1|Page
WGU’s D684 Introduction To Computer Science
Course|| QUESTIONS AND ANSWERS | ACCURATE
AND VERIFIED FOR GUARANTEED PASS | GRADED
A+||NEWEST EXAM!!!
What is the main disadvantage of the first-come, first-
served (FCFS) disk scheduling algorithm?
- Complexity of implementation
- High seek time
- Starvation of certain requests
- Unpredictable performance - ANSWER-High seek time
Which disk scheduling algorithm minimizes the total seek
time by scanning in both directions across the disk?
- Elevator (SCAN)
- Circular SCAN (C-SCAN)
- First-come, first-served (FCFS)
- Shortest seek time first (SSTF) - ANSWER-Elevator
(SCAN)
What is the primary function of the CPU in a computer?
- Store data for long-term use
- Manage network connections
,2|Page
- Perform calculations and execute instructions
- Display graphics on the monitor - ANSWER-Perform
calculations and execute instructions
Which component is considered volatile memory?
- ROM
- Hard drive
- SSD
- RAM - ANSWER-RAM
Which storage device typically offers the fastest data
access speed?
- Solid state drive (SSD)
- Hard disk drive (HDD)
- Optical drive
- USB flash drive - ANSWER-Solid state drive (SSD)
Which component is directly responsible for executing the
instructions of a computer program?
- Hard drive
- Power supply
- CPU
,3|Page
- RAM - ANSWER-Allocating fixed-sized blocks of
memory.
Which memory component is an example of nonvolatile
memory?
- Register
- Cache memory
- RAM
- ROM - ANSWER-ROM
Which type of memory is used to temporarily store data
that the CPU needs while performing tasks?
- SSD
- ROM
- RAM
- Hard drive - ANSWER-RAM
Which term refers to the number of bits a computer can
process at one time?
- Clock speed
- Core count
- Bus width
, 4|Page
- Cache size - ANSWER-Bus width
Which file extension is typically associated with a text file?
- .mp3
- .exe
- .jpg
- .txt - ANSWER-.txt
Which statement describes a binary file?
- A program source file with a .java extension
- A script file with a .sh extension
- An image file with a .png extension
- A file containing plain text - ANSWER-An image file with
a .png extension
In a hierarchical file system, what is the top-level directory
called?
- Root directory
- Subdirectory
- Parent directory
- Home directory - ANSWER-Root directory
In a hierarchical file system, what is a subdirectory?
WGU’s D684 Introduction To Computer Science
Course|| QUESTIONS AND ANSWERS | ACCURATE
AND VERIFIED FOR GUARANTEED PASS | GRADED
A+||NEWEST EXAM!!!
What is the main disadvantage of the first-come, first-
served (FCFS) disk scheduling algorithm?
- Complexity of implementation
- High seek time
- Starvation of certain requests
- Unpredictable performance - ANSWER-High seek time
Which disk scheduling algorithm minimizes the total seek
time by scanning in both directions across the disk?
- Elevator (SCAN)
- Circular SCAN (C-SCAN)
- First-come, first-served (FCFS)
- Shortest seek time first (SSTF) - ANSWER-Elevator
(SCAN)
What is the primary function of the CPU in a computer?
- Store data for long-term use
- Manage network connections
,2|Page
- Perform calculations and execute instructions
- Display graphics on the monitor - ANSWER-Perform
calculations and execute instructions
Which component is considered volatile memory?
- ROM
- Hard drive
- SSD
- RAM - ANSWER-RAM
Which storage device typically offers the fastest data
access speed?
- Solid state drive (SSD)
- Hard disk drive (HDD)
- Optical drive
- USB flash drive - ANSWER-Solid state drive (SSD)
Which component is directly responsible for executing the
instructions of a computer program?
- Hard drive
- Power supply
- CPU
,3|Page
- RAM - ANSWER-Allocating fixed-sized blocks of
memory.
Which memory component is an example of nonvolatile
memory?
- Register
- Cache memory
- RAM
- ROM - ANSWER-ROM
Which type of memory is used to temporarily store data
that the CPU needs while performing tasks?
- SSD
- ROM
- RAM
- Hard drive - ANSWER-RAM
Which term refers to the number of bits a computer can
process at one time?
- Clock speed
- Core count
- Bus width
, 4|Page
- Cache size - ANSWER-Bus width
Which file extension is typically associated with a text file?
- .mp3
- .exe
- .jpg
- .txt - ANSWER-.txt
Which statement describes a binary file?
- A program source file with a .java extension
- A script file with a .sh extension
- An image file with a .png extension
- A file containing plain text - ANSWER-An image file with
a .png extension
In a hierarchical file system, what is the top-level directory
called?
- Root directory
- Subdirectory
- Parent directory
- Home directory - ANSWER-Root directory
In a hierarchical file system, what is a subdirectory?
