Fill in the Missing Step in the Following Deadlock Situation

question 32

Multiple Choice

Fill in the missing step in the following deadlock situation.Two users from the local board of education are each running a program (P1 and P2) ,and both programs will eventually need two DVD drives to copy files from one disc to another.Only two DVD-R drives are available and they're allocated on an "as requested" basis.Soon the following sequence transpires:
1) P1 requests drive 1 and gets it.
2) ____
3) P1 requests drive 2 but is blocked.
4) P2 requests drive 1 but is blocked.

• A) P1 requests drive 2.
• B) P2 requests drive 2 and gets it.
• C) P2 requests drive 1 but is blocked.
• D) P1 releases drive 1.

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Definitions:

Capacitance

The ability of a system to store electrical charge when voltage is applied, typically measured in Farads.

Parallel Connection

A configuration in electrical circuits where components are connected along multiple paths, so the same voltage is applied to each component.

Total Capacitance

In a circuit, the overall capacitance, which can be calculated differently for series and parallel configurations of capacitors, affecting the circuit’s reactance and phase angle.

μ F

Microfarad, a unit of capacitance equal to one millionth of a farad, used in measuring the capacity of a capacitor.