- A
Use AWS Systems Manager Run Command to apply the patch without reboot.
Why wrong: Kernel patches often require reboot; Run Command can't avoid reboot.
- B
Reboot all nodes simultaneously during the maintenance window.
Why wrong: Rebooting all nodes at once causes full downtime.
- C
Use HANA scale-out to move services to other nodes, then reboot each node sequentially.
This allows zero or minimal downtime by leveraging cluster redundancy.
- D
Create a new EC2 instance with the patch applied, then update DNS to point to the new instance.
Why wrong: DNS changes take time and may cause session drops; also not suitable for multi-node.
Question 720 of 1,733
PAS-C01 Operations and Maintenance Practice Question
This PAS-C01 practice question tests your understanding of operations and maintenance. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 company runs SAP on AWS using an SAP HANA multi-node cluster. The operations team needs to apply an OS-level security patch that requires a reboot. How can they minimize downtime?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
✓
Use HANA scale-out to move services to other nodes, then reboot each node sequentially.
Option C is correct because in a HANA multi-node cluster, you can leverage HANA's scale-out capabilities to move services (e.g., using HANA system replication or failover) to other nodes, then reboot each node sequentially. This minimizes downtime as the database remains available through the other nodes. Option A is incorrect because AWS Systems Manager Run Command can apply the patch, but if a reboot is required, it will still need a reboot, causing downtime. Option B is incorrect because rebooting all nodes simultaneously will cause complete downtime. Option D is incorrect because creating a new EC2 instance and updating DNS introduces complexity, potential connectivity issues, and is not a standard approach for HANA clusters; it also does not leverage HANA's built-in high availability features.
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.
- ✗
Use AWS Systems Manager Run Command to apply the patch without reboot.
Why it's wrong here
Kernel patches often require reboot; Run Command can't avoid reboot.
- ✗
Reboot all nodes simultaneously during the maintenance window.
Why it's wrong here
Rebooting all nodes at once causes full downtime.
- ✓
Use HANA scale-out to move services to other nodes, then reboot each node sequentially.
Why this is correct
This allows zero or minimal downtime by leveraging cluster redundancy.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a new EC2 instance with the patch applied, then update DNS to point to the new instance.
Why it's wrong here
DNS changes take time and may cause session drops; also not suitable for multi-node.
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.
Trap categories for this question
Command / output trap
Kernel patches often require reboot; Run Command can't avoid reboot.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which PAS-C01 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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Operations and Maintenance — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Operations and Maintenance — This question tests Operations and Maintenance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use HANA scale-out to move services to other nodes, then reboot each node sequentially. — Option C is correct because in a HANA multi-node cluster, you can leverage HANA's scale-out capabilities to move services (e.g., using HANA system replication or failover) to other nodes, then reboot each node sequentially. This minimizes downtime as the database remains available through the other nodes. Option A is incorrect because AWS Systems Manager Run Command can apply the patch, but if a reboot is required, it will still need a reboot, causing downtime. Option B is incorrect because rebooting all nodes simultaneously will cause complete downtime. Option D is incorrect because creating a new EC2 instance and updating DNS introduces complexity, potential connectivity issues, and is not a standard approach for HANA clusters; it also does not leverage HANA's built-in high availability features.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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