# Operating system set 1

By | September 18, 2018

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## UGC-NET/GATE Multiple Choice Questions for Operating System.

 Question 1 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
 A If a user level thread of a process executes a system call, all threads in that process are blocked. B Scheduling is application dependent. C Thread switching doesn't require kernel mode privileges. D The library procedures invoked for thread management in user level threads are local procedures.
 Question 2 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
A multimedia file
 A is same as any other regular file B must be accessed at specific rate C stored on remote server can not be delivered to its client D none of the mentioned
 Question 3 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
A process executes the following segment of code: for(i = 1; i < = n; i++) fork (); The number of new processes created is
 A n B ((n(n + 1))/2) C $2^n-1$ D $3^n-1$
 Question 4 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
The technique, for sharing the time of a computer among several jobs, which switches jobs so rapidly such that each job appears to have the computer to itself, is called.....
 A Time Sharing B Time out C Time domain D Multitasking
 Question 5 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
A series of statements explaining how the data is to be processed is called
 A instruction B compiler C program D interpretor
 Question 6 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
Interconnected configuration of computers describes terminology of
 A Multithreading B Multiprogramming C Multiprocessing D Multischeduling
 Question 7 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
Let the page fault service time be 10 millisecond(ms) in a computer with average memory access time being 20 nanosecond(ns). If one page fault is generated for every 106 memory accesses, what is the effective access time for memory?
 A 21 ns B 23 ns C 30 ns D 35 ns
 Question 8 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
The batch file use the extension
 A .BAT B .DOC C .PRG D .DOS
 Question 9 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
A monitor is characterized by:
 A a set of programmer defined operators B an identifier C the number of variables in it D all of the mentioned
 Question 10 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
The initial program that is run when the computer is powered up is called:
 A boot program B bootloader C initializer D bootstrap program
 Question 11 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
Sequential access method.......... on random access devices.
 A works well B doesnt work well C maybe works well and doesnt work well D none of the mentioned
 Question 12 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
Which command is used to display the subdirectory structure of the currently logged drive and pause the screen display after each screenful of information?
 A TREE B DELTREE/F C DIR | MORE D TREE | MORE
 Question 13 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
In the Zero capacity queue:
 A the queue has zero capacity B the sender blocks until the receiver receives the message C both A and B D the sender keeps sending and the messages dont wait in the queue
 Question 14 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
An admission control scheme assigns a.......... to each type of resource.
 A processor B memory location C resource manager D all of the mentioned
 Question 15 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
You can use print manage window
 A To check status of files in the print queue B To cancel the print job C To interrupt printing D All of the above
 Question 16 (Click on any option to know correct answer. सही उत्तर जानने के लिए किसी भी choice पर क्लिक करें।)
When a file system is mounted over a directory that is not empty:
 A the system may not allow the mount B the system must allow the mount C the system may allow the mount and the directory's existing files will then be made obscure D all of the mentioned
There are 16 questions to complete.
Category: OS