Question

1. Fill in the blanks.



1.__________
refers to the way different devices are connected in a network.
2. Short range wireless communication takes place through______
and_______.
3. A Modem converts the_______
signals generated by a computer to
signals and vice versa.
4.________
is a network adapter that connects a computer to a network.

​

Answer 1

Explanation:

Wireless communication

is a type of communication in which signals are transmitted over a distance

without the use of a physical medium. Information, data or voice, is transmitted as electromagnetic

waves, such as radio and microwaves, or as light pulses. Wireless communication enables users to

move around while remaining connected to the network.

Wireless media are also referred to as unbounded network media, where data signals are transmitted

through the air instead of cables. Wireless communication permits connections between areas where

it would be difficult or impossible to connect using wires, such as in hazardous areas, across long

distances, or inside historic buildings.

Wireless connections can be point-to-point, multipoint, or broadcast.

• Point-to-point communication is a direct connection between two nodes. Data transmitted by

one node goes directly to the other. Cellular communications are point-to-point

communications. Typically, point-to-point wireless connections are used to link distant buildings

or networks as part of a campus area network (CAN), a metropolitan area network (MAN), or a

wide area network (WAN).

• Multipoint communication involves connections between many nodes. Each multipoint

connection has more than two endpoints. A signal transmitted by any device through a medium

is not private. All devices that share the medium can detect the signal but cannot receive it.

Wireless networks are an example of multipoint communication.

Licensed For Use Only By: Joshua Ross [email protected] Apr 3 2018 8:57AM

• Broadcast communication is a communication method in which data goes from a source node to

all other nodes on a network. Each node receives and acts on the data. Radio communication is

an example of broadcast communication.