Which statement about cryptography is TRUE?
A. Transposition is the process of changing a key value during each round of encryption.
B. Diffusion is the process of changing the location of the plaintext within the ciphertext.
C. Substitution is the process of shuffling or reordering the plaintext to hide the original message.
D. Confusion is the process of exchanging one byte in a message for another.
B
Explanation: Diffusion is the process of changing the location of the plaintext within the ciphertext.
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Which of the following statements is false?
a. The impressive functions performed by computers involve only the simplest manipulations of 1s and 2s . b. ASCII is a popular subset of Unicode. c. Fields are composed of characters or bytes. d. On some operating systems, a file is viewed simply as a sequence of bytes.
The relational database model is currently the most widely used.
Answer the following statement true (T) or false (F)
Which of the following is NOT true in regard to the Form view of a form?
A) This view gives you an easy way to resize fields and check form appearance while you are creating the form. B) This is the view you use to enter or change data. C) This is the view that employees would use when they are performing their jobs. D) You cannot change the form design in this view.
The equal sign is the ____________________ operator.
Fill in the blank(s) with the appropriate word(s).