The NOT NULL keywords are often used with primary keys to require that a field include a value.
Answer the following statement true (T) or false (F)
True
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Music is stored on CDs in a digital format called ____.
A. DVD B. CD-RW C. CD-DA D. CD-DB
Write a single C++ statement to accomplish each of the following (assume that using declarations have not been used):
a) Declare the variables c, thisIsAVariable, q76354 and number to be of type int. b) Prompt the user to enter an integer. End your prompting message with a colon (:) followed by a space and leave the cursor positioned after the space. c) Read an integer from the user at the keyboard and store it in integer variable age. d) If the variable number is not equal to 7, print "The variable number is not equal to 7". e) Print the message "This is a C++ program" on one line. f) Print the message "This is a C++ program" on two lines. End the first line with C++. g) Print the message "This is a C++ program" with each word on a separate line. h) Print the message "This is a C++ program". Separate each word from the next by a tab.
Plot the following equations that pass through the origin using any two points.
y = 2x Whenx=0 y=0 Giving point (0, 0) When y = 0 x = 0 Giving point (0, 0) Thus we need another point Whenx2 y = 4 Giving point (2, 4)
A ________ is hidden computer code that does not replicate but sits dormant on your system until a certain event or set of circumstances triggers it into action.
a. logic bomb b. virus c. worm d. time bomb