File protection mechanism in UNIX environment: 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 Explanation: From the above table, Each cell in the table represents the Boolean values. The Boolean value determines whether the file is to be read, write, or execute. The Boolean value “Yes” specifies that the permission is granted to access the file. The Boolean value “No” specifies that the permission is not granted to access the file.

Question

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Answer 1

Question

Chapter 11, Problem 40E

a.

Program Plan Intro

File protection mechanism in UNIX environment:

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

Explanation:

From the above table,

Each cell in the table represents the Boolean values.

The Boolean value determines whether the file is to be read, write, or execute.

The Boolean value “Yes” specifies that the permission is granted to access the file.

The Boolean value “No” specifies that the permission is not granted to access the file.

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

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Answer 2

Question

Chapter 11, Problem 40E

a.

Program Plan Intro

File protection mechanism in UNIX environment:

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

Explanation:

From the above table,

Each cell in the table represents the Boolean values.

The Boolean value determines whether the file is to be read, write, or execute.

The Boolean value “Yes” specifies that the permission is granted to access the file.

The Boolean value “No” specifies that the permission is not granted to access the file.

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

Expert Solution & Answer

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Answer 3

Question

Chapter 11, Problem 40E

a.

Program Plan Intro

File protection mechanism in UNIX environment:

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

Explanation:

From the above table,

Each cell in the table represents the Boolean values.

The Boolean value determines whether the file is to be read, write, or execute.

The Boolean value “Yes” specifies that the permission is granted to access the file.

The Boolean value “No” specifies that the permission is not granted to access the file.

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Chapter 11, Problem 40E

a.

Program Plan Intro

File protection mechanism in UNIX environment:

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

Explanation:

From the above table,

Each cell in the table represents the Boolean values.

The Boolean value determines whether the file is to be read, write, or execute.

The Boolean value “Yes” specifies that the permission is granted to access the file.

The Boolean value “No” specifies that the permission is not granted to access the file.

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

Expert Solution & Answer

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Answer 5

Chapter 11, Problem 40E

a.

Program Plan Intro

File protection mechanism in UNIX environment:

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

Explanation:

From the above table,

Each cell in the table represents the Boolean values.

The Boolean value determines whether the file is to be read, write, or execute.

The Boolean value “Yes” specifies that the permission is granted to access the file.

The Boolean value “No” specifies that the permission is not granted to access the file.

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

Answer 6

Chapter 11, Problem 40E

a.

Program Plan Intro

File protection mechanism in UNIX environment:

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

Explanation:

From the above table,

Each cell in the table represents the Boolean values.

The Boolean value determines whether the file is to be read, write, or execute.

The Boolean value “Yes” specifies that the permission is granted to access the file.

The Boolean value “No” specifies that the permission is not granted to access the file.

Answer 7

Chapter 11, Problem 40E

a.

Program Plan Intro

File protection mechanism in UNIX environment:

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

Explanation:

From the above table,

Each cell in the table represents the Boolean values.

The Boolean value determines whether the file is to be read, write, or execute.

The Boolean value “Yes” specifies that the permission is granted to access the file.

The Boolean value “No” specifies that the permission is not granted to access the file.

Answer 8

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Answer 9

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Answer 10

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Answer 11

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Answer 12

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

Answer 13

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 11 - Prob. 1E Ch. 11 - Prob. 2E Ch. 11 - Prob. 3E Ch. 11 - Prob. 4E Ch. 11 - Prob. 5E Ch. 11 - Prob. 6E Ch. 11 - Prob. 7E Ch. 11 - Prob. 8E Ch. 11 - Prob. 9E Ch. 11 - Prob. 10E

Concept explainers

Explanation of Solution

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Explanation of Solution

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

Explanation of Solution

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

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Chapter 11 Solutions

Operation	Owner	Group	World
Read	Yes	Yes	Yes
Write/Delete	Yes	Yes	No

Concept explainers

Explanation of Solution

b. Access to write/delete the file: From the above table, It is known that the owner and list of users in a group are only allowed to write or delete the data from the file. The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

Explanation of Solution

c. Access to execute the file: From the above table, It is known that only the “Owner” is allowed to execute the data from the file. The Boolean value “Yes” is present only on the “Owner” and ind...

Explanation of Solution

d. Content of the file: From the above table, It is known that only the “Owner” is allowed to execute the data from the file. So, the file must be an executable file. The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...

Want to see the full answer?

Chapter 11 Solutions

b.

Access to write/delete the file:

From the above table,

It is known that the owner and list of users in a group are only allowed to write or delete the data from the file.

The Boolean value “Yes” is present only on the “Owner”, and “Groupp&#...

c.

Access to execute the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

The Boolean value “Yes” is present only on the “Owner” and ind...

d.

Content of the file:

From the above table,

It is known that only the “Owner” is allowed to execute the data from the file.

So, the file must be an executable file.

The Boolean value “Yes” is present only on the “Owner” to perform execution operation in the file...