The answer is insufficient provisioned IOPS on the database. When the provisioned IOPS are too low for the workload, the database cannot process read/write requests fast enough, causing a queue buildup that manifests as high latency and intermittent timeouts—exactly the symptoms described, especially during peak hours. On the CompTIA Cloud+ CV0-004 exam, this scenario tests your understanding of storage performance limits versus network or configuration issues; a common trap is to blame network latency directly, but the root cause is often the database’s I/O bottleneck under load. Remember the memory tip: “IOPS queue = latency clues”—if you see high latency without application errors, think storage throughput first, not the network.
CV0-004 Troubleshooting Practice Question
This CV0-004 practice question tests your understanding of troubleshooting. 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 cloud administrator is troubleshooting an application that is experiencing intermittent timeouts. The application runs on a cloud VM and connects to a cloud database. The administrator sees no errors in the application logs but notices high network latency during peak hours. Which of the following is the MOST likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Insufficient provisioned IOPS on the database
Option B is correct because insufficient provisioned IOPS can cause queue buildup and latency. Option A is wrong because database schema issues would cause query errors, not latency. Option C is wrong because a missing route would cause complete failure, not intermittent timeouts. Option D is wrong because SSL misconfiguration would cause handshake failures.
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.
✓
Insufficient provisioned IOPS on the database
Why this is correct
Low IOPS leads to queueing and increased latency under load.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
SSL mismatch causes connection failures, not intermittent latency.
✗
Missing route table entry for the database subnet
Why it's wrong here
Missing route would cause unreachability, not intermittent timeouts.
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 CV0-004 subnetting questions on CIDR, address ranges, and subnet selection.
Troubleshooting — This question tests Troubleshooting — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Insufficient provisioned IOPS on the database — Option B is correct because insufficient provisioned IOPS can cause queue buildup and latency. Option A is wrong because database schema issues would cause query errors, not latency. Option C is wrong because a missing route would cause complete failure, not intermittent timeouts. Option D is wrong because SSL misconfiguration would cause handshake failures.
What should I do if I get this CV0-004 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 CV0-004 subnetting questions on CIDR, address ranges, and subnet selection.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Question Discussion
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