You wrote this command to start a Selenium Grid Hub: java -jar selenium-server.jar hub --port 4444 But when you run tests, they fail to connect. What is the most likely error in this setup?

medium📝 Debug Q6 of 15

Selenium Python - Selenium Grid

AYou must specify the browser type in the command

BPort 4444 is reserved and cannot be used

CHub requires a configuration file to start

DThe correct command is 'java -jar selenium-server.jar standalone' for Grid 4+

Step-by-Step Solution

Solution:

Step 1: Recognize Selenium Grid version changes
In Selenium Grid 4+, the standalone server command is used instead of 'hub'.
Step 2: Identify command mismatch
Using 'hub' is deprecated; tests fail to connect because the Hub is not properly started.
Final Answer:
The correct command is 'java -jar selenium-server.jar standalone' for Grid 4+ -> Option D
Quick Check:
Grid 4+ uses 'standalone' command [OK]

Quick Trick: Use 'standalone' command for Selenium Grid 4+ [OK]

Common Mistakes:

Using old 'hub' command in Grid 4+
Assuming port 4444 is blocked
Thinking browser type is needed at Hub start

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You wrote this command to start a Selenium Grid Hub: java -jar selenium-server.jar hub --port 4444 But when you run tests, they fail to connect. What is the most likely error in this setup?

Step 1: Recognize Selenium Grid version changes

Step 2: Identify command mismatch

Final Answer:

Quick Check:

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