Answer the following statements true (T) or false (F)
1. Public-key encryption is more secure from cryptanalysis than symmetric encryption.
2. Much of the theory of public-key cryptosystems is based on number theory.
3. Asymmetric algorithms rely on one key for encryption and a different but related key for decryption.
4. The encryption algorithm performs various transformation on the ciphertext.
5. If the authenticator is encrypted with the sender's private key, it serves as a signature that verifies origin, content, and sequencing.
1. FALSE
2. TRUE
3. TRUE
4. FALSE
5. TRUE
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The requested operations and data are converted into appropriate sequences of I/O instructions, channel commands, and controller orders at the __________ layer.
A) ?device I/O ? B) ?scheduling and control C) ?logical I/O ? D) ?physical organization
What is the output from the following?
``` >>> a = -4 >>> b = 2 >>> c = abs(a) >>> x = a * c >>> print x ```
When you no longer want a password to be required to open a database, you must ________ the file or unset the password
Fill in the blank(s) with correct word
Identify the letter of the choice that best matches the phrase or definition.
a. Indexing b. Optimizing c. Dithering d. Algorithm 1. Lessens the appearance of random noise in your image that may occur when working with transparency by creating dots of color along the edge of the image. 2. Reducing the file size by removing colors from the index. 3. A set of well-defined instructions used to perform a task. 4. Finding the balance between image quality and image file size.