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

 

Question 81

Which AWS service can be used to authenticate application users and provide sign-up and sign-in functionality?

1. AWS IAM
2. AWS Organizations
3. Amazon Cognito
4. AWS Secrets Manager

Correct Answer: 3

Explanation

Amazon Cognito provides authentication and user management capabilities for applications. It can support user sign-up, sign-in, password management, and access control for web and mobile applications. Cognito User Pools can manage application users, while Identity Pools can provide temporary AWS credentials for authorized users when required. IAM is primarily designed for controlling access to AWS resources rather than managing general application users. Organizations manages multiple AWS accounts, while Secrets Manager stores sensitive credentials. Cognito is therefore the appropriate choice for application user authentication.

Question 82

Which EC2 placement group is designed to place instances close together within an Availability Zone to achieve very low network latency and high network throughput?

1. Cluster placement group
2. Spread placement group
3. Partition placement group
4. Dedicated Host group

Correct Answer: 1

Explanation

An EC2 cluster placement group places instances close together within an Availability Zone. This arrangement is designed to provide low network latency and high network throughput between instances, making it suitable for tightly coupled workloads such as high-performance computing and distributed applications requiring fast communication. Spread placement groups distribute instances across distinct underlying hardware, while partition placement groups divide instances into logical partitions. Cluster placement groups are therefore the appropriate choice when minimizing network latency between EC2 instances is the primary requirement.

Question 83

A company wants to prevent unauthorized users from making AWS API calls even if an IAM policy grants them permission. Which AWS Organizations feature can impose account-level restrictions?

1. IAM groups
2. Security groups
3. Service Control Policies
4. Network ACLs

Correct Answer: 3

Explanation

Service Control Policies (SCPs) in AWS Organizations define the maximum available permissions for accounts or organizational units. An SCP can restrict actions across member accounts even when an IAM identity policy would otherwise allow those actions. SCPs do not directly grant permissions; instead, they establish permission boundaries at the organization or account level. IAM groups organize permissions for users, security groups control network traffic, and Network ACLs filter subnet traffic. SCPs are therefore appropriate when centralized organizational restrictions are required across AWS accounts.

Question 84

Which AWS service provides a fully managed DNS service with health checks and routing policies for directing users to application endpoints?

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

Correct Answer: 2

Explanation

Amazon Route 53 is a highly available and scalable DNS service that supports domain name resolution, health checks, and several routing policies. Organizations can use policies such as latency-based, weighted, failover, and geolocation routing to direct users toward appropriate application endpoints. CloudFront is primarily a content delivery service, Global Accelerator provides optimized global network routing with static IP addresses, and Elastic Load Balancing distributes traffic among targets. Route 53 is therefore the correct choice when DNS management and intelligent DNS-based traffic routing are required.

Question 85

Which AWS feature allows an EC2 instance to execute commands or install software automatically when the instance first launches?

1. EC2 user data
2. Amazon Machine Image
3. Security group
4. Elastic IP address

Correct Answer: 1

Explanation

EC2 user data allows commands or scripts to run during the initial launch of an EC2 instance. It is commonly used to install software, configure operating system settings, start services, or perform other bootstrap activities automatically. This capability helps organizations automate instance initialization without manually connecting to every server. An AMI provides the template used to launch instances, security groups control network traffic, and Elastic IP addresses provide static public addressing. EC2 user data is therefore the appropriate feature for automated startup configuration.

Question 86

A company needs a storage service that can be mounted simultaneously by multiple Linux EC2 instances across Availability Zones. Which service should be used?

1. Amazon EBS
2. Amazon S3
3. Amazon EFS
4. EC2 Instance Store

Correct Answer: 3

Explanation

Amazon Elastic File System (EFS) provides managed file storage that can be mounted concurrently by multiple Linux-based compute resources. EFS is designed to provide shared file access and can be accessed across Availability Zones within an AWS Region. Unlike EBS, which is primarily block storage associated with specific instances, EFS provides a shared file system. S3 provides object storage, while Instance Store provides temporary local block storage. EFS is therefore appropriate when multiple Linux EC2 instances require simultaneous access to the same files.

Question 87

Which AWS service provides a managed content delivery network that caches content at edge locations close to users?

1. Amazon CloudFront
2. Amazon Route 53
3. AWS Direct Connect
4. Amazon S3

Correct Answer: 1

Explanation

Amazon CloudFront is AWS’s content delivery network that distributes content through a global network of edge locations. It caches eligible content closer to end users, reducing latency and decreasing the number of requests that must reach the origin. CloudFront can deliver static and dynamic content, APIs, and streaming media, and it integrates with services such as S3 and Elastic Load Balancing. Route 53 provides DNS services, Direct Connect provides dedicated network connectivity, and S3 provides object storage. CloudFront is therefore the correct choice for global content delivery.

