Amazon Web Services passleader pdf Dbs-c01 Study Guide by Atlas q216 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:	atlas

Question 32

A database specialist is constructing an AWS CloudFormation stack using AWS CloudFormation. The database expert wishes to avoid the stack's Amazon RDS ProductionDatabase resource being accidentally deleted.

Which solution will satisfy this criterion?

Options:

Create a stack policy to prevent updates. Include ג€Effectג€ : ג€ProductionDatabaseג€ and ג€Resourceג€ : ג€Denyג€ in the policy.

Create an AWS CloudFormation stack in XML format. Set xAttribute as false.

Create an RDS DB instance without the DeletionPolicy attribute. Disable termination protection.

Create a stack policy to prevent updates. Include Effect, Deny, and Resource :ProductionDatabase in the policy.

Discussion

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Question 33

A retail company uses Amazon Redshift for its 1 PB data warehouse. Several analytical workloads run on a Redshift cluster. The tables within the cluster have grown rapidly. End users are reporting poor performance of daily reports that run on the transaction fact tables.

A database specialist must change the design of the tables to improve the reporting performance. All the changes must be applied dynamically. The changes must have the least possible impact on users and must optimize the overall table size.

Which solution will meet these requirements?

Options:

Use the STL SCAN view to understand how the tables are getting scanned. Identify the columns that are used in filter and group by conditions. Create a temporary table with the identified columns as sort keys and compression as Zstandard (ZSTD) by copying the data from the original table. Drop the original table. Give the temporary table the same name that the original table had.

Run an explain plan to analyze the queries on the tables. Consider recommendations from Amazon Redshift Advisor. Identify the columns that are used in filter and group by conditions. Convert the recommended columns from Redshift Advisor into sort keys with compression encoding set to RAW. Set the rest of the column compression encoding to AZ64.

Run an explain plan to analyze the queries on the tables. Consider recommendations from Amazon Redshift Advisor. Identify the columns that are used in filter and group by conditions. Convert the recommended columns from Redshift Advisor into sort keys with compression encoding set to I_ZO. Set the rest of the column compression encoding to Zstandard (ZSTD).

Run an explain plan to analyze the queries on the tables. Consider recommendations from Amazon Redshift Advisor. Identify the columns that are used in filter and group by conditions. Create a deep copy of the table with the identified columns as sort keys and compression for all columns as Zstandard (ZSTD) by using a bulk insert. Drop the original table. Give the copy table the same name that the original table had.

Discussion

Question 34

A database specialist needs to move an Amazon RDS DB instance from one AWS account to another AWS account.

Which solution will meet this requirement with the LEAST operational effort?

Options:

Use AWS Database Migration Service (AWS DMS) to migrate the DB instance from the source AWS account to the destination AWS account.

Create a DB snapshot of the DB instance. Share the snapshot with the destination AWS account. Create a new DB instance by restoring the snapshot in the destination AWS account.

Create a Multi-AZ deployment for the DB instance. Create a read replica for the DB instance in the source AWS account. Use the read replica to replicate the data into the DB instance in the destination AWS account.

Use AWS DataSync to back up the DB instance in the source AWS account. Use AWS Resource Access Manager (AWS RAM) to restore the backup in the destination AWS account.

Discussion

Question 35

A database specialist is planning to migrate a 4 TB Microsoft SQL Server DB instance from on premises to Amazon RDS for SQL Server. The database is primarily used for nightly batch processing.

Which RDS storage option meets these requirements MOST cost-effectively?

Options:

General Purpose SSD storage

Provisioned IOPS storage

Magnetic storage

Throughput Optimized hard disk drives (HDD)