CS604-Midterm
1 / 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.
2 / 50
Linux Treats Devices as Files.
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_____________ is the basis of queuing theory which is branch of mathematics used to analyze systems involving queues and servers.
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The main characteristic of a Real time system is
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When process opens its first file explicitly it will get descriptor number ______
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The process of switching from one process to another is called latency.
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The process of holding at least one resource and waiting to acquire additional resources that are currently being held by other processes is known as________.
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The -----------scheme is not applicable to a resource allocation system with multiple instances of each resource type.
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A solution to the critical section problem must satisfy the following requirements
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You can use the rm file1 command to __________ file1
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Current working directory can be accessed using --------- Command.
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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
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Starvation is infinite blocking caused due to unavailability of resources.
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The critical section problem can be solved by the following except
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In Unix/ Linux, by default the standard input file is attached to the ___________
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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.
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The Operating system is a layer of software between _________ and ___________.
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A process consists of __________
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A_____ is an abstract key for accessing a file.
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rm and [r]mkdir commands are used to _____________ directory.
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The correct command for compiling C program named program.c in Linux environment is
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This condition is known as ______________.
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If the fork system call fails, it returns
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_________________ scheduling allows a process to move between queues.
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User mode can run the Privileged instructions.
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A_______ is an integer variable that, apart from initialization is accessible only through two standard atomic operations: wait and signal.
27 / 50
In indirect inter process communication, a sender ________ mention the name of the recipient.
28 / 50
Cache is non-volatile memory.
29 / 50
When a process opens its first file explicitly it will get descriptor number _________
30 / 50
In ________addressing, the recipient is not required to name the sender.
31 / 50
In Unix/ Linux, by default the standard output file is attached to the ___________
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I/O instructions are Privileged Instructions.
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____ command display the status of a process.
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A pathname is the list of directories separated by _________.
35 / 50
OS helps manages the following except
36 / 50
In Resource Allocation Graph, A _______ Pi →Rj indicates that process Pi may request resource Rj at some time in the future.
37 / 50
The performance of Round Robin algorithm does NOT depends heavily on the size of the time quantum.
38 / 50
Which of the following is correct definition for wait operation?
39 / 50
--------------command to resume the execution of a suspended job in the foreground
40 / 50
The Shortest-Job-First Scheduling algorithm can be
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Operating system enables the user to use the Hardware Resources.
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Utilities used for system administration (halt, ifconfig, fdisk, etc.) are stored in _____________ directory.
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Users are the People, machines or computers that uses the Hardware resources.
44 / 50
Binary semaphores are those that have only two values---------
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The process id returned to the child process after successful fork system call execution is _____________.
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Which part of the computer system helps in managing the file and memory management system?
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A process is said to be in critical section if it executes code that manipulates shared data
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_____ system call is used to write to a file or FIFO or any other IPC channel.
49 / 50
The priorities of processes in the __________ group remain fixed.
50 / 50
Linux is a version of _______ operating system.
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