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Which AWS load balancer type supports cross-zone load balancing by default?

easy📝 Conceptual Q2 of 15
AWS - Elastic Load Balancing
Which AWS load balancer type supports cross-zone load balancing by default?
ANetwork Load Balancer
BClassic Load Balancer
CApplication Load Balancer
DGateway Load Balancer
Step-by-Step Solution
Solution:
  1. Step 1: Identify default cross-zone support

    Application Load Balancers have cross-zone load balancing enabled by default.
  2. Step 2: Check other load balancer types

    Classic Load Balancers require manual enabling, Network Load Balancers do not support it by default, Gateway Load Balancers do not use cross-zone balancing.
  3. Final Answer:

    Application Load Balancer -> Option C
  4. Quick Check:

    ALB cross-zone = enabled by default [OK]
Quick Trick: ALB has cross-zone enabled automatically [OK]
Common Mistakes:
MISTAKES
  • Assuming Classic Load Balancer has it enabled by default
  • Confusing Network Load Balancer behavior
  • Thinking Gateway Load Balancer uses cross-zone balancing

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