15. 15. A driver design contains a total of 89 buffers in its memory pool. The s

Question

15. 15. A driver design contains a total of 89 buffers in its memory pool. The size of each buffer is 272 bytes of which 16 bytes are reserved for management. Will the following Ethernet frame reception scenario cause the driver to raise an overrun interrupt?
SCENARIO: 10 frames are received with respective sizes of 134, 567, 756, 12, 890, 4560, 2345, 7193, 34, and 4523 bytes each.

A) No, there will not be an overrun interrupt since we need a total of 85 buffers and we have 89 buffers in the pool.

B) Yes, driver will raise an overrun interrupt since we need a total of 91 buffers where there are only 89 buffers in the pool.

C) Yes, driver will raise an overrun interrupt since we need a total of 90 buffers where there are only 89 buffers in the pool.

D) No, there will not be an overrun interrupt since we need a total of 88 buffers and we have 89 buffers in the pool.

Explanation / Answer

C) Yes, driver will raise an overrun interrupt since we need a total of 90 buffers where there are only 89 buffers in the pool.

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