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These are using Linux permissions and system calls, please help

These are using Linux permissions and system calls, please help

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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These are using Linux permissions and system calls, please help

### File Permissions Exercise #### Question 2 If a file has this mode number: `0500`, what can the user who owns the file do with the file? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing #### Question 3 If a file has this mode number: `0044`, what can the user who owns the file do with the file? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing #### Question 4 If a file has this mode number: `0600`, what can the user who owns the file do with the file? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing #### Question 5 If a file has this mode number: `0007`, what can everyone else do with the file that the owner cannot? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing --- Note: These questions are designed to test your understanding of Unix-style file permissions, represented by mode numbers.
Transcribed Image Text:### File Permissions Exercise #### Question 2 If a file has this mode number: `0500`, what can the user who owns the file do with the file? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing #### Question 3 If a file has this mode number: `0044`, what can the user who owns the file do with the file? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing #### Question 4 If a file has this mode number: `0600`, what can the user who owns the file do with the file? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing #### Question 5 If a file has this mode number: `0007`, what can everyone else do with the file that the owner cannot? - [ ] write to it - [ ] read from it - [ ] execute it - [ ] nothing --- Note: These questions are designed to test your understanding of Unix-style file permissions, represented by mode numbers.
Expert Solution
Step 1

2. if file has mode number 0500 what can user owns file do file

write 

read

execute 

nothing

2. if file has mode number 0044 what can user owns file do file

write

read

execute

nothing

3. if file has mode number 0600 what can user owns file do file

4. if file has mode number 0007 what can user owns file do file

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