Setting packageForLinux to Force Kudu-Based ZIP Deployment
You have a multi-stage YAML pipeline that deploys to a Linux-based Azure App Service. The pipeline uses a 'Deploy to Azure App Service' task. You need to ensure that the deployment uses the Kudu REST API with ZIP deployment. Which value should you set for the 'packageForLinux' task input?
Quick Answer
Setting the 'packageForLinux' input to true is what forces the 'Deploy to Azure App Service' task to use the Kudu REST API with ZIP deployment — this matters because Linux-based App Service doesn't support WebDeploy/MSDeploy at all, so ZIP deployment through Kudu is the only supported path for that target.
⚠ Common exam trap
Many exam-takers confuse the 'packageForLinux' input with a generic 'enableKudu' switch, not realizing that Kudu is the underlying mechanism for ZIP deployment on Linux and that this specific input is required to activate it.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set 'packageForLinux' to true
The 'packageForLinux' input must be set to 'true' to force the 'Deploy to Azure App Service' task to use the Kudu REST API with ZIP deployment when targeting a Linux-based Azure App Service. This is required because Linux App Services do not support WebDeploy (MSDeploy) and rely on the Kudu endpoint for ZIP-based deployments.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set 'enableCustomDeployment' to true
Why it's wrong here
This enables custom deployment scripts, not specifically ZIP deployment via Kudu for Linux.
- ✗
Set 'useWebDeploy' to false
Why it's wrong here
This disables Web Deploy, but does not enable ZIP deployment for Linux.
- ✗
Set 'enableKuduDeploy' to true
Why it's wrong here
There is no such input 'enableKuduDeploy' in the Azure Web App task.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-400 exam frequently reuses these exact scenarios with slightly different constraints.
✓Set 'packageForLinux' to trueCorrect answer▾
✗Set 'enableCustomDeployment' to trueWrong answer — click to see why▾
Why this is wrong here
This enables custom deployment scripts, not specifically ZIP deployment via Kudu for Linux.
✗Set 'useWebDeploy' to falseWrong answer — click to see why▾
Why this is wrong here
This disables Web Deploy, but does not enable ZIP deployment for Linux.
✗Set 'enableKuduDeploy' to trueWrong answer — click to see why▾
Why this is wrong here
There is no such input 'enableKuduDeploy' in the Azure Web App task.
Analysis generated from the official AZ-400blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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Introduction to DevOps and Azure DevOps
Key term
Stage
A stage is a discrete phase in a software development or deployment pipeline where code is built, tested, integrated, or released in a controlled environment.
Key term
Pipeline
A pipeline is an automated series of steps that takes code from development to production, ensuring quality and speed.
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This AZ-400 question is part of Courseiva's 823-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more way this is tested on AZ-400
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your team uses a multi-stage YAML pipeline to build and deploy a .NET Core application. The build stage runs successfully, but the deployment to a Linux web app fails with an error indicating that the Kudu service cannot start because the startup command is missing. What is the most likely cause?
medium- ✓ A.The pipeline is missing the 'AzureWebApp@1' task with a 'StartupCommand' parameter.
- B.The service connection lacks permission to access the web app.
- C.The web app is configured with a Windows runtime stack.
- D.The build output does not include the web.config file.
Why A: The Kudu service on Linux web apps requires a startup command to launch the .NET Core application. The 'AzureWebApp@1' task's 'StartupCommand' parameter specifies this command (e.g., 'dotnet myapp.dll'). Without it, Kudu cannot start the process, causing the deployment failure.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AZ-400 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-400 exam.