All of the following are examples of application software EXCEPT ____.
A. document production
B. spreadsheet creation
C. communicating with others
D. programming languages
Answer: D
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Supose the follwoing program displays a pane in the stage. What is the output if the user presses the DOWN arrow key?
``` import javafx.application.Application; import static javafx.application.Application.launch; import javafx.scene.Scene; import javafx.scene.layout.Pane; import javafx.stage.Stage; // import javafx classes omitted public class Test1 extends Application { @Override public void start(Stage primaryStage) { // Code to create and display pane omitted Pane pane = new Pane(); Scene scene = new Scene(pane, 200, 250); primaryStage.setTitle("MyJavaFX"); // Set the stage title primaryStage.setScene(scene); // Place the scene in the stage primaryStage.show(); // Display the stage pane.requestFocus(); pane.setOnKeyPressed(e -> System.out.print("Key pressed " + e.getCode() + " ")); pane.setOnKeyTyped(e -> System.out.println("Key typed " + e.getCode())); } /** * 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. Key pressed DOWN Key typed UNDEFINED b. Key pressed DOWN Key typed c. Key typed UNDEFINED d. Key pressed DOWN
Which of the following statements about peer-to-peer applications is false?
a) Centralized P2P applications follow the client/server relationship. b) In pure P2P applications, it is difficult to determine who is on the network. c) Centralized P2P applications simply management tasks, such as monitoring user access. d) All file-sharing applications are pure P2P applications.
Which statement is false?
a. With datagram sockets a process establishes a connection to another process. b. The TCP protocol is used for transmission with stream sockets. c. The UDP protocol is used for transmission with datagram sockets. d. With the UDP protocol packets can be lost, duplicated or even arrive out of sequence.
To make columns B - D in a table equal width, you must first
A. click the Distribute Columns button B. click the Distribute Rows button C. select columns B - D D. key the desired width in the Cell Width box