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AWS Certified Solutions Architect – Associate SAA-C03 Exam Questions and Answers – Page 35

The latest AWS Certified Solutions Architect – Associate SAA-C03 certification actual real practice exam question and answer (Q&A) dumps are available free, which are helpful for you to pass the AWS Certified Solutions Architect – Associate SAA-C03 exam and earn AWS Certified Solutions Architect – Associate SAA-C03 certification.

Question 1061

Exam Question

A company has an on-premises data center that is running out of storage capacity. The company wants to migrate its storage infrastructure to AWS while minimizing bandwidth costs. The solution must allow for immediate retrieval of data at no additional cost.

How can these requirements be met?

A. Deploy Amazon S3 Glacier Vault and enable expedited retrieval. Enable provisioned retrieval capacity for the workload.
B. Deploy AWS Storage Gateway using cached volumes. Use Storage Gateway to store data in Amazon S3 while retaining copies of frequently accessed data subsets locally.
C. Deploy AWS Storage Gateway using stored volumes to store data locally. Use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3.
D. Deploy AWS Direct Connect to connect with the on-premises data center. Configure AWS Storage Gateway to store data locally. Use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3.

Correct Answer

B. Deploy AWS Storage Gateway using cached volumes. Use Storage Gateway to store data in Amazon S3 while retaining copies of frequently accessed data subsets locally.

Explanation

To meet the requirements of migrating storage infrastructure to AWS while minimizing bandwidth costs and enabling immediate retrieval of data at no additional cost, the recommended solution is:

B. Deploy AWS Storage Gateway using cached volumes. Use Storage Gateway to store data in Amazon S3 while retaining copies of frequently accessed data subsets locally.

By using AWS Storage Gateway with cached volumes, you can store data in Amazon S3 while keeping frequently accessed data subsets locally. This approach minimizes bandwidth costs by only transferring data that is not available locally when accessed. The frequently accessed data subsets are retained locally for immediate retrieval at no additional cost.

This solution allows for a seamless migration of storage infrastructure to AWS while providing low-latency access to frequently accessed data. It optimizes bandwidth usage by minimizing the transfer of data between the on-premises data center and AWS, resulting in cost savings.

Therefore, deploying AWS Storage Gateway with cached volumes is the recommended approach to meet the requirements effectively.

Question 1062

Exam Question

A development team is collaborating with another company to create an integrated product. The other company needs to access an Amazon Simple Queue Service (Amazon SQS) queue that is contained in the development team’s account. The other company wants to poll the queue without giving up its own account permissions to do so.

How should a solutions architect provide access to the SQS queue?

A. Create an instance profile that provides the other company access to the SQS queue.
B. Create an IAM policy that provides the other company access to the SQS queue.
C. Create an SQS access policy that provides the other company access to the SQS queue.
D. Create an Amazon Simple Notification Service (Amazon SNS) access policy that provides the other company access to the SQS queue.

Correct Answer

C. Create an SQS access policy that provides the other company access to the SQS queue.

Explanation

To provide access to the Amazon SQS queue in the development team’s account without giving up the other company’s account permissions, the recommended solution is:

C. Create an SQS access policy that provides the other company access to the SQS queue.

By creating an SQS access policy, you can define fine-grained permissions that allow the other company to access the specific SQS queue in the development team’s account. This approach allows for controlled access without granting unnecessary permissions to the other company’s account.

An IAM policy (option B) provides permissions within the same AWS account, so it would not be suitable for granting access to another company’s account.

An instance profile (option A) is used to grant permissions to an EC2 instance, and it is not applicable for providing access to an SQS queue in another account.

An Amazon SNS access policy (option D) is used to control access to Amazon SNS topics, not SQS queues.

Therefore, creating an SQS access policy is the appropriate solution for providing controlled access to the SQS queue for the other company.

Question 1063

Exam Question

An ecommerce company is running a multi-tier application on AWS. The front-end and backend tiers both run on Amazon EC2, and the database runs on Amazon RDS for MySQL. The backend tier communicates with the RDS instance. There are frequent calls to return identical datasets from the database that are causing performance slowdowns.

Which action should be taken to improve the performance of the backend?

A. Implement Amazon SNS to store the database calls.
B. Implement Amazon ElastiCache to cache the large datasets.
C. Implement an RDS for MySQL read replica to cache database calls.
D. Implement Amazon Kinesis Data Firehose to stream the calls to the database.

Correct Answer

B. Implement Amazon ElastiCache to cache the large datasets.

Explanation

To improve the performance of the backend tier in an ecommerce application with frequent calls to return identical datasets from the database, the recommended action is:

B. Implement Amazon ElastiCache to cache the large datasets.

Amazon ElastiCache is a fully managed in-memory data store service that can be used to cache frequently accessed data. By implementing ElastiCache, you can store the identical datasets in the cache, reducing the need to query the database repeatedly. This improves the performance of the backend tier by retrieving the data from the cache instead of making frequent calls to the database.

