Question 190
For the following requirement, which AWS concept gives the most accurate explanation? A rendering service can resume its batch jobs after interruptions and wants low-cost spare EC2 capacity.
Explanation
Correct Answer
EC2 Spot Instances provide discounted spare capacity that AWS can interrupt when needed. The case involves: A rendering service can resume its batch jobs after interruptions and wants low-cost spare EC2 capacity. The central AWS principle is that eC2 Spot Instances provide discounted spare capacity that AWS can interrupt when needed. What matters is: Look for fault-tolerant and interruption-tolerant batch processing. Recommended direction: Use Spot capacity for eligible jobs with a tested retry or checkpoint strategy. Expected indication of success: Batch jobs can progress economically and restart when capacity is reclaimed. Caveat: Spot capacity availability and interruption behavior cannot be guaranteed.
Incorrect Answers
AWS Savings Plans can provide discounts in exchange for a qualifying hourly spend commitment. That addresses a different mechanism; this question turns on EC2 Spot Instances provide discounted spare capacity that AWS.
EC2 Capacity Reservations reserve matching On-Demand instance capacity in a specified Availability Zone. In the present case the governing issue is EC2 Spot Instances provide discounted spare capacity that AWS, which this does not resolve.
Data transfer out of AWS can incur charges that differ from inbound transfer pricing. It does not verify the requested outcome; here the decisive check concerns EC2 Spot Instances provide discounted spare capacity that AWS.