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How can combining auto scaling with load balancing improve application availability?

hard📝 Application Q9 of 15
AWS - Auto Scaling
How can combining auto scaling with load balancing improve application availability?
ALoad balancer encrypts data; auto scaling backs up instances
BAuto scaling replaces load balancer to reduce costs
CLoad balancer distributes traffic; auto scaling adds instances as needed
DLoad balancer monitors CPU; auto scaling monitors disk space
Step-by-Step Solution
Solution:

  1. Step 1: Understand roles of load balancer and auto scaling

    Load balancer spreads traffic; auto scaling adjusts instance count.

  2. Step 2: Match combined effect on availability

    Together they ensure traffic is balanced and capacity matches demand.

  3. Final Answer:

    Load balancer distributes traffic; auto scaling adds instances as needed -> Option C

  4. Quick Check:

    Combined effect improves availability = Load balancer distributes traffic; auto scaling adds instances as needed [OK]
Quick Trick: Load balancer + auto scaling = balanced traffic and capacity [OK]
Common Mistakes:
  • Confusing load balancer with encryption
  • Thinking auto scaling replaces load balancer
  • Mixing monitoring roles incorrectly

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