COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

LAN WAN AND THE INTERNET

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of these items describes a LAN?
A
A computer network covering a small geographic area, like a home, office, school, or group of buildings.
B
A computer network that covers a broad area (e.g. any network whose communications links cross metropolitan, regional, or national boundaries over a long distance).
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -A local area network (LAN) is a group of computers and peripheral devices that share a common communications line or wireless link to a server within a distinct geographic area. A local area network may serve as few as two or three users in a home office or thousands of users in a corporation’s central office.

Detailed explanation-2: -A Local Area Network (LAN) is a network that is confined to a relatively small area. It is generally limited to a geographic area such as a writing lab, school, or building. Computers connected to a network are broadly categorized as servers or workstations.

Detailed explanation-3: -A local area network, or LAN, consists of a computer network at a single site, typically an individual office building. A LAN is very useful for sharing resources, such as data storage and printers. LANs can be built with relatively inexpensive hardware, such as hubs, network adapters and Ethernet cables.

Detailed explanation-4: -LANs can be distinguished from other networks because of their short distance. The total coverage may be from 1 km to 10 kms. The data transmission speed of LANs is much higher than in other types of networks.

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