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Amazon SAA-C03 Certification Exam is a comprehensive exam that requires a thorough understanding of AWS services and the ability to apply that knowledge to real-world scenarios. Candidates who pass the exam demonstrate their ability to design and deploy AWS infrastructure, including compute, storage, networking, and security services. They also demonstrate their capability to optimize AWS services for performance, cost, and scalability.

Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam Sample Questions (Q822-Q827):

NEW QUESTION # 822
A newly hired Solutions Architect is checking all of the security groups and network access control list rules of the company's AWS resources. For security purposes, the MS SQL connection via port 1433 of the database tier should be secured. Below is the security group configuration of their Microsoft SQL Server database:

The application tier hosted in an Auto Scaling group of EC2 instances is the only identified resource that needs to connect to the database. The Architect should ensure that the architecture complies with the best practice of granting least privilege.
Which of the following changes should be made to the security group configuration?

A. For the MS SQL rule, change the Source to the static AnyCast IP address attached to the application tier.
B. For the MS SQL rule, change the Source to the EC2 instance IDs of the underlying instances of the Auto Scaling group.
C. For the MS SQL rule, change the Source to the security group ID attached to the application tier.
D. For the MS SQL rule, change the Source to the Network ACL ID attached to the application tier.

Answer: C

Explanation:
A security group acts as a virtual firewall for your instance to control inbound and outbound traffic. When you launch an instance in a VPC, you can assign up to five security groups to the instance. Security groups act at the instance level, not the subnet level. Therefore, each instance in a subnet in your VPC can be assigned to a different set of security groups.
If you launch an instance using the Amazon EC2 API or a command line tool and you don't specify a security group, the instance is automatically assigned to the default security group for the VPC. If you launch an instance using the Amazon EC2 console, you have an option to create a new security group for the instance.

For each security group, you add rules that control the inbound traffic to instances, and a separate set of rules that control the outbound traffic. This section describes the basic things that you need to know about security groups for your VPC and their rules.
Amazon security groups and network ACLs don't filter traffic to or from link-local addresses (169.254.0.0/16) or AWS reserved IPv4 addresses (these are the first four IPv4 addresses of the subnet, including the Amazon DNS server address for the VPC). Similarly, flow logs do not capture IP traffic to or from these addresses.
In the scenario, the security group configuration allows any server (0.0.0.0/0) from anywhere to establish an MS SQL connection to the database via the 1433 port. The most suitable solution here is to change the Source field to the security group ID attached to the application tier.
Hence, the correct answer is the option that says: For the MS SQL rule, change the Source to the security group ID attached to the application tier.
The option that says: For the MS SQL rule, change the Source to the EC2 instance IDs of the underlying instances of the Auto Scaling group is incorrect because using the EC2 instance IDs of the underlying instances of the Auto Scaling group as the source can cause intermittent issues. New instances will be added and old instances will be removed from the Auto Scaling group over time, which means that you have to manually update the security group setting once again. A better solution is to use the security group ID of the Auto Scaling group of EC2 instances.
The option that says: For the MS SQL rule, change the Source to the static AnyCast IP address attached to the application tier is incorrect because a static AnyCast IP address is primarily used for AWS Global Accelerator and not for security group configurations.
The option that says: For the MS SQL rule, change the Source to the Network ACL ID attached to the application tier is incorrect because you have to use the security group ID instead of the Network ACL ID of the application tier. Take note that the Network ACL covers the entire subnet which means that other applications that use the same subnet will also be affected. References:
https://docs.aws.amazon.com/vpc/latest/userguide/VPC_SecurityGroups.html
https://docs.aws.amazon.com/vpc/latest/userguide/VPC_Security.html

NEW QUESTION # 823
A company hosts its web application on AWS using seven Amazon EC2 instances. The company requires that the IP addresses of all healthy EC2 instances be returned in response to DNS queries.
Which policy should be used to meet this requirement?

