PAS-C01 Design of SAP Workloads on AWS Practice Question
A company runs SAP S/4HANA on AWS using a distributed architecture with separate instances for the database (DB) and application (ASCS, PAS, AAS). The application servers are in an Auto Scaling group. After a recent scaling event, users report that they cannot log in to the system. The SAP dispatcher logs show that the application servers cannot connect to the message server. What is the most likely cause?
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
✓
The new application servers are not registered in the SAP message server's configuration.
The most likely cause is that the new application servers launched by the Auto Scaling group are not registered in the SAP message server's configuration. In a distributed SAP system, each application server must be registered with the message server so that it can accept user logons and communicate with other components. If registration is missing, the dispatcher cannot connect to the message server, resulting in login failures. Option A (database connection string) would cause database connectivity issues, not message server issues. Option C (licenses) would affect logons globally, not just after scaling. Option D (security group outbound) would block all traffic, not specifically message server traffic.
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 database connection string in the new application servers points to the wrong endpoint.
Why it's wrong here
DB connection is separate from message server connection.
- ✓
The new application servers are not registered in the SAP message server's configuration.
Why this is correct
Auto Scaling instances must be registered in the SAP profile to communicate with the message server.
- ✗
The SAP licenses are exhausted and need to be updated.
Why it's wrong here
License issues usually cause warning but not complete login failure.
- ✗
The security group of the application servers is not allowing outbound traffic to the DB server.
Why it's wrong here
Issue is with message server, not DB.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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