The correct answer includes sticky sessions (session affinity) enabled on the load balancer, along with a load balancer to distribute traffic and health checks to ensure only healthy instances receive requests. For session persistence and load balancing for SAP NetWeaver on AWS, sticky sessions bind a user’s session to a specific ABAP application server, preventing state loss when the load balancer routes traffic. Health checks are critical because they automatically remove unhealthy EC2 instances from the target group, while the load balancer itself handles traffic distribution across the Auto Scaling group. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this concept tests your understanding of how SAP’s stateless and stateful components interact with AWS elastic infrastructure—a common trap is confusing shared file systems or Multi-AZ database setups with application-layer session persistence. Remember the mnemonic “LASH”: Load balancer, Affinity (sticky sessions), and Server health checks are the three pillars for session persistence.
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. 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.
A company is designing a highly available SAP NetWeaver system on AWS. The architecture includes two EC2 instances running the ABAP application server in an Auto Scaling group. Which THREE components are required to maintain session persistence and distribute traffic? (Choose THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Health checks on the target group to detect unhealthy instances
Options A, B, and E are correct. Option A is correct because a load balancer distributes traffic. Option B is correct because sticky sessions (session affinity) ensure users stick to the same server. Option E is correct because health checks ensure only healthy instances receive traffic. Option C is wrong because a shared file system is not directly required for session persistence. Option D is wrong because Multi-AZ is for database, not application servers.
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.
✓
Health checks on the target group to detect unhealthy instances
Why this is correct
Health checks are essential to route traffic only to healthy instances.
Related concept
Read the scenario before looking for a memorised answer.
✗
A shared file system (e.g., Amazon EFS) for /sapmnt
Why it's wrong here
A shared file system is important for SAP but not for session persistence.
✓
An Application Load Balancer (ALB) or Network Load Balancer (NLB)
Why this is correct
A load balancer is needed to distribute incoming requests.
Related concept
Read the scenario before looking for a memorised answer.
✓
Sticky sessions (session affinity) enabled on the load balancer
Why this is correct
Sticky sessions ensure that a user's session is always routed to the same server.
Related concept
Read the scenario before looking for a memorised answer.
✗
A Multi-AZ deployment for the SAP application servers
Why it's wrong here
Multi-AZ is for high availability of the database, not required for session persistence.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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.
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: Health checks on the target group to detect unhealthy instances — Options A, B, and E are correct. Option A is correct because a load balancer distributes traffic. Option B is correct because sticky sessions (session affinity) ensure users stick to the same server. Option E is correct because health checks ensure only healthy instances receive traffic. Option C is wrong because a shared file system is not directly required for session persistence. Option D is wrong because Multi-AZ is for database, not application servers.
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.
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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.
Question Discussion
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