PAS-C01 Design of SAP Workloads on AWS Practice Question
An SAP system on AWS uses an Application Load Balancer (ALB) to distribute traffic to multiple SAP Web Dispatchers. The system is experiencing intermittent session drops. What is the most likely cause?
⚠ Common exam trap
Many exam-takers confuse health check intervals or cross-zone load balancing with session persistence, assuming that any routing issue must be caused by target availability or distribution, rather than recognizing that the ALB's default stateless behavior is the root cause of session drops in stateful SAP Web Dispatcher deployments.
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 ALB is not configured for sticky sessions.
The ALB operates at Layer 7 and, by default, distributes each request independently across healthy targets. SAP Web Dispatchers maintain user session state (e.g., logon tickets, application context) locally. Without sticky sessions (session affinity) enabled on the ALB, subsequent requests from the same user can be routed to a different Web Dispatcher, causing the new dispatcher to lack the session context and dropping the user's session. Enabling stickiness based on the ALB-generated cookie ensures all requests from a session are sent to the same Web Dispatcher, preventing these intermittent drops.
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 ALB is not configured for sticky sessions.
Why this is correct
Without sticky sessions, subsequent requests may go to different Web Dispatchers, breaking session state.
- ✗
The ALB deletion protection is enabled.
Why it's wrong here
Deletion protection does not affect running traffic.
- ✗
The ALB health check interval is too short.
Why it's wrong here
Short health checks may mark instances unhealthy temporarily, but not typical cause.
- ✗
Cross-zone load balancing is not enabled on the ALB.
Why it's wrong here
Cross-zone LB affects distribution, not session persistence.
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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.