Some operating systems and email programs allow you to encrypt the contents of files and messages that are stored on your computer.
Answer the following statement true (T) or false (F)
True
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Which of the following statements is false?
a. Each cell in a GridPane can be empty or can hold one or more JavaFX components, including layout containers that arrange other controls. b. Each component in a GridPane can span multiple columns or rows. c. A TextField (package javafx.scene.control) can accept text input or display text. d. A Slider (package javafx.scene.control) represents a value in the range 0.0–1.0 by default and allows the user to select a number in that range by moving the Slider’s thumb.
Assume that R and S are relations containing n R and n S tuples, respectively. What is the maximum and minimum number of tuples that can possibly be in the result of each of the following expressions (assuming appropriate union compatibilities)?
a. R ? S b. R ? S c. R ? S d. R × S e. R S f. R / S g. ?s=4(R) × ?s,t(S)
Information engineering methodology treats an information system as a collection of objects that interact to accomplish tasks.
Answer the following statement true (T) or false (F)
The binary equivalent of 24 is ____.
A. 00000011 B. 11000000 C. 00011000 D. 00001111