Which of the following is not a benefit of using multipart uploads?

You have just discovered that you can upload your objects to Amazon S3 using Multipart Upload API. You start to test it out but are unsure of the benefits that it would provide.

Which of the following is not a benefit of using multipart uploads?
A .  You can begin an upload before you know the final object size.
B .  Quick recovery from any network issues.
C .  Pause and resume object uploads.
D .  It’s more secure than normal upload.

Answer: D


Multipart upload in Amazon S3 allows you to upload a single object as a set of parts. Each part is a contiguous portion of the object’s data. You can upload these object parts independently and in any order. If transmission of any part fails, you can re-transmit that part without affecting other parts. After all parts of your object are uploaded, Amazon S3 assembles these parts and creates the object. In general, when your object size reaches 100 MB, you should consider using multipart uploads instead of uploading the

object in a single operation.

Using multipart upload provides the following advantages:

Improved throughput―You can upload parts in parallel to improve throughput.

Quick recovery from any network issues―Smaller part size minimizes the impact of restarting a failed upload due to a network error.

Pause and resume object uploads―You can upload object parts over time. Once you initiate a multipart upload there is no expiry; you must explicitly complete or abort the multipart upload.

Begin an upload before you know the final object size―You can upload an object as you are creating it.

Reference: http://docs.aws.amazon.com/AmazonS3/latest/dev/uploadobjusingmpu.html

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