Computer Networking
When a group of computers is connected together in a small area without the help of telephone lines, it is called

Local area network(LAN)
Wide area network (WAN)
Remote communication network (RCN)
Value added network (VAN)
None of these

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Computer Networking
Which of the following summation operations is performed on the bits to check an error-detecting code?

Coder-decoder
Attenuation
Codec
Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Checksum

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Computer Networking
ARP (Address Resolution Protocol) is

a protocol used to monitor computers
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
a TCP/IP high level protocol for transferring files from one machine to another
a protocol that handles error and control messages
None of these

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