Computer Networking Exam Review 1

The OSI model is a seven-layer model used to differentiate among IP classes.

• True

• False

Which is a layer-3 device used to facilitate inter-network communication?

• Switch

• Hub

• Router

• RJ45 cable

Which is a connection-less transport protocol for fast deliver of network packets?

• IP

• TCP

• UDP

• ICMP

"Physical Address" is another name for...

• MAC Address

• IP Address

• Network Interface Card

• Address Resolution Protocol

Which command would you use to display the routing table on a Cisco router?

• show ip interface brief

• show status interface

• show interface complete

• show ip route

Which command would you use in the Cisco CLI to enter global configuration mode?

• enable

• admin

• configure terminal

• line console 0

What is the subnet mask for a class B network?

• 255.0.0.0

• 255.255.255.0

• 255.255.255.128

• 255.255.0.0

What is the decimal value of binary value "1011"?

• 11

• 10

• 8

• 3

In which layer of the OSI model does a switch function?

• Transport

• Network

• Data Link

• Physical

How many TCP/UDP ports are there?

• 65,535

• 16,384

• 1999

• These protocols do not use ports.