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

 

Question 121

Which AWS service provides a managed service for deploying and scaling containerized applications without requiring customers to manage the underlying container orchestration control plane?

1. Amazon S3
2. Amazon RDS
3. Amazon ECS
4. Amazon Route 53

Correct Answer: 3

Explanation

Amazon Elastic Container Service (ECS) is a managed container orchestration service that allows organizations to deploy, manage, and scale containerized applications. ECS can run containers using either EC2 instances or AWS Fargate, depending on the infrastructure management requirements. It integrates with other AWS services such as Elastic Load Balancing, CloudWatch, and IAM. S3 provides object storage, RDS provides relational databases, and Route 53 provides DNS services. ECS is therefore the appropriate choice for managing containerized applications using AWS-native orchestration capabilities.

Question 122

A company needs to protect an EC2 instance from unauthorized network connections while allowing specific inbound and outbound traffic. Which AWS feature should be configured?

1. Security group
2. Route table
3. IAM role
4. VPC Flow Logs

Correct Answer: 1

Explanation

A security group acts as a virtual firewall for supported resources such as EC2 instances. It controls inbound and outbound network traffic based on configured rules, allowing administrators to specify permitted protocols, ports, and source or destination addresses. Security groups are stateful, meaning response traffic for an allowed connection is automatically permitted. Route tables determine traffic paths, IAM roles provide permissions to AWS services, and VPC Flow Logs record network traffic information. A security group is therefore the appropriate control for restricting network access to an EC2 instance.

Question 123

Which AWS service allows a company to run SQL queries directly against data stored in Amazon S3 without managing database servers?

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

Correct Answer: 4

Explanation

Amazon Athena is a serverless query service that allows users to analyze data stored in Amazon S3 using standard SQL. Because Athena queries data directly from S3, organizations do not need to provision or maintain database servers for these queries. It is useful for ad hoc analysis, log processing, and data lake workloads. RDS provides managed relational databases, Redshift is a data warehouse, and DynamoDB is a NoSQL database. Athena is therefore the appropriate solution for querying S3 data with SQL without managing infrastructure.

Question 124

Which AWS service can automatically replicate objects from an S3 bucket in one AWS Region to a bucket in another Region?

1. S3 Versioning
2. S3 Cross-Region Replication
3. S3 Lifecycle
4. S3 Object Lock

Correct Answer: 2

Explanation

Amazon S3 Cross-Region Replication (CRR) automatically replicates eligible objects from a source S3 bucket to a destination bucket in a different AWS Region. It can be used for disaster recovery, compliance requirements, geographic data placement, or reducing latency for globally distributed applications. Replication requires appropriate configuration, including versioning on the relevant buckets. S3 Versioning maintains object versions, Lifecycle manages storage transitions and expiration, and Object Lock protects objects from deletion or overwrite. Cross-Region Replication is therefore the correct choice for automatic cross-Region object replication.

Question 125

A company wants to automatically add EC2 instances when CPU utilization increases and remove instances when demand decreases. Which solution should be used?

1. Amazon CloudWatch with EC2 Auto Scaling
2. AWS CloudTrail with IAM
3. Amazon S3 with Lifecycle policies
4. AWS Config with AWS Organizations

Correct Answer: 1

Explanation

Amazon CloudWatch can monitor EC2 metrics such as CPU utilization and trigger alarms when configured thresholds are reached. EC2 Auto Scaling can use these conditions to increase or decrease the number of instances in an Auto Scaling group. This combination allows an application to respond automatically to changing workload demand while maintaining configured minimum and maximum capacity. CloudTrail records API activity, S3 Lifecycle manages object storage, Config evaluates configurations, and Organizations manages accounts. CloudWatch with EC2 Auto Scaling is therefore the appropriate solution for demand-based compute scaling.

Question 126

Which AWS service is best suited for storing files that must be accessed simultaneously by multiple Windows-based EC2 instances using the SMB protocol?

1. Amazon EBS
2. Amazon S3
3. Amazon FSx for Windows File Server
4. Amazon DynamoDB

Correct Answer: 3

Explanation

Amazon FSx for Windows File Server provides fully managed Windows file storage that supports the Server Message Block (SMB) protocol. It is designed for Windows-based applications and can provide shared file storage to multiple compute resources. This makes it suitable for workloads requiring Windows file shares, shared directories, and compatibility with Windows-based applications. EBS provides block storage, S3 provides object storage, and DynamoDB provides NoSQL database capabilities. FSx for Windows File Server is therefore the appropriate solution for shared SMB-based storage.

Question 127

Which AWS service can protect a web application against distributed denial-of-service attacks at the AWS network and application layers?