A. Geolocation routing policy
B. Multivalue routing policy
C. Latency routing policy
D. Simple routing policy

Answer: B

Explanation:
Use a multivalue answer routing policy to help distribute DNS responses across multiple resources. For example, use multivalue answer routing when you want to associate your routing records with a Route 53 health check. For example, use multivalue answer routing when you need to return multiple values for a DNS query and route traffic to multiple IP addresses. https://aws.amazon.com/premiumsupport/knowledge-center
/multivalue-versus-simple-policies/

NEW QUESTION # 824
A solutions architect is designing a workload that will store hourly energy consumption by business tenants in a building. The sensors will feed a database through HTTP requests that will add up usage for each tenant.
The solutions architect must use managed services when possible. The workload will receive more features in the future as the solutions architect adds independent components.
Which solution will meet these requirements with the LEAST operational overhead?

A. Use Amazon API Gateway with AWS Lambda functions to receive the data from the sensors, process the data, and store the data in an Amazon DynamoDB table.
B. Use an Elastic Load Balancer that is supported by an Auto Scaling group of Amazon EC2 instances to receive and process the data from the sensors. Use an Amazon S3 bucket to store the processed data.
C. Use an Elastic Load Balancer that is supported by an Auto Scaling group of Amazon EC2 instances to receive and process the data from the sensors. Use an Amazon Elastic File System (Amazon EFS) shared file system to store the processed data.
D. Use Amazon API Gateway with AWS Lambda functions to receive the data from the sensors, process the data, and store the data in a Microsoft SQL Server Express database on an Amazon EC2 instance.

Answer: A

Explanation:
To use an event-driven programming model with AWS Lambda and reduce operational overhead, Amazon API Gateway and Amazon DynamoDB are suitable solutions. Amazon API Gateway can receive the data from the sensors and invoke AWS Lambda functions to process the data. AWS Lambda can run code without provisioning or managing servers, and scale automatically with the incoming requests. Amazon DynamoDB can store the data in a fast and flexible NoSQL database that can handle any amount of data with consistent performance.
References:
* What Is Amazon API Gateway?
* What Is AWS Lambda?
* What Is Amazon DynamoDB?

NEW QUESTION # 825
A company has a large fleet of vehicles that are equipped with internet connectivity to send telemetry to the company. The company receives over 1 million data points every 5 minutes from the vehicles. The company uses the data in machine learning (ML) applications to predict vehicle maintenance needs and to preorder parts. The company produces visual reports based on the captured data. The company wants to migrate the telemetry ingestion, processing, and visualization workloads to AWS. Which solution will meet these requirements?

A. Use Amazon Timestream for LiveAnalytics to store the data points. Grant Amazon SageMaker permission to access the data for processing. Use Amazon QuickSight to visualize the data.
B. Use Amazon Timestream to for LiveAnalytics to store the data points. Grant Amazon SageMaker permission to access the data for processing. Use Amazon Athena to visualize the data.
C. Use Amazon Neptune to store the data points. Use Amazon Kinesis Data Streams to ingest data from Neptune into an AWS Lambda function for processing. Use Amazon QuickSight to visualize the data.
D. Use Amazon DynamoDB to store the data points. Use DynamoDB Connector to ingest data from DynamoDB into Amazon EMR for processing. Use Amazon QuickSight to visualize the data.

Answer: A

Explanation:
Amazon Timestream: Purpose-built time series database optimized for telemetry and IoT data ingestion and analytics.
* Amazon SageMaker: Provides ML capabilities for predictive maintenance workflows.
* Amazon QuickSight: Efficiently generates interactive, real-time visual reports from Timestream data.
* Optimized for Scale: Timestream efficiently handles large-scale telemetry data with time-series indexing and queries.
* Amazon Timestream Documentation

NEW QUESTION # 826
A solutions architect has created two IAM policies: Policy1 and Policy2. Both policies are attached to an IAM group.

A cloud engineer is added as an IAM user to the IAM group. Which action will the cloud engineer be able to perform?

A. Deleting Amazon EC2 instances
B. Deleting directories
C. Deleting logs from Amazon CloudWatch Logs
D. Deleting IAM users

Answer: A

Explanation:
https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ds/index.html

NEW QUESTION # 827
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Pass Guaranteed 2025 Amazon SAA-C03: Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam First-grade Latest Questions

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Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam Sample Questions (Q822-Q827):

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