CS604-Midterm
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__________ commands in Linux is used to copy file
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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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Preemptive ----------------scheduling is sometimes called shortestremaining-time-first scheduling.
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You can display the contents (names of files and directories) of a directory in UNIX/Linux directory structure with the --------------- command.
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The interval from the time of submission to the time of completion is the ______
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/opt is used for storage of large applications.
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The scheduling of ______ are done by the operating system.
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In Linux directory structure, there is ___________ root directory.
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An operating system is a control program that manages the execution of user programs to prevent errors and improper use of a computer.
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/usr/X11R6 is used by the X Window System.
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Mach, MacOS X Server, QNX, OS/2 and Windows NT are examples of OS Based on ______.
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The major advantage of multi-programming system is
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DOS is single user operating system.
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The Operating system is a layer of software between _________ and ___________.
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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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-------- command gives a snapshot of the current processes.
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Taking the CPU from one process and giving the CPU to another process is termed as
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The priority of a process can be changed using ___________ command.
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The number of processes completed per unit time is called ___________.
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Starvation is infinite blocking caused due to unavailability of resources.
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Linux is a version of _______ operating system.
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_________________ scheduling allows a process to move between queues.
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The priorities of processes in the __________ group remain fixed.
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The bottom layer in the layered approach of Operating System is-----------
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__________ displays information about the top processes.
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The main characteristic of a Real time system is
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The nice value helps in assigning ______ to a process.
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If your processor does not have two slots empty in Per Process File Descriptor Table, then your _________ system call will fail.
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The condition where a set of blocked processes each holding a resource and waiting to acquire a resource held by another process in the set, is termed as ________.
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------------has a hierarchical file system structure.
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rm and [r]mkdir commands are used to _____________ directory.
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A_______ is an integer variable that, apart from initialization is accessible only through two standard atomic operations: wait and signal.
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A time sharing system is
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Cache is non-volatile memory.
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The hardware mechanism that enables a device to notify CPU is called an -------------
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Current working directory can be accessed using --------- Command.
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________________ is an integer variable accessible through wait and signal which are atomic operations.
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In Layered approach of OS, Lowest Layer is known as ________.
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Cooperating processes never share any data, code, memory or state.
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POSIX is a standard developed by ANSI
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Preventing a condition of ________ to happen, deadlocks can be prevented to happen.
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You can use the rm file1 command to __________ file1
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_________buffer places no practical limit on the size of the buffer
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_____ system call is used to write to a file or FIFO or any other IPC channel.
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User Goal of OS is that It easy to use, reliable, safe and fast.
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The time it takes for the dispatcher to stop one process and start another running is known as the-----------.
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The bottom-up view is that operating system is a resource manager who manages the hardware and software resources in the computer system.
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A solution to the critical section problem must satisfy the following requirements
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--------------command to resume the execution of a suspended job in the foreground
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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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