Networking Cisco Netacad Ch2 Practice Test
To what subnet does the IP address 10.1.100.50 belong if a subnet mask of 255.255.0.0 is used?
10.1.0.0
How is an IPv6 address represented?
128 bits in length and written as a string of hexadecimal values. Every four bits is represented by a single hexadecimal digit; for a total of 32 hexadecimal values
What is the subnet mask of an IPv4?
32-bit value that differentiates the network portion of the address from the host portion
Name 2 commands that would return you to privileged EXEC mode prompt regardless of the configuration mode you are in?
CTRL+Z / END
Which access method would be most appropriate if you were in the equipment room with a new switch that needs to be configured?
Console
Which access method would be most appropriate if your manager gave you a special cable and told you to use it to configure the switch?
Console
True or False A Layer 2 switch needs an IP address?
False, the IP address is assigned to the SVI is used to remotely access the switch. An IP address is not necessary for the switch to perform its operation
What is the physical part of a computer including underlying electronics?
Hardware
What communicates between the hardware and software of a computer and manages how hardware resources are used to meet software requirements?
Kernel
Which memory location on a Cisco router or switch stores the startup configuration file?
NVRAM
An administrator has just changed the IP address of an interface on an IOS device. What else must be done in order to apply those changes to the device?
Nothing must be done. Changes to router and switch configurations take effect as soon as the command is entered. For this reason, it is very important that changes to live production devices are always carefully planned before being implemented. if command are entered that render the device unstable or inaccessible the device may have to be reloaded, resulting in network downtime.
Which IOS mode allows access to all commands and features?
Privileged EXEC mode
Which memory location on a Cisco router or switch will lose all content when the device is restarted?
RAM
What is the user interface that allows users to request specific tasks from the computer? these requests can be made either through the CLI or GUI interfaces
Shell
What type of interface has no physical port associated with it?
Switch Virtual Interface (SVI)
Which access method would be the most appropriate in-band access to the IOS over a network connection?
Telnet/SSH
True or False IPv6 addresses are not case-sensitive and can be written in either lowercase or uppercase.
True
What functionality is provided by DHCP?
automatic assignment of an IP address to each host
Which is the command to configure a banner to be displayed when connecting to a switch?
banner motd #keep out#
Which privileged EXEC mode command will save changes made to the running config to the startup config?
copy running-config startup-config
What is the structure of an IPv4 address called?
dotted-decimal format
How is the privileged EXEC mode access secured on a switch?
enable secret class
What are operating systems on home routers usually called?
firmware
How is an IPv4 address represented?
four decimal numbers between 0 and 255 separated by periods
Which IOS mode are you in if the Switch(config)# prompt is displayed?
global configuration mode
What is the privileged EXEC mode command erase startup-config used for?
if undesired changed were saved to the startup config you can clear all of the configuration & erase the startup config & restart the device
How do you enter line configuration mode?
line console 0
Which command enables password authentication for user EXEC mode access on a switch?
login
Which privileged EXEC mode command will restore the startup-config if changes made to the running config do not have the desired effects and the running config has not yet been saved?
reload
Which system file is stored in RAM and will lose all of its contents when the device is powered off or restarted ?
running-config
Which command encrypts all plaintext passwords access on a switch?
service password-encryption
Which privileged EXEC mode command is used to view the running config?
show running-config
Which system file is the saved configuration file that is stored in NVRAM and does not lose its contents when the device is powered off?
startup-config
What is a default gateway?
the IP address of the router that the host will use to access remote networks, including the internet
Why would a technician enter the command "copy startup-config running-config"
to copy an existing configuration into RAM
How do you configure an SVI on a switch?
use privileged EXEC mode command to enter global config mode SW1#config t SW1(config)# interface vlan 1 SW1(config-if)# ip address 192.168.1.20 255.255.255.0 SW1(config-if)# no shutdown SW1(config-if)# exit SW1(config)# ip default-gateway 192.168.1.1
A router with a valid operating system contains a configuration file stored in NVRAM. The configuration file has an enable secret password but no console password. When the router boots up, which mode will display?
user EXEC mode
Which IOS mode are you in if the Switch> prompt is displayed?
user EXEC mode
