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Which method will help improve performance of your application?

You have an application running on an Amazon Elastic Compute Cloud instance, that uploads 5 GB video
objects to Amazon Simple Storage Service (S3). Video uploads are taking longer than expected, resulting in
poor application performance. Which method will help improve performance of your application?

PrepAway - Latest Free Exam Questions & Answers

A.
Enable enhanced networking

B.
Use Amazon S3 multipart upload

C.
Leveraging Amazon CloudFront, use the HTTP POST method to reduce latency.

D.
Use Amazon Elastic Block Store Provisioned IOPs and use an Amazon EBS-optimized instance

22 Comments on “Which method will help improve performance of your application?

    1. felipe says:

      Agree
      The Multipart upload API enables you to upload large objects in parts. You can use this API to upload new large objects or make a copy of an existing object (see Operations on Objects).




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  1. Harsh Wardhan says:

    I will go with A..”Poor application performance”

    Amazon EC2 provides enhanced networking capabilities using single root I/O virtualization (SR-IOV) on supported instance types. Enabling enhanced networking on your instance results in higher performance (packets per second), lower latency, and lower jitter.




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  2. Gautam says:

    IMHO, answer should be A, only enhanced networking can increase the speed of the upload which is the problem set.

    I do not understand how answer can be ‘B’ can improve the speed of the upload, its only used if the filesize is bigger.




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    1. mutiger91 says:

      Enhanced networking doesn’t really do anything to solve for latency on the WAN. Multi-part upload let’s you parallelize the process and be moving multiple chunks together so that if one process is waiting for an ACK, another can be shipping data and keeping the pipe full.




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  3. Saad says:

    B is the answer because of the following (pay attention to the word parallel ):

    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.

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




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