Week 2: Session 3: An introduction to switching

Question 1

broadcast

Answer 1

To send a message to all devices on a network.

Question 2

broadcast domain

Answer 2

The set of devices on a network that will be sent the same broadcast messages.

Question 3

data unit

Answer 3

A small chunk of data, of a certain size and format.

Question 4

encapsulation

Answer 4

The process of each layer adding its own information and creating its own data unit.

Question 5

forwarding table

Answer 5

Table used by a switch to associate MAC addresses of devices with port numbers to enable frames to be forwarded to their destination.

Question 6

frame

Answer 6

A data unit at the Network Access layer.

Question 7

Internet layer

Answer 7

Layer of the TCP/IP protocol suite with responsibility for getting data across networks.

Question 8

Network Access layer

Answer 8

Bottom layer of the TCP/IP protocol suite with responsibility for delivering data within the local area network.

Question 9

packet

Answer 9

A data unit at the Internet layer.

Question 10

payload

Answer 10

The part of a data unit that is the actual user data.

Question 11

port

Answer 11

In this context, the physical sockets into which network cables are plugged.

Question 12

router

Answer 12

A network device responsible for getting data across networks.

Question 13

segmentation

Answer 13

The process of breaking data down into smaller units of the same size.

Question 14

switch

Answer 14

A network device responsible for delivering data within the local area network.