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

 

Question 241

Which AWS service provides a managed message queue that decouples application components and allows messages to be processed asynchronously?

1. Amazon SNS
2. Amazon SQS
3. Amazon EventBridge
4. AWS Step Functions

Correct Answer: 2

Explanation

Amazon Simple Queue Service (SQS) is a managed message queuing service that allows application components to communicate asynchronously. A producer can place messages into a queue while consumers process them independently. This decoupling improves application resilience because temporary failures or slow processing on one component do not necessarily stop the entire application. SQS also supports features such as visibility timeouts, message retention, long polling, and dead-letter queues. SNS is primarily a notification and pub/sub service, while EventBridge routes events between systems.

Question 242

A company wants to use a database that supports automatic multi-Region replication and allows applications in different Regions to access local replicas. Which service should be used?

1. Amazon DynamoDB Global Tables
2. Amazon RDS Multi-AZ
3. Amazon ElastiCache
4. Amazon Redshift

Correct Answer: 1

Explanation

Amazon DynamoDB Global Tables provide a multi-Region, multi-active database architecture. They automatically replicate DynamoDB data across selected AWS Regions, allowing applications to read and write data locally in supported Regions. This can improve application availability and reduce latency for globally distributed users. RDS Multi-AZ primarily provides high availability within a Region, while ElastiCache is an in-memory caching service and Redshift is an analytical data warehouse. DynamoDB Global Tables are therefore appropriate when applications require globally distributed database access and multi-Region replication.

Question 243

Which AWS service can provide a centralized location for storing and rotating database credentials used by applications?

1. AWS Secrets Manager
2. Amazon CloudWatch
3. AWS CloudTrail
4. Amazon Inspector

Correct Answer: 1

Explanation

AWS Secrets Manager provides secure centralized storage for sensitive information such as database usernames, passwords, API keys, and other application secrets. It can also support automatic rotation for supported credentials, reducing the need for administrators to manually change passwords. Applications can retrieve secrets programmatically at runtime instead of storing credentials directly in source code. CloudWatch provides monitoring, CloudTrail records API activity, and Inspector identifies vulnerabilities. Secrets Manager is therefore the best choice when secure storage and credential rotation are required.

Question 244

A company needs to analyze large volumes of structured data for business intelligence and reporting. Which AWS service is most appropriate?

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

Correct Answer: 2

Explanation

Amazon Redshift is a managed cloud data warehouse designed for analytical workloads involving large volumes of structured data. It supports complex SQL queries and is commonly used for business intelligence, reporting, dashboards, and data analytics. Redshift uses columnar storage and parallel processing to efficiently analyze large datasets. DynamoDB is optimized for NoSQL transactional applications, EFS provides shared file storage, and SQS provides asynchronous messaging. Redshift is therefore the appropriate service when the primary requirement is large-scale analytical processing and reporting.

Question 245

Which AWS service can provide application-level protection against SQL injection and cross-site scripting attacks?

1. AWS WAF
2. AWS Shield
3. Amazon GuardDuty
4. AWS Config

Correct Answer: 1

Explanation

AWS WAF is a web application firewall that can inspect incoming HTTP and HTTPS requests and apply rules to allow or block traffic. It can help protect web applications against common application-layer attacks, including SQL injection and cross-site scripting. Organizations can create managed or custom rules based on request characteristics, IP addresses, headers, and other conditions. AWS Shield primarily protects against DDoS attacks, GuardDuty detects suspicious activity, and Config evaluates resource configurations. AWS WAF is therefore the most appropriate service for application-layer request filtering.

Question 246

Which AWS storage service provides persistent block storage volumes that can be attached to EC2 instances?

1. Amazon EFS
2. Amazon S3
3. Amazon EBS
4. Amazon FSx

Correct Answer: 3

Explanation

Amazon Elastic Block Store (EBS) provides persistent block-level storage volumes for EC2 instances. EBS volumes can be used for operating systems, application files, databases, and other workloads that require block storage. Data on an EBS volume persists independently from the lifecycle of the attached EC2 instance in many common scenarios. EFS provides shared file storage, S3 provides object storage, and FSx provides managed specialized file systems. Amazon EBS is therefore the appropriate service when persistent block storage is required for an EC2 workload.

Question 247

A company wants to automatically distribute application traffic across multiple healthy EC2 instances in different Availability Zones. Which AWS service should be used?

1. Amazon CloudFront
2. Elastic Load Balancing
3. Amazon S3
4. AWS Direct Connect

Correct Answer: 2

Explanation

Elastic Load Balancing distributes incoming application traffic across registered targets such as EC2 instances. An Application Load Balancer or Network Load Balancer can operate across multiple Availability Zones, helping improve application availability and fault tolerance. Health checks allow the load balancer to avoid sending traffic to unhealthy targets. CloudFront provides content delivery, S3 provides object storage, and Direct Connect provides dedicated network connectivity. Elastic Load Balancing is therefore the appropriate service for distributing application traffic across healthy compute resources.

