CS604-Midterm
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The bottom layer in the layered approach of Operating System is-----------
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Binary semaphores are those that have only two values---------
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All threads within a process share the ________ address space.
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The number of processes completed per unit time is called ___________.
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First _______ entries in Per Process File Descriptor Table are used as soon as the process is created.
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The Home Directory for superuser in Linux and Unix is
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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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The priority of a process can be changed using ___________ command.
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The interval from the time of submission to the time of completion is the ______
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You can use the ---------command in UNIX to create a directory.
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-------- command gives a snapshot of the current processes.
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Shared libraries and kernel modules are stored in 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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This condition is known 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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In Unix/ Linux, by default the standard output file is attached to the ___________
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The major advantage of multi-programming system is
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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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In Unix/ Linux, by default the standard input file is attached to the ___________
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Operating System is the Manager of Hardware Resources.
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Progress and Bounded Waiting are some of the characteristics to solve the critical section problems.
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Which of the Following is not an Operating System.
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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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I/O instructions are Privileged Instructions.
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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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A parent process calling __________ system call will be suspended until children process terminates.
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The procedure “The time at which the process finished working MINUS the arrival time of the process MINUS CPU burst for that process” will help calculate the _________.
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If the system can allocate resources to each process in some order and still avoid a deadlock then it said to be in ______ state.
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________________ is an integer variable accessible through wait and signal which are atomic operations.
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OS helps manages the following except
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____ command display the status of a process.
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The scheduling of ______ are done by the operating system.
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Command-line interpreter is also called __________ in some operating systems.
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In ________addressing, the recipient is not required to name the sender.
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A major problem with priority scheduling algorithms is ______.
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Mach, MacOS X Server, QNX, OS/2 and Windows NT are examples of OS Based on ______.
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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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In indirect inter process communication, a sender_____mention the name of the recipient.
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Files that start with a -------- in UNIX/Linux directory structure are known as hidden files .
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__________ directory includes essential system boot files including the kernel image.
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If a system is not in a safe state, there can be No deadlocks.
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_________buffer places no practical limit on the size of the buffer
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command displays the contents of current working directory.
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Time interval when the I/O Devices are accessed is known as --------.
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Managing Secondary Storage Involves all of the Following except
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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 -------------- system call suspends the calling process.
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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.
50 / 50
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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