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You set up an AWS managed database but notice it is not scaling automatically. What is the most likely cause?

medium📝 Conceptual Q14 of 15
AWS - RDS and Relational Databases
You set up an AWS managed database but notice it is not scaling automatically. What is the most likely cause?
AThe database engine does not support backups
BAuto scaling is not enabled or configured
CYou did not create a security group
DThe database is running on EC2 instances
Step-by-Step Solution
Solution:
  1. Step 1: Check auto scaling settings

    Managed databases require auto scaling to be enabled to scale automatically.
  2. Step 2: Eliminate unrelated causes

    Backups support is unrelated to scaling; security groups control access; EC2 is not managed DB.
  3. Final Answer:

    Auto scaling is not enabled or configured -> Option B
  4. Quick Check:

    Auto scaling off means no scaling [OK]
Quick Trick: Auto scaling must be enabled for automatic scaling [OK]
Common Mistakes:
MISTAKES
  • Confusing backups with scaling
  • Ignoring security group role
  • Thinking EC2 is managed DB

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