PAS-C01 Design of SAP Workloads on AWS Practice Question
A company runs SAP Business Suite on AWS. They notice that their SAP application servers are not evenly distributing load across multiple instances. They have configured an Application Load Balancer (ALB) in front of the SAP Web Dispatchers. What is the MOST likely cause of uneven load distribution?
⚠ Common exam trap
Many exam-takers assume sticky sessions are always beneficial for stateful applications, but they fail to recognize that sticky sessions directly contradict the goal of even load distribution by pinning clients to specific targets.
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
✓
Sticky sessions (session stickiness) are enabled on the ALB.
When sticky sessions (session stickiness) are enabled on an Application Load Balancer, the ALB uses a cookie to bind a client's session to a specific target (SAP Web Dispatcher). This prevents the load balancer from distributing subsequent requests from that client to other healthy targets, causing an uneven distribution of load across the SAP application servers, especially if a few clients generate a disproportionate number of requests.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Sticky sessions (session stickiness) are enabled on the ALB.
Why this is correct
Sticky sessions cause uneven distribution with long-lived sessions.
- ✗
The ALB health check interval is too short.
Why it's wrong here
Health check interval doesn't cause uneven distribution.
- ✗
Cross-zone load balancing is enabled.
Why it's wrong here
Cross-zone balancing helps distribution.
- ✗
The ALB is using the least outstanding requests routing algorithm.
Why it's wrong here
That algorithm balances based on pending requests, not uneven.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.