Question 88

A company requires a private connection from a VPC to an AWS service using private IP addresses and without traversing the public internet. Which option is appropriate for services supported by AWS PrivateLink?

1. Internet Gateway
2. NAT Gateway
3. Interface VPC Endpoint
4. Elastic IP address

Correct Answer: 3

Explanation

An Interface VPC Endpoint uses AWS PrivateLink to provide private connectivity between resources in a VPC and supported AWS services or endpoint services. The endpoint creates elastic network interfaces with private IP addresses inside selected subnets. Traffic can therefore remain within the AWS network without requiring public internet access. NAT Gateways provide outbound internet connectivity, Internet Gateways provide VPC internet access, and Elastic IP addresses provide static public addressing. An Interface VPC Endpoint is therefore the appropriate solution for private access to supported services through PrivateLink.

Question 89

Which AWS service is designed to collect AWS API activity and record information about actions performed in an AWS account?

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

Correct Answer: 3

Explanation

AWS CloudTrail records API activity and account actions across AWS environments. It can capture information such as who performed an action, which API operation was called, when the action occurred, and which resources were affected. These records are valuable for security investigations, governance, compliance, and operational troubleshooting. CloudWatch focuses on monitoring metrics, logs, and alarms, while AWS Config tracks resource configurations and Inspector evaluates workloads for vulnerabilities. CloudTrail is therefore the appropriate service for auditing AWS API activity and identifying actions performed within an account.

Question 90

Which Amazon RDS capability is primarily designed to increase read capacity for applications that receive many read requests?

1. Multi-AZ deployment
2. Read Replicas
3. Automated backups
4. Database parameter groups

Correct Answer: 2

Explanation

Amazon RDS Read Replicas are designed to improve read scalability by asynchronously replicating data from a primary database to one or more replica databases. Applications can direct read-heavy workloads to the replicas while the primary database continues handling writes. This can reduce the read workload on the primary database and improve application performance. Multi-AZ deployments primarily improve availability and failover rather than read scaling. Automated backups support recovery, while parameter groups manage database configuration. Read Replicas are therefore the appropriate solution for scaling database read operations.

Question 91

Which AWS service provides a managed cache that can reduce database load by storing frequently accessed data in memory?

1. Amazon ElastiCache
2. Amazon S3
3. Amazon EBS
4. Amazon Athena

Correct Answer: 1

Explanation

Amazon ElastiCache provides managed in-memory caching using engines such as Valkey and Memcached. Applications can store frequently requested information in memory, allowing subsequent requests to retrieve data more quickly and reducing the number of queries sent to backend databases. This can improve application responsiveness and reduce database workload. S3 provides object storage, EBS provides block storage, and Athena is a query service for analyzing data. ElastiCache is therefore the appropriate service when an application needs a managed in-memory caching layer.

Question 92

A company wants to analyze large datasets stored in Amazon S3 using standard SQL without loading the data into a separate database. Which service should it use?

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

Correct Answer: 2

Explanation

Amazon Athena is a serverless interactive query service that allows users to analyze data stored directly in Amazon S3 using standard SQL. Because Athena queries data in place, organizations do not need to load the data into a traditional database before performing analysis. This makes it useful for log analysis, ad hoc queries, and data lake workloads. Redshift is a managed data warehouse, RDS provides relational databases, and DynamoDB provides NoSQL database capabilities. Athena is therefore appropriate when SQL analysis of S3 data without database loading is required.

Question 93

Which AWS service can automatically adjust the number of EC2 instances based on demand while maintaining a desired capacity?

1. Amazon CloudWatch
2. Elastic Load Balancing
3. Amazon EC2 Auto Scaling
4. AWS CloudTrail

Correct Answer: 3

Explanation

Amazon EC2 Auto Scaling automatically adjusts the number of EC2 instances in an Auto Scaling group according to configured policies and workload demand. It can maintain a minimum, maximum, and desired capacity while launching or terminating instances as conditions change. Auto Scaling can use CloudWatch metrics to trigger scaling actions and can work with Elastic Load Balancing to distribute traffic across healthy instances. CloudWatch provides monitoring, ELB distributes traffic, and CloudTrail records API activity. EC2 Auto Scaling is therefore the appropriate service for automatic compute capacity adjustment.

Question 94

Which AWS service provides a managed serverless compute environment for running containers without managing EC2 instances?

