Windows 98 includes the ability to check the digitally signed hardware drivers. Which of the
following are true?

A.
Drivers are the only files supplied with W98 that can checked for digital signatures and all
drivers included with W98 have been digitally signed

B.
If a file on a windows W98 has been digitally signed it means that the file has passed quality
testing by Microsoft.

C.
The level to which signature checking is implemented could only be changed by editing the
registry

D.
All of the statements are true

Explanation:
Windows device drivers and operating system files have been digitally signed by
Microsoft to ensure their quality. A Microsoft digital signature is your assurance that a particular file
has met a certain level of testing, and that the file has not been altered or overwritten by another
program’s installation process.
Depending on how your administrator has configured your computer, Windows either ignores
device drivers that are not digitally signed, displays a warning when it detects device drivers that
are not digitally signed (the default behavior), or prevents you from installing device drivers without
digital signatures.
Windows includes the following features to ensure that your device drivers and system files remain
in their original, digitally-signed state:
•Windows File Protection
•System File Checker
•File Signature Verification
Windows XP help.
Not A: operating system files are included.
Not C: the setting can be changed in the GUI.