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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Which of the following statements are correct for recursion?
a) Recursion is available only in the C and C++ languages. b) Recursion is available in all programming languages. c) Recursion is available in most modern programming languages, including C++. d) Recursion is a preprocessor technique e) Recursion, if used with care can be a useful programming technique.
In the Intel architecture, the __________ register contains the offset (or displacement) in the current code segment for the next instruction to be executed.
a. instruction counter b. instruction pointer c. PSW d. L1 code
The following code segment is syntactically correct, but difficult to read. Rewrite the segment using indentation that improves its readability.
``` if (road_stat == 's') if (temp > 0) printf("Roads wet.\n"); else printf("Roads icy.\n"); else printf("Roads dry.\n"); ```
Using a(n) template to create a document can save time and ensure your document looks great. _________________________
Answer the following statement true (T) or false (F)