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Linux MCQ Questions & Answers | Computer Science

Learn Linux MCQ questions & answers are available for a Computer Science students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Linux MCQ question is the important chapter for a computer science and technical students. Page-4 section-7

Each section contains 100 MCQs on Linux .
31
Which command is used to delete the character before the cursor location in vi editor?
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Answer & Solution
Answer: Option A
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32
In sysfs, each represented bus type has two directories named as
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
33
Which of the following files need to be referred for user's secondary group?
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Answer & Solution
Answer: Option C
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34
What is job number?
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Answer & Solution
Answer: Option B
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35
What is the output of this program?
#include<stdio.h>
#include<fcntl.h>
 
int main()
{
    int fd, count;
    fd = open("demo.txt",O_WRONLY|O_CREAT);
    count = write(fd,"Linux System Programming",5);
    if(count != 5)
        perror("write");
    return 0;
}
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Answer & Solution
Answer: Option A
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36
When a device is removed from the system
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Answer & Solution
Answer: Option A
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37
The following commands gives the output like this
#cat file1 file2
#cat: file1: No such file or directory
If we execute the command “cat file1 file2 1>2 2>&1” the output would be
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Answer & Solution
Answer: Option B
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38
Which among the following interacts directly with system hardware?
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Answer & Solution
Answer: Option C
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39
Which one of the following is not a platform specific code?
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Answer & Solution
Answer: Option D
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40
Which one of the following directory contains every physical device that has been discovered by the bus types registered with the kernel?
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Answer & Solution
Answer: Option A
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