AWS Certified Solutions Architect Associate(SAA C03)

The AWS Certified Solutions Architect Associate(SAA C03) were last updated on today.

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Viewing questions 21-25 out of 990 questions

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Topic 1 - Exam A

Question #21 Topic 1

A solutions architect is developing a VPC architecture that includes multiple subnets. The architecture will host applications that use Amazon EC2 instances and Amazon RDS DB instances. The architecture consists of six subnets in two Availability Zones. Each Availability Zone includes a public subnet, a private subnet, and a dedicated subnet for databases. Only EC2 instances that run in the private subnets can have access to the RDS databases. Which solution will meet these requirements?

A Create a new route table that excludes the route to the public subnets' CIDR blocks. Associate the route table with the database subnets.
B Create a security group that denies inbound traffic from the security group that is assigned to instances in the public subnets. Attach the security group to the DB instances.
C Create a security group that allows inbound traffic from the security group that is assigned to instances in the private subnets. Attach the security group to the DB instances.
D Create a new peering connection between the public subnets and the private subnets. Create a different peering connection between the private subnets and the database subnets.

Suggested Answer: C
NOTE: Answer is :C
Explanation :The question requirement is for only EC2 instances that run in the private subnets to have access to the RDS databases. This can be achieved by creating a security group that allows inbound traffic from the security group that is assigned to instances in the private subnets and attaching the security group to the DB instances.

Question #22 Topic 1

A company runs an Oracle database on premises. As part of the company’s migration to AWS, the company wants to upgrade the database to the most recent available version. The company also wants to set up disaster recovery (DR) for the database. The company needs to minimize the operational overhead for normal operations and DR setup. The company also needs to maintain access to the database's underlying operating system. Which solution will meet these requirements?

A Migrate the Oracle database to an Amazon EC2 instance. Set up database replication to a different AWS Region.
B Migrate the Oracle database to Amazon RDS for Oracle. Activate Cross-Region automated backups to replicate the snapshots to another AWS Region.
C Migrate the Oracle database to Amazon RDS Custom for Oracle. Create a read replica for the database in another AWS Region.
D Migrate the Oracle database to Amazon RDS for Oracle. Create a standby database in another Availability Zone.

Suggested Answer: A
NOTE: -

Question #23 Topic 1

A company has a data ingestion workflow that includes the following components: An Amazon Simple Notification Service (Amazon SNS) topic that receives notifications about new data deliveries An AWS Lambda function that processes and stores the data The ingestion workflow occasionally fails because of network connectivity issues. When failure occurs, the corresponding data is not ingested unless the company manually reruns the job. What should a solutions architect do to ensure that all notifications are eventually processed?

A Configure the Lambda function for deployment across multiple Availability Zones.
B Modify the Lambda function's configuration to increase the CPU and memory allocations for the function.
C Configure the SNS topic’s retry strategy to increase both the number of retries and the wait time between retries.
D Configure an Amazon Simple Queue Service (Amazon SQS) queue as the on-failure destination. Modify the Lambda function to process messages in the queue.

Suggested Answer: D
NOTE: Answer is :D
Explanation :Configuring an Amazon Simple Queue Service (SQS) queue as the on-failure destination makes use of the built-in resilience and decoupling of the AWS Managed service. This way, if a message (or in the context of this workflow, a notification) can't be processed at the moment of arrival due to a failure in the Lambdas or in the network, it will be stored in the queue and the system will attempt to process it again later. This would ensure that when failure occurs, the corresponding data can be ingested when the system is back online, eliminating the need for the company to manually rerun the job.

Question #24 Topic 1

A company has an automobile sales website that stores its listings in a database on Amazon RDS. When an automobile is sold, the listing needs to be removed from the website and the data must be sent to multiple target systems. Which design should a solutions architect recommend?

A Create an AWS Lambda function triggered when the database on Amazon RDS is updated to send the information to an Amazon Simple Queue Service (Amazon SQS) queue for the targets to consume.
B Create an AWS Lambda function triggered when the database on Amazon RDS is updated to send the information to an Amazon Simple Queue Service (Amazon SQS) FIFO queue for the targets to consume.
C Subscribe to an RDS event notification and send an Amazon Simple Queue Service (Amazon SQS) queue fanned out to multiple Amazon Simple Notification Service (Amazon SNS) topics. Use AWS Lambda functions to update the targets.
D Subscribe to an RDS event notification and send an Amazon Simple Notification Service (Amazon SNS) topic fanned out to multiple Amazon Simple Queue Service (Amazon SQS) queues. Use AWS Lambda functions to update the targets.

Suggested Answer: D
NOTE: Answer is :D
Explanation :Option D allows the company to have the agility of receiving notifications when the database on Amazon RDS is updated. An Amazon Simple Notification Service (Amazon SNS) topic fanned out to multiple Amazon Simple Queue Service (Amazon SQS) queues can effectively distribute the message to multiple target systems. This ensures the information is quickly and effectively disseminated to all necessary targets. And then, updating the targets can be easily achieved by using AWS Lambda functions.

Question #25 Topic 1

A media company is evaluating the possibility of moving its systems to the AWS Cloud. The company needs at least 10 TB of storage with the maximum possible I/O performance for video processing, 300 TB of very durable storage for storing media content, and 900 TB of storage to meet requirements for archival media that is not in use anymore. Which set of services should a solutions architect recommend to meet these requirements?

A Amazon EBS for maximum performance, Amazon S3 for durable data storage, and Amazon S3 Glacier for archival storage
B Amazon EBS for maximum performance, Amazon EFS for durable data storage, and Amazon S3 Glacier for archival storage
C Amazon EC2 instance store for maximum performance, Amazon EFS for durable data storage, and Amazon S3 for archival storage
D Amazon EC2 instance store for maximum performance, Amazon S3 for durable data storage, and Amazon S3 Glacier for archival storage

Suggested Answer: D
NOTE: -