✅C. AWS Glacier
Glacier (now part of Amazon S3 Glacier) is a cold storage service designed for long-term data archiving at low cost. It's a true AWS storage service.
✅ D. AWS Import/Export
AWS Import/Export (now largely replaced by AWS Snowball) is a data transport service that enables you to move large amounts of data into or out of AWS storage (like Amazon S3 or Glacier). It is part of the AWS storage ecosystem, facilitating bulk data transfer to storage services.
❌ Why the others are incorrect:
A. AWS RDS – This is a managed database service, not a storage service, even though it stores data.
B. AWS ElastiCache – This is an in-memory caching service, not used for long-term or durable storage.
The two AWS Storage services among the options provided are:
C. AWS Glacier – AWS Glacier (now known as Amazon S3 Glacier) is a long-term storage service optimized for data archiving and backup.
D. AWS Import/Export – AWS Import/Export (now part of AWS Snowball) enables data transfer between on-premises storage and AWS storage services, effectively aiding in data migration and backup.
Explanation of Other Options:
A. AWS Relational Database Service (AWS RDS) is a managed database service, not specifically for storage.
B. AWS ElastiCache is a caching service used to improve performance for read-heavy workloads by caching data, rather than being a primary storage solution.
So the correct answers are C and D.
The two AWS Storage services among the options provided are:
C. AWS Glacier – AWS Glacier (now known as Amazon S3 Glacier) is a long-term storage service optimized for data archiving and backup.
D. AWS Import/Export – AWS Import/Export (now part of AWS Snowball) enables data transfer between on-premises storage and AWS storage services, effectively aiding in data migration and backup.
Explanation of Other Options:
A. AWS Relational Database Service (AWS RDS) is a managed database service, not specifically for storage.
B. AWS ElastiCache is a caching service used to improve performance for read-heavy workloads by caching data, rather than being a primary storage solution.
So the correct answers are C and D.
I chose A and C before checking https://aws.amazon.com/products/storage/.
All of them can store data. I eliminated D first as import/Export WAS storage TRANSFERRing service but exists in AWS; then eliminated ElasticCache, which is an in-memory cache service. So the remaining are A and C.
After checking https://aws.amazon.com/products/storage/, I think snowball's ancestor Import/Export is a better choice over RDS, which is a database service.
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