CS604-Midterm
1 / 50
A semaphore that cause Busy-Waiting is termed as .
2 / 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.
3 / 50
The Home Directory for superuser in Linux and Unix is
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In Resource Allocation Graph, A _______ Pi →Rj indicates that process Pi may request resource Rj at some time in the future.
5 / 50
The execution of critical sections must NOT be mutually exclusive
6 / 50
You can use the ---------command in UNIX to create a directory.
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_____________ is the basis of queuing theory which is branch of mathematics used to analyze systems involving queues and servers.
8 / 50
Files that start with a -------- in UNIX/Linux directory structure are known as hidden files .
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All threads within a process share the ________ address space.
10 / 50
Starvation is infinite blocking caused due to unavailability of resources.
11 / 50
Taking the CPU from one process and giving the CPU to another process is termed as
12 / 50
A pathname is the list of directories separated by _________.
13 / 50
Database, Complier, Video games are examples of ________.
14 / 50
POSIX is a standard developed by ANSI
15 / 50
__________ integer shows the highest priority of a process in CPU scheduling
16 / 50
The major advantage of multi-programming system is
17 / 50
Physical memory is broken down into fixed-sized blocks, called----------- and Logical memory is divided into blocks of the same size, called -----------
18 / 50
Each page is a power of -------- bytes long in paging scheme.
19 / 50
n-process critical section problem can be solved by using
20 / 50
OS helps manages the following except
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User Goal of OS is that It easy to use, reliable, safe and fast.
22 / 50
The address generated by the CPU, after any indexing or other addressing-mode arithmetic, is called a --------address, and the address it gets translated to by the MMU is called a ---------address.
23 / 50
Round Robin algorithm is similar to ____________ scheduling but preemption is added to switch between processes.
24 / 50
If the fork system call fails, it returns
25 / 50
In ________ communication the process which wants to communicate with the other process must explicitly name the recipient and the sender.
26 / 50
Using _________system, we can create a new process in Linux.
27 / 50
__________ displays information about the top processes.
28 / 50
If your processor does not have two slots empty in Per Process File Descriptor Table, then your _________ system call will fail.
29 / 50
-------- command gives a snapshot of the current processes.
30 / 50
The -------------- system call suspends the calling process.
31 / 50
____ is a virtual directory in Linux and Unix.
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In Layered approach of OS, Lowest Layer is known as ________.
33 / 50
Banker‟s algorithm is used for ________________
34 / 50
The bottom-up view is that operating system is a resource manager who manages the hardware and software resources in the computer system.
35 / 50
IPC provides a mechanism to allow processes to communicate and to synchronize their actions without sharing the same__________
36 / 50
________ scheduling algorithm is sometimes called shortest remaining time first scheduling algorithm.
37 / 50
If the system can allocate resources to each process in some order and still avoid a deadlock then it said to be in ______ state.
38 / 50
Operating System is the Manager of Hardware Resources.
39 / 50
You can create a threads by using the pthread_create() call.
40 / 50
Kernel is responsible for scheduling the user level threads.
41 / 50
Operating system enables the user to use the Hardware Resources.
42 / 50
____ command display the status of a process.
43 / 50
The main characteristic of a Real time system is
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___________ is a piece of code in a cooperating process in which the process may updates shared data (variable, file, database, etc.).
45 / 50
The nice value helps in assigning ______ to a process.
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The critical section problem can be solved by the following except
47 / 50
_________ command to resume the execution of a suspended job in the foreground
48 / 50
The bottom layer in the layered approach of Operating System is-----------
49 / 50
A semaphore that cause Busy-Waiting is termed as ___________.
50 / 50
A time sharing system is
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