Connection methods pt2

Question 1

ISDN

Answer 1

Integrated service digital network transmits voice and video data simultaneously over copper telephone wires. It uses a circuit switched network where all data packets take the same route.

Question 2

Voice networks

Answer 2

PSTN
Cellular

Question 3

PSTN

Answer 3

Public Switched Telephone Network is the global connection of wired public telephone networks that are used to transmit data over a long distance. It is more reliable with more consistent connection quality.

Question 4

Cellular

Answer 4

Requires a cell or transmitting tower to be in close proximity to the communication device. It has a greater range than PSTN but can be disrupted by buildings and poor weather. Each cell tower is also connected to the PSTN

Question 5

Satellite

Answer 5

It uses point-to-multipoint communication by using satellites above the earth’s atmosphere that receive a transmission and rebroadcast them back to earth. There is a delay because of the distance and large file take longer however it is beneficial in remote locations.