Question 248

A company needs to allow a private subnet to access the internet for outbound software updates while preventing unsolicited inbound internet connections. Which architecture is appropriate?

1. Private subnet through a NAT Gateway in a public subnet
2. Private subnet directly attached to an Internet Gateway
3. Private subnet connected directly to a public IP
4. Private subnet through an S3 Gateway Endpoint for all internet traffic

Correct Answer: 1

Explanation

A NAT Gateway placed in a public subnet allows resources in private subnets to initiate outbound internet connections while preventing unsolicited inbound connections initiated from the internet. The private subnet’s route table sends internet-bound traffic to the NAT Gateway, and the NAT Gateway uses an Internet Gateway for external connectivity. Directly attaching a private subnet to an Internet Gateway does not provide the intended architecture. An S3 Gateway Endpoint is limited to supported AWS services. A NAT Gateway is therefore the appropriate solution for controlled outbound internet access.

Question 249

Which AWS service provides a managed container orchestration platform that can run Docker containers without requiring Kubernetes?

1. Amazon ECS
2. Amazon EKS
3. Amazon RDS
4. AWS Lambda

Correct Answer: 1

Explanation

Amazon Elastic Container Service (ECS) is a managed container orchestration service designed to run and manage containerized applications. ECS can use either EC2 instances or AWS Fargate as its compute infrastructure. Unlike EKS, ECS does not require Kubernetes, making it a suitable choice for organizations that want AWS-native container orchestration without adopting the Kubernetes control plane. RDS is a managed relational database service, while Lambda provides serverless function execution. ECS is therefore the appropriate service for managing Docker containers without Kubernetes.

Question 250

Which AWS service can provide a global content delivery network with edge locations that cache content close to end users?

1. AWS Transit Gateway
2. Amazon CloudFront
3. AWS PrivateLink
4. Amazon SQS

Correct Answer: 2

Explanation

Amazon CloudFront is AWS’s global content delivery network. It uses edge locations to cache and deliver content closer to users, reducing latency and improving application performance. CloudFront can distribute static and dynamic content and can use origins such as S3 buckets, load balancers, and custom HTTP servers. Transit Gateway connects networks, PrivateLink provides private service connectivity, and SQS provides message queuing. CloudFront is therefore the correct choice when an application requires global content distribution and edge caching.

Question 251

Which AWS service can automatically evaluate AWS resource configurations against organizational compliance requirements?

1. AWS Config
2. Amazon CloudWatch
3. AWS CloudTrail
4. Amazon Inspector

Correct Answer: 1

Explanation

AWS Config continuously records supported resource configurations and can evaluate them against predefined or custom compliance rules. Organizations can use Config to determine whether resources meet security and operational requirements and identify configuration changes that may violate policies. CloudWatch focuses on monitoring metrics and logs, CloudTrail records API activity, and Inspector assesses supported workloads for vulnerabilities. AWS Config is therefore the appropriate service when the primary requirement is continuous configuration assessment and compliance monitoring.

Question 252

Which AWS service provides temporary credentials to applications running on EC2 instances through an attached IAM role?

1. Amazon Cognito
2. IAM role for EC2
3. AWS Organizations
4. AWS KMS

Correct Answer: 2

Explanation

An IAM role attached to an EC2 instance allows applications running on that instance to obtain temporary AWS credentials through the instance metadata service. This avoids storing long-term access keys on the server and is considered a security best practice. Permissions assigned to the role determine which AWS resources the instance can access. Cognito manages application identities, Organizations provides multi-account governance, and KMS manages encryption keys. An IAM role for EC2 is therefore the appropriate solution for granting temporary AWS permissions without embedding permanent credentials.

Question 253

A company wants to automatically run a workflow containing several dependent tasks and retry failed steps. Which AWS service should be used?

1. Amazon SNS
2. AWS Step Functions
3. Amazon S3
4. Amazon Route 53

Correct Answer: 2

Explanation

AWS Step Functions allows organizations to create workflows that coordinate multiple tasks and AWS services. Workflows can define sequential or parallel execution, conditional branches, retries, error handling, and waiting periods. This makes Step Functions useful for complex business processes and serverless applications where several dependent operations must be executed reliably. SNS is designed for notifications, S3 provides object storage, and Route 53 provides DNS services. Step Functions is therefore the appropriate service when an application requires reliable orchestration of multiple dependent tasks.

Question 254

Which S3 storage class is designed for data that is accessed less frequently but still requires millisecond access when needed?

