents of flash may be overwritten.

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

It affects the operation of the device immediately when modified.

It is stored in NVRAM.

It should be deleted using the erase running-config command.

It is automatically saved when the router reboots.

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

The command encrypts the banner message.

The command encrypts the enable mode password.

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

A network administrator who later logs into the device will be required to enter an administrator password in order to gain access to the Cisco device.

17.

$Math the description to the common IOS CLI access method$

Console port:

It displays startup, debugging, and error messages by default.

It can be used to restore an out-of-box configuration on a switch or router.

Virtual Interface:

It uses Telnet or SSH protocols for access.

It requires an active network connection.

AUX port:

It connects through dialup connections.

It is not supported on Catalyst switch devices.

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

if the TCP/IP stack is functioning on the PC without putting traffic on the wire

if there is connectivity with the destination device

the path that traffic will take to reach the destination

what type of device is at the destination

19. Which interface allows remote management of a Layer 2 switch?

the AUX interface

the console port interface

the switch virtual interface

the first Ethernet port interface

20. 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?

Telnet

Console

AUX

SSH

21. 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?

A switch was configured as shown