Question

1.Ring topology allows direct data transfer between non-connected nodes.
2. A LAN can be created between two offices in different cities.
3. A repeater is used to inter-connect two networks using different protocols
4. Optical fiber cables can carry multiple signals at high speeds.
5. Microwaves follow line of sight transmission.
R Write T for True and 'F' for Falsse​

Answer 1

Answer:

1) F

2) F

3) F

4) T

5) T

Explanation:

1) Ring topology with its name you can guess how it's nodes can be connected. It's connection will be like ring. Each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node - a ring. Data travels from node to node, with each node along the way handling every packet.

2) LAN - Local Area Network

A local area network is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.

WAN - Wide Area Network

WAN can be created between two offices in different cities.

3) Gateway device is used to connect two system, especially if the system use different protocols.

So the answer is false

Repeater : A repeater is an electronic device that receives a signal and retransmits it. Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction.

4) Each fiber can carry many independent channels, each using a different wavelength of light (wavelength-division multiplexing).

wavelength of light represents it's speed. which is high speed.

5) Microwaves travel by line-of-sight; unlike lower frequency radio waves they do not diffract around hills, follow the earth's surface as ground waves, or reflect from the ionosphere, so terrestrial microwave communication links are limited by the visual horizon to about 40 miles (64 km).