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Given a target group with 3 registered targets, two healthy and one unhealthy, how will the load balancer route traffic?

medium📝 service behavior Q13 of 15
AWS - Elastic Load Balancing
Given a target group with 3 registered targets, two healthy and one unhealthy, how will the load balancer route traffic?
AIt sends traffic only to the two healthy targets
BIt sends traffic equally to all three targets
CIt sends traffic only to the unhealthy target
DIt stops sending traffic until all targets are healthy
Step-by-Step Solution
Solution:

  1. Step 1: Understand health check impact

    Load balancers route traffic only to targets marked healthy by health checks.

  2. Step 2: Apply to given targets

    With two healthy and one unhealthy, traffic goes only to the two healthy targets.

  3. Final Answer:

    It sends traffic only to the two healthy targets -> Option A

  4. Quick Check:

    Traffic routes only to healthy targets [OK]
Quick Trick: Load balancer skips unhealthy targets [OK]
Common Mistakes:
MISTAKES
  • Assuming traffic goes to all targets regardless of health
  • Thinking traffic stops if any target is unhealthy
  • Confusing unhealthy targets with backup targets

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