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

Correct Answer: 2

Explanation

AWS Shield provides managed protection against distributed denial-of-service (DDoS) attacks. AWS Shield Standard provides automatic protection against common network and transport layer attacks, while AWS Shield Advanced offers additional capabilities for more sophisticated protection and visibility. Inspector is used for vulnerability assessment, Config evaluates resource configurations, and Macie helps discover sensitive data in S3. AWS Shield is therefore the appropriate security service when the primary requirement is protection against DDoS attacks targeting AWS applications and resources.

Question 128

A company wants to create a backup copy of an EBS volume that can be stored independently and used to create new volumes later. Which feature should be used?

1. EBS snapshot
2. EC2 user data
3. Instance Store
4. Elastic IP address

Correct Answer: 1

Explanation

Amazon EBS snapshots provide point-in-time backups of EBS volumes and can be used to create new EBS volumes later. Snapshots are stored durably in AWS-managed storage and support backup, recovery, migration, and disaster recovery use cases. They are incremental after the initial snapshot, which can help optimize storage consumption. EC2 user data is used for instance initialization, Instance Store provides temporary local storage, and Elastic IP addresses provide static public IPv4 addresses. EBS snapshots are therefore the appropriate solution for backing up EBS volumes.

Question 129

Which AWS service can provide a dedicated private connection from an on-premises data center to AWS without using the public internet?

1. AWS Site-to-Site VPN
2. AWS Direct Connect
3. Amazon CloudFront
4. Amazon Route 53

Correct Answer: 2

Explanation

AWS Direct Connect provides a dedicated network connection between an on-premises environment and AWS. It can provide more consistent network performance and private connectivity compared with internet-based connections. Direct Connect is commonly used for hybrid architectures, high-volume data transfer, and workloads requiring predictable network connectivity. Site-to-Site VPN uses encrypted tunnels over the public internet, while CloudFront provides content delivery and Route 53 provides DNS services. Direct Connect is therefore the appropriate choice when a dedicated private connection to AWS is required.

Question 130

Which S3 storage class is designed for data that is accessed less frequently but requires rapid retrieval when needed?

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

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 offers lower storage costs than S3 Standard while charging retrieval fees when objects are accessed. It is suitable for backups, long-term data, and other data that is not accessed frequently but must remain readily available. Glacier Deep Archive is intended for very long-term archival with slower retrieval, while One Zone-IA stores data in a single Availability Zone. Standard-IA is therefore appropriate for infrequently accessed data requiring fast retrieval.

Question 131

Which AWS service provides centralized audit logs of API calls that can be delivered to Amazon S3 for long-term retention?

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

Correct Answer: 3

Explanation

AWS CloudTrail records AWS API activity and can deliver log files to Amazon S3 for long-term storage and analysis. These logs can provide valuable information about which identity performed an action, what operation was performed, when it occurred, and which resource was affected. Organizations commonly use CloudTrail for auditing, security investigations, governance, and compliance. Config focuses on resource configurations, CloudWatch monitors metrics and logs, and Trusted Advisor provides recommendations. CloudTrail is therefore the appropriate service for centralized API activity auditing and long-term log retention.

Question 132

A workload requires a database that can automatically scale capacity based on unpredictable traffic without requiring administrators to manage database servers. Which option is most appropriate?

1. Amazon DynamoDB on-demand mode
2. Amazon RDS Single-AZ
3. Amazon EC2 with a database installed
4. Amazon EBS

Correct Answer: 1

Explanation

DynamoDB on-demand capacity mode automatically handles database capacity based on application traffic, making it suitable for workloads with unpredictable or rapidly changing demand. Customers do not need to provision database servers or manually manage capacity. DynamoDB provides managed NoSQL storage with low-latency performance and automatic scaling capabilities. RDS provides managed relational databases but uses different capacity management approaches, while EC2 with a self-managed database requires significantly more administration. EBS is block storage rather than a database. DynamoDB on-demand is therefore the appropriate choice.

Question 133

Which AWS service provides a managed relational database option for applications that require SQL transactions and traditional relational database features?

1. Amazon DynamoDB
2. Amazon RDS
3. Amazon S3
4. Amazon SQS

Correct Answer: 2

Explanation

Amazon Relational Database Service (RDS) provides managed relational databases that support SQL-based workloads and engines such as MySQL, PostgreSQL, MariaDB, Oracle, and SQL Server. RDS handles many administrative tasks, including infrastructure provisioning, backups, patching, and maintenance. DynamoDB provides NoSQL capabilities, S3 provides object storage, and SQS provides message queuing. RDS is therefore a suitable choice when an application requires a traditional relational database with SQL transactions and managed AWS infrastructure rather than a self-managed database server.