Implementing Amazon SNS (option A) would not directly address the performance issue related to database calls.

Implementing an RDS for MySQL read replica (option C) can improve read performance for read-heavy workloads, but it may not provide significant benefits for the issue of returning identical datasets from the database.

Implementing Amazon Kinesis Data Firehose (option D) is typically used for streaming and loading data into other services, but it does not directly address the performance issue related to database calls.

Therefore, implementing Amazon ElastiCache is the most suitable action to improve the performance of the backend by caching the large datasets and reducing the need for frequent database calls.

Question 1064

Exam Question

A company requires that all versions of objects in its Amazon S3 bucket be retained. Current object versions will be frequently accessed during the first 30 days, after which they will be rarely accessed and must be retrievable within 5 minutes. Previous object versions need to be kept forever, will be rarely accessed, and can be retrieved within 1 week. All storage solutions must be highly available and highly durable.

What should a solutions architect recommend to meet these requirements in the MOST cost-effective manner?

A. Create an S3 lifecycle policy for the bucket that moves current object versions from S3 Standard storage to S3 Glacier after 30 days and moves previous object versions to S3 Glacier after 1 day.
B. Create an S3 lifecycle policy for the bucket that moves current object versions from S3 Standard storage to S3 Glacier after 30 days and moves previous object versions to S3 Glacier Deep Archive after 1 day.
C. Create an S3 lifecycle policy for the bucket that moves current object versions from S3 Standard storage to S3 Standard-infrequent Access (S3 Standard-IA) after 30 days and moves previous object versions toS3 Glacier Deep Archive after 1 day.
D. Create an S3 lifecycle policy for the bucket that moves current object versions from S3 Standard storage to S3 One Zone-Infrequent Access (S3 One Zone-IA) after 30 days and moves previous object versions to S3 Glacier Deep Archive after 1 day.

Correct Answer

C. Create an S3 lifecycle policy for the bucket that moves current object versions from S3 Standard storage to S3 Standard-infrequent Access (S3 Standard-IA) after 30 days and moves previous object versions toS3 Glacier Deep Archive after 1 day.

Explanation

To meet the requirements of retaining all versions of objects in the Amazon S3 bucket, with frequent access to current versions for the first 30 days and rare access afterwards, as well as keeping previous versions forever with rare access, the most cost-effective solution would be:

C. Create an S3 lifecycle policy for the bucket that moves current object versions from S3 Standard storage to S3 Standard-Infrequent Access (S3 Standard-IA) after 30 days and moves previous object versions to S3 Glacier Deep Archive after 1 day.

By using an S3 lifecycle policy, you can automate the transition of object versions to different storage classes based on their age. In this case, the current object versions can be moved from S3 Standard to S3 Standard-Infrequent Access (S3 Standard-IA) after 30 days, which provides a lower-cost storage option for rarely accessed data. Previous object versions can be moved to S3 Glacier Deep Archive, which is the most cost-effective storage class for long-term archival data.

Using S3 Standard-IA for current versions ensures that they can be retrieved within 5 minutes, as it provides high availability and low latency. S3 Glacier Deep Archive, although optimized for long-term storage, still allows retrieval within 1 week, meeting the requirements for previous versions.

Option A (moving to S3 Glacier after 30 days) and option D (moving to S3 One Zone-Infrequent Access after 30 days) would not provide immediate access to the current versions after the first 30 days, which is a requirement.

Option B (moving to S3 Glacier Deep Archive after 1 day) would result in unnecessary costs for storing current versions in Glacier Deep Archive, as they are frequently accessed during the first 30 days.

Therefore, option C is the recommended choice as it balances cost-effectiveness and the need for frequent and long-term access to different versions of objects in the S3 bucket.

Question 1065

Exam Question

A company has a website running on Amazon EC2 instances across two Availability Zones. The company is expecting spikes in traffic on specific holidays, and wants to provide a consistent user experience.

How can a solutions architect meet this requirement?

A. Use step scaling.
B. Use simple scaling.
C. Use lifecycle hooks.
D. Use scheduled scaling.

Correct Answer

D. Use scheduled scaling.

Explanation

To meet the requirement of providing a consistent user experience during traffic spikes on specific holidays, a solutions architect can use:

D. Use scheduled scaling.

Scheduled scaling allows you to define specific time periods when you expect traffic spikes and automatically adjust the capacity of your EC2 instances accordingly. By setting up scheduled scaling, you can proactively increase the number of EC2 instances before the expected spike in traffic and then scale them down afterward. This ensures that your application can handle the increased load during holidays and provide a consistent user experience.

