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Exam AWS Certified Solutions Architect - Professional topic 1 question 740 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional
Question #: 740
Topic #: 1
[All AWS Certified Solutions Architect - Professional Questions]

A company is running a distributed application on a set of Amazon EC2 instances in an Auto Scaling group. The application stores large amounts of data on an
Amazon Elastic File System (Amazon EFS) file system, and new data is generated monthly. The company needs to back up the data in a secondary AWS Region to restore from in case of a performance problem in its primary Region. The company has an RTO of 1 hour. A solutions architect needs to create a backup strategy while minimizing the extra cost.
Which backup strategy should the solutions architect recommend to meet these requirements?

  • A. Create a pipeline in AWS Data Pipeline. Copy the data to an EFS file system in the secondary Region. Create a lifecycle policy to move files to the EFS One Zone-Infrequent Access storage class.
  • B. Set up automatic backups by using AWS Backup. Create a copy rule to copy backups to an Amazon S3 bucket in the secondary Region. Create a lifecycle policy to move backups to the S3 Glacier storage class.
  • C. Set up AWS DataSync and continuously copy the files to an Amazon S3 bucket in the secondary Region. Create a lifecycle policy to move files to the S3 Glacier Deep Archive storage class.
  • D. Turn on EFS Cross-Region Replication and set the secondary Region as the target. Create a lifecycle policy to move files to the EFS Infrequent Access storage class in the secondary Region.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by gsw at April 30, 2021, 3 p.m.
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seyik
Highly Voted 2 years, 9 months ago
D, EFS cross-Region Replication is now possible with RTO of 15mins https://aws.amazon.com/blogs/aws/new-replication-for-amazon-elastic-file-system-efs/
upvoted 16 times
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WhyIronMan
Highly Voted 3 years, 1 month ago
I'll go with A By elimination: - B and C because of S3 Glacier will not attend the 1 hour RTO - D: there is no such thing "EFS Cross-Region Replication".... if you google it, everything points to AWS DataSync instead
upvoted 11 times
JohnPi
2 years, 2 months ago
https://aws.amazon.com/blogs/aws/new-replication-for-amazon-elastic-file-system-efs/
upvoted 1 times
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Amitst
Most Recent 1 year, 7 months ago
Selected Answer: D
Correct Answer is D D. Turn on EFS Cross-Region Replication and set the secondary Region as the target. Create a lifecycle policy to move files to the EFS Infrequent Access storage class in the secondary Region. Refer AWS updates: https://www.stratusgrid.com/open-space/an-intro-to-amazon-efs-replication?locale=en https://aws.amazon.com/about-aws/whats-new/2022/01/amazon-elastic-file-system-replication/
upvoted 1 times
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Amitst
1 year, 7 months ago
Correct Answer is D D. Turn on EFS Cross-Region Replication and set the secondary Region as the target. Create a lifecycle policy to move files to the EFS Infrequent Access storage class in the secondary Region. Refer AWS updates: https://www.stratusgrid.com/open-space/an-intro-to-amazon-efs-replication?locale=en https://aws.amazon.com/about-aws/whats-new/2022/01/amazon-elastic-file-system-replication/
upvoted 1 times
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Heer
1 year, 10 months ago
For those who have selected option B Yes, S3 Glacier with expedited retrieval can meet the RTO of 1 hour. With expedited retrieval, data retrieval can be completed within a few minutes. However, it should be noted that expedited retrieval is more expensive than standard retrieval, so there may be additional costs associated with using this option. So the right preferable answer seems to be Option D
upvoted 2 times
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janvandermerwer
2 years ago
Selected Answer: D
D - I agree with other comments. B - May be an option depending on what tier of glacier is being used - i.e instance retrieval, flexible retrieval: https://aws.amazon.com/s3/storage-classes/glacier/ C - Doesn't meet RTO of 1 hour (Glacier Deep Archive)
upvoted 1 times
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Ni_yot
2 years, 4 months ago
Change my ans to D. EFS cross region replication does exist. It depends on really when answered the question. As of Jan 2022 EFS CRR is a thing. https://aws.amazon.com/blogs/aws/new-replication-for-amazon-elastic-file-system-efs/
upvoted 1 times
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asfsdfsdf
2 years, 5 months ago
D should be the answer - RTO of 15 https://aws.amazon.com/blogs/aws/new-replication-for-amazon-elastic-file-system-efs/ before jan 2022 answer its A - Since C is for deep archive more than 1 hour, B you cant copy backup data to s3 only vaults, D wasn't exists before 2022 jan
upvoted 1 times
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Anhdd
2 years, 6 months ago
Selected Answer: D
anyone who choose A can tell me why One Zone - IA could be anh failover? I support for D
upvoted 1 times
Anhdd
2 years, 6 months ago
anyone who choose A can tell me why One Zone - IA could be a failover? I support for D - my typo sorry
upvoted 1 times
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hilft
2 years, 6 months ago
I go D
upvoted 1 times
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bobsmith2000
2 years, 6 months ago
Selected Answer: D
https://docs.aws.amazon.com/efs/latest/ug/efs-replication.html
upvoted 1 times
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Mimek
2 years, 8 months ago
Selected Answer: D
D as of Jan 2022
upvoted 8 times
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futen0326
2 years, 10 months ago
B. Glacier supports expedited archive. AWS Backup is the recommended backup solution for EFS. Not sure about cost here but the question does not mention anything about cost-efficiency.
upvoted 1 times
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AMKazi
2 years, 10 months ago
Ans is C: "use as a fallback in the event of a main Region performance issue." meets this requirements as data needs to be continuously replicated. Remember its being copied to S3 so it can meet RTO requirement. Glacier will come into picture as a lifecycle policy , not in effect immediately.
upvoted 1 times
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lulz111
2 years, 10 months ago
Its C in my opinion https://aws.amazon.com/about-aws/whats-new/2019/05/aws-datasync-now-supports-efs-to-efs-transfer/ - copying data between EFS file systems https://docs.aws.amazon.com/amazonglacier/latest/dev/downloading-an-archive-two-steps.html - Expedited recovery from Glacier is between 1-5 minutes.
upvoted 1 times
lulz111
2 years, 10 months ago
B sorry, i missed the Deep archive bit of C. https://aws.amazon.com/about-aws/whats-new/2020/01/aws-backup-supports-cross-region-backup/
upvoted 2 times
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AzureDP900
3 years ago
I will go with A https://aws.amazon.com/about-aws/whats-new/2019/05/aws-datasync-now-supports-efs-to-efs-transfer/
upvoted 1 times
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AzureDP900
3 years ago
A is right
upvoted 1 times
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