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Exam AWS Certified Solutions Architect - Professional topic 1 question 728 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional
Question #: 728
Topic #: 1
[All AWS Certified Solutions Architect - Professional Questions]

A company wants to migrate a 30 TB Oracle data warehouse from on premises to Amazon Redshift. The company used the AWS Schema Conversion Tool (AWS
SCT) to convert the schema of the existing data warehouse to an Amazon Redshift schema. The company also used a migration assessment report to identify manual tasks to complete.
The company needs to migrate the data to the new Amazon Redshift cluster during an upcoming data freeze period of 2 weeks. The only network connection between the on-premises data warehouse and AWS is a 50 Mbps internet connection.
Which migration strategy meets these requirements?

  • A. Create an AWS Database Migration Service (AWS DMS) replication instance. Authorize the public IP address of the replication instance to reach the data warehouse through the corporate firewall. Create a migration task to run at the beginning of the fata freeze period.
  • B. Install the AWS SCT extraction agents on the on-premises servers. Define the extract, upload, and copy tasks to send the data to an Amazon S3 bucket. Copy the data into the Amazon Redshift cluster. Run the tasks at the beginning of the data freeze period.
  • C. Install the AWS SCT extraction agents on the on-premises servers. Create a Site-to-Site VPN connection. Create an AWS Database Migration Service (AWS DMS) replication instance that is the appropriate size. Authorize the IP address of the replication instance to be able to access the on-premises data warehouse through the VPN connection.
  • D. Create a job in AWS Snowball Edge to import data into Amazon S3. Install AWS SCT extraction agents on the on-premises servers. Define the local and AWS Database Migration Service (AWS DMS) tasks to send the data to the Snowball Edge device. When the Snowball Edge device is returned to AWS and the data is available in Amazon S3, run the AWS DMS subtask to copy the data to Amazon Redshift.
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Suggested Answer: D 🗳️
by gsw at April 30, 2021, 12:51 p.m.
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gsw
Highly Voted 3 years ago
D seems correct
upvoted 12 times
StelSen
2 years, 11 months ago
Adding one more link for architecture: https://docs.aws.amazon.com/dms/latest/userguide/CHAP_LargeDBs.Process.html
upvoted 1 times
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ExtHo
3 years ago
Yes its D :) Transfer 30TB over 50Mbps will take around 53Days that ruled out ABC https://www.calctool.org/CALC/prof/computing/transfer_time
upvoted 9 times
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SkyZeroZx
Most Recent 1 year, 3 months ago
Selected Answer: D
50Mbps = 6.25 MBPS = 22GB per hour = 540 (.5TB) per day. 30TB / .5 = 60 days... Snowball is the only option here
upvoted 1 times
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[Removed]
1 year, 7 months ago
Selected Answer: D
50Mbps = 6.25 MBPS = 22GB per hour = 540 (.5TB) per day. 30TB / .5 = 60 days... Snowball is the only option here
upvoted 1 times
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cldy
2 years, 10 months ago
D. Create a job in AWS Snowball Edge to import data into Amazon S3. Install AWS SCT extraction agents on the on-premises servers. Define the local and AWS Database Migration Service (AWS DMS) tasks to send the data to the Snowball Edge device. When the Snowball Edge device is returned to AWS and the data is available in Amazon S3, run the AWS DMS subtask to copy the data to Amazon Redshift.
upvoted 1 times
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backfringe
2 years, 10 months ago
I go with D
upvoted 1 times
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AzureDP900
2 years, 10 months ago
D is best option, data transfer using corporate internet takes around 58 days!
upvoted 1 times
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andylogan
2 years, 11 months ago
It's D
upvoted 1 times
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tgv
2 years, 11 months ago
DDD --- You cannot migrate 20 TB over 50 Mbps in 2 weeks without Snowball
upvoted 3 times
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WhyIronMan
2 years, 11 months ago
I'll go with D for data > 20TB use Snowball
upvoted 2 times
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vimgoru24
2 years, 11 months ago
D. This is the way.
upvoted 1 times
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hk436
2 years, 11 months ago
D is my answer!!
upvoted 1 times
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Waiweng
2 years, 11 months ago
it's D
upvoted 2 times
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tvs
2 years, 12 months ago
it is D . Since there is no online data to sync , snowball is best option. Also with 50Mbs you can able to transfer 7Tb only in 14 days.
upvoted 3 times
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beebatov
3 years ago
Answer: D AWS Database Migration Service (AWS DMS) can use Snowball Edge and Amazon S3 to migrate large databases more quickly than by other methods https://docs.aws.amazon.com/dms/latest/userguide/CHAP_LargeDBs.html
upvoted 4 times
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