View Full Amazon AWS Certified Solutions Architect – Associate SAA-C03 Exam Dumps and Practice Test Dumps

 

Question 341

Which AWS service provides a managed message broker compatible with protocols such as AMQP, MQTT, and STOMP?

1. Amazon SQS
2. Amazon EventBridge
3. Amazon MQ
4. Amazon SNS

Correct Answer: 3

Explanation

Amazon MQ is a managed message broker service designed for applications that depend on traditional messaging protocols and broker technologies. It supports engines such as ActiveMQ and RabbitMQ and is useful when migrating existing applications that already rely on standard messaging protocols. SQS is a cloud-native managed queue, EventBridge provides event routing, and SNS provides publish/subscribe messaging. Amazon MQ is therefore the appropriate choice when an organization needs a managed broker while maintaining compatibility with existing messaging applications and protocols.

Question 342

A company needs to analyze application logs stored in Amazon S3 using SQL without managing database infrastructure. Which service should be used?

1. Amazon Athena
2. Amazon Redshift
3. Amazon RDS
4. Amazon DynamoDB

Correct Answer: 1

Explanation

Amazon Athena is a serverless interactive query service that allows users to analyze data directly in Amazon S3 using standard SQL. It does not require provisioning or managing database servers, making it useful for log analysis, ad hoc queries, and large datasets stored in supported formats. Redshift is a managed data warehouse, RDS provides relational databases, and DynamoDB is a NoSQL database. Athena is therefore the appropriate choice when the requirement is to query S3-based log data directly using SQL without managing infrastructure.

Question 343

A company needs a highly available application that can continue serving users when an entire Availability Zone becomes unavailable. Which design is most appropriate?

1. Deploy all resources in one Availability Zone
2. Deploy resources across multiple Availability Zones
3. Use only an Elastic IP address
4. Use a single large EC2 instance

Correct Answer: 2

Explanation

Deploying application resources across multiple Availability Zones provides isolation from failures affecting a single Availability Zone. A load balancer can distribute traffic across healthy instances, while Auto Scaling can maintain application capacity when failures occur. This architecture improves availability without requiring the entire application to run in a single location. An Elastic IP address does not provide application redundancy, and a single EC2 instance remains a single point of failure. Multi-AZ deployment is therefore the appropriate design for maintaining service availability during an Availability Zone failure.

Question 344

Which AWS service provides a centralized dashboard for recommendations related to cost optimization, performance, security, and service limits?

1. AWS Config
2. AWS Trusted Advisor
3. Amazon CloudTrail
4. AWS Systems Manager

Correct Answer: 2

Explanation

AWS Trusted Advisor provides recommendations that can help optimize AWS environments across several categories, including cost optimization, performance, security, fault tolerance, and service limits. These recommendations can identify opportunities such as underutilized resources, security improvements, or potential service quota issues. AWS Config focuses on resource configuration and compliance, CloudTrail records API activity, and Systems Manager provides operational management capabilities. Trusted Advisor is therefore the appropriate service when an organization needs centralized AWS best-practice recommendations.

Question 345

A company wants to send application notifications to users through email, SMS, and other supported endpoints using a publish/subscribe model. Which service should be used?

1. Amazon SNS
2. Amazon SQS
3. Amazon EBS
4. Amazon EFS

Correct Answer: 1

Explanation

Amazon Simple Notification Service (SNS) is a managed publish/subscribe messaging service that can deliver notifications to multiple types of endpoints. Applications can publish messages to an SNS topic, and subscribers can receive those messages through supported protocols and services, including email and SMS for appropriate use cases. SQS is primarily a queueing service for asynchronous processing, while EBS and EFS provide storage. SNS is therefore the appropriate choice when an application needs to distribute notifications through a publish/subscribe architecture.

Question 346

A company needs to ensure that an IAM user cannot perform actions unless explicitly allowed by applicable policies. Which IAM principle is relevant?

1. Default deny
2. Default allow
3. Root access inheritance
4. Automatic administrator access

Correct Answer: 1

Explanation

AWS IAM follows a default-deny model. An action is denied unless an applicable policy grants permission, and an explicit deny overrides an allow. This principle is fundamental to AWS access control and supports least-privilege security designs. Administrators should grant only the permissions required for users, groups, roles, or workloads to perform their tasks. IAM does not automatically grant permissions to users, and root access should not be used for normal operations. Default deny is therefore a key principle of AWS authorization.

Question 347

A company wants to encrypt data stored in Amazon EBS volumes using customer-controlled encryption keys. Which service should provide the keys?

