# AWS SAA - Practice Quizzes 1
- [[AWS SAA - Practice Quizzes 1#**AWS Solutions Architect Associate Exam Quiz - Mock Exam 0**|Mock Exam 0]]
- [[AWS SAA - Mock Exam Answer Key#Mock Exam 0 - Answer Key|Mock Exam 0 Answer Key]]
- [[AWS SAA - Practice Quizzes 1#**AWS Solutions Architect Associate Exam Quiz - Mock Exam 1**|Mock Exam 1]]
- [[AWS SAA - Mock Exam Answer Key]]
---
### **AWS Solutions Architect Associate Exam Quiz - Mock Exam 0**
#### **Compute & EC2**
1. A company needs to host a highly available web application on AWS. The application must automatically scale during traffic spikes while maintaining minimal operational overhead. Which service should they use?
- A) EC2 instances with Auto Scaling and an Application Load Balancer
- B) AWS Lambda with API Gateway
- C) EC2 instances in a single AZ with an Elastic IP
- D) A single EC2 instance with an EBS volume
2. Your company is running an application on a **t3.medium EC2 instance**, but during peak hours, users report slow response times. How can you **optimize performance while minimizing costs**?
- A) Switch to an **m5.large instance**
- B) Use **Auto Scaling** to add more **t3.medium instances**
- C) Use an **EC2 Spot Instance** for additional capacity
- D) Change to an **r5.large instance**
3. A team is running a **stateless microservices application** using EC2 instances. They need to ensure that requests are evenly distributed while keeping costs low. What should they do?
- A) Use an **Application Load Balancer (ALB)** in front of the EC2 instances
- B) Use an **Elastic IP** for each EC2 instance and distribute traffic manually
- C) Use an **Amazon S3 static website** to serve the application
- D) Use **Route 53 failover routing**
#### **Storage & S3**
4. A healthcare provider needs to store patient records in Amazon S3. Compliance requirements dictate that once written, records **cannot be modified or deleted for 10 years**. How can this be enforced?
- A) Enable **S3 Versioning** and keep previous versions
- B) Apply an **S3 Lifecycle Policy** to retain objects for 10 years
- C) Enable **S3 Object Lock in Compliance Mode**
- D) Use **S3 Glacier Deep Archive**
5. Your organization stores large media files in an **S3 bucket**. You need to reduce storage costs but must ensure **immediate access** when required. Which storage class should you use?
- A) S3 Standard
- B) S3 Intelligent-Tiering
- C) S3 Glacier Flexible Retrieval
- D) S3 Glacier Deep Archive
6. A company runs **an on-premises data center** and needs to **migrate 50TB of data** to Amazon S3 securely. The internet connection is **too slow**. Which AWS service should they use?
- A) AWS Snowball
- B) AWS Direct Connect
- C) AWS DataSync
- D) AWS Transfer Family
#### **Networking & VPC**
7. A company has an **EC2 instance** in a **private subnet** that needs internet access to download software updates. What should they do?
- A) Attach an **Elastic IP**
- B) Add an **Internet Gateway** to the VPC
- C) Create a **NAT Gateway**
- D) Enable **VPC Peering**
8. Your architecture includes **multiple VPCs** that need **to communicate** with each other. The solution should **scale efficiently**. What should you use?
- A) VPC Peering
- B) AWS Direct Connect
- C) VPC Endpoints
- D) AWS Transit Gateway
9. You need to **secure incoming traffic** to a **public-facing web application** while blocking known **malicious IPs**. What should you implement?
- A) AWS Shield Advanced
- B) AWS WAF (Web Application Firewall)
- C) NACLs (Network ACLs)
- D) VPC Flow Logs
#### **Databases & RDS**
10. A company is running **a MySQL database** on **Amazon RDS**. They need **automated backups and failover** in case of an AZ failure. What should they do?
- A) Enable **Multi-AZ Deployment**
- B) Use **Read Replicas**
- C) Enable **Automated Snapshots**
- D) Deploy **RDS Proxy**
11. A startup needs a **scalable, NoSQL database** for a mobile application that will experience unpredictable traffic spikes. What AWS service should they use?
- A) Amazon Aurora
- B) Amazon DynamoDB
- C) Amazon RDS MySQL
- D) Amazon Redshift
12. An analytics team needs to run **complex queries on structured data** stored in **S3** using standard **SQL**. What should they use?
