EBK COMPUTER SCIENCE ILLUMINATED
7th Edition
ISBN: 9781284174755
Author: Dale
Publisher: JONES+B CO
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Chapter 11, Problem 38E
Explanation of Solution
File protection
- It is a primary operation need to protect the file from multiple users who access the system, because there might be illegal users who can also access the file.
- The protection mechanism of the file differs based upon the type of
operating system .- The file protection mechanism in operating system is used to check whether the valid user is accessing the particular file.
- File protection mechanism is also used to identify the user who uses the file for which purpose.
- For example, in UNIX environment, the file protection is represented in the table format and consists of three rows and three columns as follows:
| Operation | Owner | Group | World |
| Read | Yes | Yes | Yes |
| Write/Delete | Yes | Yes | No |
| Execute | No | No | No |
Explanation:
From the above table,
- Each cell in the table represents the Boolean values.
- The file protection settings are divided into three types:
- Owner
- Group
- World
- Owner:
- The owner is the person who creates the file and has full rights on the file...
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Need help answering these questions!1. Design a While loop that lets the user enter a number. The number should be multiplied by 10, and the result stored in a variable named product. The loop should iterate as long as the product contains a value less than 100.
2. Design a For loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000
3. Convert the While loop in the following code to a Do-While loop:
Declare Integer x = 1
While x > 0
Display "Enter a number."
Input x
End While
Need help with these:Design a While loop that lets the user enter a number. The number should be multiplied by 10, and the result stored in a variable named product. The loop should iterate as long as the product contains a value less than 100.
2. Design a For loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000
3. Convert the While loop in the following code to a Do-While loop:
Declare Integer x = 1
While x > 0
Display "Enter a number."
Input x
End While
Convert the While loop in the following code to a Do-While loop: Declare Integer x = 1 While x > 0 Display "Enter a number." Input x End While
Chapter 11 Solutions
EBK COMPUTER SCIENCE ILLUMINATED
Ch. 11 - Prob. 1ECh. 11 - Prob. 2ECh. 11 - Prob. 3ECh. 11 - Prob. 4ECh. 11 - Prob. 5ECh. 11 - Prob. 6ECh. 11 - Prob. 7ECh. 11 - Prob. 8ECh. 11 - Prob. 9ECh. 11 - Prob. 10E
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