If a file has this mode number: 0402 what can the user who owns the file do with the file?O write to itI read read from itexecute itO nothingIf a file has this mode number: 0305 what can the user who owns the file do with the file?O write to itI read from itexecute itO nothingIf a file has this mode number: 0011 what can the user who owns the file do with the file?| write to itO read from itI execute itnothing Consider the following program. It opens filel and file2 which have already been created with:rm filel; rm file2; touch filel; touch file2;echo "ghi" > filelecho "gst" > file2Therefore, each file contains 4 bytes.Here is the program (it will not compile as is because it contains a question mark):/* problem7.c */#include cunistd.h>int main(void){char buffer = 'W';open("filel", 2);open("file2",2);1seek (3, ?,1);write(3,8buffer, 1);1seek(4, -2,2);write(4, 8buffer, 1);read (e, &buffer, 1);write(4,8buffer, 1);1seek(3, -3,2);write(3, &buffer, 1);write(4, "\n", 1);1seek(4,1,0);write(4, &buffer, 1);close(3);close(4);Without a further header file compilation will produce a warning, but this will not affect this problem.When you enter a certain character and the single question mark is replaced with an appropriate number cat filel produces:gxiand cat file2 produces:gxWxWhat is that number and what is that character?The single question mark (?) should be replaced with:

According to the Bartelby guidelines we are supposed to answer only 3 sub part of the question at…

If a file has this mode number: 0402 what can the user who owns the file do with the file? write to it read read from it execute it nothing If a file has this mode number: 0305 what can the user who owns the file do with the file? write to it read from it execute it nothing If a file has this mode number: e011 what can the user who owns the file do with the file? write to it read from it execute it nothing

If a file has this mode number: 0402 what can the user who owns the file do with the file? write to it read read from it execute it nothing If a file has this mode number: 0305 what can the user who owns the file do with the file? write to it read from it execute it nothing If a file has this mode number: e011 what can the user who owns the file do with the file? write to it read from it execute it nothing

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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An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.

Question

If a file has this mode number: 0402 what can the user who owns the file do with the file?
O write to it
I read read from it
execute it
O nothing
If a file has this mode number: 0305 what can the user who owns the file do with the file?
O write to it
I read from it
execute it
O nothing
If a file has this mode number: 0011 what can the user who owns the file do with the file?
| write to it
O read from it
I execute it
nothing

Consider the following program. It opens filel and file2 which have already been created with:
rm filel; rm file2; touch filel; touch file2;
echo "ghi" > filel
echo "gst" > file2
Therefore, each file contains 4 bytes.
Here is the program (it will not compile as is because it contains a question mark):
/* problem7.c */
#include cunistd.h>
int main(void)
{
char buffer = 'W';
open("filel", 2);
open("file2",2);
1seek (3, ?,1);
write(3,8buffer, 1);
1seek(4, -2,2);
write(4, 8buffer, 1);
read (e, &buffer, 1);
write(4,8buffer, 1);
1seek(3, -3,2);
write(3, &buffer, 1);
write(4, "\n", 1);
1seek(4,1,0);
write(4, &buffer, 1);
close(3);
close(4);
Without a further header file compilation will produce a warning, but this will not affect this problem.
When you enter a certain character and the single question mark is replaced with an appropriate number cat filel produces:
gxi
and cat file2 produces:
gxWx
What is that number and what is that character?
The single question mark (?) should be replaced with:

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