2025 D686 Pre-Assessment Operating Systems for Computer
Scientists Complete 60 Questions and Correct Answers /
WGU D686 Latest Pre-Assessment Exam 2025-2026
How are files organized in a computer system using structures that translate file
names into control blocks for efficient file management?
File directories
3 multiple choice options
How are directories structured to facilitate file organization and accessibility,
ranging from basic setups to intricate arrangements with nested folders?
Folder hierarchy
3 multiple choice options
What is the primary concern when handling data in computer systems, focusing on
ensuring the data is dependable and secure?
Integrity
3 multiple choice options
What does the command less do in Linux?
Views the command output one screen at a time
3 multiple choice options
What is the function of the top command in Linux?
Shows active processes and system resource usage
3 multiple choice options
Why is dynamic loading of device drivers beneficial for an operating system?
It improves the system's ability to detect and manage hardware changes without
rebooting.
3 multiple choice options
Which component manages I/O devices?
pg. 1
, Controller
3 multiple choice options
A method where a thread retains a core until it terminates or enters the waiting
state
3 multiple choice options
What is the effect of a very large time quantum in round-robin scheduling?
It behaves like first-come, first-served (FCFS) scheduling.
3 multiple choice options
In round-robin scheduling, how is the ready queue treated?
As a circular queue
3 multiple choice options
A system administrator is examining a resource-allocation graph to understand
how processes and resources interact in a multi-tasking environment. The graph
includes various points that represent the system's components.
How can the information represented by the nodes in this resource-allocation graph
help the system administrator manage resources and detect potential deadlocks?
They show dependencies between processes and resources, helping to identify and
prevent potential deadlocks.
3 multiple choice options
The system administrator notices that during peak usage, some processes consume
more memory and storage than others, leading to performance issues across the
system. To address the problem, the administrator needs to investigate which
component of the operating system is managing the distribution of these system
capabilities.
Which component should the administrator examine to correct the imbalance in
system performance?
Resource manager
1 multiple choice option
pg. 2
Scientists Complete 60 Questions and Correct Answers /
WGU D686 Latest Pre-Assessment Exam 2025-2026
How are files organized in a computer system using structures that translate file
names into control blocks for efficient file management?
File directories
3 multiple choice options
How are directories structured to facilitate file organization and accessibility,
ranging from basic setups to intricate arrangements with nested folders?
Folder hierarchy
3 multiple choice options
What is the primary concern when handling data in computer systems, focusing on
ensuring the data is dependable and secure?
Integrity
3 multiple choice options
What does the command less do in Linux?
Views the command output one screen at a time
3 multiple choice options
What is the function of the top command in Linux?
Shows active processes and system resource usage
3 multiple choice options
Why is dynamic loading of device drivers beneficial for an operating system?
It improves the system's ability to detect and manage hardware changes without
rebooting.
3 multiple choice options
Which component manages I/O devices?
pg. 1
, Controller
3 multiple choice options
A method where a thread retains a core until it terminates or enters the waiting
state
3 multiple choice options
What is the effect of a very large time quantum in round-robin scheduling?
It behaves like first-come, first-served (FCFS) scheduling.
3 multiple choice options
In round-robin scheduling, how is the ready queue treated?
As a circular queue
3 multiple choice options
A system administrator is examining a resource-allocation graph to understand
how processes and resources interact in a multi-tasking environment. The graph
includes various points that represent the system's components.
How can the information represented by the nodes in this resource-allocation graph
help the system administrator manage resources and detect potential deadlocks?
They show dependencies between processes and resources, helping to identify and
prevent potential deadlocks.
3 multiple choice options
The system administrator notices that during peak usage, some processes consume
more memory and storage than others, leading to performance issues across the
system. To address the problem, the administrator needs to investigate which
component of the operating system is managing the distribution of these system
capabilities.
Which component should the administrator examine to correct the imbalance in
system performance?
Resource manager
1 multiple choice option
pg. 2
