CS604-Midterm
1 / 50
The Home Directory for superuser in Linux and Unix is
2 / 50
The -------------- system call suspends the calling process.
3 / 50
Linux uses ___________ directory to store system configuration files.
4 / 50
The major advantage of multi-programming system is
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The Shortest-Job-First Scheduling algorithm can be
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The process of switching from one process to another is called ---------------.
7 / 50
_____ system call is used to write to a file or FIFO or any other IPC channel.
8 / 50
____ command display the status of a process.
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In Linux directory structure, there is ___________ root directory.
10 / 50
-------- command gives a snapshot of the current processes.
11 / 50
The returned code to the child process after successful fork system call execution is
12 / 50
Preemptive ----------------scheduling is sometimes called shortestremaining-time-first scheduling.
13 / 50
Hardware provide basic computing resource.
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Physical memory is broken down into fixed-sized blocks, called----------- and Logical memory is divided into blocks of the same size, called -----------
15 / 50
Batch programs are usually _________ programs.
16 / 50
The critical section problem can be solved by the following except
17 / 50
The bottom-up view is that operating system is a resource manager who manages the hardware and software resources in the computer system.
18 / 50
rm and [r]mkdir commands are used to _____________ directory.
19 / 50
You can display the contents (names of files and directories) of a directory in UNIX/Linux directory structure with the --------------- command.
20 / 50
/opt is used for storage of large applications.
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The Operating system is a layer of software between _________ and ___________.
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A parent process calling __________ system call will be suspended until children process terminates.
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Binary semaphores are those that have only two values---------
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In Unix/ Linux, by default the standard output file is attached to the ___________
25 / 50
____ command gives a snapshot of the current processes.
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________________ is an integer variable accessible through wait and signal which are atomic operations.
27 / 50
The scheduling of ______ are done by the operating system.
28 / 50
DOS is single user operating system.
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The priority of a process can be changed using ___________ command.
30 / 50
Operating system enables the user to use the Hardware Resources.
31 / 50
Cooperating processes never share any data, code, memory or state.
32 / 50
If a system is not in a safe state, there can be No deadlocks.
33 / 50
A process consists of __________
34 / 50
Cache is non-volatile memory.
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The basic purpose of ________________is to help the users to utilize the hardware resources for completing different tasks in a simplified manner
36 / 50
Bounded Buffer is a buffer of ____________ size
37 / 50
The interval from the time of submission to the time of completion is the ______
38 / 50
What do we name to an address that is loaded into the memory-address register of the memory?
39 / 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.
40 / 50
Files that start with a -------- in UNIX/Linux directory structure are known as hidden files .
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Banker‟s algorithm is used for ________________
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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.”
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The main characteristic of a Real time system is
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OS helps manages the following except
45 / 50
Preventing a condition of ________ to happen, deadlocks can be prevented to happen.
46 / 50
Time interval when the I/O Devices are accessed is known as --------.
47 / 50
The execution of critical sections must NOT be mutually exclusive
48 / 50
In indirect inter process communication, a sender ________ mention the name of the recipient.
49 / 50
Taking the CPU from one process and giving the CPU to another process is termed as
50 / 50
_______ is also called Swapper.
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