CS604-Midterm
1 / 50
The interval from the time of submission to the time of completion is the ______
2 / 50
_________________ scheduling allows a process to move between queues.
3 / 50
A semaphore that cause Busy-Waiting is termed as .
4 / 50
Preemptive ----------------scheduling is sometimes called shortestremaining-time-first scheduling.
5 / 50
The number of processes completed per unit time is called ___________.
6 / 50
_________buffer places no practical limit on the size of the buffer
7 / 50
In Resource Allocation Graph, A _______ Pi →Rj indicates that process Pi may request resource Rj at some time in the future.
8 / 50
The Operating system is a layer of software between _________ and ___________.
9 / 50
-------- command gives a snapshot of the current processes.
10 / 50
If the fork system call fails, it returns
11 / 50
The following requirement for solving critical section problem is known as ______. “There exists a bound on the number of times that other processes are allowed to enter their critical sections after a process has made a request to enter its critical section and before that request is granted.”
12 / 50
------------ register contains the size of the process
13 / 50
The creating process is called a--------------- process while the new processes are called the -------------- of that process
14 / 50
An operating system is a control program that manages the execution of user programs to prevent errors and improper use of a computer.
15 / 50
The integer value of ________semaphores can range over an unrestricted integer domain.
16 / 50
The critical section problem can be solved by the following except
17 / 50
Time interval when the I/O Devices are accessed is known as --------.
18 / 50
rm and [r]mkdir commands are used to _____________ directory.
19 / 50
I/O instructions are Privileged Instructions.
20 / 50
The main characteristic of a Real time system is
21 / 50
The bottom layer in the layered approach of Operating System is-----------
22 / 50
If your processor does not have two slots empty in Per Process File Descriptor Table, then your _________ system call will fail.
23 / 50
Which of the following is NOT a Hardware Resource.
24 / 50
The Top-down view is that it is a program that acts as an intermediary between a user of a computer and the computer hardware, and makes the computer system convenient to use.
25 / 50
Operating System provides services such as Managing Primary and Secondary Storage, Processes and Allowing user to manage his/her files and directories.
26 / 50
The -----------scheme is not applicable to a resource allocation system with multiple instances of each resource type.
27 / 50
___________ algorithm is used in Deadlock avoidance.
28 / 50
___________ is a piece of code in a cooperating process in which the process may updates shared data (variable, file, database, etc.).
29 / 50
In Layered approach of OS, Lowest Layer is known as ________.
30 / 50
The time it takes for the dispatcher to stop one process and start another running is known as the-----------.
31 / 50
You can display all of the signals supported by your system, along with their numbers, by using the -----------command
32 / 50
In Unix/ Linux, by default the standard output file is attached to the ___________
33 / 50
_____ system call is used to write to a file or FIFO or any other IPC channel.
34 / 50
User mode can run the Privileged instructions.
35 / 50
Taking the CPU from one process and giving the CPU to another process is termed as
36 / 50
Linux uses ___________ directory to store system configuration files.
37 / 50
Command-line interpreter is also called __________ in some operating systems.
38 / 50
________ scheduling algorithm is sometimes called shortest remaining time first scheduling algorithm.
39 / 50
In deadlock detection and recovery algorithm, a deadlock exists in the system if and only if the wait for graph contains a _____________
40 / 50
/usr/X11R6 is used by the X Window System.
41 / 50
Which register holds the smallest legal physical memory address for a process?
42 / 50
The manual pages can be read in Linux using ____ command.
43 / 50
_____________ determines How to do something.
44 / 50
The bottom-up view is that operating system is a resource manager who manages the hardware and software resources in the computer system.
45 / 50
A_____ is an abstract key for accessing a file.
46 / 50
A semaphore that cause Busy-Waiting is termed as ___________.
47 / 50
Starvation is infinite blocking caused due to unavailability of resources.
48 / 50
A ---------------- (or an exception) is a software-generated interrupt caused either by an error (division by zero or invalid memory access) or by a user request for an operating system service.
49 / 50
Database, Complier, Video games are examples of ________.
50 / 50
Mach, MacOS X Server, QNX, OS/2 and Windows NT are examples of OS Based on ______.
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