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AWS Certified Solutions Architect - Associate (SAA-C03)

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Questions updated at Jul 18, 2026, 1:30 PM CDT

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Question 1 of 10
Objective 4.4 Design Cost-Optimized Architectures

A business requires a dedicated, private connection between its on-premises data center and its Amazon Virtual Private Cloud (VPC) to ensure secure and reliable access to its applications. Which Direct Connect configuration is most appropriate for this scenario?

Concept tested:
Question 2 of 10
Objective 1.2 Design Secure Architectures

Which AWS service is best suited for managing secrets and credentials securely in a multi-tier application architecture?

Concept tested:
Question 3 of 10
Objective 4.1 Design Cost-Optimized Architectures

Which AWS storage class is most suitable for infrequently accessed data that requires low-cost, durable storage with secure access controls and compliance features?

Concept tested:
Question 4 of 10
Objective 3.5 Design High-Performing Architectures

What AWS service would you use to secure and manage access control for a data lake that ingests both streaming and batch data, ensuring compliance with GDPR and CCPA regulations?

Concept tested:
Question 5 of 10
Objective 2.1 Design Resilient Architectures

In a microservice architecture designed to process high volumes of user-generated content asynchronously, which AWS service would best support horizontal scaling and loose coupling by enabling event-driven processing through queues?

Concept tested:
Question 6 of 10
Objective 2.2 Design Resilient Architectures

A multinational financial institution requires a multi-region disaster recovery solution with a low Recovery Point Objective (RPO). Which AWS service is best suited for continuously replicating data across geographically dispersed Regions to ensure minimal data loss and facilitate rapid recovery?

Concept tested:
Question 7 of 10
Objective 1.1 Design Secure Architectures

A company needs to provide temporary, secure access to specific AWS resources for an external vendor without sharing long-term credentials or creating a dedicated IAM user. Which approach aligns with best practices for granting controlled access?

Concept tested:
Question 8 of 10
Objective 1.3 Design Secure Architectures

A team is tasked with managing encryption keys for AWS workloads, but not for configuration recording, audit logging, or vulnerability scanning. Which AWS service is the appropriate choice?

Concept tested:
Question 9 of 10
Objective 3.3 Design High-Performing Architectures

In a scenario where a relational application experiences high read traffic and low write frequency, which AWS database solution would be most suitable to minimize latency while keeping built-in high availability?

Concept tested:
Question 10 of 10
Objective 4.2 Design Cost-Optimized Architectures

Which AWS compute service should you choose for a workload that requires high availability and can tolerate interruptions but has an unpredictable usage pattern over the next year?

Concept tested:
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Question 1 A business requires a dedicated, private connection between its on-premises data center and its Amazon Virtual Private Cloud (VPC) to ensure secure and reliable access to its applications. Which Direct Connect configuration is most appropriate for this scenario?

Answer choices

  1. A. Using Direct Connect with a private virtual interface
  2. B. Using NAT gateway and routing through the internet
  3. C. Routing traffic directly between Regions without egress
  4. D. Transferring data via edge locations before reaching EC2

Correct answer

Using Direct Connect with a private virtual interface

Using Direct Connect with a private virtual interface is correct because a Direct Connect private virtual interface is used to reach private VPC resources over a dedicated connection.

Wrong-answer review

  • B. Using NAT gateway and routing through the internet: Using NAT gateway and routing through the internet uses internet egress and managed NAT charges rather than private VPC-to-VPC routing.
  • C. Routing traffic directly between Regions without egress: Routing traffic directly between Regions without egress describes a goal but omits the AWS networking construct required to create the path.
  • D. Transferring data via edge locations before reaching EC2: Transferring data via edge locations before reaching EC2 describes CDN-style delivery, not dedicated private connectivity into a VPC.

Extra learning features

Why candidates miss this

The assumption that a NAT gateway provides a secure, dedicated connection is incorrect. NAT gateways facilitate outbound internet access, but don't establish a private, direct link. Direct Connect’s value lies in bypassing the public internet entirely, ensuring a dedicated, private connection, which is crucial for the business's requirements. Routing through the internet introduces latency and security risks. Likely wrong answer: Using NAT gateway and routing through the internet Review focus: AWS Direct Connect Virtual Interfaces

Interview question

Q: Our company is expanding and needs to connect our existing on-premises data center to our AWS VPC. We want a dedicated, private connection with predictable performance and enhanced security. How would you design this connectivity solution? Strong answer: I'd recommend establishing a Direct Connect connection. Using a private virtual interface ensures the traffic stays within the AWS network and doesn't traverse the public internet, which is crucial for security and predictable performance. We'd need to determine the bandwidth requirements and choose the appropriate Direct Connect port size. It's also important to consider redundancy; a second Direct Connect connection to a different location would provide failover capabilities. Finally, we'd need to configure routing and security groups to control the traffic flow between the on-premises network and the VPC.

  • Understanding of private connectivity requirements
  • Knowledge of Direct Connect and virtual interfaces
  • Security considerations and the importance of avoiding the public internet
  • Redundancy and high availability
  • Routing and security group configuration

Caution: Suggesting a NAT gateway or routing through the internet completely misses the point of a dedicated, private connection. Simply saying 'use Direct Connect' without discussing the virtual interface or security implications is also insufficient.

