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Self Doubt Context Switching Threads
S1: Context Switching occurs only in kernel mode. :TRUES2: Context Switching in user mode is faster as compared to context switching in kernel mode. : TRUEIf ... which means more time should be taken as compared to CS in kernel mode.
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Theads
True/False :1)Several threads can share same physical address space.2)Several threads can share same virtual address space.
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Threads
The primary difference between process and thread ?(A) The number of I/O requests mode.(B) The amount of overhead associated with creation and context ... (C) The amount of memory allocation(D) The average number of instructions executed
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OS:- Threads
Why threads have less context than process? Context means various attributes that we store in the PCB,so the attributes like state,property,PC,etc.. should be there in both process and thread.So,how thread have less context than process?
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Threads
Threads of a process share(A) global variables but not heap(B) heap but not global variables(C) neither global variables nor heap(D) both heap and global ... files. So global variables it does share bt does it also share heap section?
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threads
Multi-threaded application cannot take advantage of multiprocessing.What does this mean?
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Deadlocks and threads
Which one of the following is false about user threads1. User threads can switch fast since it does noy invoke kernel2.user threads are light weight since they do ... of every user threads ie if it is blocking or run able4.none of these
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Deadlocks and threads
State true or false A program to compute the sum of first 10000 numbers can be divided into 4 sub parts and executed on 4 CPUs using either forks/threads. ... between the 4 subparts are very similar and need not duplicated. A. TrueB. False
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550
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threads and subprocess
I am getting confused with the implementation of threads.....as we know if some task is assigned to process it can divide the task into subprocess and ... why there is need of the concept multithreading? plz explain it clearly if possible
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2 answers
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Self Doubt
Whether the following statement is true or false??"The OS maintains scheduling and accounting information for each thread"
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893
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9 votes
#THREADS
if(fork() && fork()) {fork();}if(fork()||fork()) {fork();fork();}printf("XYZ");How many time XYZ gets printed ?
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#threads
int main() { if(fork() == 0) printf("GATE2018"); if(fork() == 0) printf("GATE2018"); }How many times GATE2018 printed?
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Galvin 4.5
Can a multithreaded solution using multiple user-level threads achievebetterperformance on amultiprocessor system than on a single-processorsystem?
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542
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1 answers
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ISRO 2011 -ECE Operating System
Which of the following is not true regarding a preemptive kernela. If a high priority thread becomes ready to run, low priority thread is ... . There are special demands on communication between threads and handling common resources
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GATE CSE 2017 Set 1 | Question: 18
Threads of a process shareglobal variables but not heapheap but not global variablesneither global variables nor heapboth heap and global variables
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GATE CSE 2017 Set 2 | Question: 07
Which of the following is/are shared by all the threads in a process?Program counterStackAddress spaceRegisters(I) and (II) only(III) only(IV) only(III) and (IV) only
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Threading in OS [GateBook]
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MadeEasy Subject Test: Operating System - Threads
Consider the following statements.1. A thread running in critical section never get context switched.2. Hardware access to devices is usually available in user ... only possible in Kernel mode.Which of the above statements are incorrect?
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can user level threads be scheduled on different processors in a multi-processor system.??
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user and kernel mdoe
can anyone tell what are different activities that are performed in kernel modeuser modehow to change frm user mode to kernel mode and vice-versa,,
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pthreads
Suppose you have an array A of 4 numbers and you have 2 threads. how will you perform a cumulative sum of numbers and store it in array B using parallel computation and synchronization. (B[1]=A[1], B[2]=A[1] + A[2],.. so on
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UGC NET CSE | August 2016 | Part 3 | Question: 42
Java uses threads to enable the entire environment to be ______.SymmetricAsymmetricSynchronousAsynchronous
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User|Kernel threads
Assume that process A has 3 user level threads and process B has 4 kernel-level threads. Consider while process A is running in CPU, process B is waiting in ready ... .C. All B threads are blocked and A threads are not blocked.D. None.
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Process and Thread
If a process has multiple threads and it calls a fork() then will the child process be multi-threaded also or it will have only one thread?
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UGC NET CSE | December 2013 | Part 3 | Question: 75
Possible thread states in Windows 2000 operating system include:Ready, running and waitingReady, standby, running, waiting, transition and ... waiting, transition and terminatedStandby, running, waiting, transition and terminated
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Thread
Q:which of the following can run in parallel on different processors in a multiprocessorsa)user level thread b)kernel level thread c)processesd) processes and kernel level thread
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UGC NET CSE | December 2012 | Part 3 | Question: 32
A thread is a light weight process.In the above statement, weight refers totimenumber of resourcesspeedall of the above
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ISRO2008-60
Overlayingrequires use of a loaderallows larger programs, but requires more effortis most used on large computersis transparent to the user
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What is executed by the processor? What is in ready queue? Process or thread?
Thread is a light-weight sub-process. If so, what is executed by the processor? Process or thread? If it is thread, why do we say that ready queue has ... is very small in size? What is actually the difference between these two?Thank you.
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GATE IT 2004 | Question: 14
Which one of the following is NOT shared by the threads of the same process ?StackAddress SpaceFile Descriptor TableMessage Queue
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