SAC System Maintenance and Troubleshooting 3

Question 1

A technician suspects a memory module is causing random system crashes. Which Windows tool can run a comprehensive RAM test?

Accepted Answer

Windows Memory Diagnostic

Answer

Windows Memory Diagnostic (mdsched.exe) tests RAM for errors and can be scheduled to run on the next reboot.

Question 2

What is the primary purpose of a system baseline in IT administration?

Accepted Answer

To establish normal performance metrics for comparison during troubleshooting

Answer

A system baseline captures normal performance metrics so administrators can identify deviations that indicate a problem.

Question 3

A Linux server cannot reach external hosts but can ping its own loopback address (127.0.0.1). What should you check next?

Accepted Answer

The default gateway and network interface configuration

Answer

If loopback works but external connectivity fails, the problem is likely in the default gateway or network interface configuration.

Question 4

Which SMART attribute value reaching 0 on a hard drive most directly warns of imminent failure?

Accepted Answer

Reallocated Sectors Count and Reallocated Event Count

Answer

Reallocated Sectors Count and Reallocated Event Count both increasing (or their 'worst' values hitting 0) are the strongest SMART indicators of imminent drive failure.

Question 5

After applying a patch, a critical application fails to start. What is the fastest recovery action assuming a recent snapshot exists?

Accepted Answer

Roll back to the pre-patch snapshot

Answer

Rolling back to a pre-patch snapshot is the fastest recovery method when a snapshot was taken before the change.

(SAC) System Administration Certification Practice Test

(SAC) System Administration Certification Practice Test

SAC System Maintenance and Troubleshooting 3