Question 1

Which service allows you to run Docker containers on AWS without managing servers?

Accepted Answer

ECS

Answer

S3

Answer

EC2

Answer

Lambda

Question 2

What does the term 'cluster' refer to in Amazon ECS?

Accepted Answer

A logical grouping of tasks and services

Answer

A type of network

Answer

An individual Docker container

Answer

A physical server

Question 3

What is the primary use case for AWS Batch?

Accepted Answer

Large scale data processing and analytics

Answer

Static website generation

Answer

Email services

Answer

Web hosting

Question 4

Which feature of AWS Batch allows it to efficiently manage job scheduling?

Accepted Answer

Job queues

Answer

Auto-scaling groups

Answer

Virtual Private Cloud

Answer

Elastic Load Balancing

Question 5

What is the default retention period for data stored in a Kinesis stream?

Accepted Answer

24 hours

Answer

7 days

Answer

12 hours

Answer

48 hours

Question 6

What is a key feature of Kinesis Streams regarding data ingestion capacity?

Accepted Answer

It can scale from low to near infinite data rates

Answer

It has a single consumer access limitation

Answer

It is limited to a maximum of 1000 records per second

Answer

It can only handle a fixed amount of data

Question 7

How many consumers can access data from a Kinesis stream's moving window simultaneously?

Accepted Answer

Multiple consumers

Answer

Five consumers

Answer

Two consumers

Answer

Only one consumer

Question 8

Which of the following statements about the high availability of Kinesis is true?

Accepted Answer

It is highly available in a region by design

Answer

It requires manual configuration for high availability

Answer

It is only available in select regions

Answer

It is not designed for availability

Question 9

What happens to the data stored in a Kinesis stream after the default retention period of 24 hours?

Accepted Answer

It is no longer accessible

Answer

It is transferred to S3 automatically

Answer

It is downgraded to lower quality

Answer

It is archived permanently

Question 10

What is the primary purpose of Kinesis Streams?

Accepted Answer

To ingest and process real-time streaming data

Answer

To serve static web content

Answer

To run batch processing jobs

Answer

To store data permanently

Question 11

What can be done to extend the data retention period in Kinesis Streams beyond the default 24 hours?

Accepted Answer

Increase the retention period at additional cost

Answer

Data can only be archived after 24 hours

Answer

Switch to a different streaming service

Answer

Data retention cannot be changed

Question 12

Which of the following best describes the basic entity of Kinesis Streams?

Accepted Answer

A Kinesis stream

Answer

A Kinesis shard

Answer

A Kinesis consumer

Answer

A Kinesis partition

Question 13

What type of service is Kinesis within the AWS ecosystem?

Accepted Answer

A scalable streaming service

Answer

A database service

Answer

A serverless computing service

Answer

A content delivery network

Question 14

What is the effect of having multiple consumers accessing a Kinesis stream?

Accepted Answer

They can each independently process the same data

Answer

They will be limited to a single throughput

Answer

They will automatically aggregate their results

Answer

They will compete for the data and only one will succeed

Question 15

Which of the following API types provided by Amazon API Gateway allows for full-duplex communication between clients and servers?

Accepted Answer

WebSocket API

Answer

REST API

Answer

GraphQL API

Answer

HTTP API

Question 16

What is the primary purpose of AWS App Runner?

Accepted Answer

Managed container service for application deployment

Answer

Highly scalable object storage

Answer

Serverless compute service

Answer

Function orchestration service

Question 17

Which AWS service is primarily used for building serverless applications and provides a way to manage functions as a service?

Accepted Answer

AWS Lambda

Answer

AWS App Runner

Answer

Amazon ECS

Answer

Amazon Elastic Beanstalk

Question 18

Which integration method in Amazon API Gateway allows you to connect your API to AWS services directly?

Accepted Answer

AWS Service Integration

Answer

Lambda Integration

Answer

HTTP Integration

Answer

Mock Integration

Question 19

What feature of AWS AppSync allows applications to receive real-time updates?

Accepted Answer

Subscriptions

Answer

Mutations

Answer

Queries

Answer

Data Sources

Question 20

In Amazon ECS, what are the two primary launch types that define how you run your containers?

