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 Fibre Channel switch port is experiencing a high number of CRC errors. Which action should be taken to resolve this issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Replace the fiber optic cable between the switch and the storage device.
CRC errors often indicate physical layer issues such as faulty cables or SFPs. Replacing the cable is the first step in troubleshooting. Option A is wrong because increasing the buffer credits does not fix CRC errors. Option B is wrong because reducing speed may mask the issue. Option D is wrong because zoning changes do not affect CRC errors.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Replace the fiber optic cable between the switch and the storage device.
Why this is correct
CRC errors typically indicate physical layer problems like bad cables.
Slowing down might reduce errors but doesn't address root cause.
✗
Reconfigure the zone to include only the affected device.
Why it's wrong here
Zoning changes do not affect CRC errors.
✗
Increase the buffer credits on the port.
Why it's wrong here
Buffer credits relate to flow control, not CRC errors.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
CIDR notation defines the prefix length.
Block size helps identify subnet boundaries.
Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
The required host count determines the smallest suitable subnet.
TExam Day Tips
→Write the block size before choosing the subnet.
→Check whether the question asks for hosts, subnets or a specific address range.
→Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 350-601 subnetting questions on CIDR, address ranges, and subnet selection.
Storage Network — This question tests Storage Network — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Replace the fiber optic cable between the switch and the storage device. — CRC errors often indicate physical layer issues such as faulty cables or SFPs. Replacing the cable is the first step in troubleshooting. Option A is wrong because increasing the buffer credits does not fix CRC errors. Option B is wrong because reducing speed may mask the issue. Option D is wrong because zoning changes do not affect CRC errors.
What should I do if I get this 350-601 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related 350-601 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Question Discussion
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