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Amazon SAA-C03 (Amazon AWS Certified Solutions Architect - Associate) Certification Exam is a highly sought-after certification in the field of cloud computing. AWS has become one of the most widely used cloud computing platforms in the world, and the SAA-C03 certification is the ideal way to demonstrate one's expertise in AWS solutions architecture. AWS Certified Solutions Architect - Associate certification validates the knowledge and skills required to design and deploy scalable, highly available, and fault-tolerant systems on AWS.

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Amazon AWS Certified Solutions Architect - Associate Sample Questions (Q1045-Q1050):

NEW QUESTION # 1045
A company hosts an application in a private subnet. The company has already integrated the application with Amazon Cognito. The company uses an Amazon Cognito user pool to authenticate users.
The company needs to modify the application so the application can securely store user documents in an Amazon S3 bucket.
Which combination of steps will securely integrate Amazon S3 with the application? (Select TWO.)

A. Create an Amazon Cognito identity pool to generate secure Amazon S3 access tokens for users when they successfully log in.
B. Create an Amazon S3 VPC endpoint in the same VPC where the company hosts the application.
C. Attach a policy to the S3 bucket that allows access only from the users' IP addresses.
D. Create a NAT gateway in the VPC where the company hosts the application. Assign a policy to the S3 bucket to deny any request that is not initiated from Amazon Cognito.
E. Use the existing Amazon Cognito user pool to generate Amazon S3 access tokens for users when they successfully log in.

Answer: A,B

Explanation:
To securely integrate Amazon S3 with an application that uses Amazon Cognito for user authentication, the following two steps are essential:
Step 1: Create an Amazon Cognito Identity Pool (Option A)
Amazon Cognito Identity Poolsallow users to obtain temporary AWS credentials to access AWS resources, such as Amazon S3, after successfully authenticating with the Cognito user pool. The identity pool bridges the gap between user authentication and AWS service access by generating temporary credentials using AWS Identity and Access Management (IAM).
Once a user logs in using theCognito User Pool, the identity pool providesIAM roles with specific permissionsthat the application can use to access S3 securely. This ensures that each user has appropriate access controls while accessing the S3 bucket.
This is a secure way to ensure that users only have temporary and least-privilege access to the S3 bucket for their documents.
Step 2: Create an Amazon S3 VPC Endpoint (Option C)
By creating anAmazon S3 VPC endpoint, the company ensures that communication between the application (which is hosted in a private subnet) and the S3 bucket occurs over theAWS private network, without the need to traverse the internet. This enhances security and prevents exposure of data to public networks.
TheVPC endpointallows the application to access the S3 bucket privately and securely within the VPC. It also ensures that traffic stays within the AWS network, reducing attack surface and improving overall security.
Why the Other Options Are Incorrect:
Option B: This is incorrect becauseAmazon Cognito User Poolsare used for user authentication, not for generating S3 access tokens. To provide S3 access, you need to useAmazon Cognito Identity Pools, which offer AWS credentials.
Option D: ANAT gatewayis unnecessary in this scenario. Using aVPC endpointfor S3 access provides a more secure and cost-effective solution by keeping traffic within AWS.
Option E: Attaching a policy to restrict access based on IP addresses is not scalable or efficient. It would require managing users' dynamic IP addresses, which is not an effective security measure for this use case.
AWS References:
Amazon Cognito Identity Pools
Amazon VPC Endpoints for S3

NEW QUESTION # 1046
A company has a highly dynamic batch processing job that uses many Amazon EC2 instances to complete it. The job is stateless in nature, can be started and stopped at any given time with no negative impact, and typically takes upwards of 60 minutes total to complete. The company has asked a solutions architect to design a scalable and cost-effective solution that meets the requirements of the job.
What should the solutions architect recommend?

A. Implement EC2 Spot Instances
B. Implement EC2 On-Demand Instances
C. Purchase EC2 Reserved Instances
D. Implement the processing on AWS Lambda

Answer: A

NEW QUESTION # 1047
A company recently launched a variety of new workloads on Amazon EC2 instances in its AWS account. The company needs to create a strategy to access and administer the instances remotely and securely. The company needs to implement a repeatable process that works with native AWS services and follows the AWS Well-Architected Framework.
Which solution will meet these requirements with the LEAST operational overhead?

A. Establish an AWS Site-to-Site VPN connection. Instruct administrators to use their local on-premises machines to connect directly to the instances by using SSH keys across the VPN tunnel.
B. Create an administrative SSH key pair. Load the public key into each EC2 instance. Deploy a bastion host in a public subnet to provide a tunnel for administration of each instance.
C. Use the EC2 serial console to directly access the terminal interface of each instance for administration.
D. Attach the appropriate IAM role to each existing instance and new instance. Use AWS Systems Manager Session Manager to establish a remote SSH session.

Answer: D

Explanation:
Explanation
https://docs.aws.amazon.com/systems-manager/latest/userguide/setup-launch-managed-instance.html

NEW QUESTION # 1048
An entertainment company is using Amazon DynamoDB to store media metadat a. The application is read intensive and experiencing delays. The company does not have staff to handle additional operational overhead and needs to improve the performance efficiency of DynamoDB without reconfiguring the application.
What should a solutions architect recommend to meet this requirement?

A. Use Amazon ElastiCache for Redis.
B. Use Amazon DynamoDB Accelerator (DAX).
C. Use Amazon ElastiCache for Memcached with Auto Discovery enabled.
D. Replicate data by using DynamoDB global tables.

Answer: B

Explanation:
https://aws.amazon.com/dynamodb/dax/

NEW QUESTION # 1049
A company wants to provide a third-party system that runs in a private data center with access to its AWS account. The company wants to call AWS APIs directly from the third-party system. The company has an existing process for managing digital certificates. The company does not want to use SAML or OpenID Connect (OIDC) capabilities and does not want to store long-term AWS credentials.
Which solution will meet these requirements?

A. Configure AWS Signature Version 4 to authenticate incoming HTTPS requests to AWS APIs.
B. Configure mutual TLS to allow authentication of the client and server sides of the communication channel.
C. Configure Kerberos to exchange tickets for assertions that can be validated by AWS APIs.
D. Configure AWS Identity and Access Management (IAM) Roles Anywhere to exchange X.509 certificates for AWS credentials to interact with AWS APIs.

Answer: D

Explanation:
* A. Mutual TLS: Provides secure communication but does not integrate with AWS credential exchange.
* B. AWS Signature v4: Requires direct integration with AWS and is less secure for external systems.
* C. Kerberos: Not natively supported for AWS API authentication.
* D. IAM Roles Anywhere: Enables AWS API access using X.509 certificates without long-term credentials.
References: IAM Roles Anywhere

NEW QUESTION # 1050
......

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