OSI Model - Network Layer

Routers operate at:

(Choose two.)

• Physical layer of the OSI model

• Application layer of the OSI model

• Layer 3 of the OSI model

• Network layer of the OSI model

• Layer 5 of the OSI model

How many bits are in an ipv4 address?

• 16

• 32

• 64

• 128

What does the number 72 identify in the below IP address :

72.22.7.90/8

• Identify specific mouse

• Identify network

• Identify specific computer

• Identify interface

Which type of address is exposed to the Internet?

• Public

• Private

What is the default subnet mask for a Class B ip address?

• 255.0.0.0

• 255.255.0.0

• 255.255.255.0

Which two of the following are private IP addresses? (Choose 2.)

• 12.0.0.1

• 168.172.19.39

• 172.20.14.36

• 175.88.44.99

• 192.168.24.43

which one is the loopback ip address?

• 169.254.0.1

• 0.0.0.0

• 127.0.0.1

• 128.0.0.1

which one is the APIPA address ?

• 169.255.0.5

• 169.254.255.254

• 169.255.254.255

• 169.255.255.254

What application is automatically executed when an IP address must be matched to a MAC address?

• ARP

• RARP

• DHCP

• DNS

There are two private networks connected to the Internet. Can they both use the same IP addressing scheme?

(e.g. can both use 192.168.0.0/24)

• True

• False