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 1141
Exam Question
A company hosts its product information web pages on AWS. The existing solution uses multiple Amazon C2 instances behind an Application Load Balancer in an Auto Scaling group. The website also uses a custom DNS name and communicates with HTTPS only using a dedicated SSL certificate. The company is planning a new product launch and wants to be sure that users from around the world have the best possible experience on the new website.
What should a solutions architect do to meet these requirements?
A. Redesign the application to use Amazon CloudFront.
B. Redesign the application to use AWS Elastic Beanstalk.
C. Redesign the application to use a Network Load Balancer.
D. Redesign the application to use Amazon S3 static website hosting.
Correct Answer
A. Redesign the application to use Amazon CloudFront.
Explanation
To meet the requirements of providing the best possible experience for users around the world during a new product launch, a solutions architect should:
A. Redesign the application to use Amazon CloudFront.
Amazon CloudFront is a global content delivery network (CDN) service that accelerates the delivery of web content to users worldwide. By using CloudFront, the website can distribute its content across a network of edge locations, ensuring that users can access the content from a location that is geographically closer to them, reducing latency and improving performance.
In this case, by redesigning the application to use CloudFront, the company can leverage its global network of edge locations to deliver product information web pages to users from the nearest edge location. This helps minimize the latency and improves the overall user experience by reducing the time it takes to load web pages.
Option B, AWS Elastic Beanstalk, is a platform-as-a-service (PaaS) offering that simplifies the deployment and management of applications. While Elastic Beanstalk provides some performance benefits, it does not have the global edge network that CloudFront offers.
Option C, a Network Load Balancer, is primarily used for high-performance, low-latency network traffic routing within a VPC. It does not have the global reach and caching capabilities of CloudFront.
Option D, Amazon S3 static website hosting, is suitable for hosting static content but does not provide the same level of performance improvement and global reach as CloudFront.
Therefore, the best option to meet the requirements is A. Redesign the application to use Amazon CloudFront.
Question 1142
Exam Question
A solutions architect needs to design a low-latency solution for a static single-page application accessed by users utilizing a custom domain name. The solution must be serverless, encrypted in transit, and cost-effective.
Which combination of AWS services and features should the solutions architect use? (Choose two.)
A. Amazon S3
B. Amazon EC2
C. AWS Fargate
D. Amazon CloudFront
E. Elastic Load Balancer
Correct Answer
A. Amazon S3
D. Amazon CloudFront
Explanation
To meet the requirements of a low-latency, serverless, encrypted in transit, and cost-effective solution for a static single-page application accessed by users utilizing a custom domain name, a solutions architect should use the following combination of AWS services and features:
A. Amazon S3: Amazon S3 can be used to store and serve the static files of the single-page application. It provides high durability, scalability, and availability for the application assets.
D. Amazon CloudFront: Amazon CloudFront is a content delivery network (CDN) service that can be used to distribute the application’s content globally. CloudFront caches the content at edge locations, reducing latency and improving performance for users around the world. CloudFront can also be configured to use a custom domain name for accessing the application.
By using Amazon S3 to host the static files of the single-page application, the solution can benefit from the durability and scalability of S3. Users can access the application assets directly from S3.
To achieve low-latency and improved performance, Amazon CloudFront can be used as a CDN in front of the S3 bucket. CloudFront will cache the application assets at edge locations globally, reducing the latency for users by serving content from the nearest edge location.
Option B, Amazon EC2, is not necessary for a serverless solution. EC2 is a virtual server service and would require server management and provisioning, which goes against the requirement of a serverless architecture.
Option C, AWS Fargate, is a container service that also requires server management and provisioning, which is not needed for a serverless architecture.
Option E, Elastic Load Balancer, is used for distributing incoming network traffic across multiple targets, such as EC2 instances. It is not necessary for a serverless static single-page application.
Therefore, the best options to meet the requirements are A. Amazon S3 and D. Amazon CloudFront.
Question 1143
Exam Question
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 Redis
D. Amazon ElastiCache for Memcached
Correct Answer
C. Amazon ElastiCache for Redis
Explanation
For a media streaming company that requires an in-memory database storage solution with high availability and data replication for improved performance, the recommended database is C. Amazon ElastiCache for Redis.
Amazon ElastiCache is a fully managed in-memory data store service provided by AWS. It supports popular in-memory engines such as Redis and Memcached. Redis, in particular, is well-suited for real-time data and offers high performance, data replication, and durability.
The advantages of using Amazon ElastiCache for Redis in this scenario are:
- In-Memory Storage: Redis stores data in memory, which provides faster read and write operations compared to disk-based database systems.
- High Availability: ElastiCache for Redis supports replication, allowing you to create replicas of your Redis nodes for increased availability and data durability.
- Performance: Redis is optimized for performance and can handle high throughput and low-latency workloads, making it suitable for real-time data scenarios.
