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Operating System Communication Link Implementation Quiz

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Questions and Answers

What is the purpose of the wait() system call?

To allow a parent process to wait for the termination of a child process and retrieve its exit status (correct)
To allow a child process to continue executing even if its parent has terminated
To terminate a child process that has exceeded its allocated resources
To create a new child process and execute a program within it

What is the consequence if a parent process terminates without invoking the wait() system call?

The child process becomes an orphan process
The child process becomes a zombie process (correct)
The child process continues to execute independently
The child process is automatically terminated by the operating system

What is the purpose of the abort() system call?

To wait for the termination of a child process and retrieve its exit status
To create a new child process and execute a program within it
To deallocate the resources of a terminated process
To allow a parent process to terminate the execution of a child process (correct)

What is the term used to describe the situation where the termination of a parent process results in the termination of all its child processes, grandchild processes, and so on?

Cascading termination (D) Signup and view all the answers

What is the purpose of the operating system's process importance hierarchy in mobile operating systems?

To terminate processes in order to reclaim system resources such as memory (C) Signup and view all the answers

What is the consequence if a child process continues to execute after its parent has terminated?

The child process becomes an orphan process (B) Signup and view all the answers

What is the difference between a zombie process and an orphan process?

A zombie process has terminated but still has an entry in the process table, while an orphan process continues to execute after its parent has terminated (C) Signup and view all the answers

What is the purpose of the wait() system call in the context of process termination?

To allow a parent process to wait for the termination of a child process and retrieve its exit status (B) Signup and view all the answers

In POSIX shared memory, what function is used to open an existing segment?

shm_open(name, O_CREAT | O_RDWR, 0666) (A) Signup and view all the answers

In Mach communication, what function is used to send and receive messages?

mach_msg() (A) Signup and view all the answers

How is communication established between processes in Windows message-passing?

Opening a handle to the subsystem's connection port object (A) Signup and view all the answers

What is the primary method of communication in Mach communication?

Message-based (C) Signup and view all the answers

Which system call is used to create shared memory in POSIX?

shm_open(name, O_CREAT | O_RDWR, 0666) (A) Signup and view all the answers

How are messages sent and received in Mach communication?

Using mach_msg() (D) Signup and view all the answers

What type of communication does Windows use for message passing?

Message-passing via LPC facility (D) Signup and view all the answers

'Temporarily cache a message' option when the mailbox is full is applicable in which IPC system?

'Temporarily cache a message' is exclusive to Mach communication (C) Signup and view all the answers

'Indirect communication' is a characteristic feature of which IPC system?

'Indirect communication' is a fundamental aspect of Mach communication (B) Signup and view all the answers

'Producer-Consumer' scenario is commonly associated with which type of messaging passing?

'Producer-Consumer' model often appears in POSIX shared memory systems (B) Signup and view all the answers

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