Selenium DevOps & Deployment 3

Question 1

Which Selenium Grid 4 topology mode runs the Hub and Node as a single process on one machine?

Accepted Answer

Standalone Mode

Answer

Standalone Mode combines all Grid components into a single process, ideal for development or small-scale CI environments.

Question 2

When integrating Selenium with Docker Compose, what network setting ensures containers can communicate using service names as hostnames?

Accepted Answer

Defining a shared custom network bridge

Answer

Docker Compose automatically creates a default bridge network where services can resolve each other by service name as hostname.

Question 3

In a Jenkins declarative pipeline, which stage configuration runs Selenium tests only when merging to the main branch?

Accepted Answer

when { branch 'main' }

Answer

The `when { branch 'main' }` directive in declarative pipelines conditionally executes a stage based on the current branch name.

Question 4

What is the purpose of the '--no-sandbox' Chrome argument often used in Dockerized Selenium tests?

Accepted Answer

Disables Chrome's sandbox security for root user containers

Answer

Chrome's sandbox requires kernel features unavailable to root users in containers; --no-sandbox disables it to allow Chrome to start.

Question 5

Which AWS service is commonly used to run distributed Selenium tests in the cloud without managing infrastructure?

Accepted Answer

AWS Device Farm

Answer

AWS Device Farm provides managed browser and mobile testing infrastructure, supporting Selenium WebDriver tests without server management.

(Selenium) Selenium Testing Certification Practice Test