1. Amazon ECS with Fargate
2. Amazon EKS with managed nodes
3. Amazon EC2
4. Amazon Lightsail

Correct Answer: 1

Explanation

Amazon ECS with AWS Fargate allows organizations to run containers without provisioning or managing the underlying EC2 instances. Fargate provides serverless compute for containers while ECS manages container orchestration and task placement. This can reduce infrastructure administration and allows teams to focus on application workloads. EC2 requires customers to manage instances, EKS with managed nodes still involves managed worker nodes, and Lightsail is designed for simplified application hosting. ECS with Fargate is therefore suitable when serverless container execution is required.

Question 95

Which AWS service can provide automated backups across AWS services and help centrally manage backup policies?

1. Amazon S3
2. AWS Backup
3. AWS Config
4. Amazon CloudWatch

Correct Answer: 2

Explanation

AWS Backup provides centralized management and automation of backups across supported AWS services. Organizations can create backup plans that define schedules, retention periods, backup vaults, and lifecycle policies. This makes it easier to apply consistent backup requirements across multiple resources and accounts. S3 can store objects and backups but does not provide the same centralized backup-management capabilities, while Config focuses on configuration compliance and CloudWatch handles monitoring. AWS Backup is therefore the appropriate service for centrally managing automated backups across supported AWS resources.

Question 96

A company wants to distribute incoming HTTP requests based on URL paths, such as sending /images requests to one target group and /api requests to another. Which load balancer should be used?

1. Network Load Balancer
2. Gateway Load Balancer
3. Classic Load Balancer
4. Application Load Balancer

Correct Answer: 4

Explanation

An Application Load Balancer supports Layer 7 HTTP and HTTPS routing features, including path-based routing. Administrators can configure listener rules to send requests with different URL paths to different target groups. This makes ALB suitable for microservices and applications where multiple services share a common domain but require separate backend destinations. Network Load Balancer is optimized for high-performance Layer 4 traffic, while Gateway Load Balancer is designed for deploying network virtual appliances. Application Load Balancer is therefore the appropriate choice for path-based HTTP routing.

Question 97

Which AWS service helps assess EC2 instances and container images for software vulnerabilities?

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

Correct Answer: 1

Explanation

Amazon Inspector is a vulnerability management service that continuously assesses supported AWS workloads for software vulnerabilities and unintended network exposure. It can evaluate resources such as EC2 instances and container images and generate findings when security issues are identified. GuardDuty focuses on threat detection, Shield provides DDoS protection, and Macie helps discover and protect sensitive data in Amazon S3. Inspector is therefore the appropriate service when an organization needs automated vulnerability assessments for compute workloads and container images.

Question 98

Which AWS storage option is most appropriate for an EC2 application that requires temporary, high-performance local storage and can tolerate data loss when the instance stops or terminates?

1. Amazon EBS
2. Amazon S3
3. EC2 Instance Store
4. Amazon EFS

Correct Answer: 3

Explanation

EC2 Instance Store provides temporary block-level storage physically associated with the host running an EC2 instance. It can deliver high-performance local storage and is useful for temporary data, caches, buffers, and workloads that can tolerate data loss. Instance Store data is not persistent through certain instance lifecycle events, so it should not be used as the primary storage location for data that must survive instance failure or termination. EBS provides persistent block storage, EFS provides shared file storage, and S3 provides durable object storage.

Question 99

Which AWS service allows an organization to define an event-driven architecture by routing events from AWS services and applications to targets?

1. Amazon SQS
2. Amazon EventBridge
3. Amazon EBS
4. AWS Direct Connect

Correct Answer: 2

Explanation

Amazon EventBridge is a serverless event bus service that enables applications and AWS services to communicate through events. Rules can match incoming events based on their attributes and route them to appropriate targets, enabling loosely coupled and event-driven architectures. EventBridge can help connect applications without requiring direct dependencies between individual components. SQS is primarily a message queue, EBS provides block storage, and Direct Connect provides dedicated network connectivity. EventBridge is therefore the appropriate choice for routing events between AWS services and applications.

Question 100

Which AWS Well-Architected Framework pillar focuses on the ability of a workload to consistently perform its intended function and recover from failures?

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

Correct Answer: 1

Explanation

The Reliability pillar of the AWS Well-Architected Framework focuses on ensuring that workloads perform their intended functions correctly and consistently while recovering quickly from failures. Reliability practices include automatically recovering from failures, testing recovery procedures, scaling horizontally, and designing architectures that avoid single points of failure. Cost Optimization focuses on controlling expenditure, Operational Excellence focuses on running and improving workloads effectively, and Sustainability focuses on minimizing environmental impacts. Reliability is therefore the appropriate pillar for designing systems that remain dependable and recover effectively from disruptions.