C: Answer the following in one word:
1. When two users have simultaneous conversation by live video.
2. The means of communication that uses low powered radio waves to transmit data
between devices.
3. The Networking that allows networks to be deployed without cabling.
4. The most commonly used network card.
5. The wireless technology used to interconnect mobile phones, computers and printers
using short range wireless connection.
6. The device that connects wireless communication devices to form a wireless network.
7. The standard file name extension of database in MS Office Access 2007.
8. The key that checks on the table that every record in the table is unique and does not
contain any duplicate data.
9. A set of characters that represents a valid value.
10. It collects the summarized data from one or more table / queries and organizes it in a
printable form
Answers
Answer:
Wireless communication
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