- A
SwapUsage
Increasing swap usage indicates the OS is paging memory to disk, sign of memory pressure.
- B
FreeableMemory
Decreasing free memory can indicate a leak.
- C
DatabaseConnections
Why wrong: Number of connections does not directly reflect memory usage.
- D
CPUUtilization
Why wrong: High CPU may accompany memory leak but is not a direct indicator.
- E
ReadIOPS
Why wrong: ReadIOPS measures I/O operations, not memory.
Question 1,388 of 1,730
DBS-C01 Monitoring and Troubleshooting Practice Question
This DBS-C01 practice question tests your understanding of monitoring and troubleshooting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which TWO metrics should be monitored to detect a memory leak in an RDS for Oracle instance? (Choose 2.)
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
✓
SwapUsage
Options A and B are correct because FreeableMemory shows the available memory, and SwapUsage indicates when the OS uses swap due to memory pressure, which are both signs of a memory leak. Option C is wrong because DatabaseConnections does not directly indicate a memory leak. Option D is wrong because CPUUtilization may be high but is not specific to a memory leak. Option E is wrong because ReadIOPS relates to I/O, not memory.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SwapUsage
Why this is correct
Increasing swap usage indicates the OS is paging memory to disk, sign of memory pressure.
Related concept
Standard ACLs match source addresses.
- ✓
FreeableMemory
Why this is correct
Decreasing free memory can indicate a leak.
Related concept
Standard ACLs match source addresses.
- ✗
DatabaseConnections
Why it's wrong here
Number of connections does not directly reflect memory usage.
- ✗
CPUUtilization
Why it's wrong here
High CPU may accompany memory leak but is not a direct indicator.
- ✗
ReadIOPS
Why it's wrong here
ReadIOPS measures I/O operations, not memory.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Monitoring and Troubleshooting — This question tests Monitoring and Troubleshooting — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: SwapUsage — Options A and B are correct because FreeableMemory shows the available memory, and SwapUsage indicates when the OS uses swap due to memory pressure, which are both signs of a memory leak. Option C is wrong because DatabaseConnections does not directly indicate a memory leak. Option D is wrong because CPUUtilization may be high but is not specific to a memory leak. Option E is wrong because ReadIOPS relates to I/O, not memory.
What should I do if I get this DBS-C01 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Last reviewed: Jun 20, 2026
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