The keyboard short-cut to Copy a graphic is
A) Ctrl+X. B) Ctrl+Z. C) Ctrl+C. D) Ctrl+V.
C
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Which of the following are advantages of optical communication links? (Select three.)
a. Extremely wide bandwidth b. Elimination of crosstalk c. Elimination of attenuation d. Security
Analyze the following code:
``` import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.StackPane; import javafx.stage.Stage; public class Test extends Application { @Override // Override the start method in the Application class public void start(Stage primaryStage) { StackPane pane = new StackPane(); Button bt1 = new Button("Java"); Button bt2 = new Button("Java"); Button bt3 = new Button("Java"); Button bt4 = new Button("Java"); pane.getChildren().addAll(bt1, bt2, bt3, bt4); Scene scene = new Scene(pane, 200, 250); primaryStage.setTitle("Test"); // Set the stage title primaryStage.setScene(scene); // Place the scene in the stage primaryStage.show(); // Display the stage } /** * The main method is only needed for the IDE with limited JavaFX * support. Not needed for running from the command line. */ public static void main(String[] args) { launch(args); } } ``` a. One button is displayed with the text "Java". b. Two buttons are displayed with the same text "Java". c. Three buttons are displayed with the same text "Java". d. Four buttons are displayed with the same text "Java".
In Access queries, you can use aggregate functions to perform a calculation on a ________ and return a ________
A) column of data, column of data B) single value, single value C) single value, column of data D) column of data, single value
The smallest element used in the composition of an image is called a(n):
A) pixel B) frame C) tag D) bitmap