- Scalability: ElastiCache for Redis can be easily scaled horizontally by adding or removing nodes to meet the changing demands of the media streaming application.
Options A and B, Amazon RDS for MySQL and Amazon RDS for PostgreSQL, are disk-based relational database services and do not provide the same level of in-memory performance as ElastiCache for Redis.
Option D, Amazon ElastiCache for Memcached, is also an in-memory caching service, but it lacks the data replication capabilities offered by Redis, which is important for high availability.
Therefore, C. Amazon ElastiCache for Redis is the most suitable choice for the requirements described.
Question 1144
Exam Question
A company has an application with a REST-based Interface that allows data to be received in near-real time from a third-party vendor Once received, the application processes and stores the data for further analysis. The application Is running on Amazon EC2 instances. The third-party vendor has received many 503 Service Unavailable Errors when sending data to the application. When the data volume spikes, the compute capacity reaches its maximum limit and the application is unable to process all requests.
Which design should a solutions architect recommend to provide a more scalable solution?
A. Use Amazon Kinesis Data Streams to ingest the data. Process the data using AWS Lambda functions.
B. Use Amazon API Gateway on top of the existing application. Create a usage plan with a quota limit for the third-party vendor.
C. Use Amazon Simple Notification Service (Amazon SNS) to ingest the data. Put the EC2 instances in an Auto Scaling group behind an Application Load Balancer.
D. Repackage the application as a container. Deploy the application using Amazon Elastic Container Service (Amazon ECS) using the EC2 launch type with an Auto Scaling group.
Correct Answer
A. Use Amazon Kinesis Data Streams to ingest the data. Process the data using AWS Lambda functions.
Explanation
To provide a more scalable solution for the application that receives near-real-time data from a third-party vendor and is currently experiencing capacity issues, a solutions architect should recommend option A: Use Amazon Kinesis Data Streams to ingest the data and process it using AWS Lambda functions.
Amazon Kinesis Data Streams is a scalable and durable real-time data streaming service. It can handle high data ingestion rates and provides the ability to process and analyze the data in real time. By using Kinesis Data Streams to ingest the data, the application can decouple the ingestion process from the processing and storage, allowing for better scalability.
AWS Lambda functions can be integrated with Kinesis Data Streams to process the incoming data. Lambda functions are serverless and automatically scale based on the incoming event rate, ensuring that the application can handle spikes in data volume without reaching its maximum compute capacity.
Option B, using Amazon API Gateway with a usage plan and quota limit, may help manage the API usage, but it does not address the scalability issue of the compute capacity being reached during high data volume spikes.
Option C, using Amazon Simple Notification Service (SNS) to ingest the data and an Auto Scaling group behind an Application Load Balancer, does not provide the real-time data streaming capabilities needed for near-real-time processing.
Option D, repackaging the application as a container and deploying it using Amazon Elastic Container Service (ECS) with an Auto Scaling group, may help with scalability, but it does not provide the same level of real-time data ingestion and processing capabilities as Amazon Kinesis Data Streams and AWS Lambda.
Therefore, option A is the recommended design for a more scalable solution.
Question 1145
Exam Question
A company runs an application on a group of Amazon Linux EC2 instances. The application writes log files using standard API calls. For compliance reasons, all log files must be retained indefinitely and will be analyzed by a reporting tool that must access all files concurrently.
Which storage service should a solutions architect use to provide the MOST cost-effective solution?
A. Amazon EBS
B. Amazon EFS
C. Amazon EC2 instance store
D. Amazon S3
Correct Answer
D. Amazon S3
Explanation
To provide the most cost-effective solution for retaining log files indefinitely and enabling concurrent access by a reporting tool, a solutions architect should use Amazon S3 (option D).
Amazon S3 (Simple Storage Service) is a highly durable and scalable object storage service. It is designed to store and retrieve large amounts of data at a low cost. With S3, log files can be stored for as long as required without incurring additional costs for retention.
S3 provides excellent durability and availability, ensuring that log files are safely stored and accessible when needed. It also offers fine-grained access control, allowing the reporting tool to concurrently access and analyze the log files.
In contrast, options A (Amazon EBS), B (Amazon EFS), and C (Amazon EC2 instance store) are not as suitable for this scenario:
- Amazon EBS (Elastic Block Store) provides block-level storage volumes for EC2 instances but is not well-suited for storing and accessing large amounts of data concurrently from multiple instances.
- Amazon EFS (Elastic File System) is a managed file storage service that can be mounted on multiple EC2 instances, but it may not provide the most cost-effective solution for indefinitely retaining log files.
- Amazon EC2 instance store refers to the ephemeral storage that is directly attached to an EC2 instance. However, instance store does not offer the durability and persistence required for long-term log file retention.
