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Why is terminating SSL/TLS at the AWS load balancer preferred over terminating it on backend instances in large-scale architectures?

hard📝 Conceptual Q10 of 15
AWS - Elastic Load Balancing
Why is terminating SSL/TLS at the AWS load balancer preferred over terminating it on backend instances in large-scale architectures?
AIt centralizes certificate management and reduces CPU load on backend servers
BIt forces all traffic to use HTTP, improving performance
CIt eliminates the need for SSL certificates entirely
DIt allows backend instances to handle encryption, improving security
Step-by-Step Solution
Solution:
  1. Step 1: Understand benefits of SSL termination at load balancer

    Centralized certificate management simplifies updates and renewals.
  2. Step 2: Performance considerations

    Offloading SSL decryption reduces CPU usage on backend instances.
  3. Step 3: Security and traffic flow

    SSL termination does not eliminate certificates; it centralizes them.
  4. Final Answer:

    It centralizes certificate management and reduces CPU load on backend servers -> Option A
  5. Quick Check:

    Centralized SSL termination reduces backend load [OK]
Quick Trick: Centralized SSL termination reduces backend CPU and simplifies certs [OK]
Common Mistakes:
MISTAKES
  • Thinking SSL termination removes need for certificates
  • Believing backend encryption always improves performance
  • Assuming SSL termination forces HTTP traffic

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