- A
Health checks on the target group to detect unhealthy instances
Health checks are essential to route traffic only to healthy instances.
- B
A shared file system (e.g., Amazon EFS) for /sapmnt
Why wrong: A shared file system is important for SAP but not for session persistence.
- C
An Application Load Balancer (ALB) or Network Load Balancer (NLB)
A load balancer is needed to distribute incoming requests.
- D
Sticky sessions (session affinity) enabled on the load balancer
Sticky sessions ensure that a user's session is always routed to the same server.
- E
A Multi-AZ deployment for the SAP application servers
Why wrong: Multi-AZ is for high availability of the database, not required for session persistence.
Question 364 of 1,733
PAS-C01 Technology Practice Question
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.
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 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
✓
Health checks on the target group to detect unhealthy instances
Health checks on the target group are required to detect unhealthy EC2 instances running the ABAP application server. When an instance fails a health check, the load balancer automatically stops routing traffic to it, ensuring that only healthy instances serve requests. This is critical for maintaining high availability in an SAP NetWeaver environment, as it prevents session failures caused by underlying instance issues.
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
The trap here is that candidates often confuse infrastructure components (like shared storage or Multi-AZ) with the specific mechanisms that enforce session persistence and traffic distribution, leading them to select options that are important for overall architecture but not directly required for the stated goal.
Detailed technical explanation
How to think about this question
Health checks in an Application Load Balancer (ALB) or Network Load Balancer (NLB) are performed at the target group level, using HTTP/HTTPS or TCP probes. For SAP NetWeaver, you can configure a custom health check path (e.g., /sap/public/ping) to verify the ABAP dispatcher is responsive. If an instance fails consecutive health checks (default is 5), it is marked unhealthy and deregistered, preventing new sessions from being routed to it while existing sessions may be drained based on connection draining settings.
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.
TExam Day Tips
- 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.
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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: Health checks on the target group to detect unhealthy instances — Health checks on the target group are required to detect unhealthy EC2 instances running the ABAP application server. When an instance fails a health check, the load balancer automatically stops routing traffic to it, ensuring that only healthy instances serve requests. This is critical for maintaining high availability in an SAP NetWeaver environment, as it prevents session failures caused by underlying instance issues.
What should I do if I get this PAS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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