Web Development Deployment 3

Question 1

What is a rolling deployment?

Accepted Answer

Updating instances incrementally, a few at a time, while keeping others live

Answer

Rolling deployments replace old instances with new ones gradually, maintaining availability throughout the process.

Question 2

What environment variable naming convention is widely used to distinguish deployment targets?

Accepted Answer

NODE_ENV=production

Answer

NODE_ENV=production is the de facto standard used by Node.js frameworks and bundlers to enable production optimizations.

Question 3

Which tool is commonly used for container orchestration at scale?

Accepted Answer

Kubernetes

Answer

Kubernetes automates deployment, scaling, and management of containerized applications across clusters of machines.

Question 4

What does a .dockerignore file do?

Accepted Answer

Excludes files and directories from the Docker build context

Answer

.dockerignore excludes paths from being sent to the Docker daemon during build, reducing image size and build time.

Question 5

In GitHub Actions, what triggers a workflow defined with `on: push: branches: [main]`?

Accepted Answer

Any commit pushed directly to the main branch

Answer

This configuration runs the workflow whenever commits are pushed to the main branch specifically.

Web Development Practice Test