Update linux-quiz.md

[dhirajs16]

Resolved issue #6651

PR Checklist

This PR is ready for review and meets the requirements set out in Suggestion how to contribute

DOD

• [x] I have added new quiz{'s}
• [x] I have added new reference link{'s}
• [x] I have made small correction/improvements

Changes / Instructions

• Previously there was a same questions in Q68 and Q88, and Q88 was removed. So added new question at Q88 of similar topic.

• Correct the answer of Q75, that is, option 4: not persistent.

• Added reference link for Q88.

• Questions like (Q4, Q47), (Q24, Q54) and (Q13, Q99) are similar but not exactly the same. So no change was needed.

Thanks.

[Ebazhanov]

@all-contributors please add @dhirajs16 for design, code

[allcontributors[bot]]

@Ebazhanov

I've put up a pull request to add @dhirajs16! :tada:

[dhirajs16]

Thanks @Ebazhanov Got to learn a lot from this opportunity. Can I work on other issues as well?

[Ebazhanov]

Thanks @Ebazhanov Got to learn a lot from this opportunity. Can I work on other issues as well?

yes sure, thanks it is my pleasure