NIELIT O Level Solved Paper
Internet and Web Technology
Q: Define MAN. Write down three important features that discriminate MAN from WAN.
A metropolitan area network (MAN) is a network that connect users
with computer resources in a geographic area or region larger than that covered
by even a large local area network (LAN) but smaller than the area covered by a
wide area network (WAN). The term is applied to the interconnection of networks
in a city into a single larger network (which may then also offer efficient
connection to a wide area network). It is also used to mean the interconnection
of several local area networks by bridging them with backbone lines. The latter
usage is also sometimes referred to as a campus network.
MAN is used to combine into a
network group located in different buildings into a single network. The diameter
of such a network can range from 5 to 50 kilometers. As a rule, MAN does not
belong to any particular organization, in most cases, a group of users or a
provider who takes charge for the service own its connecting elements and other
equipment.
It is also often used to provide
public available connection to other networks using a WAN connection. There are
many ways of classifying networks. The main criterion for classification is
considering the administration method. That is, depending on how the network is
organized and how it is controlled, it can be attributed to local or
distributed, metropolitan or WAN. or her A network administrator manages a
network or it’s segment
Advantage
- MAN is more reliable than WAN because it has more controlling than Wan so security is better
- ITS not fully public network So performance of this network is constant apart from WAN performance affect by many aspect number users , network connectivity etc.
- Speed of MAN is better than WAN
- Not complicated as compare to WAN for connect a city or a campus.
- Some installations allow multiple users to share the same high-speed Internet connection, thereby sharing the cost of the service and securing a better quality of service through collective bargaining and economies of scale.
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