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下載AWS-Certified-Database-Specialty考試題庫

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下載AWS Certified Database - Specialty (DBS-C01) Exam考試題庫

NEW QUESTION 35
Developers have requested a new Amazon Redshift cluster so they can load new third-party marketing data.
The new cluster is ready and the user credentials are given to the developers. The developers indicate that their copy jobs fail with the following error message:
"Amazon Invalid operation: S3ServiceException:Access Denied,Status 403,Error AccessDenied." The developers need to load this data soon, so a database specialist must act quickly to solve this issue.
What is the MOST secure solution?

• A. Create a new IAM user with access keys and a new role with read-only access to the Amazon S3 bucket.Add this role to the Amazon Redshift cluster. Change the copy job to use the access keys created.
• B. Create a new IAM role with read-only access to the Amazon S3 bucket and include the assume role action. Modify the Amazon Redshift cluster to add the IAM role.
• C. Create a new IAM role with read-only access to the Amazon S3 bucket with the assume role action. Add this role to the developer IAM user ID used for the copy job that ended with an error message.
• D. Create a new IAM role with the same user name as the Amazon Redshift developer user ID. Provide the IAM role with read-only access to Amazon S3 with the assume role action.

Answer: B

Explanation:
Explanation
https://docs.aws.amazon.com/redshift/latest/gsg/rs-gsg-create-an-iam-role.html
"Now that you have created the new role, your next step is to attach it to your cluster. You can attach the role when you launch a new cluster or you can attach it to an existing cluster. In the next step, you attach the role to a new cluster."
https://docs.aws.amazon.com/redshift/latest/dg/copy-usage_notes-access-permissions.html

NEW QUESTION 36
A financial company has allocated an Amazon RDS MariaDB DB instance with large storage capacity to accommodate migration efforts. Post-migration, the company purged unwanted data from the instance. The company now want to downsize storage to save money. The solution must have the least impact on production and near-zero downtime.
Which solution would meet these requirements?

• A. Create a new read replica and make it the primary by terminating the existing primary
• B. Create a snapshot of the old databases and restore the snapshot with the required storage
• C. Create a new database using native backup and restore
• D. Create a new RDS DB instance with the required storage and move the databases from the old instancesto the new instance using AWS DMS

Answer: B

NEW QUESTION 37
A company is running a two-tier ecommerce application in one AWS account. The web server is deployed using an Amazon RDS for MySQL Multi-AZ DB instance. A Developer mistakenly deleted the database in the production environment. The database has been restored, but this resulted in hours of downtime and lost revenue.
Which combination of changes in existing IAM policies should a Database Specialist make to prevent an error like this from happening in the future? (Choose three.)

• A. Enable multi-factor authentication for sensitive operations to access sensitive resources and APIoperations
• B. Enable AWS CloudTrail logging and Enhanced Monitoring
• C. Use policy conditions to restrict access to selective IP addresses
• D. Grant least privilege to groups, users, and roles
• E. Use AccessList Controls policy type to restrict users for database instance deletion
• F. Allow all users to restore a database from a backup that will reduce the overall downtime to restore thedatabase

Answer: A,C,D

NEW QUESTION 38
A database specialist is responsible for an Amazon RDS for MySQL DB instance with one read replic a. The DB instance and the read replica are assigned to the default parameter group. The database team currently runs test queries against a read replica. The database team wants to create additional tables in the read replica that will only be accessible from the read replica to benefit the tests.
Which should the database specialist do to allow the database team to create the test tables?

• A. Change the read_only parameter to false (read_only=0) in the default parameter group. Reboot the read replica. Connect to the read replica and create the tables.
• B. Create a new DB parameter group. Change the read_only parameter to false (read_only=0). Associate the read replica with the new group. Reboot the read replica. Connect to the read replica and create the tables.
• C. Change the read_only parameter to false (read_only=0) in the default parameter group of the read replica. Perform a reboot without failover. Connect to the read replica and create the tables using the local_only MySQL option.
• D. Contact AWS Support to disable read-only mode on the read replica. Reboot the read replica. Connect to the read replica and create the tables.

Answer: B

Explanation:
https://aws.amazon.com/premiumsupport/knowledge-center/rds-read-replica/

NEW QUESTION 39
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