Important Computer Terms for Banking Exams
Internet- It is the global network which can connect million
of computers worldwide.
Intranet- It is the restricted or local communication
network. It can be called as the private network which is created using WWW
(World Wide Web) S/W. Many interlinked LANS must be there in an Intranet. It is
the private network which is contained in an enterprise. It also uses leased
lines in WAN.
Extranet- It is the private network which uses the Public Telecommunication System and Internet Technology to share the part of business
operation or information with the suppliers, partners, vendors, customers and
other businesses.
LAN- The Local Area Network usually is privately
owned and can link the devices of a single office, campus or building.
MAN- It stands for Metropolitan Area Network. It is designed to connect an entire city.
Example- Cable TV networks.
WAN- It stands for Wide Area Network. It provides long distance
transmission of data over large geographic areas.
Repeater- It is active at Physical layer of the OSI model. It
can extend the length of a LAN segment. It has various features. It can remove
the noise, regenerate the original signals and output the signal on the other
end. A simple repeater can connect similar types of segments.
Bridge- The Bridge can be used to connect two similar type
of LANs. It examines the source address in a frame and places the address in a
routing table for routing decisions for future. It can also examine the
destination address in a frame.
Hubs- It is actually a Multi-port repeater. It normally
can used to build connections between stations in the Star topology. It can also
be used to create multi-levels of hierarchy.
Switches- It is a combination of Hub and Bridge. It can
interconnect two or more work stations. Along with it observes traffic flow.
Routers- It can connect two or more LANs with same network
layers. It can determine the best path for the message to take between the
networks.
Brouters- It is the combination of bridges and Routers. It
operates in both data link and network layers. It can connect both of the same
and different data link type segments.
Gateway- It is a protocol converter. It is used to connect
LAN with same or different link type network LAN segments.
VSAT- It stands for Very Small Aperture Terminal. It is a
satellite based communication system which can serve home and business users. The
end user of VSAT needs the box that interfaces between an
outside antenna with a transceiver and the user’s computer. It sends or receives the signal to
satellite transponder in sky. The range of majority of the VSAT
antennas is from 75 cm to approximately 1.2 m. It provides high speed, broad-band
satellite communication for internet or private network communications.
DNS- It stands for Domain Name System. It is a supporting
program which is used by other programs such as email etc.
DDNS- It stands for Dynamic Domain Name System. It is used
for manual updating.
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