1.
Fill in the blank.A _______ address is defined as a reserved address that routes packets back to the host.
Explanation
Refer to curriculum topic: 2.3.3
A loopback address is used to verify the internal IP configuration on a local host.
2.
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?
Correct Answer
D. Nothing must be done. Changes to the configuration on an IOS device take effect as soon as the command is typed correctly and the Enter key has been pressed.
Explanation
Refer to curriculum topic: 2.2.3
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 commands are entered that render the device unstable or inaccessible, the device may have to be reloaded, resulting in network downtime.
3.
A network administrator has forgotten the argument of an IOS command. How would the administrator get help from the IOS CLI to complete the command correctly?
Correct Answer
B. Type the command and then press the ? key.
Explanation
Refer to curriculum topic: 2.1.4
In order to get help about a command argument, type the command and use the ? key (do not press the Enter key). For example, to get help about the argument of the ip address command, type the command followed by ? as shown:
Router(config-if)# ip address ?
4.
Refer to the exhibit.Fill in the blank. Do not use abbreviations.What command does a technician issue on a switch to display the exhibited output? _______
Correct Answer
show ip interface brief
Explanation
Refer to curriculum topic: 2.3.3
The show ip interface brief command shows a summary of interface status for routers or switches.
5.
Which two statements are true regarding the user EXEC mode? (Choose two.)
Correct Answer(s)
C. This is the default mode on an unconfigured router when first powered up.
E. Only some aspects of the router configuration can be viewed.
Explanation
Refer to curriculum topic: 2.1.3
User EXEC mode limits access to some show and debug commands. It is the first level of user interface when configuring a router and is intended for investigation of certain functions of the device.
6.
Which device acts as a gateway to allow hosts to send traffic to remote IP networks?
Correct Answer
C. Local router
Explanation
Refer to curriculum topic: 2.3.2
For hosts to reach remote networks, they must send traffic to a local router that can route the traffic to the correct destination network. This local router is known as the default gateway and hosts must be configured with this address in order to communicate with devices on remote networks.
7.
What will a network administrator use to modify a configuration on a Cisco router?
Correct Answer
B. IOS
Explanation
Refer to curriculum topic: 2.1.1
Cisco IOS is the operating system that is used on Cisco network devices. For initial configuration, a network administrator cables to the console port and uses a terminal emulation application in order to access the IOS.
8.
Why would a network administrator use the CLI of the Cisco IOS?
Correct Answer
B. To add a password to a Cisco network device
Explanation
Refer to curriculum topic: 2.1.1
IOS is the Cisco operating system that is found on Cisco network devices. The operating system is used to configure, monitor, and manage the network device.
9.
A technician configures a switch with these commands: SwitchA(config)# interface vlan 1SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0SwitchA(config-if)# no shutdown What is the technician configuring?
Correct Answer
B. SVI
Explanation
Refer to curriculum topic: 2.3.2
For a switch to have an IP address, a switch virtual interface must be configured. This allows the switch to be managed remotely over the network.
10.
What is encrypted with the enable secret command?
Correct Answer
B. The privileged executive mode password
Explanation
Refer to curriculum topic: 2.2.2
The enable secret command encrypts the password that is required for entering the privileged executive mode of a router or switch. Encrypting the password prevents the password from being saved in plain text in the configuration file.
11.
Which statement describes a feature of an IOS host name configuration?
Correct Answer
D. It does not allow spaces.
Explanation
Refer to curriculum topic: 2.2.1
A host name can include letters, digits, and dashes and must be contain fewer than 64 characters and cannot contain a space. It could be registered with a DNS server, but this is not a requirement.
12.
Why would a technician enter the command; copy startup-config running-config?
Correct Answer
C. To copy an existing configuration into RAM
Explanation
Refer to curriculum topic: 2.2.3
Usually, changes are made to a running configuration in RAM and copied to NVRAM. However, in this case, the technician wants to copy a previously saved configuration from NVRAM into RAM in order to make changes to it.
13.
To save time, IOS commands may be partially entered and then completed by typing which key or key combination?
Correct Answer
A. Tab
Explanation
Refer to curriculum topic: 2.1.4
14.
What command will prevent all unencrypted passwords from displaying in plain text in a configuration file?
Correct Answer
D. (config)# service password-encryption
Explanation
Refer to curriculum topic: 2.2.2
To prevent all configured passwords from appearing in plain text in configuration files, an administrator can execute the service password-encryption command. This command encrypts all configured passwords in the configuration file.