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

1. AES uses a Feistel structure.
2. At each horizontal point, State is the same for both encryption and decryption.
3. DES is a block cipher intended to replace AES for commercial applications.
4. The nonlinearity of the S-box is due to the use of the multiplicative inverse.
5. Virtually all encryption algorithms, both conventional and public-key, involve arithmetic operations on integers.


1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. TRUE

Computer Science & Information Technology

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Which of the following are so called short-circuit operators?

a. && b. & c. || d. |

Computer Science & Information Technology

The TODAY and NOW functions return the same result

Indicate whether the statement is true or false.

Computer Science & Information Technology

Conduct a grammatical parse of the following user story and create a list of potential class operations: Citizens can log onto a website and report the location and severity of potholes. As potholes are reported they are logged within a "public works department repair system" and are assigned an identifying number, stored by street address, size (on a scale of 1 to 10), location (middle, curb, etc.), district (determined from street address), and repair priority (determined from the size of the pothole).

What will be an ideal response?

Computer Science & Information Technology

The first step in creating a table is to ____.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology