A semaphore currently has the value 3. A process that attempts to subtract 4 from this semaphore will: options: A continue without waiting, producing a value of -1 for the semaphore B continue without waiting, producing a value of 0 for the semaphore C wait until the value of the semaphore has become at least 4 because some other process(es) increased the semaphore's value D wait until the value of the semaphore becomes exactly 4 because some other process(es) increased the semaphore's value

A semaphore currently has the value 3. A process that attempts to subtract 4 from this semaphore will: options: A continue without waiting, producing a value of -1 for the semaphore B continue without waiting, producing a value of 0 for the semaphore C wait until the value of the semaphore has become at least 4 because some other process(es) increased the semaphore's value D wait until the value of the semaphore becomes exactly 4 because some other process(es) increased the semaphore's value

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Chapter9: Managing Linux Processes

Section: Chapter Questions

Problem 9RQ

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Including the initial parent process, how many processes are created by the program shown below? int main() { /* fork a child process */ fork(); fork(); fork(); fork(); int i; for (i=0; i <5; i++) fork();/* fork another child process */ fork(); return 0; }
Including the initial parent process, how many processes are created bythe program shown below? #include <stdio.h>#include <unistd.h>int main(){/* fork a child process */fork();/* fork another child process */fork();/* and fork another */fork();return 0;}
A process spawning or initiating another process is referred to as .a. a child processb. forkingc. branchingd. parenting
A segment of code that cannot be entered and executed by more than one process at the same time is called _________________. deadlock critical section semaphore mutex A process that does not enter a critical section but also prevents other processes from entering is creating _______________. deadlock mutual exclusion lockout starvation Multiple processes that block each other indefinitely from entering a critical section are creating _____________. mutual exclusion starvation deadlock logout Using semaphores. s = 0 initially.Process p1 executes the sequence: P(s); V(s); P(s); V(s);Process p2 executes the sequence: V(s); V(s); P(s); V(s); After both processes terminate, s=________. 3 1 0 2 A monitor is a low-level kernel function that implements a priority queue. True or false Processes can access and modify monitor variables without having to call the monitor's functions. True False The correct monitor implementation of c.wait…
in C++ please create a Priority : -pre-emptive algorithm code: here are information that will help you Tasks: • Lab 4: Process management • Review Process management algorithms Definitions: (in terms for this lab not formal definitions) • Preemptive: When a new process arrives and has a higher priority than the current running process, Then the current running process is paused and put back in the waiting queue, and the new process starts executing. In most systems it will automatically interrupt the current running job when the new job arrives, however some systems use a predetermined interval (a certain number of time units), to check for new jobs. • Non preemptive: Take no action when a process with higher priority arrives,when a new process with a higher precedence arrives current running process need to finish first before the new process goes Oxford definition: Preempt – to take action in order to prevent (an anticipated event) from happening; forestall. • Metric: a metric is…
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Posting it 3rd time Attempt only if you can , do not waste my post. I will do multiple downvotes If resources in a system is not a constraint, what is the total number of processes if we execute the following piece of code: main(){for(;;)fork();} Do not run the code i need proper explanation.
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Only one process may use a resource at a time, resulting in stalemate.

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A	continue without waiting, producing a value of -1 for the semaphore
B	continue without waiting, producing a value of 0 for the semaphore
C	wait until the value of the semaphore has become at least 4 because some other process(es) increased the semaphore's value
D	wait until the value of the semaphore becomes exactly 4 because some other process(es) increased the semaphore's value