Exam AWS Certified Big Data - Specialty topic 1 question 56 discussion

Exam question from Amazon's AWS Certified Big Data - Specialty

Question #: 56
Topic #: 1

[All AWS Certified Big Data - Specialty Questions]

A company generates a large number of files each month and needs to use AWS import/export to move these files into Amazon S3 storage. To satisfy the auditors, the company needs to keep a record of which files were imported into Amazon S3.
What is a low-cost way to create a unique log for each import job?

A. Use the same log file prefix in the import/export manifest files to create a versioned log file in Amazon S3 for all imports.
B. Use the log file prefix in the import/export manifest files to create a unique log file in Amazon S3 for each import.
C. Use the log file checksum in the import/export manifest files to create a unique log file in Amazon S3 for each import.
D. Use a script to iterate over files in Amazon S3 to generate a log after each import/export job.

Show Suggested Answer

Suggested Answer: B 🗳️

by Hitu at Sept. 10, 2019, 11:37 p.m.

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Comments

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jack870005

Highly Voted 3 years, 9 months ago

B is correct. Refer to https://aws.amazon.com/cn/blogs/aws/send-us-that-data/ - check the screenshots listed in the article. During manifest file creation we can specify "log file prefix"

upvoted 9 times

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san2020

Highly Voted 3 years, 9 months ago

my selection B

upvoted 7 times

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exams

Most Recent 3 years, 10 months ago

Thoughts b?

upvoted 1 times

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Hitu

3 years, 10 months ago

Any thoughts on C?

upvoted 1 times

apertus

3 years, 10 months ago

checksum is already included in the log file : https://aws.amazon.com/cn/blogs/aws/send-us-that-data/

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Corram

3 years, 9 months ago

Think C should actually work in practice. Howeer, two theoritcal issues come to my mind: 1. MD5 hashes could coincide accidentally, but chances for that are really, reaaaaally low. 2. MD5 hashes would also coincide if you sent the same log files twice (why would you tho). Overall, why provide cryptographic file names when you can just specify a log file prefix instead. B is better.

upvoted 2 times

Corram

3 years, 9 months ago

(checksums = MD5 hashes)

upvoted 1 times

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