CS604-Midterm
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__________ displays information about the top processes.
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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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Preventing a condition of ________ to happen, deadlocks can be prevented to happen.
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In Unix/ Linux, by default the standard output file is attached to the ___________
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_____________ is a preemptive scheduling algorithm.
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______scheduler selects the process from the job pool and put them in main memory.
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n-process critical section problem can be solved by using
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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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________ determines What will be done.
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The scheduling of ______ are done by the operating system.
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Starvation is infinite blocking caused due to unavailability of resources.
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--------------command to resume the execution of a suspended job in the foreground
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Which of the following is NOT a Hardware Resource.
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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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The major advantage of multi-programming system is
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Binary semaphores are those that have only two values---------
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The hardware mechanism that enables a device to notify CPU is called an -------------
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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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Which register holds the smallest legal physical memory address for a process?
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The number of processes completed per unit time is called ___________.
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____ command display the status of a process.
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Banker‟s algorithm is used for ________________
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In Linux directory structure, there is ___________ root directory.
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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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-------- command gives a snapshot of the current processes.
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IPC provides a mechanism to allow processes to communicate and to synchronize their actions without sharing the same__________
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A time sharing system is
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Operating system enables the user to use the Hardware Resources.
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OS helps manages the following except
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You can use the ---------command in UNIX to create a directory.
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Shared libraries and kernel modules are stored in directory
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Round Robin algorithm is similar to ____________ scheduling but preemption is added to switch between processes.
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The main characteristic of a Real time system is
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The returned code to the child process after successful fork system call execution is
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In ________ communication the process which wants to communicate with the other process must explicitly name the recipient and the sender.
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User Goal of OS is that It easy to use, reliable, safe and fast.
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In indirect inter process communication, a sender ________ mention the name of the recipient.
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Which of the following is correct definition for wait operation?
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User mode can run the Privileged instructions.
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We can install and run multiple OS by using VMWare.
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The -------------- system call suspends the calling process.
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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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Taking the CPU from one process and giving the CPU to another process is termed as
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What do we name to an address that is loaded into the memory-address register of the memory?
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The manual pages can be read in Linux using ____ command.
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A major problem with priority scheduling algorithms is ______.
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Files that start with a -------- in UNIX/Linux directory structure are known as hidden files .
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You can terminate a foreground process by pressing --------------
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