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

 

Question 101

Which AWS service provides a managed relational database compatible with MySQL and PostgreSQL while offering improved performance and availability compared with standard RDS database engines?

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

Correct Answer: 2

Explanation

Amazon Aurora is a fully managed relational database engine compatible with MySQL and PostgreSQL. It is designed for high performance, availability, and durability while reducing many administrative tasks associated with traditional databases. Aurora automatically replicates storage across multiple Availability Zones and can use Aurora Replicas to scale read workloads. DynamoDB is a NoSQL database, Redshift is designed primarily for analytics, and Neptune is a graph database. Aurora is therefore an appropriate choice when an application needs a managed, highly available relational database compatible with MySQL or PostgreSQL.

Question 102

A company needs to allow an application to upload a private object to Amazon S3 for a limited period without giving the application permanent AWS credentials. Which solution should be used?

1. S3 bucket ACL
2. IAM user access keys
3. S3 presigned URL
4. S3 public access

Correct Answer: 3

Explanation

An S3 presigned URL provides temporary access to a specific S3 object or operation without requiring the recipient to receive permanent AWS credentials. The URL is generated by an authorized identity and contains temporary authorization information that expires after a defined period. This makes presigned URLs useful for allowing users or applications to upload or download private objects securely for limited periods. Bucket ACLs and IAM access keys do not provide the same temporary URL-based access model, while public access would unnecessarily expose the object.

Question 103

Which AWS service provides a centralized dashboard of recommendations for improving cost, performance, security, and fault tolerance?

1. AWS Trusted Advisor
2. AWS CloudTrail
3. Amazon Inspector
4. AWS Config

Correct Answer: 1

Explanation

AWS Trusted Advisor provides recommendations that can help improve several aspects of an AWS environment, including cost optimization, performance, security, fault tolerance, and service limits. It analyzes the AWS environment and identifies areas where customers may benefit from changes or improvements. CloudTrail records API activity, Inspector identifies workload vulnerabilities, and Config evaluates resource configurations against compliance rules. Trusted Advisor is therefore the appropriate service when an organization wants centralized recommendations covering multiple operational and architectural areas.

Question 104

Which AWS networking component provides internet connectivity to a VPC and enables communication between resources with appropriate public addressing and the internet?

1. NAT Gateway
2. Internet Gateway
3. VPC Endpoint
4. Transit Gateway

Correct Answer: 2

Explanation

An Internet Gateway is a horizontally scaled, redundant VPC component that allows communication between resources in a VPC and the public internet when appropriate routing and public addressing are configured. A public subnet typically has a route directing internet-bound traffic to the Internet Gateway. A NAT Gateway provides outbound internet access for private resources, while VPC Endpoints provide private access to supported services and Transit Gateway connects networks. An Internet Gateway is therefore the correct component for direct VPC-to-internet connectivity.

Question 105

Which S3 feature automatically moves objects between storage classes based on access patterns to help reduce storage costs?

1. S3 Versioning
2. S3 Replication
3. S3 Intelligent-Tiering
4. S3 Object Lock

Correct Answer: 3

Explanation

S3 Intelligent-Tiering automatically moves objects between access tiers based on changing access patterns, helping optimize storage costs without requiring administrators to predict future access behavior. It is useful when object access frequency is uncertain or changes over time. S3 Versioning maintains multiple object versions, Replication copies objects to another location, and Object Lock helps prevent objects from being deleted or overwritten for a defined retention period. Intelligent-Tiering is therefore the appropriate feature when automatic cost optimization based on access patterns is required.

Question 106

A company needs to send the same application event to multiple independent processing systems. Which architecture is most appropriate?

1. Amazon SQS only
2. Amazon SNS with multiple subscribers
3. Amazon EBS
4. Amazon RDS Multi-AZ

Correct Answer: 2

Explanation

Amazon SNS supports a publish/subscribe model in which a publisher sends a message to a topic and multiple subscribers can receive the message. This pattern is useful for application fanout, where one event needs to trigger processing by several independent systems. SNS can deliver messages to supported endpoints, including SQS queues, allowing each consumer to process the event independently. SQS alone is primarily designed for queue-based consumption, while EBS and RDS Multi-AZ serve storage and database availability purposes. SNS with multiple subscribers is therefore the appropriate architecture.

Question 107

Which AWS service can provide a private DNS name for accessing an AWS service through an interface VPC endpoint?

