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A solutions architect is developing a multiple-subnet VPC architecture. The solution will consist of six subnets in two Availability Zones. The subnets are defined as public, private and dedicated for databases. Only the Amazon EC2 instances running in the private subnets should be able to access a database. Which solution meets these requirements?
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A company stores data in an on-premises Oracle relational database. The company needs to make the data available in Amazon Aurora PostgreSQL for analysis The company uses an AWS Site-to-Site VPN connection to connect its on-premises network to AWS. The company must capture the changes that occur to the source database during the migration to Aurora PostgreSQL. Which solution will meet these requirements?
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Question 655 - SAA-C03 discussion

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A company has a business-critical application that runs on Amazon EC2 instances. The application stores data in an Amazon DynamoDB table. The company must be able to revert the table to any point within the last 24 hours.

Which solution meets these requirements with the LEAST operational overhead?

A.
Configure point-in-time recovery for the table.
Answers
A.
Configure point-in-time recovery for the table.
B.
Use AWS Backup for the table.
Answers
B.
Use AWS Backup for the table.
C.
Use an AWS Lambda function to make an on-demand backup of the table every hour.
Answers
C.
Use an AWS Lambda function to make an on-demand backup of the table every hour.
D.
Turn on streams on the table to capture a log of all changes to the table in the last 24 hours Store a copy of the stream in an Amazon S3 bucket.
Answers
D.
Turn on streams on the table to capture a log of all changes to the table in the last 24 hours Store a copy of the stream in an Amazon S3 bucket.
Suggested answer: A

Explanation:

Point-in-time recovery (PITR) for DynamoDB is a feature that enables you to restore your table data to any point in time during the last 35 days. PITR helps protect your table from accidental write or delete operations, such as a test script writing to a production table or a user issuing a wrong command. PITR is easy to use, fully managed, fast, and scalable. You can enable PITR with a single click in the DynamoDB console or with a simple API call. You can restore a table to a new table using the console, the AWS CLI, or the DynamoDB API. PITR does not consume any provisioned table capacity and has no impact on the performance or availability of your production applications. PITR meets the requirements of the company with the least operational overhead, as it does not require any manual backup creation, scheduling, or maintenance. It also provides per-second granularity for restoring the table to any point within the last 24 hours.

Point-in-time recovery for DynamoDB - Amazon DynamoDB

Amazon DynamoDB point-in-time recovery (PITR)

Enable Point-in-Time Recovery (PITR) for Dynamodb global tables

Restoring a DynamoDB table to a point in time - Amazon DynamoDB

Point-in-time recovery: How it works - Amazon DynamoDB

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asked 16/09/2024
Jaap van Veldhuizen
45 questions
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