1. S3 Standard-IA
2. S3 Glacier Deep Archive
3. S3 Intelligent-Tiering Archive only
4. S3 Express One Zone

Correct Answer: 1

Explanation

S3 Standard-Infrequent Access (Standard-IA) is designed for data that is accessed less frequently but still requires rapid access when requested. It provides lower storage costs than S3 Standard while retaining millisecond access characteristics. It is useful for backups, disaster recovery data, and other objects that are not accessed frequently but must remain readily available. Glacier Deep Archive is intended for long-term archival with slower retrieval, while the other options serve different workload patterns. Standard-IA is therefore appropriate for infrequently accessed data requiring fast retrieval.

Question 255

Which AWS service can provide DNS-based routing that sends traffic to a primary endpoint and automatically redirects it to a secondary endpoint when the primary becomes unhealthy?

1. Amazon CloudFront
2. Amazon Route 53
3. AWS Global Accelerator
4. Amazon API Gateway

Correct Answer: 2

Explanation

Amazon Route 53 supports failover routing, which can direct traffic to a primary endpoint during normal operation and automatically route requests to a secondary endpoint when health checks determine that the primary is unavailable. This is useful for active-passive disaster recovery architectures and highly available applications. CloudFront provides content delivery, Global Accelerator provides network-level traffic routing using static IP addresses, and API Gateway manages APIs. Route 53 is therefore the appropriate service for DNS-based primary and secondary endpoint failover.

Question 256

A company needs to identify sensitive information stored in Amazon S3, such as personally identifiable information. Which AWS service should be used?

1. Amazon Inspector
2. Amazon Macie
3. Amazon GuardDuty
4. AWS Shield

Correct Answer: 2

Explanation

Amazon Macie is a data security and privacy service that uses machine learning and pattern matching to discover and classify sensitive data in Amazon S3. It can help identify information such as personally identifiable information and other sensitive content so organizations can better understand their data security posture. Inspector focuses on vulnerabilities, GuardDuty detects threats and suspicious activity, and Shield protects against DDoS attacks. Macie is therefore the appropriate service when the requirement is to discover sensitive information stored in S3.

Question 257

Which AWS service provides a managed file system designed for workloads that require the NFS protocol and shared access from multiple Linux instances?

1. Amazon EFS
2. Amazon EBS
3. Amazon S3
4. Amazon DynamoDB

Correct Answer: 1

Explanation

Amazon Elastic File System (EFS) provides a managed, elastic file system that supports the NFS protocol and can be mounted by multiple Linux-based EC2 instances. It is useful when several application servers need concurrent access to a shared file system. EFS automatically scales storage capacity based on the amount of data stored, reducing the need to manage file-system capacity manually. EBS provides block storage, S3 provides object storage, and DynamoDB is a NoSQL database. EFS is therefore the appropriate choice for shared NFS-based Linux file storage.

Question 258

Which AWS service can provide static IP addresses for an application while routing traffic through the AWS global network to healthy endpoints?

1. Amazon Route 53
2. AWS Global Accelerator
3. Amazon CloudFront
4. Amazon API Gateway

Correct Answer: 2

Explanation

AWS Global Accelerator provides static anycast IP addresses that remain associated with the accelerator while traffic is routed through the AWS global network toward healthy application endpoints. It can improve availability and network performance for applications deployed across multiple AWS Regions or Availability Zones. Route 53 provides DNS-based routing, CloudFront focuses on content delivery and caching, and API Gateway provides managed APIs. Global Accelerator is therefore the appropriate service when an application requires static global IP addresses and optimized network-level routing.

Question 259

Which AWS purchasing option provides discounted pricing for predictable EC2 usage in exchange for a commitment over a defined period?

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

Correct Answer: 3

Explanation

Amazon EC2 Reserved Instances can provide discounted pricing compared with On-Demand pricing when organizations commit to a specified usage arrangement for a defined term. They are well suited to workloads with predictable and steady resource requirements. Spot Instances offer lower prices but can be interrupted, while On-Demand Instances provide flexible usage without a long-term commitment. Dedicated Hosts provide dedicated physical server capacity and are intended for specific licensing or compliance requirements. Reserved Instances are therefore appropriate for predictable workloads where cost savings are important.

Question 260

Which AWS Well-Architected Framework pillar focuses on protecting information, systems, and assets while delivering business value through risk assessments and security controls?

1. Reliability
2. Cost Optimization
3. Security
4. Performance Efficiency

Correct Answer: 3

Explanation

The Security pillar of the AWS Well-Architected Framework focuses on protecting information, systems, and assets while using AWS technologies to improve security. Key areas include identity and access management, detection, infrastructure protection, data protection, and incident response. Reliability focuses on recovering from failures and meeting workload requirements, Cost Optimization focuses on avoiding unnecessary expenses, and Performance Efficiency focuses on efficient use of computing resources. Security is therefore the appropriate pillar when the primary objective is protecting workloads and data from security risks.