Questions 52 to 54
Explanations for questions 52 to 54
We'll cover the following
Question 52
A solutions architect is designing the disk configuration for an Amazon EC2 instance. The instance needs to support a MapReduce process that requires high throughput for a large dataset with large I/O sizes.
Which Amazon EBS volume is the most cost-effective solution for these requirements?
- EBS General Purpose SSD in a RAID 1 configuration
- EBS Throughput Optimized HDD
- EBS Provisioned IOPS SSD
- EBS General Purpose SSD
Correct Answer: 2
Explanation: EBS Throughput Optimized HDD is good for the following use cases (and is the most cost-effective option):
- Frequently accessed, throughput intensive workloads with large datasets and large I/O sizes, such as MapReduce, Kafka, log processing, data warehouse, and ETL workloads
Throughput is measured in MB/s and includes the ability to burst up to 250 MB/s per TB, with a baseline throughput of 40 MB/s per TB and a maximum throughput of 500 MB/s per volume.
INCORRECT: “EBS General Purpose SSD in a RAID 1 configuration” is incorrect. This is neither the best solution considering the requirements nor the most cost effective.
CORRECT: “EBS Throughput Optimized HDD” is the correct answer.
INCORRECT: “EBS Provisioned IOPS SSD” is incorrect. SSD disks are more expensive.
INCORRECT: “EBS General Purpose SSD” is incorrect. SSD disks are more expensive.
References: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-volume-types.html
Level up your interview prep. Join Educative to access 70+ hands-on prep courses.