50 Example questions with answers about AWS services
An excellent resource for evaluating your knowledge before mock exams, is simplecloudquestions.com. This website specializes in offering comprehensive question sets and detailed answers for various AWS certifications, including the AWS DevOps Certification, AWS SysOps Certification, AWS Solution Architect Certification.
Q: What are the different types of APIs supported by AWS API Gateway?
A: REST APIs, WebSocket APIs, HTTP/S APIs
Q: What is canary deployment in API GW stage?
A: Canary deployment in API Gateway stage allows routing a small percentage of traffic to the canary target, in order to test if it is working properly.
Q: What is cache-miss in API GW?
A: A cache-miss in API GW occurs when the requested data is not available in cache. In this case, the integration will be executed and the content will be returned to the user. Additionally, the content will be stored in cache for the Time-To-Live (TTL) duration.
Q: What are the three types of scaling policies available in ASG?
A: 1. Target tracking, 2. Step scaling, 3. Simple scaling
Q: During the health check grace period, no health checks are performed. True/False
A: TRUE
Q: Which AWS service uses schema-on-read on S3 and has SQL support?
A: Athena
Q: What are the two available engines for AWS Aurora?
A: 1. MySQL, 2. PostgreSQL
Q: What is the mandatory part of an AWS SAM template?
A: The mandatory property of an AWS SAM template is the Transform property.
Q: What is the WORM model in AWS Backup?
A: The WORM model in AWS Backup refers to the write-once-read-many setting for backup to protect from deletion or changes.
Q: What is AWS CloudFormation StackSets?
A: It is a service that enables you to create, update, or delete stacks across multiple accounts and regions with a single CloudFormation template.
Q: What is AWS CloudFormation Resource Signal?
A: It is a feature that allows you to signal the success or failure of a resource creation or update operation.
Q: What is !ImportValue in an AWS CloudFormation template?
A: Returns the value of an output that has been exported by another stack. You would typically use this function to create cross-stack references.
Q: What is an Origin Access Identity (OAI) in AWS CloudFront?
A: An origin access identity (OAI) is a virtual user that is utilized to restrict access to your origin.
Q: What are the use cases for using CloudHSM?
A: 1. Offloading SSL/TLS processing, 2. Protecting private keys for CAs, 3. Enabling TDE for Oracle DBs.
Q: What is the maximal number of AWS CloudTrail trails allowed per region?
A: 5
Q: What is the “post_build” phase in the buildspec.yml file in AWS CodeBuild?
A: It is the phase responsible for pushing Docker images and sending notifications after a build is completed.
Q: Can I limit what users can merge pull requests into specific branches?
A: Yes, this can be achieved through an IAM inline policy.
Q: What version will be deployed to an instance that has been added to an ASG during deployment in AWS CodeDeploy?
A: The last successfully deployed version, not the version that is currently being deployed.
Q: How does blue/green deployment reduce downtime?
A: The version of the application is tested before being put into production. By enabling a gradual shift of traffic from the old version to the new version, we can prevent errors in production via quick rollback (automatic or manual).
Q: What is the purpose of the two target groups in ECS service deployment using AWS CodeDeploy?
A: 1. Original task set, 2. Replacement task set
Q: What is a Reviewer in AWS CodeGuru?
A: A Reviewer in AWS CodeGuru is responsible for automating code reviews for pull requests and identifying critical issues and security vulnerabilities.
Q: What is a stage in AWS CodePipeline?
A: A stage in AWS CodePipeline is a phase of the release process, such as building, testing, or deploying your code.
Q: Can I use CodeGuru as a build action provider in AWS CodePipeline?
A: No
Q: Which resources are evaluated in proactive evaluation mode in AWS Config?
A: Resources are evaluated before they are deployed.
Q: What is a Conformance pack in AWS Config?
A: A Conformance pack in AWS Config is a collection of AWS Config rules and remediation actions that can be easily deployed as a single entity in an account+region across an AWS Organizations organization.
Q: What is the lowest time granularity for high-resolution custom metrics in AWS CloudWatch?
A: 1 second
Q: Can I create a CloudWatch billing alarm in eu-west-1?
A: No, you can only create it in us-east-1.
Q: What is a composite alarm in CloudWatch?
A: A composite alarm in CloudWatch is a mechanism to monitor the state of other CloudWatch alarms and use expressions to combine them.
Q: Can I manually set a CloudWatch alarm to the alarm state?
A: Yes
Q: What types of databases can AWS DMS migrate?
A: AWS DMS can migrate Amazon RDS, Aurora, Oracle, Microsoft SQL Server, PostgreSQL, MySQL, MariaDB, and MongoDB databases.
Q: What is a hot standby (hot site) architecture in DR?
A: A hot standby (hot site) architecture in DR refers to a strategy where a complete copy of the primary infrastructure is continuously running in a secondary AWS Region.
Q: What must happen to the AWS infrastructure so that Lambda in public mode will not work?
A: Region failure
Q: When should I use on-demand capacity in DynamoDB?
A: On-demand capacity in DynamoDB is recommended when dealing with unknown or unpredictable load, as it offers low administrative overheads in scaling resources. However, it can be expensive compared to provisioned capacity.
Q: For which two scenarios is DAX not an ideal solution?
A: 1. Applications requiring strongly consistent reads, 2. Heavy write operations
Q: Is point-in-time recovery enabled by default in DynamoDB?
A: No
Q: What is Amazon EBS Elastic Volumes?
A: EBS Elastic Volumes allow for dynamic size and performance adjustments of EBS volumes without downtime, as long as both the EBS volume and EC2 instance support it.
Q: What is an AWS Launch Template?
A: It is a newer, more flexible way to define the launch settings of an EC2 instance launched in an Auto Scaling Group (ASG).
Q: What is a Spot Instance?
A: A Spot Instance is purchased at a lower price, but it may be interrupted if the spot price rises above the bid price.
Q: What is an ECR repository policy?
A: An ECR repository policy is a JSON document that specifies permissions for users or roles to access a specific repository in ECR.
Q: What is the ECS agent?
A: The Amazon ECS agent allows EC2 instances to connect to your cluster.
Q: Can I disable the “scale-in” cooldown period in ECS?
A: Yes, tasks are not terminated.
Q: Is the mount target of an AWS EFS filesystem in a VPC an IP address? True/False
A: TRUE
Q: What is a worker node in EKS?
A: A worker node is a compute instance that runs containerized applications (pods) within a Kubernetes cluster.
Q: What is AWS ALB Slow Start?
A: Targets warm up during a specified ramp-up period before accepting their fair share of requests
Q: What is the relation between Amazon EventBridge and CloudWatch Events?
A: EventBridge extends the functionality of CloudWatch Events and uses the same API, endpoint, and underlying infrastructure.
Q: What are the two main types of FSX?
A: 1. FSX for Windows, 2. FSX for Lustre. Other types include FSX-NetApp and FSX-OpenZFS.
Q: What is the AWS Health API?
A: The AWS Health API is a set of APIs designed to provide programmable access to AWS Health events and notifications, which are available in paid AWS plans.
Q: What types of images can I create with Image Builder?
A: 1. AMI for EC2, 2. Docker containers
Q: What are the four key components of AWS Kinesis Data Streams?
A: The four key components of AWS Kinesis Data Streams are: 1. Streams, 2. Shards, 3. Producers, and 4. Consumers.
Q: What are the two types of CMK (Customer Master Key) that can be used in AWS KMS?
A: There are two types: 1. Customer-created, 2. Customer-imported
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