Selenium Cloud Computing & Services 2

Question 1

Which cloud service model gives Selenium test teams the most control over the underlying OS and runtime environment?

Accepted Answer

IaaS

Answer

IaaS (Infrastructure as a Service) provides virtual machines where teams can install any OS, browser version, and Selenium runtime they choose.

Question 2

When running Selenium Grid on Kubernetes, what Kubernetes object is used to ensure a fixed number of node replicas are always running?

Accepted Answer

Deployment

Answer

A Deployment controller maintains the desired replica count for Selenium Grid node pods and restarts any that fail.

Question 3

Which AWS service allows you to store Selenium test reports and screenshots as objects and access them via a URL?

Accepted Answer

AWS S3

Answer

AWS S3 (Simple Storage Service) stores arbitrary objects like HTML reports and PNG screenshots and can expose them via pre-signed or public URLs.

Question 4

What is a primary advantage of using ephemeral cloud VMs for Selenium tests compared to permanent on-premise machines?

Accepted Answer

Clean browser state for every test run

Answer

Ephemeral VMs are created fresh per run, eliminating leftover cookies, cache, and extensions that can cause test flakiness.

Question 5

In a cloud-based Selenium setup, what does 'auto-scaling' primarily help with?

Accepted Answer

Dynamically adding browser nodes based on test queue demand

Answer

Auto-scaling adds or removes Grid nodes in response to the number of queued sessions, reducing cost during idle periods and wait times during peaks.

(Selenium) Selenium Testing Certification Practice Test