350-601 Storage Network Practice Question
An engineer is tuning performance for a storage network. Which two practices improve FC SAN performance?
⚠ Common exam trap
Cisco often tests the misconception that disabling flow control improves performance by reducing overhead, but in FC SANs, flow control (BB_Credit) is mandatory for lossless operation, and disabling it causes frame drops and retransmissions.
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
✓
Using single-initiator zoning.
Single-initiator zoning (Option B) reduces inter-switch link (ISL) traffic and prevents fabric-wide disruptions by ensuring that only one initiator can communicate with a specific set of target ports. This minimizes the number of Registered State Change Notifications (RSCNs) and simplifies troubleshooting, directly improving FC SAN performance by reducing control-plane overhead.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disabling flow control.
Why it's wrong here
Flow control is essential.
- ✓
Using single-initiator zoning.
Why this is correct
Reduces inter-initiator traffic.
- ✓
Ensuring adequate buffer credits.
Why this is correct
Prevents frame loss.
- ✗
Enabling broadcast zoning.
Why it's wrong here
Broadcast increases overhead.
- ✗
Setting fabric login timeout to the maximum.
Why it's wrong here
Does not improve performance.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-601 exam.