ProcessThreads and Synchronisation
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Questions and Answers

If a thread opens a file for reading with read privileges, then …

  • Question 6Select one: a. no other thread can read from that file.
  • b. other threads in other processes can also read from that file.
  • c. other threads in the same process can also read from that file. (correct)

    • Which of the following memory segments are not shared between threads of the same process?

  • a. text segment
  • b. stack segment (correct)
  • c. heap segment d. data segment
  • d. data segment

    • Which of the following statements about process control blocks are correct?

  • Processes have a unique numeric identifier, which is stored in the process control block and commonly used to refer to a specific process. (correct)
  • b. Process control blocks are usually organized into a binary tree, reflecting at which time processes were created.
  • c. On many operating systems, it is impossible to print a consistent snapshot of the list of running processes while the operating system is running. (correct)
  • The content of processor registers can be saved in the process control block if a process got interrupted by the operating system kernel. (correct)

    • Which of the following statements about process states are correct?

    <p>The state of a process is stored in its process control block.</p> Signup and view all the answers

    Which of the following statements about processes are correct?

    <p>b. Every process maintains its own heap and stack memory segments.</p> Signup and view all the answers

    Which of the following system calls initialize the stack of the calling process?

    <p>a. exec()</p> Signup and view all the answers

    A proper solution of the critical section problem must satisfy the following requirements.

    <p>a. Bounded waiting</p> Signup and view all the answers

    Which of the following statements are proper definitions of critical sections?

    <p>a. A critical section is a part of the program code where only one thread may execute at the same point in time.</p> Signup and view all the answers

    Which of the following statements are true about semaphores?

    Signup and view all the answers

    Which of the following statements are true about the semaphore pattern?

    <p>b. The multiplex pattern is a generalization of the mutual exclusion pattern.</p> Signup and view all the answers

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