A dictionary attack is being used by an attacker to break into a network. What does this mean?
A) The attacker is using only lowercase letter for unknown words.
B) The attacker is using known passwords and many variations of upper- and lowercase combinations.
C) The attacker is using only uppercase letters for common words.
D) The attacker is using a secret list of code words.
E) All of these answers are correct.
B
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What do the calls to exit(…) do? When exit(0) and exit(1) are called, what receives these arguments and what is done with them?
a) The exit( ) function stops the program. The argument is discarded. b) The exit( ) function is obsolete. There is no longer any such function in the C++ libraries. c) The exit( ) function stops the program. The argument is passed to the operating system which uses it for an error code. d) The exit( ) function temporarily stops the program, and sends the argument to the operating system which uses it for an error code. The operating system restarts the program after fixing the error. e) The exit( ) function allows the systems programmer to escape when the power supply catches fire.
NP-complete problems
a. have no known solution b. have too many possibilities to solve c. must consider every possible solution to find the best one d. can be solved with a work- proportional-to-n algorithm
A ____ edge is a blended edge.
A. soft B. feathered C. supple D. blurred
Navigating between cells in a Microsoft Word table and in a Microsoft Excel spreadsheet is very similar; to move to the next cell down, simply press Enter
Indicate whether the statement is true or false