Frequency analysis refers to:

a. Analyzing the rate of occurrence of characters in ciphertext
b. Eavesdropping on spread-spectrum radio frequency transmission in order to harvest encryption keys
c. Analyzing the rate of occurrence of characters in plaintext
d. Analysis of emanations in order to harvest encryption keys


a. Analyzing the rate of occurrence of characters in ciphertext

Computer Science & Information Technology

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A GUI is being designed that will detect and respond to a mouse event. How many methods must appear in the listener object for the event?

a) 1 b) 2 c) 3 d) 4 e) 5

Computer Science & Information Technology

As a rule of thumb for PowerPoint presentations, the projector should have the same ____ as your computer screen.

A. resolution B. pixels C. lumens D. stillness

Computer Science & Information Technology

For each of the following, write a single statement that performs the specified task. Assume that long variables value1 and value2 have been declared and value1 has been initialized to 200000.

a) Declare the variable longPtr to be a pointer to an object of type long. b) Assign the address of variable value1 to pointer variable longPtr. c) Display the value of the object pointed to by longPtr. d) Assign the value of the object pointed to by longPtr to variable value2. e) Display the value of value2. f) Display the address of value1.

Computer Science & Information Technology

You can access the system configuration dialog by typing the ____ command at the privileged EXEC prompt.

A. init B. config C. dialog D. setup

Computer Science & Information Technology