Podcast
Questions and Answers
What is the purpose of interprocess communication (IPC) mechanism?
What is the purpose of interprocess communication (IPC) mechanism?
- To produce and consume information
- To implement a shared-memory system
- To allow multiple tasks to run concurrently
- To exchange data and information among cooperating processes (correct)
What is the producer-consumer problem an example of?
What is the producer-consumer problem an example of?
- Shared-memory system
- Interprocess communication model
- Message passing system
- Cooperating process paradigm (correct)
What is the main difference between unbounded-buffer and bounded-buffer systems?
What is the main difference between unbounded-buffer and bounded-buffer systems?
- Type of data being exchanged
- Type of IPC mechanism used
- Buffer size limitation (correct)
- Number of processes involved
What is the purpose of the send() and receive() operations in a message system?
What is the purpose of the send() and receive() operations in a message system?
What is required for processes P and Q to communicate in a message system model?
What is required for processes P and Q to communicate in a message system model?
What are the two operations provided by an IPC facility?
What are the two operations provided by an IPC facility?
What is an example of a cooperating process paradigm?
What is an example of a cooperating process paradigm?
What is the primary role of interprocess communication mechanisms?
What is the primary role of interprocess communication mechanisms?
What is a characteristic of cooperating processes?
What is a characteristic of cooperating processes?
What is one advantage of process cooperation?
What is one advantage of process cooperation?
What is a result of process termination when a parent process terminates?
What is a result of process termination when a parent process terminates?
Why may a parent process terminate a child process?
Why may a parent process terminate a child process?
What is an advantage of process cooperation in terms of computation?
What is an advantage of process cooperation in terms of computation?
What is a characteristic of independent processes?
What is a characteristic of independent processes?
Why may a parent process terminate itself?
Why may a parent process terminate itself?
What is an advantage of process cooperation in terms of system design?
What is an advantage of process cooperation in terms of system design?
What is the primary reason for creating a new process in response to an interactive logon?
What is the primary reason for creating a new process in response to an interactive logon?
When a parent process creates children processes, what is the resulting structure of processes?
When a parent process creates children processes, what is the resulting structure of processes?
What is one way in which parent and children processes can share resources?
What is one way in which parent and children processes can share resources?
What is the primary reason for process creation due to modularity or parallelism?
What is the primary reason for process creation due to modularity or parallelism?
What happens when a child process is created with a duplicate address space of the parent process?
What happens when a child process is created with a duplicate address space of the parent process?
What is one way in which parent and children processes can execute?
What is one way in which parent and children processes can execute?
Why is process creation important in operating systems?
Why is process creation important in operating systems?
What is the primary reason for process creation by the OS on behalf of a user program?
What is the primary reason for process creation by the OS on behalf of a user program?
Flashcards are hidden until you start studying
Study Notes
Interprocess Communication (IPC)
- Cooperating processes require an IPC mechanism to exchange data and information
- IPC allows processes to communicate and synchronize their actions
Shared-Memory Systems
- Producer-Consumer Problem: producer process produces information that is consumed by a consumer process
- Unbounded-buffer: no practical limit on the size of the buffer
- Bounded-buffer: assumes a fixed buffer size
Message System
- Mechanism for processes to communicate without resorting to shared variables
- IPC facility provides two operations: Send(message) and Receive(message)
Process Communication
- Processes P and Q need to establish a communication link to exchange messages via send/receive
- Methods for logically implementing a link and the send()/receive() operations:
- Direct or indirect communication
- Synchronous or asynchronous communication
Process Termination
- Reasons for process termination:
- Invalid instruction
- Privileged instruction
- Data misuse
- Operator or OS intervention
- Parent termination
- Process executes last statement and asks the OS to delete it (exit)
- Parent may terminate execution of child processes (abort)
Independent and Cooperating Processes
- Independent process: cannot affect or be affected by the execution of another process
- Cooperating process: can affect or be affected by the execution of another process
- Advantages of process cooperation:
- Information sharing
- Computation speed-up
- Modularity: divide the system into a number of functions
Process Description and Control
- Process creation:
- In response to a new batch job
- Interactive logon
- Created by OS to provide a service
- Spawned by an existing process
- Process control:
- Process creation
- Process termination
- Cooperating processes
- Inter-process communication (IPC)
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
