1. An application running on AWS uses an Amazon Aurora Multi-AZ deployment for its database. When evaluating performance metrics, a solutions architect discovered that the database reads are causing high I/O and adding latency to the write requests against the database.What should the solutions architect do to separate the read requests from the write requests?

A) Update the application to read from the Multi-AZ standby instance
B) Create a read replica and modify the application to use the appropriate endpoint
C) Create a second Amazon Aurora database and link it to the primary database as a read replica
D) Enable read through caching on the Amazon Aurora databse.



2. A company's application hosted on Amazon EC2 instances needs to access an Amazon S3 bucket. Due to data sensitivity, traffic cannot traverse the internet.How should a solutions architect configure access?

A) Configure a VPC gateway endpoint for Amazon S3 in the VPC
B) Set up a site-to-site VPN connection between the VPC and the S3 bucket.
C) Create a private hosted zone using Amazon Route 53
D) Configure AWS PrivateLink between the EC2 instance and the S3 bucket



3. A database is on an Amazon RDS MySQL 5.6 Multi-AZ DB instance that experiences highly dynamic reads. Application developers notice a significant slowdown when testing read performance from a secondary AWS Region. The developers want a solution that provide less than 1 second of read replication latency. What should the solutions architect recommend?

A) Migrate the database to Amazon Aurora with cross-Region replicas.
B) Install MySQL on Amazon EC2 in the secondary Region
C) Create another RDS for MySQL read replica in the secondary Region
D) Implement Amazon ElastiCache to improve database query performance.



4. A company currently operates a web application backed by an Amazon RDS MySQL database. It has automated backups that are run daily and are not encrypted. A security audit requires future backups to be encrypted and the unencrypted backups to be destroyed. The company will make at least one encrypted backup before destroying the old backups.What should be done to enable encryption for future backup?

A) Enable an encrypted read replica on RDS for MySQl. Promote the encrypted read replica to primary. Remove the original database instance.
B) Enable default encryption for the Amazon S3 bucket where backups are stored
C) Modify the backup section of the database configuration to toggle the Enable encryption check box.
D) Create a snapshot of the database. Copy it to an encrypted snapshot. Restore the database from the encrypted snapshot.



5. A company is migrating a NoSQL database cluster to Amazon EC2. The database automatically replicates data to maintain at least three copies of the data. I/O throughput of theWhich instance type should a solutions architect recommend for the migration?

A) Memory optimized instances with Amazon Elastic Block Store (Amazon EBS) optimization enabled
B) Storage optimized instances with instance store
C) Burstable general purpose instances with an Amazon Elastic Block Store (Amazon EBS) volume
D) Compute optimized instances with Amazon Elastic Block Store (Amazon EBS) optimization enabled