1. Amazon GuardDuty
2. AWS KMS
3. Amazon CloudWatch
4. Amazon Macie

Correct Answer: 2

Explanation

AWS Key Management Service (KMS) provides cryptographic keys that can be used to encrypt supported AWS resources, including Amazon EBS volumes. Organizations can create customer managed KMS keys and control their usage through key policies and IAM permissions. This provides greater control over encryption and key administration compared with relying solely on AWS-owned encryption mechanisms. GuardDuty provides threat detection, CloudWatch provides monitoring, and Macie discovers sensitive data. AWS KMS is therefore the appropriate service for customer-controlled encryption keys.

Question 348

A company wants to automatically detect when an EC2 instance configuration violates a security requirement and evaluate the resource continuously. Which service is most appropriate?

1. Amazon Inspector
2. AWS Config
3. Amazon CloudFront
4. Amazon SQS

Correct Answer: 2

Explanation

AWS Config evaluates AWS resource configurations against defined rules and can determine whether resources comply with organizational requirements. It records configuration changes and provides a historical view that can help identify when a resource became noncompliant. Amazon Inspector focuses on vulnerability assessment rather than general configuration compliance. CloudFront provides content delivery, while SQS provides message queuing. AWS Config is therefore the appropriate service when an organization needs continuous evaluation of resource configurations against security or compliance requirements.

Question 349

A company wants to protect a web application from unusually high request rates originating from individual IP addresses. Which AWS WAF capability should be configured?

1. IP allow list
2. Rate-based rule
3. Geographic routing
4. DNS failover

Correct Answer: 2

Explanation

AWS WAF rate-based rules can monitor the number of requests received from individual IP addresses over a defined time period and take configured actions when request rates exceed a threshold. This capability can help mitigate excessive request patterns and certain application-layer abuse scenarios. IP allow lists are useful when explicitly permitting known addresses, while geographic routing and DNS failover are Route 53 capabilities rather than WAF protections. A rate-based rule is therefore the most appropriate AWS WAF feature for controlling unusually high request rates.

Question 350

A company needs a database service that supports SQL analytics over very large datasets and is optimized for data warehousing. Which service should be selected?

1. Amazon DynamoDB
2. Amazon Redshift
3. Amazon ElastiCache
4. Amazon EFS

Correct Answer: 2

Explanation

Amazon Redshift is a managed cloud data warehouse designed for analytical workloads involving large datasets. It supports SQL queries and is optimized for complex analytics, reporting, and business intelligence workloads. DynamoDB is a NoSQL database designed for low-latency operational applications, ElastiCache provides in-memory caching, and EFS provides shared file storage. Redshift is therefore the appropriate choice when an organization needs a managed service optimized for large-scale SQL analytics and data warehousing.

Question 351

Which AWS service can automatically distribute application traffic across healthy targets in multiple Availability Zones?

1. Amazon EBS
2. Elastic Load Balancing
3. Amazon S3
4. AWS CloudFormation

Correct Answer: 2

Explanation

Elastic Load Balancing distributes incoming application traffic across registered healthy targets, such as EC2 instances, containers, and IP addresses. Load balancers can operate across multiple Availability Zones, improving application availability and helping prevent traffic from being sent to unhealthy resources. EBS provides block storage, S3 provides object storage, and CloudFormation manages infrastructure deployment. Elastic Load Balancing is therefore the appropriate service when traffic needs to be distributed automatically across healthy application resources.

Question 352

A company needs to store session data for a highly scalable application where low-latency access is required and the data does not need to persist in a relational database. Which solution is most appropriate?

1. Amazon ElastiCache
2. Amazon S3 Glacier
3. AWS CloudTrail
4. Amazon EBS snapshots

Correct Answer: 1

Explanation

Amazon ElastiCache provides managed in-memory data stores that can deliver very low-latency access to frequently used application data. It can be used for session information, caching, and other workloads where rapid access is more important than persistent relational database storage. Storing session data in an in-memory cache can also support stateless application servers because sessions do not have to remain on a particular server. S3 Glacier is archival storage, CloudTrail is auditing, and EBS snapshots are backup mechanisms. ElastiCache is therefore the appropriate choice.

Question 353

A company wants to prevent an application from accessing AWS services using permanent access keys stored in configuration files. Which approach is most secure for EC2-based applications?

1. Store the root access key on each instance
2. Store IAM user keys in application code
3. Attach an IAM role to the EC2 instance
4. Create a new IAM user for every application request

Correct Answer: 3

Explanation

Attaching an IAM role to an EC2 instance allows applications running on the instance to obtain temporary credentials through the instance metadata service. This eliminates the need to store long-term access keys in application code or configuration files. Temporary credentials can be automatically rotated and are governed by the permissions assigned to the role. Storing root credentials or IAM user access keys creates unnecessary security risks. Creating users for individual requests is also impractical. An EC2 IAM role is therefore the recommended approach.

Question 354

A company wants to transfer large amounts of data from on-premises storage to AWS over an existing network connection using an automated managed service. Which service should it consider?

