DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it is used whenever the primary device has something to send
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it is used whenever the secondary device has something to send
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control frame
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data frame
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Detailed explanation-1: -The primary device determines which device is allowed to use the communication channel. Therefore, we can say that it is an initiator of the session. If the primary device wants to receive the data from the secondary device, it asks the secondary device that they anything to send, this process is known as polling.
Detailed explanation-2: -In token passing, all the stations in a particular network need to be arranged in the form of a logical ring, then only can send the data. In Polling, only one station serves as a primary station, and all other stations on a medium act as the secondary station.
Detailed explanation-3: -In networks, polling is used to determine which nodes want to access the network. It is also used by routing protocols to retrieve routing information, as is the case with EGP (exterior gateway protocol).