Why this matters

On the exam, you should know how to use Direct Connect with a private virtual interface to establish dedicated private connections from an on-premises network to VPC resources. On the job, this skill is essential for creating secure and cost-effective architectures.

Objective/domain: Design Cost-Optimized Architectures

Source: Direct Connect virtual interfaces

Question 2 Which AWS service is best suited for managing secrets and credentials securely in a multi-tier application architecture?

Answer choices

  1. A. Amazon Cognito
  2. B. AWS WAF
  3. C. Amazon SNS
  4. D. AWS Secrets Manager

Correct answer

AWS Secrets Manager

Objective/domain: Design Secure Architectures

Source: AWS Docs: Secrets Manager and GuardDuty

Question 3 Which AWS storage class is most suitable for infrequently accessed data that requires low-cost, durable storage with secure access controls and compliance features?

Answer choices

  1. A. Amazon EFS
  2. B. AWS Snowball
  3. C. Amazon S3 Glacier Deep Archive
  4. D. Amazon S3 Standard

Correct answer

Amazon S3 Glacier Deep Archive

Objective/domain: Design Cost-Optimized Architectures

Source: AWS Docs: Storage and Compute Cost Optimization

Question 4 What AWS service would you use to secure and manage access control for a data lake that ingests both streaming and batch data, ensuring compliance with GDPR and CCPA regulations?

Answer choices

  1. A. AWS Glue
  2. B. Amazon Kinesis Data Streams
  3. C. Amazon S3
  4. D. AWS Lake Formation

Correct answer

AWS Lake Formation

Objective/domain: Design High-Performing Architectures

Source: AWS Docs: Data Ingestion and Governance

Question 5 In a microservice architecture designed to process high volumes of user-generated content asynchronously, which AWS service would best support horizontal scaling and loose coupling by enabling event-driven processing through queues?

Answer choices

  1. A. Amazon RDS
  2. B. Amazon SQS
  3. C. AWS Lambda
  4. D. Amazon S3

Correct answer

Amazon SQS

Objective/domain: Design Resilient Architectures

Source: AWS Docs: Amazon SQS

Question 6 A multinational financial institution requires a multi-region disaster recovery solution with a low Recovery Point Objective (RPO). Which AWS service is best suited for continuously replicating data across geographically dispersed Regions to ensure minimal data loss and facilitate rapid recovery?

Answer choices

  1. A. AWS Direct Connect Regional Peering
  2. B. AWS CloudFormation StackSets
  3. C. Amazon Route 53 DNS Failover
  4. D. Amazon S3 Cross-Region Replication

Correct answer

Amazon S3 Cross-Region Replication

Objective/domain: Design Resilient Architectures

Source: AWS Docs: S3 Replication

Question 7 A company needs to provide temporary, secure access to specific AWS resources for an external vendor without sharing long-term credentials or creating a dedicated IAM user. Which approach aligns with best practices for granting controlled access?

Answer choices

  1. A. Provide the vendor with root user credentials to manage resources securely
  2. B. Assign an IAM role to the vendor's identity in their own account using cross-account roles
  3. C. Create an IAM user for the vendor with programmatic access and MFA enabled
  4. D. Grant the vendor direct administrator access to your AWS account via the IAM console

Correct answer

Assign an IAM role to the vendor's identity in their own account using cross-account roles

Objective/domain: Design Secure Architectures

Source: AWS Docs: IAM Roles and Cross-Account Access

Question 8 A team is tasked with managing encryption keys for AWS workloads, but not for configuration recording, audit logging, or vulnerability scanning. Which AWS service is the appropriate choice?

Answer choices

  1. A. AWS Config
  2. B. AWS CloudTrail
  3. C. Amazon Inspector
  4. D. AWS Key Management Service (KMS)

Correct answer

AWS Key Management Service (KMS)

Objective/domain: Design Secure Architectures

Source: AWS Docs: KMS, ACM, and Encryption

Question 9 In a scenario where a relational application experiences high read traffic and low write frequency, which AWS database solution would be most suitable to minimize latency while keeping built-in high availability?

Answer choices

  1. A. Amazon RDS for MySQL with read replicas
  2. B. Amazon DynamoDB with on-demand capacity mode
  3. C. Amazon Aurora with Multi-AZ deployment
  4. D. Amazon ElastiCache for Redis with replication groups

Correct answer

Amazon Aurora with Multi-AZ deployment

Objective/domain: Design High-Performing Architectures

Source: Amazon Aurora overview

Question 10 Which AWS compute service should you choose for a workload that requires high availability and can tolerate interruptions but has an unpredictable usage pattern over the next year?

Answer choices

  1. A. Amazon EC2 On-Demand Instances
  2. B. AWS Lambda
  3. C. Amazon EC2 Spot Instances
  4. D. Reserved Instances

Correct answer

Amazon EC2 Spot Instances

Objective/domain: Design Cost-Optimized Architectures

Source: Spot Instances

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