1. AWS DataSync
2. Amazon Route 53
3. Amazon SNS
4. AWS WAF

Correct Answer: 1

Explanation

AWS DataSync is a managed data transfer service designed to move data between on-premises storage systems and AWS storage services. It can automate transfers, provide scheduling capabilities, and accelerate data movement over network connections. DataSync is useful for migrations, recurring synchronization, and moving large datasets into services such as Amazon S3, EFS, and FSx. Route 53 provides DNS, SNS provides messaging, and WAF protects web applications. AWS DataSync is therefore appropriate for managed network-based data transfers into AWS.

Question 355

Which AWS service provides a managed NoSQL database that supports key-value and document data models?

1. Amazon Redshift
2. Amazon DynamoDB
3. Amazon Aurora
4. Amazon Neptune

Correct Answer: 2

Explanation

Amazon DynamoDB is a fully managed NoSQL database service that supports key-value and document data models. It is designed for applications requiring low-latency access at scale and eliminates the need to manage database servers. DynamoDB can automatically scale capacity according to the selected capacity mode and supports features such as global tables and streams. Redshift is a data warehouse, Aurora is a relational database, and Neptune is designed for graph workloads. DynamoDB is therefore the appropriate choice for scalable key-value and document database requirements.

Question 356

A company needs to automatically trigger processing whenever a new object is uploaded to an S3 bucket. Which combination is appropriate for a serverless architecture?

1. S3 event notification and AWS Lambda
2. EC2 Instance Store and Amazon EBS
3. Route 53 and AWS Direct Connect
4. Amazon Redshift and Amazon EFS

Correct Answer: 1

Explanation

Amazon S3 can generate event notifications when objects are created or otherwise modified, and these events can invoke AWS Lambda for serverless processing. This architecture allows applications to automatically respond to uploaded objects without continuously running servers. For example, Lambda can process images, validate files, transform data, or initiate downstream workflows. The other combinations do not provide an appropriate event-driven serverless pattern for S3 object processing. S3 event notifications combined with Lambda are therefore a suitable architecture for automated object processing.

Question 357

A company wants to use a managed database that supports graph relationships between entities. Which AWS service should it choose?

1. Amazon Neptune
2. Amazon Redshift
3. Amazon DynamoDB
4. Amazon RDS

Correct Answer: 1

Explanation

Amazon Neptune is a fully managed graph database service designed for workloads that require relationships between data entities to be queried efficiently. It is suitable for use cases such as social networks, recommendation systems, knowledge graphs, fraud detection, and network analysis. DynamoDB is optimized for key-value and document workloads, RDS provides relational databases, and Redshift is designed for analytical data warehousing. Neptune is therefore the appropriate choice when the application’s primary requirement is storing and querying complex relationships between entities.

Question 358

A company wants to ensure that an IAM policy grants only the permissions necessary for an application to perform its required tasks. Which security principle should be followed?

1. Shared credentials
2. Least privilege
3. Root account usage
4. Unlimited permissions

Correct Answer: 2

Explanation

The principle of least privilege requires granting identities only the permissions they need to perform their intended tasks. Applying least privilege reduces the potential impact of compromised credentials or accidental actions because unnecessary permissions are not available. Organizations can implement this principle using IAM policies, roles, permission boundaries, and other access-control mechanisms. Shared credentials, root account usage, and unlimited permissions increase security risks. Least privilege is therefore a fundamental AWS security practice for controlling access to resources and services.

Question 359

A company wants to monitor application performance and create an alarm when CPU utilization remains above a defined threshold. Which AWS service should be used?

1. Amazon CloudWatch
2. AWS CloudTrail
3. AWS Organizations
4. Amazon Macie

Correct Answer: 1

Explanation

Amazon CloudWatch provides monitoring capabilities for AWS resources and applications, including metrics, logs, dashboards, and alarms. Organizations can configure a CloudWatch alarm to monitor an EC2 CPU utilization metric and trigger an action when the metric remains above a specified threshold. CloudTrail records API activity, Organizations manages multiple AWS accounts, and Macie discovers sensitive data in S3. CloudWatch is therefore the appropriate service for monitoring application or infrastructure metrics and generating alarms based on defined conditions.

Question 360

A company wants to reduce costs for an EC2 workload that runs continuously and has predictable resource requirements for several years. Which pricing option is generally most suitable?

1. Spot Instances
2. On-Demand Instances
3. Reserved Instances
4. Dedicated Hosts

Correct Answer: 3

Explanation

Reserved Instances can provide significant discounts for EC2 workloads that have predictable usage over a longer period. They are particularly suitable for applications that are expected to run continuously and consistently require similar capacity. Spot Instances can be much cheaper but may be interrupted, making them less suitable for workloads requiring uninterrupted operation. On-Demand Instances provide flexibility without a commitment but generally cost more for long-term predictable usage. Dedicated Hosts are intended for specific licensing or compliance requirements. Reserved Instances are therefore generally appropriate for predictable long-running workloads.