- A) Amazon Athena
- B) Amazon Redshift
- C) AWS Glue
- D) Amazon OpenSearch
#### **Security & Compliance**
13. A security team needs **detailed logs of API calls made within an AWS account** for compliance audits. What should they enable?
- A) AWS CloudTrail
- B) AWS Shield
- C) AWS IAM Access Analyzer
- D) Amazon GuardDuty
14. Your company requires **temporary, least-privilege access** to AWS resources for developers working on short-term projects. What should you use?
- A) IAM Policies
- B) IAM Roles
- C) IAM Users
- D) Service Control Policies (SCPs)
15. A company needs **DDoS protection** for a **public-facing web application** hosted on AWS. What AWS service should they use?
- A) AWS WAF
- B) AWS Shield
- C) AWS GuardDuty
- D) AWS Trusted Advisor
#### **High Availability & Fault Tolerance**
16. A company hosts a **multi-tier web application** on AWS. They want to ensure **zero downtime** if one AWS Region becomes unavailable. What should they implement?
- A) Deploy the application across **multiple Availability Zones**
- B) Use **Route 53 with failover routing** across **multiple AWS Regions**
- C) Enable **Auto Scaling** in one Availability Zone
- D) Use an **Elastic Load Balancer (ELB) with multi-AZ support**
17. A company’s **e-commerce platform** needs **automated recovery from EC2 failures** with minimal human intervention. What AWS feature should they use?
- A) Amazon EC2 Auto Scaling
- B) AWS Shield Advanced
- C) AWS Config Rules
- D) AWS Trusted Advisor
18. Your organization requires **five-nines (99.999%) availability** for its **global customer-facing application**. What should you do?
- A) Use an **Application Load Balancer** with instances in a **single AWS Region**
- B) Deploy to **multiple AWS Regions** with **Route 53 failover routing**
- C) Use **Amazon CloudFront** to cache static content
- D) Enable **Auto Scaling in a single AZ**
#### **Cost Optimization**
19. A startup wants to minimize costs for an **EC2-based batch processing job** that runs once per day. What instance type should they use?
- A) On-Demand Instances
- B) Reserved Instances
- C) Spot Instances
- D) Dedicated Hosts
20. Your company wants **to lower AWS compute costs** for a **steady-state database workload**. What should they use?
- A) Spot Instances
- B) Reserved Instances
- C) On-Demand Instances
- D) Lambda
21. An application runs on **t3.medium EC2 instances** but is experiencing **CPU credit depletion**. How can you reduce costs while maintaining performance?
- A) Use an **m5.large instance**
- B) Convert to **Reserved Instances**
- C) Use an **EC2 Auto Scaling group** with more **t3.medium instances**
- D) Switch to a **t3.large burstable instance**
#### **Networking & Content Delivery**
22. A global company needs to **deliver static and dynamic web content with low latency**. What AWS service should they use?
- A) Amazon Route 53
- B) AWS Global Accelerator
- C) Amazon CloudFront
- D) AWS Direct Connect
23. A client requires **private connectivity between their on-premises data center and AWS VPC**. What service should they use?
- A) AWS Direct Connect
- B) AWS VPN
- C) VPC Peering
- D) AWS PrivateLink
24. Your application is running on **multiple EC2 instances** behind an **Elastic Load Balancer**. Users in different regions report **inconsistent response times**. What should you do?
- A) Use **Amazon Route 53 latency-based routing**
- B) Move all traffic to a **single AWS Region**
- C) Use **AWS Global Accelerator**
- D) Increase the **EC2 instance type size**
#### **Monitoring & Logging**
25. A security team wants to track **suspicious activity across all AWS accounts** in an AWS Organization. What should they enable?
- A) AWS CloudTrail Organization Trail
- B) Amazon GuardDuty
- C) AWS Config Rules
- D) AWS Security Hub
26. Your application logs are stored in **Amazon CloudWatch Logs**. You need to **automatically detect anomalies in log data**. What should you use?
- A) AWS X-Ray
- B) Amazon CloudWatch Logs Insights
- C) Amazon CloudWatch Anomaly Detection
- D) AWS Trusted Advisor
27. A DevOps team wants **real-time notifications** when an **EC2 instance exceeds 80% CPU utilization**. What should they configure?
- A) AWS CloudTrail
- B) Amazon CloudWatch Alarms
- C) AWS Config
- D) AWS Shield
#### **Serverless & Containers**
28. A **microservices-based** application requires **event-driven messaging** between loosely coupled services. What should you use?
