The answer is that the Elastic IP is not reassigned during the failover process, which is the most likely cause of the secondary instance failing to take over. In a properly configured SAP HA multi-AZ deployment on AWS, a failover script or automation—such as a custom script or AWS Elastic Beanstalk—must explicitly detach the Elastic IP from the primary instance and reattach it to the secondary instance. If this reassignment step is missing or fails, the Elastic IP remains bound to the primary, leaving the secondary unreachable despite being healthy. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of the difference between compute failover and network-level failover; a common trap is assuming that simply starting the secondary instance will automatically transfer the IP. Remember: an Elastic IP is a static address, not a floating resource—it must be manually moved. Memory tip: “IPs don’t jump; scripts must push.”
PAS-C01 Operations and Maintenance Practice Question
This PAS-C01 practice question tests your understanding of operations and maintenance. 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.
An SAP system on AWS is configured with a multi-AZ deployment for high availability. During a failover test, the secondary instance does not take over as expected. The administrator checks the AWS Management Console and sees that the Elastic IP address is still attached to the primary instance. What 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.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The Elastic IP is not reassigned during the failover process
In a typical HA setup, the Elastic IP should be reassigned to the secondary instance during failover. If it remains attached to the primary, the secondary cannot be reached. The root device is not relevant to IP assignment. Route tables are not per-instance. Security groups allow traffic but do not prevent failover.
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.
✓
The Elastic IP is not reassigned during the failover process
Why this is correct
The Elastic IP must be moved to the secondary instance to maintain connectivity.
Clue confirmation
The clue words "most likely", "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The secondary instance's root volume is not attached
Why it's wrong here
Root volume attachment is unrelated to Elastic IP assignment.
✗
The security group of the secondary instance blocks incoming traffic
Why it's wrong here
Security groups control access but do not affect Elastic IP association.
✗
The route tables are not updated to point to the secondary instance
Why it's wrong here
Route tables direct traffic to subnets, not specific instances.
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.
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: The Elastic IP is not reassigned during the failover process — In a typical HA setup, the Elastic IP should be reassigned to the secondary instance during failover. If it remains attached to the primary, the secondary cannot be reached. The root device is not relevant to IP assignment. Route tables are not per-instance. Security groups allow traffic but do not prevent failover.
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: "most likely", "primary". 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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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. An SAP system on AWS is configured with a Multi-AZ deployment for high availability. During a failover test, the operations team notices that the secondary instance does not take over correctly. What is the most likely cause?
easy
A.The SAP application layer is not configured to retry connections.
B.The CloudWatch alarm thresholds for failover are set too high.
✓ C.The route tables or security groups do not allow traffic to the secondary instance.
D.The secondary instance's IP address is not automatically updated in DNS.
Why C: Option B is correct because incorrect DNS resolution or routing can prevent the secondary instance from being reachable after failover. Option A is wrong because Multi-AZ automatically handles IP changes if configured properly. Option C is wrong because application layer misconfiguration may not affect the failover itself. Option D is wrong because CloudWatch alarms do not control failover.
Last reviewed: Jun 20, 2026
Question Discussion
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This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.
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