WGU C191

What is the role of the OS? a) To build the bootstrap program b) To write to memory c) To develop the kernel d) To manage a computer's hardware - d) To manage a computer's hardware Which OS service provides functions that are helpful to the user? a) Resource allocation b) Program execution c) System calls d) Accounting - b) Program execution Which system call is used for device manipulation? a) ReadConsole() b) Sleep() c) umas() d) CreateFileMapping() e) chmod() - a) ReadConsole...

What is the role of the OS? - To manage a computer's hardware Which OS service provides functions that are helpful to the user? - Program execution Which OS service provides functions that are helpful to the user? - Program execution Which system call is used for device manipulation? - ReadConsole() Which system calls can be grouped under the category of process controls? - Allocate, free memory Which service function is responsible for identifying and correcting exceptions such as the la...

__________ is a set of software frameworks that provide additional services to application developers. - Middleware _____ is not one of the major categories of system calls. - Security If a program terminates abnormally, a dump of memory may be examined by a ____ to determine the cause of the problem. - debugger A microkernel is a kernel ____. - that is stripped of all nonessential components In what way is an operating system like a government? - It creates an environment within which ot...

Temporary data such as function parameters, return addresses, and local variables. - What does a stack contain? 1. The parent continues to execute concurrently with its children. 2. The parent waits until some or all of its children have terminated. 3. The child process is a duplicate of the parent process (it has the same program and data as the parent). 4. The child process has a new program loaded into it. - When a parent creates a child process what are the possibilities? Context Swi...

What is a valid process state? - Waiting What are two valid components of a process control block (PCB) - The process counter; The process state What is the difference between kernel and user threads? - Kernel threads are directly managed by the operating system, whereas user threads are managed without kernel support. Which advantage does short-term scheduling have compared with long-term scheduling? - It takes less time to select a process to execute next. What is considered stable when...

The _____________ refers to the number of processes in memory. - degree of multiprogramming Windows uses the ____. - one-to-one model What is the numeric priority of a Windows thread in the HIGH_PRIORITY_CLASS with ABOVE_NORMAL relative priority? - 14 Signals can be emulated in windows through ____. - asynchronous procedure calls The first readers-writers problem ____. - requires that no reader will be kept waiting unless a writer has already obtained permission to use the shared database...

The surface of a magnetic disk platter is divided into ____. - tracks A(n) ____ file is a sequence of functions. - source Transfers between memory and disk are performed a ____. - block at a time The ____ register of an I/O port can be written by the host to start a command or to change the mode of a device. - control On media that uses constant linear velocity, the ____. - density of bits per track is uniform An interrupt priority scheme can be used to ____. a. allow the most urgent work...

Which of the following is true of the Java programming language in relation to protection? - When a class is loaded, the JVM assigns the class to a protection domain that gives the permissions of that class. Which of the following implementations of the access matrix is a compromise between two other implementations listed below? - lock-key The ____ implementation of an access table consists of sets of ordered triples. - global table A ____ virus changes each time it is installed to avoid ...