CS604-Midterm
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In Linux directory structure, there is ___________ root directory.
2 / 50
The main characteristic of a Real time system is
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____ is a virtual directory in Linux and Unix.
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___________ is a solution to the problem of indefinite blockage of low-priority processes.
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The Operating system is a layer of software between _________ and ___________.
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The process of switching from one process to another is called latency.
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The number of processes completed per unit time is called ___________.
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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 -----------
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The priority of a process can be changed using ___________ command.
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Current working directory can be accessed using --------- Command.
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In ________addressing, the recipient is not required to name the sender.
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The process id returned to the child process after successful fork system call execution is _____________.
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Progress and Bounded Waiting are some of the characteristics to solve the critical section problems.
14 / 50
Linux Treats Devices as Files.
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Which of the following is NOT a Hardware Resource.
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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.).
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Each process must first request permission to enter its critical section. The section of code implementing this request is called the _____
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A major problem with priority scheduling algorithms is ______.
19 / 50
Taking the CPU from one process and giving the CPU to another process is termed as
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Mach, MacOS X Server, QNX, OS/2 and Windows NT are examples of OS Based on ______.
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When process opens its first file explicitly it will get descriptor number ______
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An absolute pathname starts with the root directory (/) and a relative pathname starts with your home directory.
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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.
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In Unix/ Linux, by default the standard output file is attached to the ___________
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Swapper is also termed as Short term scheduler.
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______scheduler selects the process from the job pool and put them in main memory.
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We can install and run multiple OS by using VMWare.
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Time interval when the I/O Devices are accessed is known as --------.
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The _______ are used for communication between related or unrelated processes on the same system or unrelated processes on different systems.
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Each page is a power of -------- bytes long in paging scheme.
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The nice value helps in assigning ______ to a process.
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The process of switching from one process to another is called ---------------.
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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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A_____ is an abstract key for accessing a file.
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The major advantage of multi-programming system is
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The -------------- system call suspends the calling process.
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_________ command to resume the execution of a suspended job in the foreground
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Linux uses ___________ directory to store system configuration files.
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A Process that has finished working, as well as its parent process has also finished its execution. In this state the process A will be called as _________ process.
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____ command gives a snapshot of the current processes.
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In Layered Approach of OS, the Layer highest Layer is User Interface layer.
42 / 50
Managing Secondary Storage Involves all of the Following except
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------------has a hierarchical file system structure.
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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
45 / 50
rm and [r]mkdir commands are used to _____________ directory.
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Which of the Following is not an Operating System.
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A process consists of __________
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If the fork system call fails, it returns
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Users are the People, machines or computers that uses the Hardware resources.
50 / 50
In Resource Allocation Graph, A _______ Pi →Rj indicates that process Pi may request resource Rj at some time in the future.
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