Operating System (OS)
Memory management is :

replaced with virtual memory on current systems
not used in modern operating system
not used on multiprogramming systems
critical for even the simplest operating systems
None of these

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Operating System (OS)
Indicate which, of the following, in not true about an interpreter

Interpreter analyses each source statement every time it is to be executed
None of these
All of these
Interpreter is a kind of translator
Interpreter generates an object program from the source program

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Operating System (OS)
File record length

should be chosen to match the data characteristics
should always be fixed
Should always be variable
None of these
depends upon the size of the file

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