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.
Exhibit
switch# show interface fcoe 1/1
fcoe1/1 is up, line protocol is up
Hardware is FCoE capable
Port WWN is 20:01:00:de:fb:ff:00:01
Admin port mode is F, trunk mode is off
SFP is Gigabit Ethernet
VSAN is 100, FCoE VLAN is 100, FCID is 0x010002
Data frames: 1500 bytes, CRC errors: 0
Priority Flow Control (PFC): enabled
PFC frames sent: 0, PFC frames received: 152
Refer to the exhibit. An engineer is troubleshooting poor FCoE performance. The exhibit shows output from the FCoE interface. Which observation indicates a potential issue?
switch# show interface fcoe 1/1
fcoe1/1 is up, line protocol is up
Hardware is FCoE capable
Port WWN is 20:01:00:de:fb:ff:00:01
Admin port mode is F, trunk mode is off
SFP is Gigabit Ethernet
VSAN is 100, FCoE VLAN is 100, FCID is 0x010002
Data frames: 1500 bytes, CRC errors: 0
Priority Flow Control (PFC): enabled
PFC frames sent: 0, PFC frames received: 152
A
PFC frames received is high compared to PFC frames sent
Receiving many pause frames implies the peer is congested or PFC mismatch.
B
The CRC error count is zero
Why wrong: Zero CRC errors indicate no physical errors.
C
Data frames are 1500 bytes, which is too small for FCoE
Why wrong: 1500 bytes is typical; jumbo frames are not indicated here.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
PFC frames received is high compared to PFC frames sent
PFC frames received (152) with zero sent suggests the interface is receiving pause frames from the peer, possibly due to congestion or a PFC configuration mismatch. Option B is correct. Option A (CRC errors) none. Option C (mode) is fine. Option D (MTU) default 1500 for data frames is consistent.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
PFC frames received is high compared to PFC frames sent
Why this is correct
Receiving many pause frames implies the peer is congested or PFC mismatch.
Related concept
Read the scenario before looking for a memorised answer.
✗
The CRC error count is zero
Why it's wrong here
Zero CRC errors indicate no physical errors.
✗
Data frames are 1500 bytes, which is too small for FCoE
Why it's wrong here
1500 bytes is typical; jumbo frames are not indicated here.
✗
The admin port mode is F instead of NP
Why it's wrong here
F mode is correct for an end device.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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
How to think about this question
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.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
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.
Storage Network — This question tests Storage Network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: PFC frames received is high compared to PFC frames sent — PFC frames received (152) with zero sent suggests the interface is receiving pause frames from the peer, possibly due to congestion or a PFC configuration mismatch. Option B is correct. Option A (CRC errors) none. Option C (mode) is fine. Option D (MTU) default 1500 for data frames is consistent.
What should I do if I get this 350-601 question wrong?
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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