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Multiple ChoiceDesign Cost-Optimized Architectures
Question 1. A company is developing a new application that uses a relational database to store user data and application configurations. The company expects the application to have steady user growth. The company expects the database usage to be variable and read-heavy, with occasional writes. The company wants to cost-optimize the database solution. The company wants to use an AWS managed database solution that will provide the necessary performance. Which solution will meet these requirements MOST cost-effectively?
A. Deploy the database on Amazon RDS. Use Provisioned IOPS SSD storage to ensure consistent performance for read and write operations.
B. Deploy the database on Amazon Aurora Serveriess to automatically scale the database capacity based on actual usage to accommodate the workload.
C. Deploy the database on Amazon DynamoDB. Use on-demand capacity mode to automatically scale throughput to accommodate the workload.
D. Deploy the database on Amazon RDS Use magnetic storage and use read replicas to accommodate the workload
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Multiple ChoiceDesign High-Performing Architectures
Question 2. A company manages an application that stores data on an Amazon RDS for PostgreSQL Multi-AZ DB instance. High traffic on the application is causing increased latency for many read queries. A solutions architect must improve the performance of the application. Which solution will meet this requirement?
A. Enable Amazon RDS Performance Insights. Configure storage capacity to scale automatically.
B. Configure the DB instance to use DynamoDB Accelerator (DAX).
C. Create a read replica of the DB instance. Serve read traffic from the read replica.
D. Use Amazon Data Firehose between the application and Amazon RDS to increase the concurrency of database requests.
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Multiple ChoiceDesign Resilient Architectures
Question 3. A company hosts an ecommerce application on AWS by using Amazon EC2 instances. The EC2 instances are spread across three Availability Zones behind an Application Load Balancer ALB. The EC2 instances are in an Auto Scaling group. Some application users report that the application occasionally directs users who have already authenticated to the login page. The users must log in again. The company needs a solution that will prevent the application from redirecting authenticated users to the login page. Which solution will meet this requirement?
A. Manually terminate the EC2 instances. Wait for the Auto Scaling group to launch new EC2 instances automatically.
B. Configure the ALB to direct user activities to the appropriate EC2 instance through the IPv4 IP address of the instance that is registered as a target in the target group.
C. Apply session affinity with application-based stickiness at the target group level.
D. Configure the ALB to direct user activities to just one EC2 instance that is registered as a target in the target group.
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Multiple ChoiceDesign Cost-Optimized Architectures
Question 4. A company needs to archive an on-premises relational database. The company wants to retain the data. The company needs to be able to run SQL queries on the archived data to create annual reports. Which solution will meet these requirements with the LEAST operational overhead?
A. Use AWS Database Migration Service (AWS DMS) to migrate the on-premises database to an Amazon RDS instance. Retire the on-premises database. Maintain the RDS instance in a stopped state until the data is needed for reports.
B. Set up database replication from the on-premises database to an Amazon EC2 instance. Retire the on-premises database. Make a snapshot of the EC2 instance. Maintain the EC2 instance in a stopped state until the data is needed for reports.
C. Create a database backup on premises. Use AWS DataSync to transfer the data to Amazon S3. Create an S3 Lifecycle configuration to move the data to S3 Glacier Deep Archive. Restore the backup to Amazon EC2 instances to run reports.
D. Use AWS Database Migration Service (AWS DMS) to migrate the on-premises databases to Amazon S3 in Apache Parquet format. Store the data in S3 Glacier Flexible Retrieval. Use Amazon Athena to run reports.
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Multi SelectDesign High-Performing Architectures
Question 5. A company runs a web application that uses Amazon RDS for MySQL to store relational data. Data in the database does not change frequently. A solutions architect notices that during peak usage times, the database has performance issues when it serves the data. The company wants to improve the performance of the database. Which combination of steps will meet these requirements? (Select TWO.)
A. Integrate AWS WAF with the application.
B. Create a read replica for the database. Redirect read traffic to the read replica.
C. Create an Amazon ElastiCache (Memcached) cluster. Configure the application and the database to integrate with the cluster.
D. Use the Amazon S3 One Zone-Infrequent Access (S3 One Zone-IA) storage class to store the data that changes infrequently.
E. Migrate the database to Amazon DynamoDB. Configure the application to use the DynamoDB database.
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