Therefore, Amazon S3 is the recommended storage service in this scenario, providing a cost-effective and durable solution for retaining log files and enabling concurrent access by the reporting tool.
Question 1146
Exam Question
A company recently deployed a two-tier application in two Availability Zones in the us-east-1 Region. The databases are deployed in a private subnet while the web servers are deployed in a public subnet. An internet gateway is attached to the VPC. The application and database run on Amazon EC2 instances. The database servers are unable to access patches on the internet. A solutions architect needs to design a solution that maintains database security with the least operational overhead.
Which solution meets these requirements?
A. Deploy a NAT gateway inside the public subnet for each Availability Zone and associate it with an Elastic IP address. Update the routing table of the private subnet to use it as the default route.
B. Deploy a NAT gateway inside the private subnet for each Availability Zone and associate it with an Elastic IP address. Update the routing table of the private subnet to use it as the default route.
C. Deploy two NAT instances inside the public subnet for each Availability Zone and associate them with Elastic IP addresses. Update the routing table of the private subnet to use it as the default route.
D. Deploy two NAT instances inside the private subnet for each Availability Zone and associate them with Elastic IP addresses. Update the routing table of the private subnet to use it as the default route.
Correct Answer
B. Deploy a NAT gateway inside the private subnet for each Availability Zone and associate it with an Elastic IP address. Update the routing table of the private subnet to use it as the default route.
Explanation
To enable the database servers in the private subnet to access patches on the internet while maintaining security and minimizing operational overhead, the recommended solution is:
B. Deploy a NAT gateway inside the private subnet for each Availability Zone and associate it with an Elastic IP address. Update the routing table of the private subnet to use it as the default route.
By deploying a NAT (Network Address Translation) gateway in the private subnet, the database servers can securely access the internet to download patches and updates without exposing them directly to the public internet. The NAT gateway acts as a middleman, allowing outbound internet traffic from the private subnet while blocking inbound traffic.
Using a NAT gateway is the preferred option because it is a fully managed service provided by AWS, offering high availability, scalability, and improved performance compared to NAT instances (option C and D). With a NAT gateway, there is no need to manage and maintain EC2 instances as in the case of NAT instances.
Option A, deploying a NAT gateway in the public subnet, is not recommended as it would expose the database servers to the public internet, compromising security.
Therefore, option B is the best choice for maintaining database security with the least operational overhead in this scenario.
Question 1147
Exam Question
A company has a multi-tier application that runs six front-end web servers in an Amazon EC2 Auto Scaling group in a single Availability Zone behind an Application Load Balancer (ALB). A solutions architect needs to modify the infrastructure to be highly available without modifying the application.
Which architecture should the solutions architect choose that provides high availability?
A. Create an Auto Scaling group that uses three instances across each of two Regions.
B. Modify the Auto Scaling group to use three instances across each of two Availability Zones.
C. Create an Auto Scaling template that can be used to quickly create more instances in another Region.
D. Change the ALB in front of the Amazon EC2 instances in a round-robin configuration to balance traffic to the web tier.
Correct Answer
B. Modify the Auto Scaling group to use three instances across each of two Availability Zones.
Explanation
To provide high availability for the multi-tier application without modifying the application, the recommended architecture is:
B. Modify the Auto Scaling group to use three instances across each of two Availability Zones.
By modifying the Auto Scaling group to use multiple Availability Zones, you ensure that your application remains available even if one Availability Zone becomes unavailable. With three instances in each Availability Zone, you have redundancy and fault tolerance in case of instance failures or AZ-level outages.
Option A, creating an Auto Scaling group across two Regions, introduces additional complexity and may require modifications to the application to handle cross-region communication and data replication. This is not necessary if high availability can be achieved within a single Region.
Option C, creating an Auto Scaling template for another Region, is not the optimal solution as it involves duplicating the infrastructure in a separate Region, which may not be necessary for achieving high availability within the current Region.
Option D, changing the ALB to a round-robin configuration, does not address the high availability requirement. Round-robin load balancing distributes traffic evenly across instances but does not provide redundancy in case of failures.
Therefore, option B is the best choice as it provides high availability by leveraging multiple Availability Zones within the same Region while avoiding the need for application modifications.
Question 1148
Exam Question
A company wants to migrate a workload to AWS. The chief information security officer requires that all data be encrypted at rest when stored in the cloud. The company wants complete control of encryption key lifecycle management.
The company must be able to immediately remove the key material and audit key usage independently of AWS CloudTrail. The chosen services should integrate with other storage services that will be used on AWS.
Which services satisfy these security requirements?
