Disk Operating System (DOS) - Engineering

Q1:

Which command will prevent subsequent changes to the file CBT.EXE?

A RENAME + r CBT.EXE

B ATTRIB + r CBT.EXE

C COPY + r CBT.EXE

D MODE + r CBT.EXE

E None of the above

ANS:B - ATTRIB + r CBT.EXE

No answer description is available.