Cloud & DevOps · Question 9 · Medium
Adding two more identical application servers behind a load balancer to handle increased traffic is an example of:
- Vertical scaling (scaling up)
- Increasing the instance size
- Horizontal scaling (scaling out)
- Disaster recovery failover
Answer and explanation
Answer: C. Horizontal scaling (scaling out)
Explanation: Adding more instances is horizontal scaling. Giving one machine more CPU or RAM is vertical scaling.
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