Option A (step scaling) and option B (simple scaling) are dynamic scaling options that adjust the capacity of your EC2 instances based on predefined conditions, such as CPU utilization or network traffic. While they can be useful for handling varying levels of traffic, they don’t specifically address the requirement of handling traffic spikes on specific holidays.

Option C (lifecycle hooks) is related to managing instances in an Auto Scaling group during the launch or termination process and is not directly applicable to handling traffic spikes.

Therefore, option D, using scheduled scaling, is the most appropriate solution for meeting the requirement of providing a consistent user experience during anticipated traffic spikes on specific holidays.

Question 1066

Exam Question

A company is reviewing a recent migration of a three-tier application to a VPC. The security team discovers that the principle of least privilege is not being applied to Amazon EC2 security group ingress and egress rules between the application tiers.

What should a solutions architect do to correct this issue?

A. Create security group rules using the instance ID as the source or destination.
B. Create security group rules using the security group ID as the source or destination.
C. Create security group rules using the VPC CIDR blocks as the source or destination.
D. Create security group rules using the subnet CIDR blocks as the source or destination.

Correct Answer

B. Create security group rules using the security group ID as the source or destination.

Explanation

To correct the issue of not applying the principle of least privilege to Amazon EC2 security group ingress and egress rules between application tiers, a solutions architect should:

B. Create security group rules using the security group ID as the source or destination.

By creating security group rules using the security group ID as the source or destination, you can enforce more granular and specific access controls between the application tiers. This approach ensures that only the necessary communication is allowed between the tiers, based on the defined security group rules.

Option A (using the instance ID as the source or destination) is not recommended because it does not provide the necessary flexibility when instances change or scale.

Option C (using the VPC CIDR blocks as the source or destination) would allow communication from any resource within the VPC, which may not adhere to the principle of least privilege and could introduce unnecessary risk.

Option D (using the subnet CIDR blocks as the source or destination) would also allow broader access within the same subnet, which may not be desired for maintaining a more secure environment.

Therefore, option B, creating security group rules using the security group ID as the source or destination, is the appropriate choice to enforce the principle of least privilege and ensure secure communication between the application tiers in the VPC.

Question 1067

Exam Question

A company must migrate 20 TB of data from a data center to the AWS Cloud within 30 days. The company’s network bandwidth is limited to 15 Mbps and cannot exceed 70% utilization.

What should a solutions architect do to meet these requirements?

A. Use AWS Snowball.
B. Use AWS DataSync.
C. Use a secure VPN connection.
D. Use Amazon S3 Transfer Acceleration.

Correct Answer

A. Use AWS Snowball.

Explanation

To meet the requirement of migrating 20 TB of data from a data center to the AWS Cloud within 30 days while considering the limited network bandwidth and utilization constraints, a solutions architect should:

A. Use AWS Snowball.

AWS Snowball is a physical data transport solution designed for large-scale data transfers. It enables offline data transfer by shipping a secure storage device directly to the customer’s location. The customer can load their data onto the Snowball device and then ship it back to AWS for data import.

In this scenario, using AWS Snowball would be the most suitable option. By utilizing AWS Snowball, the company can overcome the limitations of the limited network bandwidth and ensure efficient and timely data migration. The Snowball device allows for high-speed data transfer and eliminates the need for relying solely on the network bandwidth.

Option B, AWS DataSync, is a data transfer service that enables online data transfer between on-premises storage and AWS services. While DataSync can be used for ongoing data synchronization, it may not be the most efficient option for a one-time migration of a large amount of data within the given constraints.

Option C, a secure VPN connection, would still be limited by the available network bandwidth and may not provide the required speed to meet the migration deadline.

Option D, Amazon S3 Transfer Acceleration, is a feature that helps improve data transfer speed for Amazon S3. However, it relies on network connectivity and may not be sufficient to overcome the limitations of the limited network bandwidth and tight migration timeline.

Therefore, option A, using AWS Snowball, is the most appropriate choice for efficiently and securely migrating 20 TB of data within the given constraints.

Question 1068

Exam Question

A company is using Amazon DynamoDB with provisioned throughput for the database tier of its ecommerce website. During flash sales, customers experience periods of time when the database cannot handle the high number of transactions taking place. This causes the company to lose transactions. During normal periods, the database performs appropriately.

Which solution solves the performance problem the company faces?

A. Switch DynamoDB to on-demand mode during flash sales.
B. Implement DynamoDB Accelerator for fast in memory performance.
C. Use Amazon Kinesis to queue transactions for processing to DynamoDB.
D. Use Amazon Simple Queue Service (Amazon SQS) to queue transactions to DynamoDB.

