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You want to configure an Application Load Balancer to terminate SSL and then re-encrypt traffic to backend instances using HTTPS. Which configuration is correct?

hard📝 Application Q8 of 15
AWS - Elastic Load Balancing
You want to configure an Application Load Balancer to terminate SSL and then re-encrypt traffic to backend instances using HTTPS. Which configuration is correct?
AListener protocol HTTPS on port 443 without SSL certificate; target group protocol HTTP on port 80
BListener protocol HTTPS on port 443 with SSL certificate; target group protocol HTTPS on port 443
CListener protocol HTTP on port 80; target group protocol HTTP on port 80
DListener protocol TCP on port 443; target group protocol TCP on port 80
Step-by-Step Solution
Solution:
  1. Step 1: Configure listener for SSL termination

    Listener must be HTTPS on port 443 with SSL certificate to terminate SSL.
  2. Step 2: Configure target group for re-encryption

    Target group must use HTTPS on port 443 to re-encrypt traffic to backend.
  3. Final Answer:

    Listener protocol HTTPS on port 443 with SSL certificate; target group protocol HTTPS on port 443 -> Option B
  4. Quick Check:

    Terminate and re-encrypt = HTTPS listener + HTTPS target [OK]
Quick Trick: Use HTTPS both listener and target for re-encryption [OK]
Common Mistakes:
MISTAKES
  • Skipping SSL certificate on listener
  • Using HTTP on target group when re-encryption needed
  • Confusing TCP with HTTPS protocols

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