You can use the ____ clause of the ALTER TABLE command to change a column that currently rejects null values so that it will accept null values.
A. ADD
B. MODIFY
C. UPDATE
D. NULL
Answer: B
Computer Science & Information Technology
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The easiest way to break password security on a Windows 2000 or later machine is to use a ____ program which can set the administrator password to a blank.?
A. ?password-guessing B. ?password-burning C. ?password-cracking D. ?password-generator
Computer Science & Information Technology
The bitwise ____ operator sets a bit to 1 only if one bit 1 and the other is 0.
A. and B. exclusive or C. inclusive or D. complement
Computer Science & Information Technology
Which of these is an example of advance - fee fraud?
A. zombie b. botnet c. phish D. evil twin attach E. Nigerian letter scam
Computer Science & Information Technology
Reconnaissance is one of the most important phases of intelligence gathering for an attacker.
a. true b. false
Computer Science & Information Technology