Topic 3: NDC

What is the default subnet mask for a Class C IPv4 address?

• 255.255.255.0

• 255.255.0.0

• 255.0.0.0

• 255.255.254.0

Which command is used to enter privileged EXEC mode in Cisco IOS?

• enable

• config

• exec

• terminal

How many usable hosts are there in a /29 subnet?

• 6

• 8

• 2

• 4

What is the purpose of a subnet mask?

• To encrypt data

• To identify the default gateway

• To separate the network and host portion of an IP address

• To route packets

What is the binary equivalent of 192?

• 10100000

• 11000000

• 11110000

• 10000000

Which command is used to configure an IP address on a Cisco router interface?

• ip address

• assign ip

• set ip

• ifconfig

Which part of the IP address 192.168.1.10/24 is the host portion?

• 192.168.1

• 192

• 10

• 1.10

What is the loopback IP address?

• 192.168.1.1

• 0.0.0.0

• 127.0.0.1

• 255.255.255.255

Which of the following is a private IP address?

• 8.8.8.8

• 192.168.0.1

• 172.32.0.1

• 11.0.0.1

Which command is used to save configuration in Cisco IOS?

• write memory

• copy running-config startup-config

• save config

• backup