- A) Amazon SQS
- B) AWS Step Functions
- C) Amazon SNS
- D) Amazon EventBridge
29. Your company is **modernizing applications** by using **containerized workloads**. They want a **fully managed Kubernetes solution**. What should they use?
- A) Amazon ECS
- B) AWS Fargate
- C) Amazon EKS
- D) AWS Lambda
30. A startup wants to use a **serverless compute service** for running backend APIs. What AWS service should they use?
- A) Amazon EC2
- B) AWS Lambda
- C) Amazon Lightsail
- D) AWS Batch
#### **Disaster Recovery & Backups**
31. Your organization wants **automatic backups of an RDS database** with the ability to restore **to any point in time within 7 days**. What should you use?
- A) RDS Snapshots
- B) RDS Automated Backups
- C) AWS Backup
- D) Amazon S3 Versioning
32. A company requires **cross-region replication of S3 objects** for **disaster recovery**. What should they enable?
- A) Amazon S3 Transfer Acceleration
- B) Amazon S3 Replication
- C) Amazon CloudFront
- D) AWS DataSync
33. Your company needs **multi-region failover** for a **mission-critical application**. What AWS service should they use?
- A) AWS Elastic Disaster Recovery (DRS)
- B) Amazon S3 Intelligent-Tiering
- C) AWS Backup
- D) AWS Trusted Advisor
#### **Compute & EC2**
34. A company is migrating **an application running on-premises** to AWS. The application requires **consistent, predictable performance** and **dedicated physical servers**. What instance type should they use?
- A) On-Demand Instances
- B) Spot Instances
- C) Dedicated Hosts
- D) EC2 Auto Scaling
35. Your organization is running **an AI/ML workload** that requires **high-performance GPUs** for model training. What AWS service should they use?
- A) AWS Lambda
- B) Amazon EC2 G4 Instances
- C) AWS Batch
- D) Amazon SageMaker
36. An application requires **low-latency access** to compute resources and needs to be deployed **closer to users** in a **geographically distributed manner**. What service should you use?
- A) AWS Wavelength
- B) AWS Outposts
- C) Amazon Lightsail
- D) Amazon CloudFront
#### **Databases & RDS**
37. A company is running **a PostgreSQL database on-premises** and wants to migrate to AWS with minimal downtime. What service should they use?
- A) AWS Snowball
- B) AWS Database Migration Service (DMS)
- C) Amazon RDS Multi-AZ
- D) AWS Backup
38. Your application requires **millisecond read latency** and needs **a NoSQL database** that supports **automatic scaling**. What AWS service should you choose?
- A) Amazon RDS
- B) Amazon DynamoDB
- C) Amazon Aurora
- D) Amazon Redshift
39. A company wants **a fully managed data warehouse** for **big data analytics** with **columnar storage and massively parallel processing (MPP)**. What AWS service should they use?
- A) Amazon Athena
- B) Amazon RDS
- C) Amazon Redshift
- D) AWS Glue
#### **Networking & Security**
40. Your company has **a hybrid cloud architecture** and wants to establish a **dedicated private connection between AWS and their on-premises data center**. What AWS service should they use?
- A) AWS Direct Connect
- B) AWS VPN
- C) VPC Peering
- D) AWS PrivateLink
41. A business application running on **EC2 instances in a VPC** needs to securely access **AWS services (e.g., S3, DynamoDB) without using the public internet**. What should you implement?
- A) VPC Peering
- B) AWS Transit Gateway
- C) VPC Endpoints
- D) NAT Gateway
42. A financial company must **log and analyze API activity** across all AWS accounts in their organization. What AWS service should they enable?
- A) AWS Shield
- B) AWS Config
- C) AWS CloudTrail
- D) Amazon GuardDuty
#### **Storage & Backup**
43. A company has **100TB of archived compliance data** that **rarely needs to be accessed** but must be **retrievable within hours** when needed. What S3 storage class should they use?
- A) S3 Standard
- B) S3 Intelligent-Tiering
- C) S3 Glacier Flexible Retrieval
- D) S3 Glacier Deep Archive
44. A company's **EBS volume is running out of space**, but they cannot afford downtime. How can they expand storage capacity?
- A) Create a snapshot, create a new volume, and attach it to EC2
- B) Enable EBS Volume Auto-Scaling
- C) Modify the EBS volume size and resize the file system
- D) Add an instance store volume
45. Your company needs **cross-region disaster recovery** for Amazon EBS-backed **EC2 instances**. What is the recommended solution?
