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Question # 1
A company recently migrated its line-of-business (LOB) application to AWS. The
application uses an Amazon RDS for SQL Server DB instance as its database engine.
The company must set up cross-Region disaster recovery for the application. The company
needs a solution with the lowest possible RPO and RTO.
Which solution will meet these requirements?
A. Create a cross-Region read replica of the DB instance. Promote the read replica at the time of failover.
B. Set up SQL replication from the DB instance to an Amazon EC2 instance in the disaster recovery Region. Promote the EC2 instance as the primary server.
C. Use AWS Database Migration Service (AWS KMS) for ongoing replication of the DB instance in the disaster recovery Region.
D. Take manual snapshots of the DB instance in the primary Region. Copy the snapshots to the disaster recovery Region.
Question # 2
A financial services company runs an on-premises MySQL database for a critical
application. The company is dissatisfied with its current database disaster recovery (DR)
solution. The application experiences a significant amount of downtime whenever the
database fails over to its DR facility. The application also experiences slower response
times when reports are processed on the same database. To minimize the downtime in DR
situations, the company has decided to migrate the database to AWS. The company
requires a solution that is highly available and the most cost-effective.
Which solution meets these requirements?
A. Create an Amazon RDS for MySQL Multi-AZ DB instance and configure a read replica in a different Availability Zone. Configure the application to reference the replica instance endpoint and report queries to reference the primary DB instance endpoint.
B. Create an Amazon RDS for MySQL Multi-AZ DB instance and configure a read replica in a different Availability Zone. Configure the application to reference the primary DB instance endpoint and report queries to reference the replica instance endpoint.
C. Create an Amazon Aurora DB cluster and configure an Aurora Replica in a different Availability Zone. Configure the application to reference the cluster endpoint and report queries to reference the reader endpoint.
D. Create an Amazon Aurora DB cluster and configure an Aurora Replica in a different Availability Zone. Configure the application to reference the primary DB instance endpoint and report queries to reference the replica instance endpoint.
Question # 3
A company has branch offices in the United States and Singapore. The company has a
three-tier web application that uses a shared database. The database runs on an Amazon
RDS for MySQL DB instance that is hosted in the us-west-2 Region. The application has a
distributed front end that is deployed in us-west-2 and in the ap-southeast-1 Region. The
company uses this front end as a dashboard that provides statistics to sales managers in
each branch office. The dashboard loads more slowly in the Singapore branch office than in the United States
branch office. The company needs a solution so that the dashboard loads consistently for
users in each location.
Which solution will meet these requirements in the MOST operationally efficient way?
A. Take a snapshot of the DB instance in us-west-2. Create a new DB instance in apsoutheast-2 from the snapshot. Reconfigure the ap-southeast-1 front-end dashboard to access the new DB instance.
B. Create an RDS read replica in ap-southeast-1 from the primary DB instance in us-west2. Reconfigure the ap-southeast-1 front-end dashboard to access the read replica.
C. Create a new DB instance in ap-southeast-1. Use AWS Database Migration Service (AWS DMS) and change data capture (CDC) to update the new DB instance in apsoutheast-1. Reconfigure the ap-southeast-1 front-end dashboard to access the new DB instance.
D. Create an RDS read replica in us-west-2, where the primary DB instance resides. Create a read replica in ap-southeast-1 from the read replica in us-west-2. Reconfigure the ap-southeast-1 front-end dashboard to access the read replica in ap-southeast-1.
Question # 4
A software-as-a-service (SaaS) company is using an Amazon Aurora Serverless DB cluster
for its production MySQL database. The DB cluster has general logs and slow query logs
enabled. A database engineer must use the most operationally efficient solution with
minimal resource utilization to retain the logs and facilitate interactive search and analysis.
Which solution meets these requirements?
A. Use an AWS Lambda function to ship database logs to an Amazon S3 bucket. Use Amazon Athena and Amazon QuickSight to search and analyze the logs.
B. Download the logs from the DB cluster and store them in Amazon S3 by using manual scripts. Use Amazon Athena and Amazon QuickSight to search and analyze the logs.
C. Use an AWS Lambda function to ship database logs to an Amazon S3 bucket. Use Amazon Elasticsearch Service (Amazon ES) and Kibana to search and analyze the logs.
D. Use Amazon CloudWatch Logs Insights to search and analyze the logs when the logs are automatically uploaded by the DB cluster.
Question # 5
A gaming company uses Amazon Aurora Serverless for one of its internal applications. The company's developers use Amazon RDS Data API to work with the
Aurora Serverless DB cluster. After a recent security review, the company is mandating
security enhancements. A database specialist must ensure that access to
RDS Data API is private and never passes through the public internet.
What should the database specialist do to meet this requirement?
A. Modify the Aurora Serverless cluster by selecting a VPC with private subnets.
B. Modify the Aurora Serverless cluster by unchecking the publicly accessible option.
C. Create an interface VPC endpoint that uses AWS PrivateLink for RDS Data API.
D. Create a gateway VPC endpoint for RDS Data API.
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