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You want to handle sudden traffic spikes without slowing your app. Which load balancing setup helps best?

hard📝 Best Practice Q15 of 15
AWS - Elastic Load Balancing
You want to handle sudden traffic spikes without slowing your app. Which load balancing setup helps best?
AUse a load balancer with multiple target groups and auto-scaling EC2 instances
BUse a single EC2 instance behind a load balancer
CUse only one target group with fixed number of instances
DDisable load balancer and rely on DNS round robin
Step-by-Step Solution
Solution:
  1. Step 1: Understand traffic spike handling

    Handling spikes requires scaling resources automatically to meet demand.
  2. Step 2: Match setup to scaling needs

    Using a load balancer with multiple target groups and auto-scaling EC2 instances allows dynamic resource adjustment and balanced traffic.
  3. Final Answer:

    Use a load balancer with multiple target groups and auto-scaling EC2 instances -> Option A
  4. Quick Check:

    Auto-scaling + load balancer = handle spikes [OK]
Quick Trick: Combine load balancer with auto-scaling for spikes [OK]
Common Mistakes:
MISTAKES
  • Relying on single instance for heavy traffic
  • Using fixed instances without scaling
  • Disabling load balancer reduces reliability

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