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Question 1,671 of 1,733

Technology →hardMultiple ChoiceObjective-mapped

SAP EFS Multi-AZ Mount Targets for Failover

This PAS-C01 practice question tests your understanding of technology. 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.

You are managing an SAP S/4HANA system on AWS. The system uses a multi-AZ deployment with two application servers (one in us-east-1a, one in us-east-1b) and a HANA database in us-east-1a with a standby in us-east-1b using HSR. The /sapmnt and /usr/sap/trans are on an EFS file system. Recently, you noticed that during a failover test of the HANA database, the application servers lost connectivity to the database for several minutes, causing errors. You also observed that after the failover, the application servers could not reconnect until the EFS mount was remounted. What is the most likely cause and solution?

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.

A
Increase the provisioned throughput on the EFS file system to handle the increased load during failover.
Why wrong: Throughput is not the issue; connectivity loss is due to mount target resolution.
B
Migrate the shared file systems to Amazon FSx for NetApp ONTAP with multi-AZ deployment.
Why wrong: While this could be a long-term solution, it does not address the immediate cause of the disconnection.
C
Configure EFS mount targets in each AZ and use an EFS access point with a consistent mount path.
This ensures that after failover, the application servers can mount the file system using the access point that resolves in the AZ.
D
Reconfigure SAP HANA System Replication to use synchronous replication.
Why wrong: Replication mode does not affect file system connectivity.

Full breakdown with real-world context →

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

✓

Configure EFS mount targets in each AZ and use an EFS access point with a consistent mount path.

The issue is that during a HANA database failover, the application servers lost connectivity and could not reconnect until the EFS mount was remounted. This indicates that the EFS mount targets are not properly configured for multi-AZ access. When the database fails over to the standby in us-east-1b, the application servers may be trying to access the EFS file system through a mount target that is only in us-east-1a, or the DNS resolution leads to a mount target in the wrong AZ, causing connectivity loss. Option C is correct because configuring EFS mount targets in each AZ and using an EFS access point with a consistent mount path ensures that application servers in any AZ can reliably mount and access the shared file system without relying on cross-AZ connectivity. Option A (increase EFS throughput) does not address connectivity issues during failover. Option B (migrate to FSx for ONTAP) is not the immediate solution and may be unnecessary. Option D (synchronous replication) does not fix the EFS connectivity problem.

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.

✗
Increase the provisioned throughput on the EFS file system to handle the increased load during failover.
Why it's wrong here
Throughput is not the issue; connectivity loss is due to mount target resolution.
✗
Migrate the shared file systems to Amazon FSx for NetApp ONTAP with multi-AZ deployment.
Why it's wrong here
While this could be a long-term solution, it does not address the immediate cause of the disconnection.
✓
Configure EFS mount targets in each AZ and use an EFS access point with a consistent mount path.
Why this is correct
This ensures that after failover, the application servers can mount the file system using the access point that resolves in the AZ.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Reconfigure SAP HANA System Replication to use synchronous replication.
Why it's wrong here
Replication mode does not affect file system connectivity.

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

A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.

Visual reference

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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FAQ

Questions learners often ask

What does this PAS-C01 question test?

Technology — This question tests Technology — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Configure EFS mount targets in each AZ and use an EFS access point with a consistent mount path. — The issue is that during a HANA database failover, the application servers lost connectivity and could not reconnect until the EFS mount was remounted. This indicates that the EFS mount targets are not properly configured for multi-AZ access. When the database fails over to the standby in us-east-1b, the application servers may be trying to access the EFS file system through a mount target that is only in us-east-1a, or the DNS resolution leads to a mount target in the wrong AZ, causing connectivity loss. Option C is correct because configuring EFS mount targets in each AZ and using an EFS access point with a consistent mount path ensures that application servers in any AZ can reliably mount and access the shared file system without relying on cross-AZ connectivity. Option A (increase EFS throughput) does not address connectivity issues during failover. Option B (migrate to FSx for ONTAP) is not the immediate solution and may be unnecessary. Option D (synchronous replication) does not fix the EFS connectivity problem.

What should I do if I get this PAS-C01 question wrong?

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?

Read the scenario before looking for a memorised answer.

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