AWS AWS Storage Solutions 2

Question 1

Which S3 storage class is most cost-effective for data accessed about once a year and that can tolerate a several-hour retrieval delay?

Accepted Answer

S3 Glacier Deep Archive

Answer

Glacier Deep Archive is the lowest-cost class for rarely accessed archival data tolerant of hours-long retrieval.

Question 2

What is the durability guarantee that Amazon S3 is designed to provide for objects across multiple Availability Zones?

Accepted Answer

99.999999999% (11 nines)

Answer

S3 is designed for 11 nines (99.999999999%) of durability by replicating across multiple AZs.

Question 3

Which EBS volume type is best suited for high-performance NoSQL and relational databases requiring sustained IOPS?

Accepted Answer

Provisioned IOPS SSD (io2)

Answer

Provisioned IOPS SSD (io2) delivers consistent, high IOPS for I/O-intensive database workloads.

Question 4

What does enabling S3 Versioning protect against?

Accepted Answer

Accidental overwrites and deletions

Answer

Versioning keeps multiple variants of an object so accidental overwrites or deletes can be recovered.

Question 5

Which AWS storage service provides a fully managed elastic NFS file system for Linux EC2 instances?

Accepted Answer

Amazon EFS

Answer

Amazon EFS is a managed, elastic NFS file system that multiple Linux instances can share.

AWS Practice Test