Computer Networking
When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?

None of these
30
80
100
150

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Computer Networking
HMP (Host Monitoring Protocol) is:

a TCP/IP high level protocol for transferring files from one machine to another.
None of these
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 protocol that handles error and control messages

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Computer Networking
Carrier is

One or more conductors that serve as a common connection for a related group of devices
a continuous frequency capable of being modulated or impressed with a second signal
the condition when two or more sections attempt to use the same channel at the same time
a collection of interconnected functional units that provides a data communications service among stations attached to the network
None of these

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