1. A media streaming company collects real-time data and stores it in a disk-optimized database system. The company is not getting the expected throughput and wants an in-memory database storage solution that performs faster and provides high availability using data replication.Which database should a solutions architect recommend?

A) Amazon RDS for MySQL
B) Amazon RDS for PostgreSQL.
C) Amazon ElastiCache for Memcached
D) Amazon ElastiCache for Redis



2. A company wants to migrate a high performance computing (HPC) application and data from on-premises to the AWS cloud. The company uses tiered storage on premises with hot high-performance parallel storage to support the application during periodic runs of the application, and more economical cold storage to hold the data when the application is not actively running.Which combination of solutions should a solutions architect recommend to support the storage needs of the application? Select two(Select 2answers)

A) Amazon FSx for Lustre for high-performance parallel storage.
B) Amazon S3 for cold data storage.
C) Amazon S3 for high-performance parallel storage
D) Amazon FSx for Windows for high-performance parallel storage
E) Amazon EFS for cold data storage


3. A marketing company is storing CSV files in an Amazon S3 bucket for statistical analysis. An application on an Amazon EC2 instance needs permission to efficiently process the CSV data stored in the S3 bucket. Which action will MOST securely grant the EC2 instance access to the S3 bucket?

A) Associate an IAM role with least privilege permissions to the EC2 instance profile.
B) Store AWS credentials directly on the EC2 instance for applications on the instance to use for API calls.
C) Attach a resource-based policy to the S3 bucket.
D) Create an IAM user for the application with specific permission to the S3 bucket.



4. A solution architect is designing a new service behind Amazon API Gateway. The request patterns for the service will be unpredictable and can change suddenly from 0 requests to over 500 per second. The total size of the data that needs to be persisted in a backend database is currently less than 1 GB with unpredictable future growth. Data can be queries using simple key-value requests.Which combination of AWS services would meet these requirements? Select two(Select 2answers)

A) MySQL-compatible Amazon Auroro
B) Amazon EC2 Auto Scaling
C) Amazon DynamoDB
D) AWS Fargate
E) AWS Lambda


5. A security team wants to limit access to specific services or actions in all of the team's AWS accounts. All accounts belong to a large organization in AWS organizations. The solution must be scalable and there must be a single point where permissions can be maintained.What should a solutions architect do to accomplish this?

A) Create cross-account roles in each account to deny access to the services or actions.
B) Create a service control policy in the root organizational until to deny access to the services or actions.
C) Create a security group to allow accounts and attach it to user groups.
D) Create an ACL to provide access to the services or actions.