Let X be a node in a binary tree. The collection of all descendants of X

A) form a binary tree called the subtree rooted at X
B) form the left subtree of X
C) form the right subtree of X
D) None of the above


A) form a binary tree called the subtree rooted at X

Computer Science & Information Technology

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An enumeration type

a) is type whose values are defined by a list of constants of type int. b) is a type separate from any of the integer types c) can be converted to integer types d) is a type that a programmer should avoid doing arithmetic with.

Computer Science & Information Technology

A disk _____ is the best insurance against a total hard disk failure.

A. image B. restore C. backup D. copy

Computer Science & Information Technology

Discuss whether barcodes are more or less secure than magnetic stripe cards

What will be an ideal response?

Computer Science & Information Technology

The function ____ returns the estimated variance of the numbers in the range.

A. VAR(number1,number2...) B. EVAR(number1,number2...) C. ESTVAR(number1,number2...) D. EV(number1,number2...)

Computer Science & Information Technology