Which of the following type of virus can change every time it is executed in an attempt to avoid antivirus detection?
A. Macro
B. Polymorphic
C. Armored
D. Boot sector
B. Polymorphic viruses can change every time they are executed. Macro-based viruses are usually placed in documents and then e-mailed to users. Armored viruses protect themselves from antivirus programs by tricking the program into thinking that they are located in a different place. Boot sector viruses load into the first sector of the hard drive; afterward the virus loads into memory when the computer boots.
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On a network, file sharing allows users to open, view, edit, copy, and delete files from a remote device, providing that they have the proper ___________.
Fill in the blank(s) with the appropriate word(s).
To prevent a class from being instantiated, _____________________
a. don't use any modifiers on the constructor. b. use the public modifier on the constructor. c. use the private modifier on the constructor. d. use the static modifier on the constructor.