The correct choice is to automatically register new instances with the SAP Central Services instance because SAP application servers must be recognized by the ASCS or SCS to join the SAP system and handle workload. Without this registration—typically handled by sapstartsrv or the SAP Host Agent—a newly launched Auto Scaling instance remains isolated, unable to communicate with Central Services or process user requests. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding that Auto Scaling alone only manages EC2 capacity; the critical SAP-specific step is the post-launch integration with Central Services. A common trap is assuming that simply joining the instance to the network or security group is sufficient, but SAP requires explicit registration at the application layer. Memory tip: think of Central Services as the SAP system’s “phone switchboard”—a new server must dial in and get a directory listing before it can take any calls.
PAS-C01 Design of SAP Workloads on AWS Practice Question
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 planning to run SAP NetWeaver on AWS and wants to use Auto Scaling for the application server tier. Which consideration is critical when implementing Auto Scaling for SAP application servers?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Automatically register new instances with the SAP Central Services instance.
Option D is correct because SAP application servers must be registered with the SAP Central Services instance (ASCS/SCS) to be recognized as part of the SAP system. Auto Scaling can launch new instances, but without automatic registration via sapstartsrv or the SAP Host Agent, the new instances will not be able to communicate with the Central Services instance, and the SAP system will not utilize them for workload.
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.
✗
Ensure the database can scale automatically with the application tier.
Why it's wrong here
Database scaling is independent and usually not scaled automatically with app servers.
✗
Enable termination protection on all Auto Scaling instances.
Why it's wrong here
Termination protection is not an SAP-specific requirement.
✗
Use encrypted EBS volumes for all instances.
Why it's wrong here
Encryption is a security best practice but not critical for Auto Scaling functionality.
✓
Automatically register new instances with the SAP Central Services instance.
Why this is correct
New app servers must be registered with ASCS to join the SAP system.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often focus on infrastructure-level concerns like encryption or termination protection, overlooking the application-level dependency that SAP application servers must be explicitly registered with Central Services to function as part of the SAP system.
Detailed technical explanation
How to think about this question
When a new SAP application server instance is launched, it must be registered with the SAP Central Services instance using the SAP profile parameter `SAPSYSTEMNAME` and the `sapstartsrv` process, which communicates via the SAP Message Server (port 36xx). Without this registration, the new instance will not appear in the SAP system's logon group and will not receive user connections, rendering the Auto Scaling group ineffective. In a real-world scenario, you would use a custom bootstrap script or AWS Systems Manager to call `sapcontrol -nr <instance_number> -function Start` and ensure the instance is properly joined to the SAP system.
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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Automatically register new instances with the SAP Central Services instance. — Option D is correct because SAP application servers must be registered with the SAP Central Services instance (ASCS/SCS) to be recognized as part of the SAP system. Auto Scaling can launch new instances, but without automatic registration via sapstartsrv or the SAP Host Agent, the new instances will not be able to communicate with the Central Services instance, and the SAP system will not utilize them for workload.
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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Question Discussion
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