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  • Riyaad Kherekar thinks this is interesting:

. chmod u+rw,g+r,o+r file.txt

From

Cover of CompTIA® Linux+ / LPIC-1 Cert Guide: (Exams LX0-103 & LX0-104/101-400 & 102-400)

Note

B, C. Answers B and C are correct because the highest traffic partitions in the choices are /home (users data) and /var (log files, print spools, Web, and FTP).