Accepted Answer

EC2 and Fargate

Answer

Lambda and App Runner

Answer

EKS and ECS

Answer

Direct and Indirect

Question 21

Which feature of Amazon EventBridge allows for the routing of events from different sources to specific targets?

Accepted Answer

Event Rules

Answer

Schemas

Answer

Event Buses

Answer

Event Patterns

Question 22

What is the main advantage of using Amazon App Runner compared to AWS Elastic Beanstalk?

Accepted Answer

Simplicity in deploying containerized applications without infrastructure management

Answer

More granular control over EC2 instances

Answer

Better support for traditional web applications

Answer

Enhanced networking capabilities with VPC

Question 23

Which of the following is a key benefit of using AWS Lambda for serverless computing?

Accepted Answer

Pay-as-you-go pricing model

Answer

Fixed monthly subscription fee

Answer

Only supports synchronous invocation

Answer

Requires provisioning of servers

Question 24

What is a primary function of Amazon SQS (Simple Queue Service)?

Accepted Answer

Message queuing service for decoupling applications

Answer

API management and monitoring

Answer

Real-time data streaming

Answer

Persistent file storage

Question 25

What is the primary benefit of using AWS ElastiCache with CloudFront for caching?

Accepted Answer

Reduced latency for users accessing dynamic content

Answer

Reduced security for cached data

Answer

Increased server load during peak times

Answer

Increased data storage costs

Question 26

Which caching layer is primarily designed for in-memory data storage in AWS?

Accepted Answer

Amazon ElastiCache

Answer

Amazon S3

Answer

AWS Lambda

Answer

Amazon RDS

Question 27

What type of caching does AWS CloudFront primarily provide?

Accepted Answer

Content Delivery Network (CDN) caching

Answer

Database caching

Answer

In-memory caching

Answer

File system caching

Question 28

What is a key advantage of caching web content using CloudFront in conjunction with ElastiCache?

Accepted Answer

Lower load on origin servers

Answer

Less control over data consistency

Answer

Increased server provisioning time

Answer

Higher data transfer costs

Question 29

Which of the following correctly describes a scenario where using ElastiCache with CloudFront is beneficial?

Accepted Answer

Serving frequently requested data with low latency

Answer

Analyzing large datasets

Answer

Backing up databases efficiently

Answer

Storing files for long-term use

Question 30

Which caching mechanism does Amazon CloudFront use to improve content delivery speed?

Accepted Answer

Edge caching

Answer

Cold storage

Answer

Object storage

Answer

Block storage

Question 31

What feature allows AWS ElastiCache to automatically adapt to workload demands?

Accepted Answer

Auto scaling

Answer

Load balancing

Answer

Static provisioning

Answer

Manual scaling

Question 32

What is the role of a cache eviction policy in ElastiCache?

Accepted Answer

To determine which items to remove when the cache is full

Answer

To enhance data encryption

Answer

To increase network security

Answer

To schedule automatic backups

Question 33

Which protocol does Amazon CloudFront utilize for secure content delivery?

Accepted Answer

HTTPS

Answer

FTP

Answer

SSH

Answer

SMTP

Question 34

What is the main purpose of using a Content Delivery Network (CDN) like CloudFront?

Accepted Answer

To reduce latency by caching content closer to users

Answer

To enhance data analytics

Answer

To manage user authentication

Answer

To increase storage capacity

Question 35

What AWS service is primarily used for migrating databases to the cloud?

Accepted Answer

AWS Database Migration Service (DMS)

Answer

AWS Snowball

Answer

AWS Storage Gateway

Answer

AWS Simple Storage Service (S3)

Question 36

Which AWS service can be used to manage and automate the movement of data between on-premises storage and the cloud?

Accepted Answer

AWS Storage Gateway

Answer

AWS Elastic Beanstalk

Answer

AWS Lambda

Answer

AWS Direct Connect

Question 37

What technology allows for the rapid transfer of large amounts of data to AWS using physical devices?

Accepted Answer

AWS Snowball

Answer

AWS Transfer Family

Answer

AWS Elastic File System (EFS)

Answer

AWS DataSync

Question 38

Which service is specifically designed for online data transfer and synchronization between on-premises storage and AWS?