- A) Use EBS Snapshots and **copy them to another region**
- B) Enable **EBS Auto Scaling**
- C) Use **Amazon S3 Cross-Region Replication**
- D) Deploy a **Multi-AZ EC2 instance**
#### **Serverless & AI/ML**
46. A startup is building **a recommendation engine** and needs a **fully managed ML service** that simplifies training and deployment. What should they use?
- A) Amazon Rekognition
- B) AWS SageMaker
- C) AWS Lambda
- D) Amazon Forecast
47. Your application **requires real-time text translation** for **customer support chats**. What AWS service should you use?
- A) AWS Comprehend
- B) AWS Translate
- C) Amazon Polly
- D) AWS Lex
48. A retail business wants to **analyze customer emotions in product reviews**. What AWS service should they use?
- A) Amazon Rekognition
- B) AWS Comprehend
- C) AWS Kendra
- D) Amazon Forecast
#### **Cost Optimization & Hybrid Cloud**
49. A company wants to **reduce AWS costs** by automatically stopping **idle EC2 instances**. What AWS service should they use?
- A) AWS Auto Scaling
- B) AWS Compute Optimizer
- C) AWS Cost Explorer
- D) AWS Budgets
50. Your organization wants **to extend on-premises storage** to AWS while ensuring **low-latency access** to frequently used data. What should they use?
- A) AWS Storage Gateway
- B) Amazon S3 Glacier
- C) AWS Snowball Edge
- D) Amazon FSx
51. A business is moving **mainframe workloads** to AWS and needs a service to **replatform or refactor COBOL-based applications**. What AWS service should they use?
- A) AWS Migration Hub
- B) AWS Mainframe Modernization
- C) AWS Snowball
- D) AWS DMS
#### **Disaster Recovery & Compliance**
52. A company requires **business continuity** in the event of a regional failure. They need an **automated solution** that replicates **entire applications to another AWS Region**. What service should they use?
- A) AWS Elastic Disaster Recovery
- B) Amazon S3 Replication
- C) AWS Backup
- D) AWS Resilience Hub
---
### **AWS Solutions Architect Associate Exam Quiz - Mock Exam 1**
---
### **Compute & EC2**
1. A company is designing a **fault-tolerant web application** that requires automatic scaling and load balancing. Which AWS services should they use?
- A) Amazon EC2, Auto Scaling, and an Elastic Load Balancer
- B) AWS Lambda and an API Gateway
- C) EC2 instances with manually configured scaling policies
- D) Amazon S3 and CloudFront
2. An application running on an **m5.large EC2 instance** is experiencing performance issues due to high CPU usage. What is the most cost-effective way to improve performance?
- A) Switch to an **m5.xlarge instance**
- B) Enable **Auto Scaling** and add additional **m5.large instances**
- C) Use an **EC2 Spot Instance**
- D) Migrate the workload to AWS Lambda
3. A company needs to **host a microservices-based architecture** in AWS with minimal operational overhead. Which service should they use?
- A) AWS Fargate
- B) Amazon EC2 with Auto Scaling
- C) Amazon Lightsail
- D) AWS Outposts
### **Storage & S3**
4. A business requires **cost-effective long-term storage** for compliance documents that must be **retrieved within minutes when needed**. What S3 storage class should they use?
- A) S3 Standard
- B) S3 Glacier Flexible Retrieval
- C) S3 Intelligent-Tiering
- D) S3 Glacier Deep Archive
5. A company is **migrating on-premises storage to AWS** and wants to **move 100TB of data securely** in the **fastest way possible**. What should they use?
- A) AWS Direct Connect
- B) AWS DataSync
- C) AWS Snowball Edge
- D) S3 Transfer Acceleration
6. Your organization needs to provide **access logs for compliance audits** for objects stored in an **Amazon S3 bucket**. What should you enable?
- A) AWS CloudTrail
- B) S3 Access Logs
- C) Amazon GuardDuty
- D) S3 Object Lock
### **Networking & VPC**
7. An EC2 instance in a **private subnet** must connect to **AWS services like S3 and DynamoDB**. What is the most secure method to achieve this?
- A) Attach an **Elastic IP** to the instance
- B) Use a **NAT Gateway**
- C) Configure a **VPC Endpoint**
- D) Allow outbound traffic via an **Internet Gateway**
8. A company has **two VPCs in different AWS Regions** that need **to communicate securely with each other**. What is the most scalable solution?
