A user receives the following error message when attempting to log into a server: Username or password is invalid. Which of the following should the administrator do FIRST to fix the problem?

A. Install OS patches
B. Learn of any recent changes to the system
C. Attempt to replicate the issue
D. Restore the system from backups

Answer: B. Learn of any recent changes to the system

Computer Science & Information Technology

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Which of the following statements are true?

a. A handler object fires an event. b. A source object fires an event. c. Any object such a String object can fire an event. d. A handler is registered with the source object for processing the event.

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Computer Science & Information Technology

What does the following program do?

``` // What does this program do? #include using namespace std; int mystery( int, int ); // function prototype int main() { int x, y; cout << "Enter two integers: "; cin >> x >> y; cout << "The result is " << mystery( x, y ) << endl; } // end main // Parameter b must be a positive integer to prevent infinite recursion int mystery( int a, int b ) { if ( b == 1 ) // base case return a; else // recursion step return a + mystery( a, b - 1 ); } // end function mystery ```

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Computer Science & Information Technology

A moving graphic that appears after a computer sits idle for a period of time is called a ________

A) theme B) picture password C) screen saver D) notification area

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Computer Science & Information Technology

BitLocker works best when combined with _____, a microcontroller chip on a motherboard that is used for hardware/software authentication

Fill in the blank(s) with correct word

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Computer Science & Information Technology