Table of Contents
- 1 What is not shared between threads?
- 2 Which of the following does a thread not share with other threads?
- 3 Is heap shared between threads?
- 4 Do threads share global variables?
- 5 Which of these is not a thread state?
- 6 What resources are typically shared by all of the threads of a process?
- 7 Why are there multiple threads in a process?
- 8 Can a process share memory with a thread?
Threads share the code and data segments and the heap, but they don’t share the stack. There’s a difference between “able to access data in the stack” and sharing the stack.
1. Which one of the following is not shared by threads? Explanation: None.
What are the things shared by threads?
The items that are shared among threads within a process are: Text segment (instructions) Data segment (static and global data) BSS segment (uninitialized data)
Do threads share objects?
In contrast, threads can share class fields and instance fields because those variables do not allocate on a thread’s method-call stack. Instead, they allocate in shared heap memory—as part of classes (class fields) or objects (instance fields).
Heap – Since global variable is stored in the heap, heap is shared among threads. Stack – Since each thread can have its own execution sequence/code, it must have its own stack on which it might push/pop its program counter contents (when say function calls and returns happen).
Because threads within a process share the same memory map and hence share all global data (static variables, global variables, and memory that is dynamically-allocated via malloc or new), mutual exclusion is a critical part of application design.
Which one of the following is not shared by?
| Q. | Which one of the following is not shared by threads? |
|---|---|
| A. | program counter |
| B. | stack |
| C. | both program counter and stack |
| D. | none of the mentioned |
Which is not a thread state?
Answer: C. Explanation: A thread can be in one of the five states: New, Runnable, Running, Non-Runnable (Blocked), Terminated.
Which of these is not a thread state?
What resources are typically shared by all threads of a process? Threads of the same process share memory, code section, data section, and OS resources.
Which of the following is are shared by all threads in a process?
Which of the following is/are shared by all the threads in a process? Explanation: Every thread have its own stack , register, and PC, so only address space that is shared by all thread for a single process.
How do threads share data with one another?
Threads are sometimes called lightweight processes because they have their own stack but can access shared data. Because threads share the same address space as the process and other threads within the process, the operational cost of communication between the threads is low, which is an advantage.
Why are there multiple threads in a process?
A thread is a path of execution within a process. A process can contain multiple threads. Why Multithreading? A thread is also known as lightweight process. The idea is to achieve parallelism by dividing a process into multiple threads. For example, in a browser, multiple tabs can be different threads.
Threads share data and code while processes do not. The stack is not shared for both. Processes can also share memory, more precisely code, for example after a Fork (), but this is an implementation detail and (operating system) optimization.
How is the stack divided in a multithreading process?
The stack area of the process is divided among threads, i.e. if there are 3 threads, then the stack area of the process is divided into 3 parts and each is given to the 3 threads. In other words, when we say that each thread has its own stack, that stack is actually a part of the process stack area allocated to each thread.
Which is easier to communicate between multiple threads?
Communication: Communication between multiple threads is easier, as the threads shares common address space. while in process we have to follow some specific communication technique for communication between two process. 6.