Application Service & Fault Issues

If an application crashes, what is the first priority?

preserve any data that was being processed

What features can minimize data loss from application crashes?

Microsoft Office recovery files, Windows File History, and OneDrive cloud storage

Before ending a crashed application, what should you try first?

give the process time to become responsive again

What should you establish before ending a crashed application?

whether you need to try to recover data from temporary files or folders

What should you use to end a crashed application process after preserving data?

Task Manager

If an application crashes continually, what should you check for possible causes?

the event logs

What should you try to identify when an application keeps crashing?

whether the cause lies in processing a particular data file

If you cannot identify a specific cause of an application problem, what is the generic solution?

check for an application update

Where is the application update option usually located?

in the Help menu

If an update does not fix an application problem, what is the next step?

uninstall then reinstall, or perform a repair installer

What might help if the Windows installer fails to remove every file and registry setting?

following manual uninstall instructions

If you see "One or more services failed to start" during Windows load, what should you check first?

Event Viewer or the Services snap-in

What can you try first with a service that failed to start?

start or restart the service manually

If a noncritical service gets stuck at startup, how can it be configured?

delayed start

Why must service dependencies be checked?

some services cannot start until a dependent service is running

What must you verify about a service account?

that it is a valid user or system account and the configured password is correct

If a core Windows service is affected, what should you check and scan?

system files, the disk for errors, and malware

If an application service is affected, what should you try?

reinstalling the application

What command can re-register a DLL that a service relies upon?

regsvr32

What can faulty software uninstall routines leave behind?

orphan registry entries and startup shortcuts

Which tools can you use to look for orphaned items?

msconfig or regedit

Why can time drift cause problems?

authentication and backup depend on closely synchronized time

How much time discrepancy can some authentication systems be intolerant of?

30 or 60 seconds

What motherboard component keeps local PC time?

a battery-powered real-time clock (RTC) chip

Why is the RTC chip not a reliable authoritative time source?

relying on internal time can lead to time drift

What can happen if remote clients use different time sources than network servers?

servers and clients can time drift

What should network services ideally use as time sources?

GPS-synchronized time sources or a pool of Internet time sources

Why is sampling from a pool of time sources useful?

helps to identify and resolve drifts

What should clients use as authoritative time sources?

the servers