- Study guides, Class notes & Summaries

WGU C191 Chapter 4-6 Operating Systems Learning Checks Exam Questions with complete Answers 2024/2025 What is the primary goal in scheduling interactive processes? - correct answer It is to respond promptly to each input. Consequently, they must time-share the CPU using preemptive scheduling to give each process a chance to make progress in a timely manner. Time quantum (Q) - correct answer It is a small amount of time (typically 10 to 100 milliseconds) during which a process is allowed to...

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7 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Pre-Assessment Proficiency knowledge test Exam Questions and certified Answers 2024/2025 Which features are included in the Trace tool? a) Process match, analyzer, and loader b) Resource-using processes, network statistics, and editor c) Memory activation, I/O monitor, and execution d) Compiler, providers of probes, and consumers - correct answer d) Compiler, providers of probes, and consumers What is the difference between cooperative and preemptive scheduling? a) Cooper...

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17 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Programmers Operating Systems Competency study guide Exam test questions with approved Answers 2024/2025 Logical Formatting - correct answer the creation of a file system. Network Attached Storage (NAS) - correct answer A special-purpose storage system that is accessed remotely over a data network. Solid State Disk (SSD) - correct answer Utilizes non-volatile memory (DRAM) to behave like a traditional disk drive but utilizes no moving parts. Has no latency or seek times. Fil...

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31 pages

Written in 2024/2025

Grade A+

KieranKent55

Bundle for WGU C191 Exams with Verified Solutions 2024 | 2025. Actual tests, modules, pre-assessment, full study set, operating systems for programmers, wiley engage module

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8 items

AdelineJean

WGU C191 - Module 5 Post Quiz | Questions and Verified Solutions Latest Update In the UNIX operating system, a domain is associated with the ____. - Answer -user The most common method used by attackers to breach security is ____. - Answer -masquerading In MULTICS, the protection domains are organized in a _____. - Answer -ring structure A code segment that misuses its environment is called ____. - Answer -Trojan horse In an access matrix, the ____ right allows a process to change the entr...

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3 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 Exam Study | 60 Questions and Verified Solutions 2024 What is the role of the OS? - Answer -To manage a computer's hardware Which OS service provides functions that are helpful to the user? - Answer -Program execution Which OS service provides functions that are helpful to the user? - Answer -Program execution Which system call is used for device manipulation? - Answer -ReadConsole() Which system calls can be grouped under the category of process controls? - Answer -Allocate, fre...

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4 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 Pre Assessment | 60 Questions and Verified Solutions 2024 What is an operating system (OS)? Software that runs on bare hardware Which type of CPU instruction sets are supported by the CPU user mode? Only non-privileged What are two locations where firmware can be stored? Choose 2 answers. Dynamic random-access memory (DRAM), Flash memory Which generation of computers were large-scale integrated circuits used to develop personal computers for desktop and laptop operating systems...

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7 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 Full Study Set | 220 Questions and Correct Solutions Latest Update What is the role of the OS? - Answer -To manage a computer's hardware Which OS service provides functions that are helpful to the user? - Answer -Program execution Which OS service provides functions that are helpful to the user? - Answer -Program execution Which system call is used for device manipulation? - Answer -ReadConsole() Which system calls can be grouped under the category of process controls? - Answer -...

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15 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 Module 2 Study Guide | 230 Questions and Correct Solutions 2024 Update Temporary data such as function parameters, return addresses, and local variables. - Answer -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 ...

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23 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 Operating Systems for Programmers - Pre Assessment | 60 Questions and Correct Solutions 2024 What is a valid process state? - Answer -Waiting What are two valid components of a process control block (PCB) - Answer -The process counter; The process state What is the difference between kernel and user threads? - Answer -Kernel threads are directly managed by the operating system, whereas user threads are managed without kernel support. Which advantage does short-term scheduling ha...

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4 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 - Wiley Engage Module 2: Process Management | Questions and Correct Solutions Latest Update The _____________ refers to the number of processes in memory. - Answer -degree of multiprogramming Windows uses the ____. - Answer -one-to-one model What is the numeric priority of a Windows thread in the HIGH_PRIORITY_CLASS with ABOVE_NORMAL relative priority? - Answer -14 Signals can be emulated in windows through ____. - Answer -asynchronous procedure calls The first readers-writers ...

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4 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 - Module 4 Post Quiz | Questions and Correct Solutions 2024 The surface of a magnetic disk platter is divided into ____. - Answer -tracks A(n) ____ file is a sequence of functions. - Answer -source Transfers between memory and disk are performed a ____. - Answer -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. - Answer -control On media that uses constant linear velocity, the ____. - Answer -density...

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3 pages

Written in 2023/2024

Grade A+

AdelineJean

WGU C191 - Wiley Engage Module 5: Protection and Security | Questions and Correct Solutions 2024 Which of the following is true of the Java programming language in relation to protection? - Answer - 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? - Answer -lock-key The ____ implementation of an acces...

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2 pages

Written in 2023/2024

Grade A+

AdelineJean

Package deal information:: WGU C191 MODULE 1-5 Exams and Pre- Assessment Questions with Complete Solution.

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8 items

DigitalStudyHub

OS A program that manages the computers hardware an provides the environment in which programs are executed - its a resource allocator and control program CPU The processor that performs the computations I/O devices Items such as the terminal, disks, video board, printer, network card key are all considered one of these Main Memory This contains data and programs used by the CPU System bus This is the communication medium between CPU, memory and peripherals kernel the one program running...

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17 pages

Written in 2023/2024

Grade A+

DigitalStudyHub

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 Switch ...

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29 pages

Written in 2023/2024

Grade A+

DigitalStudyHub

Magnetic disks What is the most common secondary storage? Transfer rate The rate at which data flow between drive and computer Positioning time (random-access time) Time to move disk arm to desired cylinder (seek time) and time for desired sector to rotate under the disk head (rotational latency) Head crash Results from disk head making contact with the disk surface (it's bad) EIDE, ATA, SATA, USB, Fiber Channel, SCSI, SAS, Firewire What are examples of I/O busses? Host controller Uses ...

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18 pages

Written in 2023/2024

Grade A+

DigitalStudyHub

Network Attached Storage (NAS) A storage made available over a network rather than over a local connection (such as a bus) - NFS and CIFS are common protocols - Implemented via remote procedure calls (RPCs) - SCSI protocol uses IP network to carry the SCSI protocol Socket A connection point via which an OS communicates with a device PCI bus The common system bus connecting the process-memory subsystem to fast devices Interrupt The hardware mechanism that enables a device to notify the CPU...

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26 pages

Written in 2023/2024

Grade A+

DigitalStudyHub

goals of protection ensure that each object is accessed correctly and only by those processes that are allowed to do so. guiding principle of protection - Programs, users and systems should be given just enough privileges to perform their tasks - principle of least privilege access rights where rights-set is a subset of all valid operations that can be performed on the object domain set of access-rights system has two domains user and supervisor UNIX domain system - domain: user-i...

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14 pages

Written in 2023/2024

Grade A+

DigitalStudyHub

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 ave...

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6 pages

Written in 2023/2024

Grade A+

DigitalStudyHub