Lesson 2

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What is the significance of the PID value 0 in the context of child processes in Linux?

It is the PID assigned to the child process by the fork() system call.

It signifies that the process making the call is the child process. (correct)

It indicates the PID of the init process.

It represents the parent process ID.

What is a pipe in Linux, and how does it function?

A software mechanism for memory management.

A one-way communication channel between processes. (correct)

A hardware interface for I/O operations.

A system call for creating new threads.

What is the purpose of POSIX IPC?

To define the standards for internal process scheduling.

To facilitate the creation of independent processes.

To establish network communication protocols.

To provide a set of standards for inter-process communication. (correct)

How do POSIX message queues differ from pipes?

Message queues allow for priority-based messaging. Signup and view all the answers

Which IPC mechanism allows for bidirectional communication without the need for a parent-child relationship?

FIFO (named pipes) Signup and view all the answers

What is a process in the context of operating systems?

An instance of a program running Signup and view all the answers

Which system call in Linux is used for creating a new process?

fork() Signup and view all the answers

What is the purpose of the exec() family of functions in process management?

To replace the process memory space with a new program Signup and view all the answers

In Linux, what happens to a child process that has terminated, but the parent process has not yet called wait()?

It becomes a zombie process Signup and view all the answers

What does the fork() system call do in the context of operating systems?

Create a new process Signup and view all the answers

Lesson 2

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Questions and Answers

What is the significance of the PID value 0 in the context of child processes in Linux?

What is a pipe in Linux, and how does it function?

What is the purpose of POSIX IPC?

How do POSIX message queues differ from pipes?

Which IPC mechanism allows for bidirectional communication without the need for a parent-child relationship?

What is a process in the context of operating systems?

Which system call in Linux is used for creating a new process?

What is the purpose of the exec() family of functions in process management?

In Linux, what happens to a child process that has terminated, but the parent process has not yet called wait()?

What does the fork() system call do in the context of operating systems?

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