1. AWS PrivateLink
2. Amazon Route 53 only
3. Internet Gateway
4. NAT Gateway

Correct Answer: 1

Explanation

AWS PrivateLink enables private connectivity to supported AWS services and endpoint services through interface VPC endpoints. These endpoints create elastic network interfaces inside the VPC and can support private DNS names so applications can access services without using public internet addresses. This simplifies application configuration while keeping traffic within the AWS network. Internet Gateways and NAT Gateways provide internet connectivity, while Route 53 is a DNS service rather than the underlying private connectivity technology. PrivateLink is therefore the appropriate solution for private service access through interface endpoints.

Question 108

Which AWS service is best suited for storing application configuration parameters and retrieving them securely without embedding values directly in source code?

1. Amazon S3 Glacier
2. AWS Systems Manager Parameter Store
3. Amazon CloudFront
4. AWS Shield

Correct Answer: 2

Explanation

AWS Systems Manager Parameter Store provides secure, centralized storage for configuration values and parameters used by applications and infrastructure. Applications can retrieve parameters at runtime instead of embedding configuration values directly in source code. Parameter Store supports different parameter types and can integrate with AWS KMS for encrypted values. S3 Glacier is designed for archival storage, CloudFront provides content delivery, and Shield provides DDoS protection. Parameter Store is therefore a suitable solution for centrally managing application configuration and sensitive parameter values.

Question 109

Which EC2 purchasing option provides flexible discounts based on a commitment to a consistent amount of compute usage rather than a specific instance?

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

Correct Answer: 3

Explanation

AWS Savings Plans provide discounted compute pricing in exchange for a commitment to a consistent amount of compute usage over a selected term. Unlike traditional Reserved Instances, certain Savings Plans provide flexibility across instance families, sizes, operating systems, or Regions depending on the plan type. Spot Instances are based on spare capacity and can be interrupted, Dedicated Hosts provide dedicated physical servers, and On-Demand pricing has no long-term commitment. Savings Plans are therefore appropriate for organizations seeking predictable compute discounts while retaining greater flexibility.

Question 110

Which AWS service allows a company to securely store objects while preventing them from being deleted or overwritten during a defined retention period?

1. Amazon S3 Object Lock
2. Amazon EBS snapshots
3. Amazon EFS
4. Amazon S3 Transfer Acceleration

Correct Answer: 1

Explanation

Amazon S3 Object Lock helps protect objects from deletion or overwrite for a defined retention period. It supports write-once-read-many style protection and can be useful for compliance, regulatory records, and other data that must remain immutable. Object Lock can work with retention settings and legal holds depending on the required protection model. EBS snapshots provide block-storage backups, EFS provides file storage, and S3 Transfer Acceleration improves transfer speeds. S3 Object Lock is therefore the appropriate feature for protecting objects from modification or deletion.

Question 111

Which AWS service provides a managed data warehouse designed for complex analytical queries over large datasets?

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

Correct Answer: 2

Explanation

Amazon Redshift is a managed cloud data warehouse designed for large-scale analytical workloads. It supports complex SQL queries across substantial datasets and can integrate with data stored in various AWS services. Redshift is optimized for analytics rather than transactional application workloads. DynamoDB is a NoSQL database, SQS provides asynchronous messaging, and ElastiCache provides in-memory caching. Redshift is therefore the appropriate choice when an organization needs a managed data warehouse for business intelligence, reporting, and complex analytical queries.

Question 112

A company needs to run a workload that can tolerate interruptions and has no fixed completion deadline. Which EC2 purchasing option can provide the lowest compute cost?

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

Correct Answer: 2

Explanation

Spot Instances can provide substantial discounts compared with On-Demand Instances by using available spare EC2 capacity. Because AWS can interrupt Spot Instances when capacity is needed, they are best suited for workloads that can tolerate interruptions and resume or restart processing. Examples include batch jobs, flexible data processing, and distributed workloads. Reserved Instances require a longer-term commitment, Dedicated Hosts provide dedicated physical capacity, and On-Demand Instances offer flexible pricing without a commitment but usually cost more. Spot Instances are therefore appropriate for highly cost-sensitive, interruptible workloads.

Question 113

Which AWS service can continuously monitor resource metrics and trigger an alarm when a threshold is breached?

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

Correct Answer: 1

Explanation

Amazon CloudWatch collects and monitors metrics from AWS resources and applications. Administrators can create alarms that evaluate metrics against defined thresholds and trigger actions when conditions are met. For example, a CloudWatch alarm can detect high EC2 CPU utilization and initiate an Auto Scaling action or send a notification. CloudTrail records API activity, Organizations manages AWS accounts, and Macie focuses on sensitive data discovery. CloudWatch is therefore the appropriate service for monitoring metrics and automatically responding when defined thresholds are exceeded.

Question 114

Which AWS service provides a managed private connection between an on-premises network and AWS over an encrypted public internet connection?

