The circular wait condition can be prevented byGroup of answer choicesdefining a linear ordering of resource typesusing threadusing pipeall of these

The circular wait condition can be prevented by defining a linear ordering of resource types. This is one of the four necessary conditions for a deadlock to occur, as stated by Coffman's conditions for deadlock.

Here's a step-by-step explanation:

1. Define a linear ordering of resource types: This means that you assign a numerical order or hierarchy to each type of resource. For example, printer could be resource type 1, scanner could be resource type 2, and so on.

2. When a process requests resources, it must request them in an increasing order of enumeration. So, a process can request a printer and then a scanner, but not the other way around.

3. If a process has been allocated some resources and then requests a resource that is numbered lower than what it currently has, it must release all its currently held resources. Then it can request all the resources it needs, including the new one, in an increasing order of enumeration.

By following these steps, the circular wait condition can be prevented, thus avoiding deadlocks.

Please note that using threads or pipes does not directly prevent the circular wait condition. They are techniques used in process and resource management, but they do not inherently prevent deadlocks. Therefore, the correct answer to your question is "defining a linear ordering of resource types".