- Study guides, Class notes & Summaries

WGU C191 EXAM 2025 QUESTIONS AND ANSWERS GRADED A+

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22 pages

Written in 2024/2025

Grade A+

LiamJones

WGU - C191 Exam Study Questions and Answers 100% Pass 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, free memor...

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8 pages

Written in 2024/2025

Grade A+

SophiaBennett

WGU C191 Test Exam Review Questions with all Answers verified for accuracy Updated 2024/2025 A _________________ saves the state of the currently running process and restores the state of the next process to run. - correct answer context switch A process may transition to the Ready state by which of the following actions? - correct answer Completion of an I/O event Awaiting its turn on the CPU Newly-admitted process A blocking send() and blocking receive() is known as a(n) ___________...

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15 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Module 3: Memory Management Preliminary Test Exam Questions along with Certified Answers Latest updates 2024/2025 Consider a logical address with a page size of 8 KB. How many bits must be used to represent the page offset in the logical address? - correct answer 13 ________ allows the parent and child processes to initially share the same pages, but when either process modifies a page, a copy of the shared page is created. - correct answer Copy-on-write Consider a logical addr...

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59 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Indispensable Study Assessment Guide Exam Questions with all Questions Accurately Answered Updated 2024/2025 How is the array of logical blocks mapped onto the hard disk? - correct answer onto the sectors of the disk sequentially What is the average latency of a typical hard disk? - correct answer 3 milliseconds What is the rate at which data flows from the hard disk to the computer? - correct answer Transfer What is a benefit of creating a separate raw partition for use as ...

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12 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Home Study Thorough Review and Complete Answers Ace your first Attempt Updated 2024/2025 Interrupt - correct answer A hardware signal indicating that the hardware needs servicing (or attention). Blocking: I/O - correct answer When an application issues a blocking system call, the execution of the application is suspended. The application is moved from the operating system's run queue to a wait queue. After the system call completes, the application is moved back to the run queu...

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16 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Practice Study Guide Questions with Distinction level Marking scheme version 2024/2025 Interrupt handler - correct answer kernel function, invoked whenever an interrupt occurs determines the cause of the interrupt and invokes the appropriate kernel function to provide the response Moore's Law - correct answer number of transistors in an integrated circuit doubles every two years 1st generation computers - correct answer Vacuum tubes OS type: none Characteristics: pr...

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10 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Module 4 Post Assessment Actual Final Exam Questions with all Questions Accurately Answered 2024/2025 to use a disk to hold files - correct answer the OS needs to record its own data structures on the disk using partition, logical formatting, or clusters partitions - correct answer partition the disk into one or more groups of cylinders, each treated as a logical disk logical formatting - correct answer "making a file system" clusters - correct answer to increase effic...

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34 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU c191 chapter one Fundamentals of operating system Knowledge test Exam Toolkit Questions and Verified Marking Scheme 2024/2025 System Call - correct answer A request from an application to the OS for a service. It's implemented as a library function that prepares parameters and issues a supervisor call. Supervisor Call - correct answer -known as Kernel call- a privileged instruction that transfers control to a specific location within the OS kernel. It acts as the interface between t...

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8 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Module 5 Protection and Security Study guide Exam Questions with Key Marking Scheme Updated 2024/2025 A fragment of code embedded in a legitimate program - correct answer Virus In the UNIX operating system, a domain is associated with the ____. - correct answer user The most common method used by attackers to breach security is ____. - correct answer masquerading A code segment that misuses its environment is called ____. - correct answer a Trojan horse In an access matri...

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20 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Module 2 Process Management Key Exam Guide Questions and Integral Marking Scheme version 2024/2025 When priority scheduling results in a process that is ready to run but waiting for the CPU - correct answer Starvation The scheme by which a many-to-one or many-to-many system schedules user-threads - correct answer PCS The ____ of a process contains temporary data such as function parameters, return addresses, and local variables. - correct answer stack When a child process is...

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49 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Module 1: Introduction to Operating Systems Problem set Exam Questions with all answers Correctly provided Latest 2024/2025 Which of the following statements is incorrect? - correct answer Operating systems provide both command line as well as graphical user interfaces. The two separate modes of operating in a system are - correct answer user mode and kernel mode _____ is/are not a technique for passing parameters from an application to a system call. - correct answer Cache mem...

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22 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 - Chapter 7,8 & 9 Problem set study Exam Questions and Correct Answers Guaranteed Success 2024/2025 advantages of virtual memory - correct answer only part of program needs to be in memory for execution --> logical address space > physical address space allows address spaces to be shared by multiple processes --> less swapping allows pages to be shared during fork (), speeding process creation page fault - correct answer results from the first time there is a refe...

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10 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Exam test preparation Questions and Must have marking scheme Updated version 2024/2025 disk block - correct answer a fixed sequence of bytes on the disk, which can only be accessed as a single unit using low-level read-block and write-block operations Magnetic hard disk - correct answer A magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data. Magnetic Storage Devices - correct answer Includes magnetic tape, floppy disks and hard-d...

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23 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Retest Placement test Exam Questions with complete solutions 2024/2025 Which component is associated with the paging scheme? - correct answer Frames Which solution resolves slow access time to user memory location when implementing paging? - correct answer Using the translation look-aside buffer (TLB) Which component ensures the integrity of memory in a paged environment? - correct answer Protection bits What is a non-self-modifying code that never changes during execution? ...

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12 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Final Competency Certification Study Guide Exam Questions with Certified for Accuracy Answers 2024/2025 Registry - correct answer This stores and retrieves configuration information Policy - correct answer This determines what must be done. This is always changing. Mechanism - correct answer This determines how to do something. This rarely if ever changes. Monolithic - correct answer What system is the opposite of a smaller chunked, modular type of system? Layered - corre...

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35 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Chapters 10-12 Actual preparation test exam with Thorough and Correct Answers Updated 2024/2025 Operands - correct answer One or more operand registers are used to describe the parameters of the requested operation. The values are written by the CPU prior to starting the operation. Busy - correct answer The register (a 1-bit flag) is set by the controller to indicate whether the device is busy or idle. Status - correct answer The register is set by the controller to indicate the ...

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15 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Chapter 13-15 Preparedness baseline Exam knowledge Questions with Expertly written solution 2024/2025 controller - correct answer A special processor that manages I/O devices. host bus adapter (HBA) - correct answer A device controller installed in a host bus port to allow connection of one or more devices to the host. host controller - correct answer the I/O-managing processors within a computer (e.g., inside a host bus adapter). device controller - correct answer the I/O m...

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7 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU C191 Chapter 10 Mass-storage Systems Study test in depth Examination and 100% correctly verified Solutions Latest version 2024/2025 open file locking - correct answer mediates access to a file (shared or exclusive) mandatory - correct answer access denied depending on locks held and requested advisory - correct answer process can find status of locks and decide what to do internal file structure - correct answer indicated by file type access methods - correct answer sequential...

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10 pages

Written in 2024/2025

Grade A+

KieranKent55

WGU 191 Chapter 7 and 8 on Virtual and Main Memory Exam Review Questions and A Level Marking Scheme Latest 2024/2025 Interrupt driven - correct answer When the CPU does not poll the control bit, but rather gets an interrupt signal Buddy-system/power-of-2-allocator - correct answer Allocates memory from a fixed-size segment consisting of physically contiguous pages via units sized as a power of 2(or rounded up to the next as needed). Buddy - correct answer When a larger memory block is d...

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8 pages

Written in 2024/2025

Grade A+

KieranKent55