Amazon Web Services actualtests amazon Web Services Dbs-c01 Questions Answers by Celia q243 vce pdf

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Exam Name:	AWS Certified Database - Specialty
Exam Code:	DBS-C01 Dumps
Vendor:	Amazon Web Services	Certification:	AWS Certified Database
Questions:	324 Q&A's	Shared By:	celia

Question 12

Recently, an ecommerce business transferred one of its SQL Server databases to an Amazon RDS for SQL Server Enterprise Edition database instance. The corporation anticipates an increase in read traffic as a result of an approaching sale. To accommodate the projected read load, a database professional must establish a read replica of the database instance.

Which procedures should the database professional do prior to establishing the read replica? (Select two.)

Options:

Identify a potential downtime window and stop the application calls to the source DB instance.

Ensure that automatic backups are enabled for the source DB instance.

Ensure that the source DB instance is a Multi-AZ deployment with Always ON Availability Groups.

Ensure that the source DB instance is a Multi-AZ deployment with SQL Server Database Mirroring (DBM).

Modify the read replica parameter group setting and set the value to 1.

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Question 13

A company is developing a new web application. An AWS CloudFormation template was created as a part of the build process.

Recently, a change was made to an AWS::RDS::DBInstance resource in the template. The CharacterSetName property was changed to allow the application to process international text. A change set was generated using the new template, which indicated that the existing DB instance should be replaced during an upgrade.

What should a database specialist do to prevent data loss during the stack upgrade?

Options:

Create a snapshot of the DB instance. Modify the template to add the DBSnapshotIdentifier property with the ID of the DB snapshot. Update the stack.

Modify the stack policy using the aws cloudformation update-stack command and the set-stack-policy command, then make the DB resource protected.

Create a snapshot of the DB instance. Update the stack. Restore the database to a new instance.

Deactivate any applications that are using the DB instance. Create a snapshot of the DB instance. Modify the template to add the DBSnapshotIdentifier property with the ID of the DB snapshot. Update the stack and reactivate the applications.

Discussion

Question 14

An online gaming company is planning to launch a new game with Amazon DynamoDB as its data store. The database should be designated to support the following use cases:

Update scores in real time whenever a player is playing the game. Retrieve a player’s score details for a specific game session.

A Database Specialist decides to implement a DynamoDB table. Each player has a unique user_id and each

game has a unique game_id.

Which choice of keys is recommended for the DynamoDB table?

Options:

Create a global secondary index with game_id as the partition key

Create a global secondary index with user_id as the partition key

Create a composite primary key with game_id as the partition key and user_id as the sort key

Create a composite primary key with user_id as the partition key and game_id as the sort key

Discussion

Question 15

An ecommerce company uses Amazon DynamoDB as the backend for its payments system. A new regulation requires the company to log all data access requests for financial audits. For this purpose, the company plans to use AWS logging and save logs to Amazon S3

How can a database specialist activate logging on the database?

Options:

Use AWS CloudTrail to monitor DynamoDB control-plane operations. Create a DynamoDB stream to monitor data-plane operations. Pass the stream to Amazon Kinesis Data Streams. Use that stream as a source for Amazon Kinesis Data Firehose to store the data in an Amazon S3 bucket.

Use AWS CloudTrail to monitor DynamoDB data-plane operations. Create a DynamoDB stream to monitor control-plane operations. Pass the stream to Amazon Kinesis Data Streams. Use that stream as a source for Amazon Kinesis Data Firehose to store the data in an Amazon S3 bucket.

Create two trails in AWS CloudTrail. Use Trail1 to monitor DynamoDB control-plane operations. Use Trail2 to monitor DynamoDB data-plane operations.

Use AWS CloudTrail to monitor DynamoDB data-plane and control-plane operations.