WGU D027 OBJECTIVE ASSESSMENT EXAM
FINAL EXAM NEWEST ACTUAL EXAM COMPLETE 100
QUESTIONS AND CORRECT DETAILED ANSWERS
Question 1
Which component is often considered the "brain" of the computer, responsible for executing
instructions and performing calculations?
A) Random Access Memory (RAM).
B) Hard Disk Drive (HDD).
C) Central Processing Unit (CPU).
D) Graphics Processing Unit (GPU).
E) Motherboard.
Correct Answer: C) Central Processing Unit (CPU).
Rationale: The CPU is the primary component that performs most of the
processing inside a computer, executing instructions from programs.
Question 2
What is the primary function of Read-Only Memory (ROM)?
A) Temporary storage for data and programs.
B) Long-term storage of user files.
C) Stores firmware (boot-up instructions) that is non-volatile.
D) Connects peripheral devices.
E) Processes graphical data.
Correct Answer: C) Stores firmware (boot-up instructions) that is non-volatile.
Rationale: ROM contains essential instructions (firmware) needed for a computer
to start up, and its contents are retained even when the power is off.
Question 3
Which type of software provides common services for computer programs and manages the
computer hardware?
A) Application software.
B) Utility software.
C) Operating system.
D) Firmware.
E) Driver software.
,Correct Answer: C) Operating system.
Rationale: The operating system (OS) is the fundamental software that manages all
the computer's resources, acts as an intermediary between applications and
hardware, and provides a user interface.
Question 4
What is the purpose of a "switch" in a network?
A) To connect different computer networks together.
B) To filter network traffic based on security rules.
C) To connect multiple devices within a single Local Area Network (LAN) and forward data to
specific devices.
D) To convert digital signals to analog for internet access.
E) To provide wireless access for devices.
Correct Answer: C) To connect multiple devices within a single Local Area
Network (LAN) and forward data to specific devices.
Rationale: A network switch operates at the data link layer, creating dedicated
connections between devices within the same network segment for efficient data
transfer.
Question 5
Which of the following is a common cybersecurity threat that involves unsolicited and
unwanted digital communication, often email, sent in bulk?
A) Phishing.
B) Spam.
C) Malware.
D) Ransomware.
E) Rootkit.
Correct Answer: B) Spam.
Rationale: Spam refers to unsolicited bulk electronic messages, typically email, sent
indiscriminately, often for commercial advertising or to spread malware/phishing
attempts.
,Question 6
What is "RAM" often referred to as due to its temporary nature?
A) Permanent memory.
B) Volatile memory.
C) Secondary storage.
D) Read-only memory.
E) Cache memory.
Correct Answer: B) Volatile memory.
Rationale: RAM is volatile because it requires power to maintain the stored
information. Its contents are lost when the computer is turned off.
Question 7
Which component is responsible for permanently storing large amounts of data, even when the
computer is powered off?
A) CPU.
B) RAM.
C) Hard Drive (HDD/SSD).
D) Graphics Processing Unit (GPU).
E) Cache memory.
Correct Answer: C) Hard Drive (HDD/SSD).
Rationale: Hard drives (both traditional HDDs and solid-state drives SSDs) provide
non-volatile, long-term storage for the operating system, applications, and user
files.
Question 8
What is "application software"?
A) Software that manages hardware resources.
B) Software that performs specific tasks for the end-user (e.g., word processing, gaming).
C) Software that controls peripheral devices.
D) Software that protects against viruses.
E) Software that provides network connectivity.
Correct Answer: B) Software that performs specific tasks for the end-user (e.g.,
, word processing, gaming).
Rationale: Application software is designed to assist users in accomplishing specific
tasks, making the computer a useful tool for various purposes.
Question 9
What does "WAN" stand for in networking?
A) Wireless Access Network.
B) Wide Area Network.
C) Wired Access Node.
D) Web Application Network.
E) Workgroup Area Network.
Correct Answer: B) Wide Area Network.
Rationale: A WAN connects devices across large geographical distances, such as
across cities, states, or even countries, often utilizing technologies like
telecommunication lines or satellite links.
Question 10
"Phishing" is a cybersecurity attack that primarily uses what method?
A) Direct technical exploits of software vulnerabilities.
B) Physical theft of computer hardware.
C) Social engineering to trick individuals into divulging sensitive information.
D) Encrypting files for ransom.
E) Overwhelming a server with traffic.
Correct Answer: C) Social engineering to trick individuals into divulging sensitive
information.
Rationale: Phishing attacks manipulate people through deceptive communications
(e.g., emails, messages) to reveal login credentials, credit card numbers, or other
sensitive data.
Question 11
Which of the following is an example of an "output device"?