Question 134

Which AWS service can provide a global entry point with static IP addresses for applications running in multiple AWS Regions?

1. Amazon Route 53
2. Amazon CloudFront
3. AWS Global Accelerator
4. Elastic Load Balancing

Correct Answer: 3

Explanation

AWS Global Accelerator provides static anycast IP addresses that act as fixed entry points for applications. It can route traffic over the AWS global network to healthy endpoints in one or more AWS Regions. This architecture can improve application availability and network performance for globally distributed users. Route 53 provides DNS-based routing, CloudFront is primarily a content delivery network, and Elastic Load Balancing distributes traffic within supported application architectures. Global Accelerator is therefore the appropriate service when static global IP addresses and optimized application routing are required.

Question 135

Which AWS service can automatically transition older S3 objects to lower-cost storage classes based on predefined rules?

1. Amazon S3 Lifecycle
2. AWS CloudTrail
3. Amazon CloudWatch
4. AWS Config

Correct Answer: 1

Explanation

Amazon S3 Lifecycle policies allow organizations to automatically transition objects between storage classes or expire objects after specified periods. For example, frequently accessed objects can remain in S3 Standard initially and later transition to lower-cost storage classes as they become less frequently accessed. Lifecycle rules can help reduce storage costs while minimizing manual administration. CloudTrail records API activity, CloudWatch provides monitoring, and Config evaluates resource configurations. S3 Lifecycle is therefore the appropriate feature for automatically managing object storage classes and expiration according to predefined rules.

Question 136

Which AWS service can detect sensitive information such as personally identifiable information in Amazon S3 objects?

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

Correct Answer: 2

Explanation

Amazon Macie is a data security and privacy service designed to discover and help protect sensitive information stored in Amazon S3. It can use machine learning and pattern matching to identify sensitive data such as personally identifiable information and generate findings for review. GuardDuty focuses on threat detection, Inspector evaluates workload vulnerabilities, and Shield provides DDoS protection. Macie is therefore the appropriate AWS service when an organization needs to discover sensitive information within S3 data and improve its data security posture.

Question 137

A company wants an EC2 workload to survive the failure of an individual physical host while keeping multiple instances distributed across distinct hardware. Which placement group should be used?

1. Cluster placement group
2. Partition placement group
3. Spread placement group
4. Auto Scaling placement group

Correct Answer: 3

Explanation

A spread placement group places EC2 instances across distinct underlying hardware to reduce the likelihood that a single hardware failure affects multiple instances. This configuration is useful for workloads where individual instance failures must be isolated and where the number of instances is relatively limited. Cluster placement groups prioritize low-latency communication by placing instances close together, while partition placement groups divide instances into logical partitions for large distributed workloads. A spread placement group is therefore appropriate when minimizing correlated hardware failures is the primary requirement.

Question 138

Which AWS service can route incoming DNS requests to resources based on the geographic location of the requester?

1. Route 53 Geolocation routing
2. Route 53 Weighted routing
3. Route 53 Failover routing
4. Route 53 Latency-based routing

Correct Answer: 1

Explanation

Route 53 geolocation routing directs DNS responses based on the geographic location associated with the DNS request. Organizations can use this policy to serve users from region-specific endpoints, comply with geographic requirements, or provide localized experiences. Weighted routing distributes traffic according to configured weights, failover routing switches between primary and secondary resources, and latency-based routing selects an endpoint based on expected network latency. Geolocation routing is therefore the appropriate choice when DNS responses must be determined according to the user’s geographic location.

Question 139

Which AWS service provides a managed workflow for coordinating distributed application components using visual state-machine definitions?

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

Correct Answer: 2

Explanation

AWS Step Functions provides managed workflow orchestration using state machines. It can coordinate Lambda functions, AWS services, and application tasks through sequential, parallel, conditional, and error-handling steps. Each execution can be tracked, making it easier to monitor complex workflows and identify failures. EventBridge is primarily an event-routing service, SNS provides pub/sub notifications, and SQS provides message queues. Step Functions is therefore the appropriate service when an application requires coordinated multi-step processing with explicit workflow states and execution management.

Question 140

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. Security
3. Cost Optimization
4. Performance Efficiency

Correct Answer: 2

Explanation

The Security pillar of the AWS Well-Architected Framework focuses on protecting information and systems while maintaining business value. Important practices include implementing strong identity controls, applying least privilege, enabling traceability, protecting data in transit and at rest, and preparing for security incidents. Reliability focuses on recovery and consistent workload operation, Cost Optimization focuses on efficient spending, and Performance Efficiency focuses on using computing resources efficiently. Security is therefore the appropriate pillar when the primary concern is protecting AWS workloads, data, identities, and infrastructure from security risks.