1. AWS Direct Connect
2. AWS Site-to-Site VPN
3. Amazon CloudFront
4. AWS Global Accelerator

Correct Answer: 2

Explanation

AWS Site-to-Site VPN creates encrypted tunnels between an on-premises network and a VPC using the public internet. It provides secure connectivity without requiring a dedicated physical connection. Direct Connect provides a dedicated private network connection and does not inherently encrypt traffic at the application level. CloudFront accelerates content delivery, while Global Accelerator optimizes application traffic over the AWS global network. Site-to-Site VPN is therefore the appropriate choice when an organization needs encrypted connectivity between an on-premises environment and AWS using the internet.

Question 115

Which AWS service is designed to provide highly durable object storage for static files such as images, documents, and backups?

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

Correct Answer: 1

Explanation

Amazon S3 provides highly durable object storage for a wide variety of data, including images, documents, backups, logs, and application assets. It is designed for scalable storage without requiring customers to manage storage servers. S3 also supports features such as versioning, lifecycle management, encryption, replication, and access policies. EBS provides block storage for compute workloads, EFS provides shared file storage, and RDS provides managed relational databases. S3 is therefore the appropriate choice for storing static files and other objects with high durability requirements.

Question 116

A company wants to expose a REST API and invoke AWS Lambda functions without managing API servers. Which combination is most appropriate?

1. Amazon API Gateway and AWS Lambda
2. Amazon RDS and Amazon EC2
3. Amazon S3 and Amazon EFS
4. Amazon Redshift and Amazon Athena

Correct Answer: 1

Explanation

Amazon API Gateway can provide managed API endpoints and route incoming requests to AWS Lambda functions. Lambda executes the application logic without requiring the company to provision or manage servers. Together, API Gateway and Lambda form a common serverless architecture for REST APIs and other application interfaces. RDS and EC2 are designed for relational databases and virtual servers, while S3 and EFS provide storage services. Redshift and Athena focus on analytics. API Gateway with Lambda is therefore the appropriate serverless API architecture.

Question 117

Which AWS feature helps protect a VPC subnet by controlling inbound and outbound traffic at the subnet level?

1. Security group
2. Network ACL
3. IAM policy
4. S3 bucket policy

Correct Answer: 2

Explanation

A Network Access Control List (Network ACL) operates at the subnet level and can control inbound and outbound traffic using allow and deny rules. Network ACLs are stateless, so administrators must configure rules for both directions when required. Security groups operate at the resource level and are stateful. IAM policies control permissions to AWS resources, while S3 bucket policies control access to S3 resources. A Network ACL is therefore the appropriate choice when subnet-level network traffic filtering is required.

Question 118

Which AWS service provides a managed queue feature that can temporarily retain messages when consumers are unavailable?

1. Amazon SQS
2. Amazon SNS
3. Amazon EventBridge
4. AWS CloudTrail

Correct Answer: 1

Explanation

Amazon SQS provides durable managed queues that can temporarily retain messages until consumers are ready to process them. This helps decouple application components and allows producers to continue sending messages even when consumers are temporarily unavailable or operating more slowly. SQS also supports features such as visibility timeouts and dead-letter queues for reliable message processing. SNS is primarily a notification and pub/sub service, EventBridge routes events, and CloudTrail records API activity. SQS is therefore the appropriate service for temporarily buffering messages between application components.

Question 119

Which AWS disaster recovery concept defines the maximum acceptable amount of data loss measured in time?

1. RTO
2. RPO
3. MTTR
4. SLA

Correct Answer: 2

Explanation

Recovery Point Objective (RPO) defines the maximum amount of data loss an organization can tolerate, usually expressed as a period of time. For example, an RPO of one hour means the organization aims to recover data to a point no more than one hour before a disruption. Recovery Time Objective (RTO) instead defines how quickly the system should be restored after a failure. MTTR measures repair or recovery time, while an SLA defines service-level commitments. RPO is therefore the correct term for the maximum acceptable amount of data loss.

Question 120

Which AWS Well-Architected Framework pillar focuses on minimizing unnecessary spending while delivering business value?

1. Reliability
2. Security
3. Cost Optimization
4. Operational Excellence

Correct Answer: 3

Explanation

The Cost Optimization pillar focuses on delivering business value while avoiding unnecessary AWS spending. Practices include selecting appropriate resource types, using pricing models such as Savings Plans when suitable, removing unused resources, monitoring expenditure, and selecting storage classes based on access requirements. Reliability focuses on resilient workload operation, Security protects systems and data, and Operational Excellence focuses on operating and improving workloads effectively. Cost Optimization is therefore the appropriate Well-Architected pillar when the primary objective is controlling cloud expenditure while maintaining required business outcomes.