CS604-Midterm
1 / 50
Command-line interpreter is also called __________ in some operating systems.
2 / 50
Each page is a power of -------- bytes long in paging scheme.
3 / 50
An absolute pathname starts with the root directory (/) and a relative pathname starts with your home directory.
4 / 50
___________ is a piece of code in a cooperating process in which the process may updates shared data (variable, file, database, etc.).
5 / 50
In Unix/ Linux, by default the standard output file is attached to the ___________
6 / 50
The -------------- system call suspends the calling process.
7 / 50
A process is said to be in critical section if it executes code that manipulates shared data
8 / 50
I/O instructions are Privileged Instructions.
9 / 50
In indirect inter process communication, a sender_____mention the name of the recipient.
10 / 50
A system call________
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User mode can run the Privileged instructions.
12 / 50
The process of switching from one process to another is called ---------------.
13 / 50
In Linux directory structure, there is ___________ root directory.
14 / 50
Physical memory is broken down into fixed-sized blocks, called----------- and Logical memory is divided into blocks of the same size, called -----------
15 / 50
In ________addressing, the recipient is not required to name the sender.
16 / 50
The ________ requires that once a writer is ready, that writer performs its write as soon as possible , if a writer waiting to access the object, no new readers may start reading.
17 / 50
Which of the following is correct definition for wait operation?
18 / 50
In ---------addressing, the recipient is not required to name the sender.
19 / 50
/opt is used for storage of large applications.
20 / 50
You can create a threads by using the pthread_create() call.
21 / 50
You can use the ---------command in UNIX to create a directory.
22 / 50
In Layered Approach of OS, the Layer highest Layer is User Interface layer.
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When process opens its first file explicitly it will get descriptor number ______
24 / 50
The main characteristic of a Real time system is
25 / 50
_________________ scheduling allows a process to move between queues.
26 / 50
The Purpose of Operating System is to generate Executable Programs and to _______ them.
27 / 50
A condition where a set of blocked processes each holding a resource and waiting to acquire a resource held by another process in the set is termed as ________.
28 / 50
POSIX is a standard developed by ANSI
29 / 50
The basic purpose of ________________is to help the users to utilize the hardware resources for completing different tasks in a simplified manner
30 / 50
Linux uses ___________ directory to store system configuration files.
31 / 50
A major problem with priority scheduling algorithms is ______.
32 / 50
The execution of critical sections must NOT be mutually exclusive
33 / 50
I MB or 1 megabyte is equivalent to----
34 / 50
The performance of Round Robin algorithm does NOT depends heavily on the size of the time quantum.
35 / 50
_____________ is a preemptive scheduling algorithm.
36 / 50
A time sharing system is
37 / 50
Each process must first request permission to enter its critical section. The section of code implementing this request is called the _____
38 / 50
DOS is single user operating system.
39 / 50
_____________ is the basis of queuing theory which is branch of mathematics used to analyze systems involving queues and servers.
40 / 50
The priority of a process can be changed using ___________ command.
41 / 50
A semaphore that cause Busy-Waiting is termed as .
42 / 50
In Resource Allocation Graph, A _______ Pi →Rj indicates that process Pi may request resource Rj at some time in the future.
43 / 50
In indirect inter process communication, a sender ________ mention the name of the recipient.
44 / 50
Mkfifo() is a _______.
45 / 50
The following is NOT a classical problem of synchronization
46 / 50
An operating system is a control program that manages the execution of user programs to prevent errors and improper use of a computer.
47 / 50
If your processor does not have two slots empty in Per Process File Descriptor Table, then your _________ system call will fail.
48 / 50
The returned code to the child process after successful fork system call execution is
49 / 50
We can install and run multiple OS by using VMWare.
50 / 50
Operating System provides services such as Managing Primary and Secondary Storage, Processes and Allowing user to manage his/her files and directories.
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