Correct Answer

B. Implement DynamoDB Accelerator for fast in memory performance.

Explanation

To solve the performance problem during flash sales when the database cannot handle the high number of transactions, a solutions architect should:

B. Implement DynamoDB Accelerator (DAX) for fast in-memory performance.

DynamoDB Accelerator (DAX) is an in-memory cache for DynamoDB that can dramatically improve read performance. By integrating DAX with DynamoDB, frequently accessed data can be stored in the cache, reducing the need to access the underlying DynamoDB tables. This improves the response time and throughput for read-heavy workloads, such as during flash sales.

Switching DynamoDB to on-demand mode (option A) may help with handling sudden spikes in traffic, but it may also lead to unpredictable costs and potentially higher costs during high traffic periods.

Using Amazon Kinesis to queue transactions (option C) is typically used for real-time streaming data and is not the most appropriate solution for handling transactional workloads.

Using Amazon Simple Queue Service (Amazon SQS) to queue transactions (option D) could help decouple the transaction processing from DynamoDB, but it would not directly address the performance issue during flash sales.

Therefore, the best solution for improving the performance during flash sales is to implement DynamoDB Accelerator (DAX) to take advantage of its fast in-memory caching capabilities.

Question 1069

Exam Question

A company has an Amazon EC2 instance running on a private subnet that needs to access a public website to download patches and updates. The company does not want external websites to see the EC2 instance IP address or initiate connection to it.

How can a solution architect achieve this objective?

A. Create a site-to-site VPN connection between the private subnet and the network in which the public site is deployed.
B. Create a NAT gateway in a public subnet. Route outbound traffic from the private subnet through the NAI gateway.
C. Create a network ACL for the private subnet where the EC2 instance deployed only allows access from the IP address range of the public website.
D. Create a security group that only allows connections from the IP address range of the public website. Attach the security group to the EC2 instance.

Correct Answer

B. Create a NAT gateway in a public subnet. Route outbound traffic from the private subnet through the NAI gateway.

Explanation

To achieve the objective of allowing an Amazon EC2 instance in a private subnet to access a public website for downloading patches and updates while preventing external websites from seeing the EC2 instance IP address or initiating connections to it, a solution architect should:

B. Create a NAT gateway in a public subnet and route outbound traffic from the private subnet through the NAT gateway.

By creating a NAT gateway in a public subnet and configuring the private subnet’s route table to direct outbound traffic to the NAT gateway, the EC2 instance in the private subnet can access the internet using the NAT gateway’s public IP address. The NAT gateway acts as a middleman, so the public website only sees the public IP address of the NAT gateway and not the EC2 instance’s private IP address.

Option A (site-to-site VPN connection) is not necessary in this case as the goal is to access a public website, not establish a connection between private networks.

Option C (network ACL) can restrict inbound and outbound traffic at the subnet level but cannot hide the EC2 instance’s IP address from the public website.

Option D (security group) can control inbound and outbound traffic at the instance level, but it does not provide the IP address privacy required in this scenario.

Therefore, the most appropriate solution is to create a NAT gateway in a public subnet and route outbound traffic from the private subnet through the NAT gateway.

Question 1070

Exam Question

An application allows users at a company headquarters to access product data. The product data is stored in an Amazon RDS MySQL DB instance. The operations team has isolated an application performance slowdown and wants to separate read traffic from write traffic. A solutions architect needs to optimize the application performance quickly.

What should the solutions architect recommend?

A. Change the existing database to a Multi-AZ deployment. Serve the read requests from the primary Availability Zone.
B. Change the existing database to a Multi-AZ deployment. Serve the read requests from the secondary Availability Zone.
C. Create read replicas for the database. Configure the read replicas with half of the compute and storage resources as the source database.
D. Create read replicas for the database. Configure the read replicas with the same compute and storage resources as the source database.

Correct Answer

D. Create read replicas for the database. Configure the read replicas with the same compute and storage resources as the source database.

Explanation

To optimize the application performance by separating read traffic from write traffic in an Amazon RDS MySQL DB instance, the solutions architect should recommend:

D. Create read replicas for the database. Configure the read replicas with the same compute and storage resources as the source database.

Creating read replicas allows for offloading read traffic from the primary database, thereby improving performance. By configuring the read replicas with the same compute and storage resources as the source database, they can handle the read workload effectively. This setup enables parallel processing of read queries, distributing the load and enhancing overall application performance.

Option A suggests changing the existing database to a Multi-AZ deployment, but this does not separate read and write traffic.

Option B suggests serving read requests from the secondary Availability Zone, but it may not be the most efficient solution as it requires cross-zone communication and introduces additional latency.

Option C suggests creating read replicas with reduced compute and storage resources, but this may negatively impact performance if the replicas do not have sufficient resources to handle the read workload effectively.

Therefore, the best recommendation is to create read replicas for the database and configure them with the same compute and storage resources as the source database.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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