What is a rootkit and why is it so difficult to detect?
What will be an ideal response?
A rootkit is a virus that loads itself before the OS boot is complete. It can hide in boot managers, boot loader programs, or kernel mode device drivers. UEFI secure boot is especially designed to catch rootkits that launch during the boot. Because it is already loaded when most anti-malware software loads, it is sometimes overlooked by the software. A rootkit can hide folders that contain software it has installed, cause Task Manager to display a different name for its process, hide registry keys, and can operate in user mode or kernel mode. This last trick helps it remain undetected.
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Which of the following statements is false?
a. Set method add inserts its argument if the argument is not already in the set; otherwise, the set remains unchanged. b. Set method remove removes its argument from a set—a KeyError occurs if the value is not in the set. c. Method discard also removes its argument from a set but does not cause an exception if the value is not in the set. d. You can remove the first element of a set with pop.
The binary numbering system uses ________
A) 0s and 1s B) digits 0 to 9 C) 1s and 2s D) 64 bits
Acquiring Microsoft Office through Office 365, a subscription service, will allow all of the following EXCEPT
A. get the most up-to-date versions of apps B. move apps from old to new devices C. install the apps on a maximum of two devices D. ability to install on multiple devices
Most operating systems today use a text-based user interface.
Answer the following statement true (T) or false (F)