You have configured Selenium Grid but notice that tests are not running concurrently as expected. Which configuration mistake could cause this behavior?

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Selenium Python - Selenium Grid

AThe browser versions on nodes are outdated

BThe test scripts are written in different programming languages

CThe hub is running on a machine with high CPU usage

DOnly one node is registered with the hub, limiting parallel sessions

Step-by-Step Solution

Solution:

Step 1: Check Node Registration
If only one node is registered, the hub can only distribute tests to that single node, limiting parallel execution.
Step 2: Understand Parallel Capacity
Each node has a limited number of browser slots; with only one node, the total parallel sessions are limited to that node's slots.
Final Answer:
Only one node is registered with the hub, limiting parallel sessions -> Option D
Quick Check:
Verify node count and slots on the hub [OK]

Quick Trick: Multiple nodes needed for parallel tests [OK]

Common Mistakes:

Assuming different languages affect parallelism
Blaming CPU usage without checking node count
Thinking outdated browsers prevent parallel execution

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More Selenium Python Quizzes

You have configured Selenium Grid but notice that tests are not running concurrently as expected. Which configuration mistake could cause this behavior?

Step 1: Check Node Registration

Step 2: Understand Parallel Capacity

Final Answer:

Quick Check:

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