What do well-known port numbers designate?
A. Well-known port numbers designate malicious applicaitons
B. Well-known port numbers are only used to attack networks
C. Well-known port numbers designate router ports.
D. Well-known port numbers designate specific applications running on a server.
D. Well-known port numbers designate specific applications running on a server.
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Answer the following questions true (T) or false (F)
1. Java began as a language for home appliances. 2. Applets were designed to run as stand-alone applications.
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".
How many times is the println statement executed?
``` for (int i = 0; i < 10; i++) for (int j = 0; j < 10; j++) System.out.println(i * j); ``` a. 100 b. 20 c. 10 d. 45
A database record equivalent is also known as a(n) ________
Fill in the blank(s) with correct word