Amazon DBS-C01 Practice Test - Questions Answers, Page 16
List of questions
Question 151
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A major organization maintains a number of Amazon DB clusters. Each of these clusters is configured differently to meet certain needs. These configurations may be classified into wider groups based on the team and use case.
A database administrator wishes to streamline the process of storing and updating these settings.
Additionally, the database administrator want to guarantee that changes to certain configuration categories are automatically implemented to all instances as necessary.
Which AWS service or functionality will assist in automating and achieving this goal?
Explanation:
Database parameters specify how the database is configured. For example, database parameters can specify the amount of resources, such as memory, to allocate to a database.
Question 152
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In one AWS account, a business runs a two-tier ecommerce application. An Amazon RDS for MySQL Multi-AZ database instance serves as the application's backend. A developer removed the database instance in the production environment by accident. Although the organization recovers the database, the incident results in hours of outage and financial loss.
Which combination of adjustments would reduce the likelihood that this error will occur again in the future? (Select three.)
Explanation:
Question 153
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A database specialist needs to configure an Amazon RDS for MySQL DB instance to close noninteractive connections that are inactive after 900 seconds.
What should the database specialist do to accomplish this task?
Explanation:
https://aws.amazon.com/fr/blogs/database/best-practices-for-configuring-parameters-for-amazonrds-for-mysql-part-3-parameters-related-to-security-operational-manageability-and-connectivity-timeout/
"You can set parameters globally using a parameter group. Alternatively, you can set them for aparticular session using the SET command." https://aws.amazon.com/blogs/database/best-practicesfor-configuring-parameters-for-amazon-rds- for-mysql-part-1-parameters-related-to-performance/
Question 154
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A database professional maintains a fleet of Amazon RDS database instances that are configured to utilize the default database parameter group. A database expert must connect a custom parameter group with certain database instances.
When will the instances be allocated to this new parameter group once the database specialist performs this change?
Explanation:
When you associate a new DB parameter group with a DB instance, the modified static and dynamic parameters are applied only after the DB instance is rebooted.
Question 155
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A small startup firm wishes to move a 4 TB MySQL database from on-premises to AWS through an Amazon RDS for MySQL DB instance.
Which migration approach would result in the LEAST amount of downtime?
Explanation:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/MySQL.Procedural.Importing.NonRDSRepl.html
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/MySQL.Procedural.Importing.External.
Repl.html
Question 156
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Amazon RDS for Oracle with Transparent Data Encryption is used by a financial services organization (TDE). At all times, the organization is obligated to encrypt its data at rest. The decryption key must be widely distributed, and access to the key must be restricted. The organization must be able to rotate the encryption key on demand to comply with regulatory requirements. If any possible security vulnerabilities are discovered, the organization must be able to disable the key. Additionally, the company's overhead must be kept to a minimal.
What method should the database administrator use to configure the encryption to fulfill these specifications?
Explanation:
https://docs.aws.amazon.com/whitepapers/latest/kms-best-practices/aws-managed-and-customermanaged-cmks.html
Question 157
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A business is launching a new Amazon RDS for SQL Server database instance. The organization wishes to allow auditing of the SQL Server database.
Which measures should a database professional perform in combination to achieve this requirement? (Select two.)
Explanation:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.SQLServer.Options.Audit.html
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/security_iam_service-with-iam.html
Question 158
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A business maintains a SQL Server database on-premises. Active Directory authentication is used to provide users access to the database. The organization transferred their database successfully to Amazon RDS for SQL Server. The organization, however, has reservations regarding user authentication in the AWS Cloud environment.
Which authentication solution should a database professional provide?
Explanation:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_SQLServerWinAuth.html
Question 159
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A database expert is responsible for building a highly available online transaction processing (OLTP) solution that makes use of Amazon RDS for MySQL production databases. Disaster recovery criteria include a cross-regional deployment and an RPO and RTO of 5 and 30 minutes, respectively.
What should the database professional do to ensure that the database meets the criteria for high availability and disaster recovery?
Question 160
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A financial services organization employs an Amazon Aurora PostgreSQL DB cluster to host an application on AWS. No log files detailing database administrator activity were discovered during a recent examination. A database professional must suggest a solution that enables access to the database and maintains activity logs. The solution should be simple to implement and have a negligible effect on performance.
Which database specialist solution should be recommended?
Explanation:
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/DBActivityStreams.Overview.html
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