Selenium System Architecture & Design 2

Question 1

In a Selenium Grid 4 architecture, what is the primary role of the Distributor node?

Accepted Answer

Assign test sessions to available nodes based on capabilities

Answer

The Distributor receives session requests from the Router and assigns them to the appropriate Node that matches the requested capabilities.

Question 2

Which design pattern is most commonly used to represent web pages as objects with methods in a Selenium framework?

Accepted Answer

Page Object Model (POM)

Answer

The Page Object Model (POM) encapsulates web page elements and interactions into dedicated classes, improving maintainability and reducing code duplication.

Question 3

When designing a Selenium framework for parallel execution, what is the main reason to use ThreadLocal<WebDriver>?

Accepted Answer

To ensure each thread has its own isolated WebDriver instance

Answer

ThreadLocal<WebDriver> provides each thread with its own WebDriver instance, preventing interference between concurrently executing tests.

Question 4

In a layered Selenium test architecture, which layer is responsible for holding business logic and test flow?

Accepted Answer

Test Layer

Answer

The Test Layer contains test methods that orchestrate business flows by calling Page Object methods, keeping test intent separate from implementation details.

Question 5

What is the architectural benefit of using a Base Page class in a Page Object Model framework?

Accepted Answer

It centralizes common WebDriver interactions and wait logic for all page objects to inherit

Answer

A Base Page class provides shared methods like element clicking, typing, and waiting that all page objects inherit, eliminating code duplication.

(Selenium) Selenium Testing Certification Practice Test

(Selenium) Selenium Testing Certification Practice Test

Selenium System Architecture & Design 2