Why Grid enables parallel execution in Selenium Python - Quick Recap

Recall & Review

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What is Selenium Grid?

Selenium Grid is a tool that allows running tests on multiple machines and browsers at the same time.

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How does Selenium Grid enable parallel execution?

It distributes tests across different machines (nodes) so tests run at the same time instead of one after another.

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What is the role of the Hub in Selenium Grid?

The Hub acts like a traffic controller. It receives test requests and sends them to available nodes to run tests.

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Why is parallel execution useful in testing?

It saves time by running many tests at once, helping find bugs faster and speeding up the release process.

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What is a Node in Selenium Grid?

A Node is a machine registered to the Hub that runs the tests. Multiple nodes allow many tests to run in parallel.

What does Selenium Grid use to run tests in parallel?

A Multiple nodes connected to a hub

B A single machine running tests one by one

C Only one browser at a time

D Manual test execution

Selenium Grid uses multiple nodes connected to a hub to run tests simultaneously.

What is the main purpose of the Hub in Selenium Grid?

A To store test results

B To write test scripts

C To run tests locally

D To control and distribute test execution to nodes

The Hub controls and distributes tests to different nodes for parallel execution.

Why is parallel execution important in automated testing?

A It slows down testing

B It reduces the number of tests

C It speeds up test execution by running tests at the same time

D It makes tests manual

Parallel execution speeds up testing by running multiple tests simultaneously.

In Selenium Grid, what is a Node?

A A test script

B A machine that runs tests

C A browser plugin

D A test report

A Node is a machine registered to the Hub that runs tests.

Which of the following is NOT a benefit of using Selenium Grid?

A Manual test execution

B Testing on multiple browsers and machines

C Centralized control of test distribution

D Running tests faster by parallel execution

Selenium Grid automates tests; manual execution is not a benefit.

Explain how Selenium Grid enables parallel execution of tests.

Think about how the Hub and Nodes work together.

Describe the roles of Hub and Node in Selenium Grid.

Focus on the responsibilities of each component.