Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 399

In an FCoE environment, for which two sets of data must an interface that implements the PAUSE mechanism always provision sufficient ingress buffer? (Choose two.)

Answer options

• A. frames that were sent with high credit
• B. frames that were sent on the link but not yet received
• C. frames that were processed and transmitted by the transmitter after the PAUSE frame left the sender
• D. frames that were processed and transmitted by the transmitter before the PAUSE frame left the sender
• E. frames that were sent on the link and received

Correct answer: B, D

Explanation

The correct answers are B and D because the interface must buffer frames that are still in transit and those that were sent before the PAUSE frame was issued, ensuring they are not lost during congestion. Options A, C, and E do not pertain to the necessity of ingress buffer allocation in relation to the PAUSE mechanism.