In Visual Basic, the most common standard for naming controls is Modified ________ Notation

Which of the following statements opens a file named MyFile.txt and allows you to read data from it?

a. Scanner inputFile = new Scanner("MyFile.txt"); b. File file = new File("MyFile.txt"); Scanner inputFile = new Scanner(file); c. File Scanner = new File("MyFile.txt"); d. PrintWriter inputFile = new PrintWriter("MyFile.txt");

Answer the following statements true (T) or false (F)

1. As with Playfair, the strength of the Hill cipher is that it completely hides single letter frequencies. 2. A scheme known as a one-time pad is unbreakable because it produces random output that bears no statistical relationship to the plaintext. 3. The one-time pad has unlimited utility and is useful primarily for high-bandwidth channels requiring low security. 4. The most widely used cipher is the Data Encryption Standard. 5. Steganography renders the message unintelligible to outsiders by various transformations of the text.