350-601 Storage Network Practice Question
An administrator is configuring a Cisco MDS switch for FCoE. Which two DCB features must be enabled to support FCoE traffic? (Choose two.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Data Center Bridging Exchange (DCBX)
FCoE requires lossless Ethernet. PFC provides no-drop priority for FCoE traffic, and DCBX is used to negotiate PFC and other parameters between peers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Jumbo frames
Why it's wrong here
Jumbo frames are optional and not a DCB feature.
- ✗
Link Aggregation Control Protocol (LACP)
Why it's wrong here
LACP is for Ethernet link aggregation, not a DCB feature for FCoE.
- ✓
Data Center Bridging Exchange (DCBX)
Why this is correct
DCBX is used to discover and configure DCB capabilities, including PFC.
- ✓
Priority Flow Control (PFC)
Why this is correct
PFC ensures lossless delivery for FCoE frames by pausing other traffic classes.
- ✗
Enhanced Transmission Selection (ETS)
Why it's wrong here
ETS is for bandwidth allocation, not strictly required for FCoE, though recommended.
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