Domain 4: Troubleshooting & Diagnostics Course

This course includes coverage of the fourth domain of the test objectives: Troubleshooting & Diagnostics. The course includes lessons that cover some troubleshooting system problems, system performance, user issues, hardware and application troubleshooting.

1 hour, 22 minutes

Course description

This lessons in this course cover concepts and commands related to common performance issues with networking, such as dealing with delays, drops and throughput issues. Additionally, lessons include common troubleshooting tools to analyze and solve problems related to process execution and system performance, user access, file and directory access and security configurations.


Analyze and troubleshoot application and hardware

Video - 00:11:00

This video covers common issues related to storage, software versions and hardware.
Analyze and troubleshoot user issues

Video - 00:11:00

This video covers common user issues and how to identify and troubleshoot them.
Analyze and optimize system performance

Video - 00:11:00

This video discusses working with system processes to identify problems and remediate performance issues.
Analyze and remediate system problems

Video - 00:49:00

This video provides examples of common issues, as well as how to use various commands to identify, troubleshoot and fix those problems.

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Associated NICE Work Roles

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