Revision 3.4

Question 1

Topology (network)

Answer 1

Define the paths that data packets travel within a network

Question 2

LAN

Answer 2

A Local Area Network (LAN) is a network in which the computer systems are all located relatively close to each other,

Question 3

WAN

Answer 3

A Wide Area Network (WAN) is a network spanning a large geographical area, such as multiple cities or countries.

Question 4

MAN

Answer 4

A Metropolitan Area Network (MAN) covers the range of a town or city, for example a university campus network.

Question 5

Link layer

Answer 5

This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer.

Question 6

Satellites

Answer 6

Satellite networks use point-to-multipoint communication by using satellites above the Earth’s atmosphere that receive a transmission and rebroadcast them back to Earth.

Question 7

Voice (satellites)

Answer 7

Voice networks primarily transfer audio data using phones and telephone lines.

Question 8

PSTN

Answer 8

PSTN (Public Switched Telephone Network) is the global collection of wired public telephone networks that are used to transmit data over a long distance.

Question 9

ISDN

Answer 9

transmits both data and voice over a digital line

Question 10

Leased line

Answer 10

Leased Line is a method of providing an uncontended, fixed- bandwidth data connection.

Question 11

Ethernet

Answer 11

Wired Ethernet LAN (technically Ethernet is a protocol that controls how data is transmitted over a LAN).

Question 12

Geostationary

Answer 12

including telecommunications, broadcasting, remote sensing and navigation.

Question 13

Internet Vs Intranet

What is the difference between Internet and Intranet? 

Answer 13

The internet is the big, wide world of cyberspace, the intranet is your company’s private digital workspace, and the extranet is a members-only site where you can collaborate with colleagues and partners