Operating System (OS)
Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and

None of these
hold and wait
race around condition
buffer overflow
deadlock avoidance

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Operating System (OS)
Which, of the following, is true for testing and debugging?

Testing detects the syntax errors in the program while debugging corrects those errors in the program
All of these
None of these
Testing and debugging indicate the same thing
Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program

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