OSI Model - Data Link Layer

What does MAC stand for?

• media access control

• multi access control

• media account control

• multi address control

What is the PDU for layer 2 in the OSI model?

• Packet
• Frame
• Bits
• Data
• Segment

Bits are packaged into frames at which layer of the OSI model?

• data link

• transport

• physical

• presentation

• application

Which of the following devices resides at the data link layer of the OSI model?

• Router

• Passive hub

• Ethernet switch

• Repeater

Which of these is NOT a valid MAC Address?

• 9a-36-3e-52-30-f3:96
• 70-9B-C5-B5-B3-68
• 80.1a.e3.4d.b1.b2
• ff:ff:ff:ff:ff:ff

A broadcast domain consists of:

(Choose two.)

• All computers and or switches my computer can reach without crossing a router.

• All computers on the Internet.

• Computers and other devices that can be reached when sending frames to ff:ff:ff:ff:ff:ff.

• All computer with the IP address of 192.168.0/24

Computers get MAC addresses from a DHCP server.

• True

• False

Which of the following are layer 2 devices?

• NIC

• Hub

• Router

• Switch

Collision domains are eliminated by the use of full-duplex networking and hubs.

• True

• False

If a computer can discover the MAC address for another computer, it can communicate directly with that computer.

• True

• False