Which of the following is true about roll call polling?
A)It can not be modified to increase priority of clients or terminals.
B)It does not require a server or host or special device that performs the polling.
C)It is also called token passing.
D)It is a type of contention approach to media access control.
E)It typically involves some waiting because the server has to wait for a response from the polled client or terminal.

Question

Quizplus · Accepted Answer

Roll call polling involves the server polling clients or terminals one at a time, which means there is typically some waiting involved as the server has to wait for a response from each polled device before moving on to the next one. Options A, B, C, and D are not true about roll call polling. Option A is incorrect because roll call polling can be modified to increase the priority of clients or terminals by changing the order in which they are polled. Option B is incorrect because roll call polling does require a server or specially designated device to perform the polling. Option C is incorrect because token passing is a different approach to media access control. Option D is incorrect because roll call polling is not a type of contention approach.

Which of the Following Is True About Roll Call Polling