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Which AWS Elastic Load Balancer component uses health checks to determine the availability of registered targets?

easy📝 Conceptual Q1 of 15
AWS - Elastic Load Balancing
Which AWS Elastic Load Balancer component uses health checks to determine the availability of registered targets?
ASecurity group
BTarget group
CListener
DSubnet
Step-by-Step Solution
Solution:
  1. Step 1: Identify the component responsible for health checks

    In AWS Elastic Load Balancer, health checks are performed on targets registered in a target group to determine their availability.
  2. Step 2: Understand roles of other components

    Security groups control traffic, listeners route requests, and subnets define network boundaries, but none perform health checks.
  3. Final Answer:

    Target group -> Option B
  4. Quick Check:

    Health checks monitor targets in target groups [OK]
Quick Trick: Health checks monitor targets in target groups [OK]
Common Mistakes:
MISTAKES
  • Confusing listeners with health check functionality
  • Assuming security groups perform health checks
  • Thinking subnets are involved in health checks

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