A) Keyboard.
B) Mouse.
FINAL EXAM NEWEST ACTUAL EXAM COMPLETE 100
QUESTIONS AND CORRECT DETAILED ANSWERS
Question 1
Which component is often considered the "brain" of the computer, responsible for executing
instructions and performing calculations?
A) Random Access Memory (RAM).
B) Hard Disk Drive (HDD).
C) Central Processing Unit (CPU).
D) Graphics Processing Unit (GPU).
E) Motherboard.
Correct Answer: C) Central Processing Unit (CPU).
Rationale: The CPU is the primary component that performs most of the
processing inside a computer, executing instructions from programs.
Question 2
What is the primary function of Read-Only Memory (ROM)?
A) Temporary storage for data and programs.
B) Long-term storage of user files.
C) Stores firmware (boot-up instructions) that is non-volatile.
D) Connects peripheral devices.
E) Processes graphical data.
Correct Answer: C) Stores firmware (boot-up instructions) that is non-volatile.
Rationale: ROM contains essential instructions (firmware) needed for a computer
to start up, and its contents are retained even when the power is off.
Question 3
Which type of software provides common services for computer programs and manages the
computer hardware?
A) Application software.
B) Utility software.
C) Operating system.
D) Firmware.
E) Driver software.
,Correct Answer: C) Operating system.
Rationale: The operating system (OS) is the fundamental software that manages all
the computer's resources, acts as an intermediary between applications and
hardware, and provides a user interface.
Question 4
What is the purpose of a "switch" in a network?
A) To connect different computer networks together.
B) To filter network traffic based on security rules.
C) To connect multiple devices within a single Local Area Network (LAN) and forward data to
specific devices.
D) To convert digital signals to analog for internet access.
E) To provide wireless access for devices.
Correct Answer: C) To connect multiple devices within a single Local Area
Network (LAN) and forward data to specific devices.
Rationale: A network switch operates at the data link layer, creating dedicated
connections between devices within the same network segment for efficient data
transfer.
Question 5
Which of the following is a common cybersecurity threat that involves unsolicited and
unwanted digital communication, often email, sent in bulk?
A) Phishing.
B) Spam.
C) Malware.
D) Ransomware.
E) Rootkit.
Correct Answer: B) Spam.
Rationale: Spam refers to unsolicited bulk electronic messages, typically email, sent
indiscriminately, often for commercial advertising or to spread malware/phishing
attempts.
,Question 6
What is "RAM" often referred to as due to its temporary nature?
A) Permanent memory.
B) Volatile memory.
C) Secondary storage.
D) Read-only memory.
E) Cache memory.
Correct Answer: B) Volatile memory.
Rationale: RAM is volatile because it requires power to maintain the stored
information. Its contents are lost when the computer is turned off.
Question 7
Which component is responsible for permanently storing large amounts of data, even when the
computer is powered off?
A) CPU.
B) RAM.
C) Hard Drive (HDD/SSD).
D) Graphics Processing Unit (GPU).
E) Cache memory.
Correct Answer: C) Hard Drive (HDD/SSD).
Rationale: Hard drives (both traditional HDDs and solid-state drives SSDs) provide
non-volatile, long-term storage for the operating system, applications, and user
files.
Question 8
What is "application software"?
A) Software that manages hardware resources.
B) Software that performs specific tasks for the end-user (e.g., word processing, gaming).
C) Software that controls peripheral devices.
D) Software that protects against viruses.
E) Software that provides network connectivity.
Correct Answer: B) Software that performs specific tasks for the end-user (e.g.,
, word processing, gaming).
Rationale: Application software is designed to assist users in accomplishing specific
tasks, making the computer a useful tool for various purposes.
Question 9
What does "WAN" stand for in networking?
A) Wireless Access Network.
B) Wide Area Network.
C) Wired Access Node.
D) Web Application Network.
E) Workgroup Area Network.
Correct Answer: B) Wide Area Network.
Rationale: A WAN connects devices across large geographical distances, such as
across cities, states, or even countries, often utilizing technologies like
telecommunication lines or satellite links.
Question 10
"Phishing" is a cybersecurity attack that primarily uses what method?
A) Direct technical exploits of software vulnerabilities.
B) Physical theft of computer hardware.
C) Social engineering to trick individuals into divulging sensitive information.
D) Encrypting files for ransom.
E) Overwhelming a server with traffic.
Correct Answer: C) Social engineering to trick individuals into divulging sensitive
information.
Rationale: Phishing attacks manipulate people through deceptive communications
(e.g., emails, messages) to reveal login credentials, credit card numbers, or other
sensitive data.
Question 11
Which of the following is an example of an "output device"?
A) Keyboard.
B) Mouse.