Accepted Answer

AWS DataSync

Answer

AWS Snowball

Answer

AWS Lambda

Answer

AWS Storage Gateway

Question 39

What is the primary purpose of AWS Migration Hub?

Accepted Answer

To provide a centralized location for tracking the progress of application migrations

Answer

To manage on-premises databases

Answer

To store and analyze data

Answer

To create virtual machines

Question 40

Which service helps automate the process of moving data from on-premises or cloud storage to AWS using a simple web interface?

Accepted Answer

AWS DataSync

Answer

AWS Transfer for SFTP

Answer

AWS Snowball

Answer

AWS Storage Gateway

Question 41

Which AWS service is best suited for migrating virtual machines to the cloud?

Accepted Answer

AWS Migrate

Answer

AWS Storage Gateway

Answer

AWS DataSync

Answer

AWS Snowball

Question 42

What AWS service streamlines the transfer of files to and from AWS S3 using a local application?

Accepted Answer

AWS Transfer for SFTP

Answer

AWS DataSync

Answer

AWS Storage Gateway

Answer

AWS Snowball

Question 43

Which AWS service is designed to facilitate the transfer of large amounts of archival data to AWS, often using shipping methods?

Accepted Answer

AWS Snowball

Answer

AWS DataSync

Answer

AWS Storage Gateway

Answer

AWS Direct Connect

Question 44

Which service provides a virtual bridge between on-premises applications and cloud-based storage services?

Accepted Answer

AWS Storage Gateway

Answer

AWS Snowball

Answer

AWS CloudFormation

Answer

AWS DataSync

Question 45

Which AWS service provides a managed security service that helps to continuously monitor and assess security and compliance?

Accepted Answer

AWS Security Hub

Answer

AWS GuardDuty

Answer

AWS KMS

Answer

AWS CloudHSM

Question 46

What is the primary purpose of AWS Inspector?

Accepted Answer

To assess the security of applications deployed on AWS

Answer

To provide firewall protection for networks

Answer

To manage encryption keys

Answer

To store application secrets securely

Question 47

Which AWS service is specifically designed to protect applications from DDoS attacks?

Accepted Answer

AWS Shield

Answer

AWS WAF

Answer

AWS GuardDuty

Answer

AWS Firewall Manager

Question 48

Which AWS service allows you to securely store and manage access to secrets like API keys and database credentials?

Accepted Answer

AWS Secrets Manager

Answer

AWS Config

Answer

AWS CloudHSM

Answer

AWS Parameter Store

Question 49

What capability does AWS CloudHSM provide?

Accepted Answer

Hardware-based key management for cryptographic operations

Answer

Security alerts aggregation

Answer

Automated compliance auditing

Answer

Network traffic monitoring

Question 50

Which AWS service is used to assess the compliance of your AWS resources against best practices and governance standards?

Accepted Answer

AWS Config

Answer

AWS Security Hub

Answer

AWS Inspector

Answer

AWS GuardDuty

Question 51

What feature does AWS VPC Flow Logs provide?

Accepted Answer

Logging of network traffic in and out of your VPC

Answer

Configuration of security groups

Answer

Monitoring of S3 storage usage

Answer

Management of IAM roles

Question 52

Which AWS service can help detect unexpected behavior in your AWS environment by monitoring for malicious activity and unauthorized behavior?

Accepted Answer

AWS GuardDuty

Answer

AWS WAF

Answer

AWS IAM

Answer

AWS CloudTrail

Question 53

What is the primary purpose of AWS Application Firewall (WAF)?

Accepted Answer

To protect web applications from common web exploits

Answer

To encrypt data at rest

Answer

To automate security compliance checks

Answer

To manage virtual private networks

Question 54

Which service allows you to centrally manage security policies across your AWS accounts?

Accepted Answer

AWS Firewall Manager

Answer

AWS Shield

Answer

AWS Security Hub

Answer

AWS Config

Question 55

A global enterprise operates multiple AWS accounts segmented by business units using AWS Organizations. Each account produces operational events (EC2 state changes, API failures, security findings) that must be routed in near real time to a centralized monitoring account. The solution must:

Support schema evolution

Minimize operational overhead

Allow selective event routing based on event content

Scale to millions of events per day

Which solution best meets these requirements?

