If are does not want anyone else to read or write to a file named datfile,except through a program in a file filex,then he may use

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Mr. Dubey

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📊 Operating System Architecture

Q. If are does not want anyone else to read or write to a file named datfile,except through a program in a file filex,then he may use

(A) chmod u+s filex; chmod go -rw datfile
(B) chmod 4711 filex; chmod go -rw datfile
(C) chmod 4711 datfile; chmod go - rw filex
(D) both a & b

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✅ Correct Answer: (D) both a & b

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