- A) Use **VPC Peering**
- B) Use an **AWS Transit Gateway**
- C) Set up an **IPsec VPN Connection**
- D) Deploy **AWS Direct Connect**
9. A company’s **on-premises data center** must communicate **privately** with AWS over a **dedicated connection**. Which AWS service provides this capability?
- A) AWS Direct Connect
- B) AWS VPN
- C) VPC Peering
- D) AWS PrivateLink
### **Databases & RDS**
10. A company is **migrating an Oracle database** to AWS and requires **minimal downtime**. What is the best migration strategy?
- A) Use AWS Snowball
- B) Use AWS Database Migration Service (DMS)
- C) Manually export and import the database
- D) Use RDS Snapshots
11. A developer needs a **NoSQL database** that provides **single-digit millisecond latency** and can **auto-scale based on demand**. What should they use?
- A) Amazon RDS
- B) Amazon Redshift
- C) Amazon DynamoDB
- D) Amazon Aurora
12. A business wants to **run analytical queries on structured data stored in Amazon S3** using **SQL**. Which AWS service should they use?
- A) Amazon Athena
- B) Amazon Redshift Spectrum
- C) AWS Glue
- D) Amazon OpenSearch
### **Security & Compliance**
13. A security team needs **detailed logs of all API calls made within an AWS account**. What should they enable?
- A) AWS Shield Advanced
- B) AWS CloudTrail
- C) Amazon GuardDuty
- D) AWS Security Hub
14. A company wants **to enforce least-privilege access policies** for AWS resources. What is the recommended practice?
- A) Use **AWS Managed Policies** for all IAM users
- B) Assign **IAM Policies to IAM Groups** instead of individual users
- C) Use **root account** for administrative tasks
- D) Enable **Multi-Factor Authentication (MFA) on all IAM roles**
15. Your organization must comply with **GDPR data protection regulations**. How can AWS help meet compliance requirements?
- A) Enable **AWS Shield**
- B) Use **AWS Artifact** for compliance reports
- C) Enable **Amazon Macie** for sensitive data detection
- D) Store logs in **Amazon S3 Standard**
### **Disaster Recovery & Backups**
16. A financial institution needs **multi-region disaster recovery** for its **EC2-based application**. What is the best solution?
- A) Enable **EBS Multi-AZ Replication**
- B) Use **AWS Elastic Disaster Recovery (DRS)**
- C) Enable **EC2 Auto Scaling**
- D) Use **Amazon Route 53 latency-based routing**
17. A business requires **point-in-time recovery** for **Amazon RDS databases**. Which feature should they enable?
- A) RDS Snapshots
- B) RDS Automated Backups
- C) AWS Backup
- D) Amazon S3 Versioning
18. Your company requires **long-term, cost-effective backups** for **compliance data** that **must be retained for 10 years**. What should they use?
- A) Amazon S3 Glacier Deep Archive
- B) Amazon S3 Standard
- C) AWS Backup
- D) Amazon RDS Snapshots
### **High Availability & Fault Tolerance**
19. A business-critical application must remain available even if **one AWS Region fails**. What is the best strategy?
- A) Deploy the application across **multiple Availability Zones**
- B) Use **Route 53 with failover routing across multiple AWS Regions**
- C) Use **Amazon CloudFront** to cache content globally
- D) Deploy a **Multi-AZ RDS instance**
20. A company needs to **scale its EC2 instances based on incoming web traffic**. What AWS service should they use?
- A) AWS Auto Scaling
- B) AWS Fargate
- C) AWS Elastic Beanstalk
- D) AWS Outposts
21. A team wants to run **batch jobs that automatically scale based on demand** without managing infrastructure. What AWS service should they use?
- A) AWS Batch
- B) AWS Lambda
- C) Amazon ECS
- D) AWS Glue
### **Networking & Connectivity**
22. A company's EC2 instances in a **private subnet** need to securely connect to the internet for updates. What should they use?
- A) NAT Gateway
- B) Internet Gateway
- C) VPC Peering
- D) AWS Global Accelerator
23. Your application requires **a highly available DNS solution** that can route traffic to the **nearest AWS Region** based on latency. What should you use?
- A) Amazon CloudFront
- B) AWS Transit Gateway
- C) AWS Global Accelerator
- D) Amazon Route 53 Latency Routing
24. A company needs **secure private communication between multiple VPCs**. What is the best option?
- A) VPC Peering
- B) AWS Transit Gateway
- C) AWS Direct Connect
- D) AWS Site-to-Site VPN
### **Databases & Data Analytics**
25. A company wants **an AWS-native service** to run **OLAP (Online Analytical Processing) queries** on large datasets. What should they use?