Accepted Answer

Use Amazon EventBridge with cross-account event bus permissions and content-based rules

Answer

Stream CloudTrail logs to Amazon Kinesis Data Firehose and process them with Lambda

Answer

Publish custom application events directly to Amazon SQS FIFO queues in the monitoring account

Answer

Configure Amazon SNS topics in each account and subscribe a centralized SQS queue in the monitoring account

Question 56

Which architecture is MOST appropriate for a fintech company that runs microservices in containers with unpredictable traffic spikes, requiring no cluster capacity management, per-task IAM permissions, tight VPC network integration, and pay-per-use pricing?

Accepted Answer

Amazon ECS using AWS Fargate launch type

Answer

Amazon ECS on EC2 with Auto Scaling Groups

Answer

Amazon EC2 Spot Instances with Docker Swarm

Answer

Amazon EKS with self-managed node groups

Question 57

What is the BEST AWS service for a SaaS provider that needs to expose REST APIs with independent authentication, different rate limits, usage-based billing, and automatic blocking of customers who exceed limits?

Accepted Answer

Amazon API Gateway with usage plans and API keys

Answer

Amazon ALB with WAF rate-based rules

Answer

Amazon Cognito with Lambda throttling logic

Answer

Amazon CloudFront with Lambda@Edge validation

Question 58

For an insurance company that needs a solution to process claim requests through multiple steps with explicit handling of retries and failures, automatic scaling, visual execution state tracking, and integration with Lambda and ECS tasks, which solution is BEST?

Accepted Answer

AWS Step Functions Standard Workflows

Answer

Amazon EventBridge with multiple rules

Answer

Lambda functions triggered sequentially via SNS

Answer

AWS SWF with workflow deciders

Question 59

Which setup is MOST appropriate for a Lambda function that needs to access a private Amazon RDS database within a VPC, while adhering to security requirements of no public IPs, least privilege access, and minimal cold start latency?

Accepted Answer

Place Lambda in private subnets and attach an execution role

Answer

Place Lambda in a public subnet with a NAT Gateway

Answer

Place Lambda in private subnets with IAM user credentials

Answer

Place Lambda outside the VPC and whitelist the IP

Question 60

What managed AWS service should a manufacturing company choose to support legacy applications using ActiveMQ protocol with minimal code changes, standard messaging protocol support, high availability, and no need for refactoring to cloud-native services?

Accepted Answer

Amazon MQ with ActiveMQ

Answer

Amazon EventBridge custom bus

Answer

Amazon SQS with long polling

Answer

Amazon SNS with FIFO topics

Question 61

Which AWS service BEST supports a mobile application that requires single endpoint access, fine-grained data fetching, real-time updates, and offline synchronization?

Accepted Answer

AWS AppSync with DynamoDB

Answer

Amazon ALB with WebSocket support

Answer

AWS Lambda with custom GraphQL server

Answer

Amazon API Gateway with REST APIs

Question 62

In an order processing system that needs to deliver events to multiple downstream systems while allowing independent processing, retrying failed consumers, and preventing message loss, which architecture is MOST reliable?

Accepted Answer

SNS topic with multiple SQS subscriptions

Answer

Kinesis Data Streams with enhanced fan-out

Answer

EventBridge rule with multiple Lambda targets

Answer

Single SQS queue with multiple consumers

Question 63

Which tool is MOST suitable for a development team looking to deploy a serverless application comprised of Lambda, API Gateway, and DynamoDB using infrastructure as code, while desiring local testing capability, minimal YAML overhead, and easy packaging and deployments?

Accepted Answer

AWS SAM

Answer

AWS CDK

Answer

AWS CloudFormation

Answer

Terraform

Question 64

Which AWS service BEST meets the requirements of a payment processing system that demands strict ordering, exactly-once message processing, and deduplication?

Accepted Answer

Amazon SQS FIFO queue

Answer

Amazon SNS standard topic

Answer

Amazon Kinesis Data Firehose

Answer

Amazon SQS Standard queue

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