You are building an automated transcription service in which Amazon EC2 worker instances process an
uploaded audio file and generate a text file. You must store both of these files in the same durable storage
until the text file is retrieved. You do not know what the storage capacity requirements are. Which storage
option is both cost-efficient and scalable?
A.
Multiple Amazon EBS volume with snapshots
B.
A single Amazon Glacier vault
C.
A single Amazon S3 bucket
D.
Multiple instance stores
C
0
1
Correct answer is C
0
0
answer is c
0
0
I would take B
Glacier vault is much more cost-efficient than Amazon S3 and the question
never mention about latency, hence B is my best guess.
“A single archive can be as large as 40 terabytes. You can store an UNLIMTED number of
archives and an UNLIMITED amount of data in Amazon Glacier.” – from Amazon Glacier Product Details.
1
0
Answer either B or C.
B – Amazon Vault is significant cheaper than S3, but limited storage up to 40 terabytes.
A – S3 is 4.3 times more expensive than Amazon Glacier, but unlimited storage.
It’s all depends on what is more important, storage sizes or the cost expenditure you have.
2
0
C
0
1
B is not the right answer because of its long retrieval time and there is nothing in the question that says retrieval time of several hours is suitable.
https://aws.amazon.com/glacier/
“Amazon Glacier is optimized for infrequently accessed data where a retrieval time of several hours is suitable.”
C is the right answer.
0
2
It cannot be B because the retrieval time is too large.
0
1
B
https://aws.amazon.com/glacier/
Use Cases
Media Asset Archiving
Media assets such as video and news footage require durable storage and can grow to many petabytes over time. Amazon Glacier allows you to archive older media content reliably and then move it to Amazon S3 for distribution when needed.
1
0
C
0
1