OPERATING SYSTEMS LATEST EXAM 2025/2026 COMPLETE
STUDY QUESTIONS WITH CORRECT VERIFIED ANSWERS
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What is paged memory management? - Answer>>> A memory management scheme that
eliminates the need for contiguous allocation of physical memory and thus eliminates the
problems of fitting varying sized memory chunks onto the backing store.
What is memory management in the context of an operating system? - Answer>>> Memory
management involves allocating system memory to processes and programs while preventing
conflicts and optimizing performance.
How do programs compete for resources? - Answer>>> Programs take turns using the CPU and
compete for an opportunity to use input/output devices.
Explain today's updated batch processing. - Answer>>> Today's batch processing systems can
handle jobs more dynamically, allowing for better resource management and scheduling.
What are some jobs that still lend themselves to batch processing? - Answer>>> Jobs such as
payroll processing, data analysis, and report generation are examples that still use batch
processing.
How does the Elevator (SCAN) disk scheduling algorithm work? - Answer>>> It minimizes
total seek time by scanning in both directions across the disk.
What is the role of an operating system (OS)? - Answer>>> An OS manages system resources
and user interactions, coordinating memory management, process management, and CPU
scheduling.
What is the role of disk scheduling in relation to file systems? - Answer>>> Disk scheduling
optimizes the sequence of read and write operations on storage devices, enhancing data retrieval
efficiency.
, How does disk scheduling improve overall system performance? - Answer>>> By minimizing
access times and improving data retrieval efficiency, disk scheduling enhances user experience.
What components does an operating system integrate to manage resources effectively? -
Answer>>> An OS integrates memory management, process management, CPU scheduling, file
systems, and disk scheduling.
What type of management does the OS perform to track programs in memory? - Answer>>> The
OS performs memory management.
What is the fetch-decode-execute cycle? - Answer>>> It is the process by which an executing
program's instructions are processed in main memory.
What is multiprogramming? - Answer>>> It is the technique of keeping multiple programs in
main memory at the same time, allowing them to compete for access to the CPU.
What does memory management involve? - Answer>>> Memory management involves the
allocation and tracking of memory space for programs and data during execution.
What is a process? - Answer>>> A process is an instance of a program in execution, including
the program code and its current activity.
What is process management? - Answer>>> Process management refers to the handling of
processes in an operating system, including their creation, scheduling, and termination.
What is CPU scheduling? - Answer>>> CPU scheduling is the method by which the operating
system decides which process runs at a given time.
How is the OS itself a program that must be executed? - Answer>>> The operating system is a
collection of software that manages hardware and software resources, and it must be loaded and
executed by the CPU.
Describe early batch processing. - Answer>>> Early batch processing involved executing jobs in
groups without user interaction, optimizing CPU utilization.
What is time sharing? - Answer>>> Time sharing is a method that allows multiple users to
interact with a computer simultaneously by sharing CPU time.