6.3-1. Channel partitioning protocols. Which of the following statements is true about channel partitioning protocols?Group of answer choicesChannel partitioning protocols can achieve 100% channel utilization, in the case that all nodes always have frames to send.Channel partitioning protocol can achieve 100% utilization, in the case that there is only one node that always has frames to sendThere can be simultaneous transmissions resulting in collisions.There can be times when the channel is idle, when a node has a frame to send, but is prevented from doing so by the medium access proto
Question
6.3-1. Channel partitioning protocols. Which of the following statements is true about channel partitioning protocols?Group of answer choicesChannel partitioning protocols can achieve 100% channel utilization, in the case that all nodes always have frames to send.Channel partitioning protocol can achieve 100% utilization, in the case that there is only one node that always has frames to sendThere can be simultaneous transmissions resulting in collisions.There can be times when the channel is idle, when a node has a frame to send, but is prevented from doing so by the medium access proto
Solution
The statement that is true about channel partitioning protocols is: "There can be times when the channel is idle, when a node has a frame to send, but is prevented from doing so by the medium access protocol."
This is because channel partitioning protocols, such as Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), and Code Division Multiple Access (CDMA), divide the channel into smaller parts to allow multiple nodes to transmit data simultaneously. However, if a node has data to send but the channel is currently being used by another node, the node with data must wait until the channel is free. This can result in times when the channel is idle, even though there is a node with a frame to send.
The other statements are not generally true. Channel partitioning protocols cannot always achieve 100% channel utilization, even if all nodes always have frames to send or if there is only one node that always has frames to send. This is because these protocols divide the channel into smaller parts, and not all parts may be used at all times.
Simultaneous transmissions resulting in collisions are not a characteristic of channel partitioning protocols. These protocols are designed to prevent collisions by dividing the channel into smaller parts and assigning each part to a different node.
Similar Questions
6.3-3. Polling and token-passing protocols. Which of the following statements is true about polling and token-passing protocols?Group of answer choicesThese protocol can achieve close to 100% channel utilization, in the case that all nodes always have frames to send (the fact that the utilization is close to, but not exactly, 100% is due to a small amount of medium access overhead but not due to collisions)There can be times when the channel is idle for more than a short period of time, when a node has a frame to send, but is prevented from doing so by the medium access protocol.There can be simultaneous transmissions resulting in collisions.These protocol can achieve close 100% utilization, in the case that there is only one node that always has frames to send (the fact that the utilization is close to, but not exactly, 100% is due to a small amount of medium access overhead but not due to collisions)
6.3-2. Pure Aloha and CSMA. Which of the following statements is true about both Pure Aloha, and CSMA (both with and without collision detection?Group of answer choicesThere can be simultaneous transmissions resulting in collisions.Pure Aloha and CSMA can achieve 100% utilization, in the case that there is only one node that always has frames to sendThere can be times when the channel is idle, when a node has a frame to send, but is prevented from doing so by the medium access protocol.Pure Aloha and CSMA can achieve 100% channel utilization, in the case that all nodes always have frames to send.
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