Troubleshooting

Systematic troubleshooting methodology for hardware, storage, OS/software, network, and security problems.

5 minutes 5 Questions

Troubleshooting is a critical skill covered extensively in the CompTIA Server+ (SK0-005) certification, focusing on systematically identifying, diagnosing, and resolving hardware, software, and network issues in server environments. The exam dedicates a significant portion to troubleshooting method…

Concepts covered
Root Cause Analysis and DocumentationTroubleshooting Common Hardware FailuresTroubleshooting Storage ProblemsTroubleshooting Network Connectivity IssuesTroubleshooting Security ProblemsServer Diagnostic Tools and TechniquesTroubleshooting Theory and MethodologyTroubleshooting OS and Software Problems
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Server+ - Troubleshooting Example Questions

Test your knowledge of Troubleshooting

Question 1

Which command line option is used with the netstat utility to display all active connections and listening ports on a server?

Correct Answer: netstat -a displays all connections

The netstat command line utility uses the -a switch to explicitly display both all active network connections and the specific listening ports operating on a server.
The other available options serve different administrative purposes. The -n switch displays network addresses and port numbers in a strict numerical format rather than resolving hostnames. The -r switch is utilized to display the current IP routing table information for the system. Finally, the -o switch displays the active process ID associated with each active network connection.
The key concept tested is utilizing standard network administration command line utilities to perform essential server troubleshooting and connectivity verification.

Question 2

Which of the following best describes the physical manifestation of a failing capacitor on a server motherboard?

Correct Answer: The component features a bulging top or leaked electrolytic fluid.

The correct answer is right because a failing electrolytic capacitor typically builds up internal gas pressure that causes its casing to bulge at the top or leak brownish fluid.

Scorch marks across connecting pins indicate an electrical short rather than a specific capacitor issue. A flattened casing spreading over the board does not accurately describe the structural failure of a cylindrical capacitor. Severed mounting legs suggest physical trauma or mishandling rather than internal degradation.

The key concept tested is identifying physical hardware failures on server motherboards.

Question 3

A technician is troubleshooting a Windows server that fails to boot after a recent software installation. The system displays a blue screen error each time it starts. The technician needs to determine whether the newly installed software caused the issue. What is the best approach to resolve this problem?

Correct Answer: Boot into Safe Mode and use System Restore to revert to a restore point created before the installation

Booting into Safe Mode and using System Restore to revert to a point before the software installation is the best approach because it directly addresses the suspected cause by undoing the recent change while loading only minimal drivers, allowing the system to start successfully.

Running disk check and memory diagnostics targets hardware issues, not a software-related problem as described. Rebuilding the Boot Configuration Data addresses boot loader corruption, not issues caused by a recent software installation. Updating device drivers is unrelated to the problem since the issue began after a software installation, not a driver change.

Key concept tested: using Safe Mode and System Restore for troubleshooting failed boots caused by recent software changes.

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