Latest New DBS-C01 Dumps Questions–100% Valid AWS Certified Database - Specialty (DBS-C01) Exam Reliable Exam Review

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Understanding functional and technical aspects of AWS Certified Database - Specialty Database

The following will be discussed in AMAZON DBS-C01 exam dumps:

Evaluate auditing solutions
Recognize potential security vulnerabilities within database solutions
Determine access control and authentication mechanisms
Encrypt data at rest and in transit

The Amazon AWS Certified Database – Specialty exam, which is also known as Amazon DBS-C01, evaluates the applicants’ basic knowledge of databases, comprising mainly the concepts of design, troubleshooting, deployment, access, as well as monitoring, maintenance, automation, security, and migration. This test is designed to measure the professionals’ ability to design, maintain, and recommend the best AWS database solution to enable innovation, reduce costs, and improve performance. After passing the DBS-C01 exam, the candidates are awarded the specialty-level certificate that validates their expertise in the breadth of Amazon AWS database services.

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Amazon AWS Certified Database - Specialty (DBS-C01) Exam Sample Questions (Q204-Q209):

NEW QUESTION # 204
A Database Specialist is migrating a 2 TB Amazon RDS for Oracle DB instance to an RDS for PostgreSQL DB instance using AWS DMS. The source RDS Oracle DB instance is in a VPC in the us-east-1 Region. The target RDS for PostgreSQL DB instance is in a VPC in the use-west-2 Region.
Where should the AWS DMS replication instance be placed for the MOST optimal performance?

A. In the same Region and VPC as the target DB instance
B. In the same VPC and Availability Zone as the target DB instance
C. In the same Region and VPC of the source DB instance
D. In the same VPC and Availability Zone as the source DB instance

Answer: B

Explanation:
Explanation
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_ReplicationInstance.VPC.html#CHAP_ReplicationIn In fact, all the configurations list on above url prefer the replication instance putting into target vpc region / subnet / az.
https://docs.aws.amazon.com/dms/latest/sbs/CHAP_SQLServer2Aurora.Steps.CreateReplicationInstance.html

NEW QUESTION # 205
A Database Specialist is migrating an on-premises Microsoft SQL Server application database to Amazon RDS for PostgreSQL using AWS DMS. The application requires minimal downtime when the RDS DB instance goes live.
What change should the Database Specialist make to enable the migration?

A. Configure the AWS DMS connections to allow two-way communication to allow for ongoing change data capture (CDC)
B. Configure the AWS DMS task to generate full logs to allow for ongoing change data capture (CDC)
C. Configure the on-premises application database to act as a source for an AWS DMS full load with ongoing change data capture (CDC)
D. Configure the AWS DMS replication instance to allow both full load and ongoing change data capture (CDC)

Answer: C

Explanation:
Explanation
"requires minimal downtime when the RDS DB instance goes live" in order to do CDC: "you must first ensure that ARCHIVELOG MODE is on to provide information to LogMiner. AWS DMS uses LogMiner to read information from the archive logs so that AWS DMS can capture changes"
https://docs.aws.amazon.com/dms/latest/sbs/chap-oracle2postgresql.steps.configureoracle.html
"If you want to capture and apply changes (CDC), then you also need the following privileges."

NEW QUESTION # 206
A company runs online transaction processing (OLTP) workloads on an Amazon RDS for PostgreSQL Multi-AZ DB instance. Tests were run on the database after work hours, which generated additional database logs. The free storage of the RDS DB instance is low due to these additional logs.
What should the company do to address this space constraint issue?

A. Run the SELECT rds_rotate_error_log() stored procedure to rotate the logs
B. Create a ticket with AWS Support to have the logs deleted
C. Log in to the host and run the rm $PGDATA/pg_logs/* command
D. Modify the rds.log_retention_period parameter to 1440 and wait up to 24 hours for database logs to bedeleted

Answer: D

NEW QUESTION # 207
A company is using a Single-AZ Amazon RDS for MySQL DB instance for development. The DB instance is experiencing slow performance when queries are executed. Amazon CloudWatch metrics indicate that the instance requires more I/O capacity.
Which actions can a database specialist perform to resolve this issue? (Choose two.)

A. Change to a database instance class with higher throughput.
B. Restart the application tool used to execute queries.
C. Increase the I/O parameter in Amazon RDS Enhanced Monitoring.
D. Convert from General Purpose to Provisioned IOPS (PIOPS).
E. Convert from Single-AZ to Multi-AZ.

Answer: A,D

Explanation:
https://aws.amazon.com/blogs/database/best-storage-practices-for-running-production-workloads-on-hosted-databases-with-amazon-rds-or-amazon-ec2/
"If you find the pattern of IOPS usage consistently going beyond more than 16,000, you should modify the DB instance and change the storage type from gp2 to io1.

NEW QUESTION # 208
A Database Specialist needs to define a database migration strategy to migrate an on-premises Oracle database to an Amazon Aurora MySQL DB cluster. The company requires near-zero downtime for the data migration. The solution must also be cost-effective.
Which approach should the Database Specialist take?

A. Use the AWS Schema Conversion Tool (AWS SCT) to help rewrite database objects to MySQL during the schema migration. Use AWS DMS to perform the full load and change data capture (CDC) tasks.
B. Dump all the tables from the Oracle database into an Amazon S3 bucket using datapump (expdp). Run data transformations in AWS Glue. Load the data from the S3 bucket to the Aurora DB cluster.
C. Order an AWS Snowball appliance and copy the Oracle backup to the Snowball appliance. Once the Snowball data is delivered to Amazon S3, create a new Aurora DB cluster. Enable the S3 integration to migrate the data directly from Amazon S3 to Amazon RDS.
D. Use AWS Server Migration Service (AWS SMS) to import the Oracle virtual machine image as an Amazon EC2 instance. Use the Oracle Logical Dump utility to migrate the Oracle data from Amazon EC2 to an Aurora DB cluster.

Answer: A

Explanation:
https://aws.amazon.com/blogs/database/migrating-oracle-databases-with-near-zero-downtime-using-aws-dms/

NEW QUESTION # 209
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