OSI model

Question 1

What is the data called on the physical layer (layer 1)

Answer 1

Bits

Question 2

What are the two sublayers in the data link layer?

Answer 2

Media Access Control MAC
Logical Link Layer LLC

Question 3

What does MAC do?

Answer 3

Defines how packets are placed on media.

Question 4

What does LLC do?

Answer 4

Places header information to designate where the packet is supposed to go.

Question 5

How is distance measured on the Network Layer?

Answer 5

Metric, Hop count

Question 6

What type of packets are found on the network layer?

Answer 6

Data Packets
Route Update Packets

Question 7

What is windowing

Answer 7

It is a dataflow mechanism inside the transport layer that allows for the smooth transfer of data by the use of buffering

Question 8

What layer is flow control found?

Answer 8

Transport layer layer 4

Question 9

What are modes of communication offered at the session layer?

Answer 9

Simplex (one way)
Half duplex (two way but one at a time)
Full duplex (two way at the same time)

Question 10

What layer of the OSI model handles compression?

Answer 10

Presentation layer 6

Question 11

What is 802.1 standard

Answer 11

LAN/MAN Management (media access control bridges)

Question 12

What is 802.3

Answer 12

CSMA/CD (Ethernet)

Question 13

What is 802.11

Answer 13

Wireless LAN

Question 14

What is 802.15

Answer 14

Wireless Personal Network