- A
Stop all HANA nodes, patch the OS on each node, then start them all together.
Why wrong: This causes full downtime.
- B
Create new EC2 instances from a patched AMI and terminate the old ones.
Why wrong: This involves significant effort and potential data loss.
- C
Use AWS Systems Manager Patch Manager to apply patches to all nodes simultaneously.
Why wrong: Simultaneous patching can cause cluster instability.
- D
Use a rolling patching strategy: patch one node at a time after isolating it from the HANA cluster.
Rolling updates minimize downtime by maintaining cluster availability.
Question 1,267 of 1,733
How to Patch SAP HANA Nodes with Minimal Downtime
This PAS-C01 practice question tests your understanding of operations and maintenance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 is using SAP HANA in a multi-node scale-out configuration on AWS. The operations team needs to automate the patching of the operating system on all nodes with minimal downtime. Which approach is most suitable?
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 a rolling patching strategy: patch one node at a time after isolating it from the HANA cluster.
A rolling patching strategy, where one node is isolated from the HANA cluster, patched, then reintegrated before moving to the next, minimizes downtime. Option D is correct because it avoids full cluster outage. Option A is wrong because stopping all nodes causes complete downtime. Option B is wrong because creating new instances from a patched AMI requires data reload and may not be seamless for a scale-out HANA cluster. Option C is wrong because applying patches to all nodes simultaneously can cause cluster instability or downtime due to lack of coordination.
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.
- ✗
Stop all HANA nodes, patch the OS on each node, then start them all together.
Why it's wrong here
This causes full downtime.
- ✗
Create new EC2 instances from a patched AMI and terminate the old ones.
Why it's wrong here
This involves significant effort and potential data loss.
- ✗
Use AWS Systems Manager Patch Manager to apply patches to all nodes simultaneously.
Why it's wrong here
Simultaneous patching can cause cluster instability.
- ✓
Use a rolling patching strategy: patch one node at a time after isolating it from the HANA cluster.
Why this is correct
Rolling updates minimize downtime by maintaining cluster availability.
Related concept
Read the scenario before looking for a memorised answer.
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
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
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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 a rolling patching strategy: patch one node at a time after isolating it from the HANA cluster. — A rolling patching strategy, where one node is isolated from the HANA cluster, patched, then reintegrated before moving to the next, minimizes downtime. Option D is correct because it avoids full cluster outage. Option A is wrong because stopping all nodes causes complete downtime. Option B is wrong because creating new instances from a patched AMI requires data reload and may not be seamless for a scale-out HANA cluster. Option C is wrong because applying patches to all nodes simultaneously can cause cluster instability or downtime due to lack of coordination.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Same concept, more angles
1 more ways this is tested on PAS-C01
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. 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?
hard- A.Use AWS Systems Manager Run Command to apply the patch without reboot.
- B.Reboot all nodes simultaneously during the maintenance window.
- ✓ C.Use HANA scale-out to move services to other nodes, then reboot each node sequentially.
- D.Create a new EC2 instance with the patch applied, then update DNS to point to the new instance.
Why C: 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.
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Last reviewed: Jun 20, 2026
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