- A) Amazon RDS
- B) Amazon Redshift
- C) Amazon DynamoDB
- D) Amazon Aurora
26. A startup needs a **fully managed relational database** that can automatically scale based on demand. What should they use?
- A) Amazon RDS
- B) Amazon Aurora Serverless
- C) Amazon DynamoDB
- D) Amazon ElastiCache
27. Your application must process **real-time streaming data from IoT devices**. What AWS service should be used?
- A) Amazon Kinesis Data Streams
- B) AWS Glue
- C) Amazon S3
- D) Amazon EMR
### **Security & Identity Management**
28. A security team wants to monitor **unauthorized access attempts** across all AWS accounts. What AWS service should they enable?
- A) Amazon GuardDuty
- B) AWS Security Hub
- C) AWS Shield Advanced
- D) Amazon Macie
29. Your organization needs **temporary AWS access for third-party contractors**. What is the best practice?
- A) Create an IAM user for each contractor
- B) Use IAM Roles with **temporary security credentials**
- C) Share AWS root credentials
- D) Enable AWS Shield
30. A company wants **to control which AWS services can be used across multiple accounts**. What AWS feature should they implement?
- A) AWS Organizations Service Control Policies (SCPs)
- B) IAM Roles
- C) AWS Trusted Advisor
- D) AWS Config
### **Serverless Computing**
31. A company is building **a real-time data processing pipeline** that must **scale automatically**. What AWS service should they use?
- A) AWS Lambda
- B) Amazon EC2
- C) Amazon RDS
- D) AWS Batch
32. Your team is developing **an event-driven architecture** that triggers functions **based on uploaded files in S3**. What AWS service should they use?
- A) AWS Lambda
- B) Amazon EC2
- C) AWS Glue
- D) AWS Fargate
33. A web application needs to **process millions of API requests per second** using a **fully managed, scalable backend**. What AWS service should they use?
- A) Amazon API Gateway with AWS Lambda
- B) EC2 with an Application Load Balancer
- C) Amazon RDS Multi-AZ deployment
- D) AWS Fargate with ECS
### **Storage & Backup**
34. A company wants **automatic backups for their Amazon EBS volumes**. What AWS service should they use?
- A) Amazon EBS Snapshots
- B) AWS Backup
- C) Amazon S3 Glacier
- D) Amazon FSx
35. Your company needs **to move large files between on-premises storage and AWS quickly**. What is the best option?
- A) AWS DataSync
- B) AWS Snowball Edge
- C) AWS Transfer Family
- D) AWS Storage Gateway
36. A company needs **a distributed file system that is highly scalable** and supports **HPC (High-Performance Computing) workloads**. What AWS service should they use?
- A) Amazon FSx for Lustre
- B) Amazon S3
- C) Amazon RDS
- D) AWS Snowcone
### **Cost Optimization**
37. A company wants **to forecast AWS spending and set cost limits**. What AWS service should they use?
- A) AWS Cost Explorer
- B) AWS Budgets
- C) AWS Trusted Advisor
- D) AWS Compute Optimizer
38. A business with **a steady-state workload** wants to reduce compute costs. What pricing model should they use?
- A) On-Demand Instances
- B) Reserved Instances
- C) Spot Instances
- D) Dedicated Hosts
39. Your team is running **batch processing jobs on EC2** and wants to **minimize costs** while ensuring jobs complete successfully. What should they use?
- A) Spot Instances with a fallback to On-Demand
- B) Reserved Instances
- C) AWS Lambda
- D) EC2 Auto Scaling
### **Disaster Recovery & Resilience**
40. A company requires **multi-Region replication of RDS databases** for disaster recovery. What should they use?
- A) Amazon RDS Read Replicas
- B) Amazon Aurora Global Database
- C) Amazon DynamoDB Streams
- D) AWS Backup
41. Your company wants **a cost-effective solution** for **backing up EC2 instances automatically**. What should they use?
- A) AWS Backup
- B) Amazon S3 Replication
- C) AWS CloudFormation
- D) AWS Snowball
42. A government agency needs **to store compliance data for 20 years** in AWS. What service should they use?
- A) Amazon S3 Glacier Deep Archive
- B) AWS Backup
- C) Amazon EFS
- D) AWS Glue Data Catalog