CS604-Midterm
1 / 50
Utilities used for system administration (halt, ifconfig, fdisk, etc.) are stored in _____________ directory.
2 / 50
The execution of critical sections must NOT be mutually exclusive
3 / 50
DOS is single user operating system.
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-------- command gives a snapshot of the current processes.
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The scheduling of ______ are done by the operating system.
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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.
7 / 50
n-process critical section problem can be solved by using
8 / 50
A_______ is an integer variable that, apart from initialization is accessible only through two standard atomic operations: wait and signal.
9 / 50
Which register holds the smallest legal physical memory address for a process?
10 / 50
The manual pages can be read in Linux using ____ command.
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The creating process is called a--------------- process while the new processes are called the -------------- of that process
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Operating System provides services such as Managing Primary and Secondary Storage, Processes and Allowing user to manage his/her files and directories.
13 / 50
In ________addressing, the recipient is not required to name the sender.
14 / 50
Bounded Buffer is a buffer of ____________ size
15 / 50
________ scheduling algorithm is sometimes called shortest remaining time first scheduling algorithm.
16 / 50
The process of switching from one process to another is called latency.
17 / 50
The time it takes for the dispatcher to stop one process and start another running is known as the-----------.
18 / 50
In deadlock detection and recovery algorithm, a deadlock exists in the system if and only if the wait for graph contains a _____________
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The number of processes completed per unit time is called ___________.
20 / 50
command displays the contents of current working directory.
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Batch programs are usually _________ programs.
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In Layered approach of OS, Lowest Layer is known as ________.
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The process of switching from one process to another is called ---------------.
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A process consists of __________
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The Shortest-Job-First Scheduling algorithm can be
26 / 50
____ command gives a snapshot of the current processes.
27 / 50
In Unix/ Linux, by default the standard input file is attached to the ___________
28 / 50
A process is said to be in critical section if it executes code that manipulates shared data
29 / 50
__________ directory includes essential system boot files including the kernel image.
30 / 50
Physical memory is broken down into fixed-sized blocks, called----------- and Logical memory is divided into blocks of the same size, called -----------
31 / 50
The major advantage of multi-programming system is
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We can install and run multiple OS by using VMWare.
33 / 50
The nice value helps in assigning ______ to a process.
34 / 50
What do we name to an address that is loaded into the memory-address register of the memory?
35 / 50
copy file1 file2 is an example of ______ OS view.
36 / 50
A major problem with priority scheduling algorithms is ______.
37 / 50
________________ is an integer variable accessible through wait and signal which are atomic operations.
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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.”
39 / 50
Banker‟s algorithm is used for ________________
40 / 50
The hardware mechanism that enables a device to notify CPU is called an -------------
41 / 50
Mkfifo() is a _______.
42 / 50
_________________ scheduling allows a process to move between queues.
43 / 50
A parent process calling __________ system call will be suspended until children process terminates.
44 / 50
Kernel is responsible for scheduling the user level threads.
45 / 50
If your processor does not have two slots empty in Per Process File Descriptor Table, then your _________ system call will fail.
46 / 50
Which of the Following is not an Operating System.
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This condition is known as ______________.
48 / 50
______scheduler selects the process from the job pool and put them in main memory.
49 / 50
/usr/X11R6 is used by the X Window System.
50 / 50
A system call________
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