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NEW QUESTION 44
A company is looking to move an on-premises IBM Db2 database running AIX on an IBM POWER7 server.
Due to escalating support and maintenance costs, the company is exploring the option of moving the workload to an Amazon Aurora PostgreSQL DB cluster.
What is the quickest way for the company to gather data on the migration compatibility?
- A. Run AWS DMS from the Db2 database to an Aurora DB cluster. Identify the gaps and compatibility of theobjects migrated by comparing the row counts from source and target tables.
- B. Run the AWS Schema Conversion Tool (AWS SCT) from the Db2 database to an Aurora DB cluster.Create a migration assessment report to evaluate the migration compatibility.
- C. Run native PostgreSQL logical replication from the Db2 database to an Aurora DB cluster to evaluate themigration compatibility.
- D. Perform a logical dump from the Db2 database and restore it to an Aurora DB cluster. Identify the gaps andcompatibility of the objects migrated by comparing row counts from source and target tables.
Answer: B
NEW QUESTION 45
An Amazon RDS EBS-optimized instance with Provisioned IOPS (PIOPS) storage is using less than half of its allocated IOPS over the course of several hours under constant load. The RDS instance exhibits multi-second read and write latency, and uses all of its maximum bandwidth for read throughput, yet the instance uses less than half of its CPU and RAM resources.
What should a Database Specialist do in this situation to increase performance and return latency to sub-second levels?
- A. Increase the size of the DB instance storage
- B. Change the underlying EBS storage type to General Purpose SSD (gp2)
- C. Disable EBS optimization on the DB instance
- D. Change the DB instance to an instance class with a higher maximum bandwidth
Answer: B
NEW QUESTION 46
A company has an ecommerce web application with an Amazon RDS for MySQL DB instance. The marketing team has noticed some unexpected updates to the product and pricing information on the website, which is impacting sales targets. The marketing team wants a database specialist to audit future database activity to help identify how and when the changes are being made.
What should the database specialist do to meet these requirements? (Choose two.)
- A. Enable Enhanced Monitoring on the DB instance.
- B. SSH to the DB instance and review the database logs.
- C. Enable auditing of CONNECT and QUERY_DML events.
- D. Publish the database logs to Amazon CloudWatch Logs.
- E. Create an RDS event subscription to the audit event type.
Answer: C,D
Explanation:
Explanation
https://aws.amazon.com/blogs/database/configuring-an-audit-log-to-capture-database-activities-for-amazon-rds-f
NEW QUESTION 47
A company is planning to close for several days. A Database Specialist needs to stop all applications along with the DB instances to ensure employees do not have access to the systems during this time. All databases are running on Amazon RDS for MySQL.
The Database Specialist wrote and executed a script to stop all the DB instances. When reviewing the logs, the Database Specialist found that Amazon RDS DB instances with read replicas did not stop.
How should the Database Specialist edit the script to fix this issue?
- A. Use the AWS CLI to stop each read replica and source instance at the same time
- B. Stop the read replicas before stopping their source instances
- C. Stop the source instances before stopping their read replicas
- D. Delete each read replica before stopping its corresponding source instance
Answer: D
Explanation:
Explanation
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_StopInstance.html
"The following are some limitations to stopping and starting a DB instance: You can't stop a DB instance that has a read replica, or that is a read replica." So if you cant stop a db with a read replica, you have to delete the read replica first to then stop it???
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_MySQL.Replication.ReadReplicas.html#US
NEW QUESTION 48
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