This 350-601 practice question tests your understanding of storage network. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A storage network engineer notices high buffer credit starvation counters on an inter-switch link. What is the most effective solution to reduce this issue?
Change the ISL port mode from E to F.
Why wrong: F ports are for end devices, not ISLs.
Reduce the ISL speed to 1 Gbps.
Why wrong: Lower speed may reduce the need for credits but decreases bandwidth.
Increase the number of buffer credits on the ISL.
More buffer credits accommodate longer distances and reduce starvation.
Enable QoS to prioritize buffer credit recovery.
Why wrong: QoS does not directly affect buffer credit allocation.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Increase the number of buffer credits on the ISL.
Buffer credit starvation indicates insufficient credits for the distance. Option B is correct. Option A is wrong because ISL ports should be E ports, not F. Option C is wrong because reducing speed may not help. Option D is wrong because QoS can prioritize but not increase credits.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Change the ISL port mode from E to F.
Why it's wrong here
F ports are for end devices, not ISLs.
Reduce the ISL speed to 1 Gbps.
Why it's wrong here
Lower speed may reduce the need for credits but decreases bandwidth.
Increase the number of buffer credits on the ISL.
Why this is correct
More buffer credits accommodate longer distances and reduce starvation.
Related concept
Read the scenario before looking for a memorised answer.
Enable QoS to prioritize buffer credit recovery.
Why it's wrong here
QoS does not directly affect buffer credit allocation.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 350-601 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which 350-601 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Storage Network — This question tests Storage Network — Read the scenario before looking for a memorised answer..
The correct answer is: Increase the number of buffer credits on the ISL. — Buffer credit starvation indicates insufficient credits for the distance. Option B is correct. Option A is wrong because ISL ports should be E ports, not F. Option C is wrong because reducing speed may not help. Option D is wrong because QoS can prioritize but not increase credits.
Identify which 350-601 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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