A. AWS CloudHSM with the CloudHSM client
B. AWS Key Management Service (AWS KMS) with AWS CloudHSM
C. AWS Key Management Service (AWS KMS) with an external key material origin
D. AWS Key Management Service (AWS KMS) with AWS managed customer master keys (CMKs)
Correct Answer
C. AWS Key Management Service (AWS KMS) with an external key material origin
Explanation
The security requirements of encrypting data at rest, having control over encryption key lifecycle management, and the ability to immediately remove key material and audit key usage independently of AWS CloudTrail can be satisfied by:
C. AWS Key Management Service (AWS KMS) with an external key material origin.
AWS KMS allows you to create and manage encryption keys for use with various AWS services, including storage services. With an external key material origin, you have complete control over the lifecycle of the encryption keys, including key generation, storage, and removal.
By using an external key material origin, you can bring your own key (BYOK) to AWS KMS, enabling you to manage the key material independently and securely. This ensures that AWS does not have access to the key material and provides the desired control over key lifecycle management.
Integrating with other storage services on AWS, such as Amazon S3 or Amazon EBS, is possible with AWS KMS. You can specify AWS KMS keys to encrypt and decrypt data stored in these services, providing encryption at rest for your workload.
Options A, B, and D do not satisfy the requirement of having complete control over key lifecycle management and the ability to immediately remove key material independently of AWS CloudTrail. Option A (AWS CloudHSM) provides hardware-based key storage and management but does not integrate well with other storage services. Option B (AWS KMS with AWS CloudHSM) combines AWS KMS with a hardware security module (HSM) but does not fulfill the requirement of key lifecycle management. Option D (AWS KMS with AWS managed customer master keys) provides key management by AWS but does not meet the requirement of having complete control over key lifecycle management.
Question 1149
Exam Question
A company hosts an application on multiple Amazon EC2 instances. The application processes messages from an Amazon SQS queue, writes for an Amazon RDS table, and deletes — the message from the queue. Occasional duplicate records are found in the RDS table. The SQS queue does not contain any duplicate messages.
What should a solutions architect do to ensure messages are being processed once only?
A. Use the CreateQueue API call to create a new queue.
B. Use the AddPermission API call to add appropriate permissions.
C. Use the ReceiveMessage API call to set an appropriate wait time.
D. Use the ChangeMessageVisibility API call to increase the visibility timeout.
Correct Answer
C. Use the ReceiveMessage API call to set an appropriate wait time.
Explanation
To ensure messages are processed only once and avoid duplicate records in the Amazon RDS table, a solutions architect should:
C. Use the ReceiveMessage API call to set an appropriate wait time.
By setting an appropriate wait time when calling the ReceiveMessage API, you can control how long the message will remain invisible to other consumers after it has been retrieved from the queue by one of the EC2 instances. This gives the EC2 instance enough time to process and delete the message from the queue before it becomes visible again. By properly managing the visibility timeout, you can ensure that messages are processed once only.
Options A, B, and D are not applicable to solving the issue of duplicate records. Option A (CreateQueue API call) creates a new queue, which does not address the problem of duplicate records. Option B (AddPermission API call) is used to grant permissions to other AWS accounts or IAM users, but it does not solve the issue of duplicate records. Option D (ChangeMessageVisibility API call) is used to change the visibility timeout for a specific message, but it does not prevent duplicates from being inserted into the RDS table.
Question 1150
Exam Question
A company has global users accessing an application deployed in different AWS Regions, exposing public static IP addresses. The users are experiencing poor performance when accessing the application over the internet.
What should a solutions architect recommend to reduce internet latency?
A. Set up AWS Global Accelerator and add endpoints.
B. Set up AWS Direct Connect locations in multiple Regions.
C. Set up an Amazon CloudFront distribution to access an application.
D. Set up an Amazon Route 53 geo proximity routing policy to route traffic.
Correct Answer
A. Set up AWS Global Accelerator and add endpoints.
Explanation
To reduce internet latency for global users accessing an application deployed in different AWS Regions, a solutions architect should recommend:
A. Set up AWS Global Accelerator and add endpoints.
AWS Global Accelerator is a service that improves the availability and performance of your applications by directing traffic to optimal endpoints. By setting up AWS Global Accelerator and adding endpoints in different AWS Regions where the application is deployed, user traffic can be intelligently routed to the nearest and most responsive endpoint, reducing latency and improving performance.
Option B (AWS Direct Connect) is used for establishing dedicated network connections between on-premises locations and AWS, but it does not directly address internet latency for users accessing the application over the internet.
Option C (Amazon CloudFront) is a content delivery network (CDN) that helps deliver content to users with low latency and high transfer speeds. While it can improve performance by caching content at edge locations, it may not directly reduce internet latency for users accessing the application.
Option D (Amazon Route 53 geo proximity routing) is a routing policy in Amazon Route 53 that can route traffic based on the geographic location of the user. While it can help direct users to the closest endpoint, it may not directly reduce internet latency for users accessing the application.
Therefore, the most suitable option to reduce internet latency in this scenario is to set up AWS Global Accelerator and add endpoints.
