With connections, polling is not necessary because there is only one terminal per line. a. point-to-point b. multipoint c. terminal-to-point d. primary-to-point

a.  point-to-point connections

Explanation:

Point - to - point connections -

It is the method of communication , where the connection is established between two endpoints or nodes , is referred to as point-to-point connections .

The example of  point-to-point connections is - telephone call , two - way radio , microwave radio relay , leased lines etc.

In point-to-point connections , there is only one ending in one specific line .

Hence , from the given information of the question ,

The correct option is a.  point-to-point connections .

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