Question

In UNIX, each process is identified by its :

a) Process Control Block
b) Device Queue
c) Process Identifier
d) None of these

Answer 1

In UNIX, each process is uniquely identified by its Process Identifier (PID), which is a unique number assigned upon process creation.

Step-by-step explanation:

In UNIX, each process is identified by its Process Identifier (PID). The PID is a unique number assigned to each process when it is created which is used by the system to manage and interact with the process throughout its lifecycle. It's worth noting that the Process Control Block is a data structure in the operating system's kernel which includes a process's PID along with other critical information about the process such as its state, program counter, CPU registers, memory limits, and more. However, the PID itself serves as the unique identifier for a process.

.