Answer-first summary for fast verification
Answer: On-Demand
## Explanation For short-term workloads (6 months in this case), **On-Demand Instances** are the most cost-effective option because: - **Spot Instances** are suitable for fault-tolerant, flexible workloads but can be interrupted with short notice - **Reserved Instances** (both No Upfront and Partial Upfront) require 1-3 year commitments to achieve cost savings - **On-Demand Instances** provide maximum flexibility with no long-term commitment, making them ideal for short-term projects Since the requirement is only for 6 months, the discount from Reserved Instances wouldn't justify the upfront commitment, and Spot Instances carry interruption risks that may not be acceptable for production workloads.
Author: Ritesh Yadav
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There is a requirement hosting a set of servers in the Cloud for a short period of 6 months. Which of the following types of instances should be chosen to be cost effective.
A
Spot Instances
B
On-Demand
C
No Upfront costs Reserved
D
Partial Upfront costs Reserved
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