Operating System (OS)
A development strategy whereby the executive control modules of a system are coded and tested first, is known as

All of these
Bottom-up development
None of these
Left-Right development
Top-down development

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Operating System (OS)
Multiprogramming systems:

are easier to develop than single programming system
None of these
execute more jobs in the same time period
execute each job faster
are used only on large mainframe computers

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Operating System (OS)
The necessary conditions needed before deadlock can occur?

Mutual Exclusion, No Hold and wait, Preemption, Circular Wait
Mutual Exclusion, Hold and wait, No Preemption, Circular Wait
Mutual Exclusion, Hold and wait, Preemption, No Circular Wait
No Mutual Exclusion, Hold and wait, Preemption, Circular Wait

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