A ____ is one where multiple keys are needed to identify a tuple uniquely.

A. unique primary key
B. discrete primary key
C. foreign primary key
D. composite primary key


Answer: D

Computer Science & Information Technology

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Which of the following statements is false?

a. The preferred mechanism for accessing an element’s index and value is the built-in function enumerate, which receives an iterable and creates an iterator that, for each element, returns a tuple containing the element’s index and value. b. The following code uses the built-in function list to create a list containing enumerate’s results: colors = ['red', 'orange', 'yellow'] colors_list = list(enumerate(colors)) c. The following for loop unpacks each tuple returned by enumerate into the variables index and value and displays them: for index, value in enumerate(colors): print(f'{index}: {value}') d. Each of the above is true.

Computer Science & Information Technology

Resolution refers to the distance at which a subject in front of the lens is in sharp focus

Indicate whether the statement is true or false

Computer Science & Information Technology

In code, it is perfectly correct for one branch of the selection to be a "do nothing" branch.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

A number assigned to a SATA device is known as a SATA ID and that determines each drive's priority that is attached to the same cable

Indicate whether the statement is true or false

Computer Science & Information Technology