1|Page
DOS II Disk Operating System Final Verified
Examination, 2026/2027 -Question Command-Line
Systems Examination with Rationales||Newest Exam!!!
In demand paging, when an excessive number of pages
are moved back and forth between main memory and
secondary storage, it is called ____.
a. swapping
b. faulting
c. paging
d. thrashing - Answer-Thrashing
The primary advantage of storing programs in
noncontinuous locations is that ______.
a. multiple programs can run at the same time
b. every program will be able to run
c. secondary storage is accessed more quickly
d. main memory is used more efficiently - Answer-Main
memory is used more efficiently
A disadvantage of segmented memory allocation is ___.
a. the physical size requirements of main memory
,2|Page
b. the number of page faults
c. internal fragmentation
d. external fragmentation - Answer-external fragmentation
A(n) ____ is created by a process, and it can be
scheduled and executed independently of
its parent process.
a. thread
b. program
c. mini-process
d. instruction set - Answer-thread
The Process Scheduler assigns the CPU to execute the
processes for those jobs placed on the _______ queue by
the job scheduler.
a. WAITING
b. NEXT
c. PROCESS
d. READY - Answer-Ready
,3|Page
The operating system manages each and every piece of
hardware and software
True
False - Answer-True
The word _____ is used to indicate that a program is
permanently held in ROM (read only memory), as
opposed to being held in secondary storage.
a. firmware
b. shareware
c. hardware
d. software - Answer-Firmware
Each peripheral device has its own software, called a ___
which contains the detailed instructions required to start
that device, allocate it to a job, use the device correctly,
and deallocate it when it's appropriate.
a. device software
b. device handler
c. device driver
d. device controller - Answer-Device Driver
, 4|Page
The efficiency of a batch system is measured in ____,
which is the number of jobs completed in a given amount
of time.
a. processes
b. Threads
c. throughput
d. turnaround time - Answer-Throughput
A hybrid system is a combination of the ____ systems.
a. batch and interactive
b. batch and real-time
c. interactive and real-time
d. real-time and general-purpose - Answer-batch and
interactive
____ means that several logical records are grouped
within one physical record.
a. Grouping
b. Fixing
c. Combining
d. Blocking - Answer-Blocking
DOS II Disk Operating System Final Verified
Examination, 2026/2027 -Question Command-Line
Systems Examination with Rationales||Newest Exam!!!
In demand paging, when an excessive number of pages
are moved back and forth between main memory and
secondary storage, it is called ____.
a. swapping
b. faulting
c. paging
d. thrashing - Answer-Thrashing
The primary advantage of storing programs in
noncontinuous locations is that ______.
a. multiple programs can run at the same time
b. every program will be able to run
c. secondary storage is accessed more quickly
d. main memory is used more efficiently - Answer-Main
memory is used more efficiently
A disadvantage of segmented memory allocation is ___.
a. the physical size requirements of main memory
,2|Page
b. the number of page faults
c. internal fragmentation
d. external fragmentation - Answer-external fragmentation
A(n) ____ is created by a process, and it can be
scheduled and executed independently of
its parent process.
a. thread
b. program
c. mini-process
d. instruction set - Answer-thread
The Process Scheduler assigns the CPU to execute the
processes for those jobs placed on the _______ queue by
the job scheduler.
a. WAITING
b. NEXT
c. PROCESS
d. READY - Answer-Ready
,3|Page
The operating system manages each and every piece of
hardware and software
True
False - Answer-True
The word _____ is used to indicate that a program is
permanently held in ROM (read only memory), as
opposed to being held in secondary storage.
a. firmware
b. shareware
c. hardware
d. software - Answer-Firmware
Each peripheral device has its own software, called a ___
which contains the detailed instructions required to start
that device, allocate it to a job, use the device correctly,
and deallocate it when it's appropriate.
a. device software
b. device handler
c. device driver
d. device controller - Answer-Device Driver
, 4|Page
The efficiency of a batch system is measured in ____,
which is the number of jobs completed in a given amount
of time.
a. processes
b. Threads
c. throughput
d. turnaround time - Answer-Throughput
A hybrid system is a combination of the ____ systems.
a. batch and interactive
b. batch and real-time
c. interactive and real-time
d. real-time and general-purpose - Answer-batch and
interactive
____ means that several logical records are grouped
within one physical record.
a. Grouping
b. Fixing
c. Combining
d. Blocking - Answer-Blocking
