PAS-C01 Technology Practice Question
An SAP system uses an Application Load Balancer (ALB) to distribute traffic to web servers. The ALB is configured with a health check that fails, causing the web servers to be marked as unhealthy. What is a possible reason for the health check failure?
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 web server is not configured to respond to the health check path
A common health check failure is when the health check path (e.g., /health) returns a non-200 status code. The security group allowing traffic from the ALB is required. Instance type does not affect health check. The subnet is not a direct cause.
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 instance is in a private subnet
Why it's wrong here
Private subnets are fine as long as the ALB can reach them.
- ✗
The instance type is not supported by the ALB
Why it's wrong here
ALB supports any instance type.
- ✗
The security group for the ALB does not allow outbound traffic
Why it's wrong here
ALB outbound traffic is not typically blocked; health checks are from ALB to instances.
- ✓
The web server is not configured to respond to the health check path
Why this is correct
If the health check path is not configured, the server returns an error.
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JA
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.