A business needs to maintain performance during sudden traffic spikes while minimizing costs. Which auto scaling approach best meets this requirement?

hard📝 Architecture Q8 of 15

AWS - Auto Scaling

AUse scheduled scaling to add instances only during known peak hours

BSet aggressive scale-out policies with high cooldown periods

CKeep a fixed number of instances running at all times

DImplement dynamic scaling based on real-time metrics with balanced thresholds

Step-by-Step Solution

Solution:

Step 1: Understand requirements
Need to handle sudden spikes and minimize costs.
Step 2: Evaluate options
Scheduled scaling (A) only works for predictable spikes, not sudden ones.
Step 3: Consider aggressive policies (B)
High cooldowns delay scaling, hurting performance.
Step 4: Fixed instances (D)
Increases cost without flexibility.
Step 5: Dynamic scaling (C)
Adjusts resources in real-time, balancing cost and performance.
Final Answer:
Implement dynamic scaling based on real-time metrics with balanced thresholds -> Option D
Quick Check:
Dynamic scaling balances cost and performance [OK]

Quick Trick: Dynamic scaling adapts to real-time demand [OK]

Common Mistakes:

Relying only on scheduled scaling for unpredictable spikes
Using long cooldowns that delay scaling
Keeping fixed capacity regardless of load

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More AWS Quizzes

A business needs to maintain performance during sudden traffic spikes while minimizing costs. Which auto scaling approach best meets this requirement?

Step 1: Understand requirements

Step 2: Evaluate options

Step 3: Consider aggressive policies (B)

Step 4: Fixed instances (D)

Step 5: Dynamic scaling (C)

Final Answer:

Quick Check:

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