A common technique for obfuscating data is to use exclusive-or (XOR) with some key; it is inexpensive and symmetric. A problem occurs when this is used on file formats like portable executable where there are many null bytes, since XORing nulls with the key ends up writing the key out. A slightly more complex algorithm uses a Linear Feedback Shift Register (LFSR) to produce a key stream, which will be XORed with the data. A generic LFSR is:

Type the correct answer in the box. spell all words correctly. under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Write a program that reads a file consisting of students’ test scores in the range 0–200. it should then determine the number of students having scores in each of the following ranges: 0–24, 25–49, 50–74, 75–99, 100–124, 125–149, 150–174, and 175–200. output the score ranges and the number of students. (run your program with the following input data: 76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189.)

Avariable definition defines the name of a variable that will be used in a program, as well as