CV0-004 Deployment Practice Test 8 — 15 Questions

Question 1

An organization uses AWS CloudFormation to deploy resources across multiple AWS accounts. They need to manage a common set of resources in several accounts from a single template. Which CloudFormation feature should they use?

Accepted Answer

StackSets. StackSets allow deploying stacks across multiple accounts and regions. Change sets show changes before execution; Drift Detection detects configuration drift; Nested stacks are for reusability within a single account.

Answer

Change sets

Answer

Nested stacks

Answer

Drift Detection

Question 2

During a CI/CD pipeline for a web application, the team wants to reduce risk by deploying a new version to a small percentage of users initially, monitoring for errors, and automatically rolling back if issues are detected. Which deployment strategy should they implement?

Accepted Answer

Canary deployment. Canary deployment releases to a subset of users and includes monitoring and automatic rollback. Blue/green uses two full environments and switch traffic; rolling updates gradually replace instances; in-place updates replace instances without traffic shifting.

Answer

Blue/green deployment

Answer

Rolling deployment

Answer

In-place deployment

Question 3

A company is migrating to the cloud and needs to transfer 200 TB of data from an on-premises data center to GCP. The network bandwidth is limited, so they want to use a physical appliance for offline transfer. Which GCP service should they use?

Accepted Answer

Transfer Appliance. Storage Transfer Service is for online transfers; Transfer Appliance is Google's offline physical device; DataSync is AWS; Azure Data Box is Microsoft's offline device.

Answer

Azure Data Box

Answer

AWS DataSync

Answer

Storage Transfer Service

Question 4

A cloud engineer is writing an Ansible playbook to provision virtual machines in Azure. The playbook includes a task that uses the 'azure_rm_virtualmachine' module. Which of the following best describes Ansible's architecture in this scenario?

Accepted Answer

Ansible is agentless and uses SSH or WinRM to connect to target machines.. Ansible is agentless and connects via SSH or WinRM. It is not agent-based; it does not require Python on the control node only; it is not a managed service.

Answer

Ansible uses agents installed on target VMs to execute modules.

Answer

Ansible is a managed service in Azure that runs playbooks automatically.

Answer

Ansible requires Python to be installed only on the control node.

Question 5

A company uses Azure DevOps to deploy a critical application. They need to implement a deployment strategy that ensures zero downtime by directing all traffic to the new environment after validation, while keeping the old environment as a fallback. Which deployment strategy should be configured in the Azure Pipelines release pipeline?

Accepted Answer

Blue/green deployment. Blue/green deployment is the correct strategy because it maintains two identical environments (blue and green) and switches the router or load balancer to direct all traffic to the new (green) environment only after validation is complete. The old (blue) environment remains untouched and can serve as an immediate fallback if issues arise, ensuring zero downtime during the cutover.

Answer

Canary deployment

Answer

In-place deployment

Answer

Rolling deployment

Question 6

A cloud engineer is writing a Terraform configuration to provision an AWS EC2 instance. They need to pass the AMI ID as a variable to make the configuration reusable. Which Terraform block should be used to define the variable?

Accepted Answer

variable. Variables are defined using the 'variable' block. 'resource' declares resources; 'provider' configures providers; 'output' defines outputs.

Answer

output

Answer

provider

Answer

resource

Question 7

An organization is migrating a MySQL database to Amazon RDS using AWS DMS. They want to minimize downtime by using ongoing replication from the source. Which DMS feature should they enable to capture changes as they occur on the source database?

Accepted Answer

Change Data Capture (CDC). Change Data Capture (CDC) captures ongoing changes. Full load transfers existing data; schema conversion converts schemas; validation checks data integrity.

Answer

Data validation

Answer

Full load

Answer

Schema conversion

Question 8

A company uses GitHub Actions to build and deploy a microservices application. They want to automate the deployment to a Kubernetes cluster only when changes are pushed to the main branch. Which GitHub Actions event trigger should be used in the workflow?

Accepted Answer

on: push: branches: [ main ]. The 'push' event with branch filters triggers on pushes to main. 'pull_request' triggers on PR events; 'schedule' triggers on a cron; 'workflow_dispatch' triggers manually.

Answer

on: workflow_dispatch:

Answer

on: schedule: - cron: '0 0 * * *'

Answer

on: pull_request: branches: [ main ]

Question 9

A cloud engineer is deploying a serverless function using AWS Lambda. The function needs to process messages from an SQS queue. Which event source should be configured to trigger the Lambda function?

Accepted Answer

Amazon SQS. Lambda can be triggered by SQS, S3, API Gateway, etc. For SQS, the trigger is SQS. S3 triggers on object events; API Gateway for HTTP; EventBridge for events.

Answer

Amazon S3

Answer

Amazon API Gateway

Answer

Amazon EventBridge

Question 10

A cloud architect is designing a CI/CD pipeline for a containerized application. The pipeline must include stages for building, testing, and deploying to a Kubernetes cluster. Which TWO of the following are common stages in a CI/CD pipeline for containerized applications? (Select TWO.)

Accepted Answer

Build. Source, build, test, deploy, and verify are common stages. Monitoring and alerting are not pipeline stages; capacity planning is not a stage.

Answer

Monitoring

Answer

Alerting

Answer

Capacity planning

Question 11

A company needs to migrate a 100 TB on-premises file server to AWS S3. The migration must be completed within two weeks. The network bandwidth is limited to 1 Gbps. Which TWO services should be combined to accomplish this migration within the timeframe? (Select TWO.)

Accepted Answer

AWS Snowball Edge. Option D (AWS Snowball Edge) is correct because it provides a physical storage device that can transfer 100 TB of data offline, bypassing the 1 Gbps bandwidth limitation. With 1 Gbps, the theoretical maximum transfer over the network would be approximately 10.8 TB per day, requiring over 9 days for 100 TB under ideal conditions, but real-world factors like protocol overhead and contention make two weeks infeasible. Snowball Edge can handle up to 80 TB per device, so two devices can complete the migration well within the two-week window.

Answer

AWS Server Migration Service (SMS)

Answer

AWS DataSync

Answer

AWS Direct Connect

Answer

Amazon S3 Transfer Acceleration

Question 12

A company is deploying a web application using Azure Kubernetes Service (AKS). The deployment manifest includes a probe to check if the application is ready to serve traffic. Which TWO types of probes can be used to determine pod health in Kubernetes? (Select TWO.)

Accepted Answer

Liveness probe. Readiness and liveness probes are used for health checking. Startup probes are also available but less common. ConfigMap and Secret are not probes.

Answer

Secret probe

Answer

Startup probe

Answer

ConfigMap probe

Question 13

A cloud engineer is deploying a web application to a Kubernetes cluster. The application requires zero downtime during updates, and the team wants to test new versions with a small percentage of users before full rollout. Which deployment strategy should the engineer use?

Accepted Answer

Canary deployment. A canary deployment routes a small percentage of traffic to the new version, allowing monitoring and automatic rollback if issues arise, meeting the requirements.

Answer

Rolling deployment

Answer

Blue/green deployment

Answer

Immutable deployment

Question 14

A cloud architect is designing a CI/CD pipeline for a microservices application deployed on AWS. The pipeline should include stages for source code checkout, building, testing, and deploying to production. Which TWO of the following tools are suitable for implementing this pipeline?

Accepted Answer

GitHub Actions. GitHub Actions and AWS CodePipeline are both CI/CD services that can manage the entire pipeline lifecycle. Terraform and CloudFormation are IaC tools, and Docker is a containerization tool.

Answer

Docker

Answer

CloudFormation

Answer

Terraform

Question 15

A cloud administrator is planning to migrate a large on-premises database (several TB) to Amazon RDS with minimal downtime. Which TWO AWS services should be considered for this migration?

Accepted Answer

AWS Database Migration Service. AWS Database Migration Service (DMS) can perform online migrations with minimal downtime using CDC. Schema Conversion Tool helps convert database schema if needed.

Answer

AWS DataSync

Answer

AWS Snowball

Answer

S3 Transfer Acceleration