PAS-C01 Technology Practice Question
Exhibit
{"content":"Refer to the exhibit.\n\n```\n{\n \"AWSTemplateFormatVersion\": \"2010-09-09\",\n \"Resources\": {\n \"SAPApplicationELB\": {\n \"Type\": \"AWS::ElasticLoadBalancingV2::LoadBalancer\",\n \"Properties\": {\n \"Name\": \"sap-app-elb\",\n \"Scheme\": \"internet-facing\",\n \"Subnets\": [\n \"subnet-12345678\",\n \"subnet-23456789\"\n ],\n \"SecurityGroups\": [\n \"sg-12345678\"\n ]\n }\n },\n \"SAPTargetGroup\": {\n \"Type\": \"AWS::ElasticLoadBalancingV2::TargetGroup\",\n \"Properties\": {\n \"Name\": \"sap-tg\",\n \"Port\": 443,\n \"Protocol\": \"HTTPS\",\n \"VpcId\": \"vpc-12345678\",\n \"TargetType\": \"instance\"\n }\n }\n }\n}\n```","description":"CloudFormation snippet for ALB"}Refer to the exhibit. An SAP application load balancer (ALB) is configured with the CloudFormation snippet. The ALB is not distributing traffic to the EC2 instances. 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 target group is not associated with the load balancer
The snippet does not include a listener for the ALB. Without a listener, the ALB cannot accept traffic. The target group is defined but not associated with the ALB via a listener rule. The scheme is internet-facing, which is correct. The security group may allow traffic, but no listener exists.
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 security group does not allow inbound traffic
Why it's wrong here
The security group is defined but not the primary issue; no listener exists.
- ✗
The target type is instance but the instances are not registered
Why it's wrong here
Instances can be registered later; without a listener, no traffic flows.
- ✓
The target group is not associated with the load balancer
Why this is correct
A listener is needed to associate the target group; missing listener prevents traffic distribution.
- ✗
The load balancer scheme is internet-facing but instances are in private subnets
Why it's wrong here
The scheme does not prevent traffic distribution if routing is correct.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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