Operating System (OS)
In MS-DOS, relocatable object files and load modules have extensions

None of these
.EXE and .OBJ, respectively
.DAS and .EXE, respectively
.OBJ and .COM or .EXE, respectively
.COM and .OBJ, respectively

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Operating System (OS)
What is the method of handling deadlocks?

Allow the system to enter the deadlock state and then recover
Use a protocol to ensure that the system will never enter a deadlock state
All of these
Pretend that deadlocks never occur in the system

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