WGU D075 IT FOUNDATIONS OBJECTIVE ASSESSMENT –
WESTERN GOVERNORS UNIVERSITY (WGU) – 2026/2027
UPDATE | COMPLETE Q&A WITH VERIFIED ANSWERS AND
DETAILED RATIONALES
Core Domains:
1. Information Technology Concepts and Terminology
2. Computer Hardware Components and Architecture
3. Software: Operating Systems, Applications, and Development
4. Networking Fundamentals and the Internet
5. Information Security Principles and Threats
6. Data Management, Databases, and Information Systems
7. Business and Professional Ethics in IT
8. IT Roles, Governance, and Project Management
This comprehensive objective assessment is designed to evaluate the foundational
knowledge and competencies in information technology as defined by the WGU
D075 curriculum. It measures the ability to understand core IT concepts, apply
technical reasoning, and recognize the role of technology in supporting business
objectives. The exam consists of 150 multiple-choice questions that blend
theoretical principles with practical, scenario-based applications. You will be
tested on computer hardware, software, operating systems, networking
fundamentals, internet technologies, data management, information security,
ethical principles, and the responsibilities of IT professionals. Each question is
accompanied by a detailed RATIONALE that clarifies the correct answer and
reinforces essential learning points. This resource is crafted to provide verified
answers and comprehensive coverage of the D075 objective assessment, ensuring
you are well-prepared to demonstrate your IT foundational knowledge and
succeed in your academic and professional journey.
SECTION ONE: QUESTIONS 1–150
,1. A company is purchasing new computers for its graphic design team. Which
hardware component is most critical for rendering high-resolution images
and videos?
A. Central Processing Unit (CPU) with multiple cores
B. Solid-State Drive (SSD)
C. Graphics Processing Unit (GPU) with dedicated memory
D. High-capacity RAM
RATIONALE : The GPU is specialized for handling complex graphics and
parallel processing tasks required for rendering images and video. While
CPU, SSD, and RAM all contribute to performance, the GPU is the primary
component for rendering.
2. A user reports that their computer is running slowly and the hard drive
activity light is constantly on. Which of the following is the most likely
cause?
A. The CPU is overheating
B. The network cable is unplugged
C. Insufficient RAM causing excessive paging to the hard drive
D. The monitor resolution is set too high
RATIONALE : When RAM is insufficient, the operating system uses a
portion of the hard drive as virtual memory (paging). Constant
reading/writing to the drive, which is much slower than RAM, causes
performance degradation and a continuously active drive light.
3. Which of the following best describes the function of an operating system?
A. To create spreadsheets and documents
B. To manage hardware resources and provide a user interface
C. To connect to the internet and browse web pages
D. To protect against malware and viruses
RATIONALE : The operating system (e.g., Windows, macOS, Linux) is the
core software that manages all hardware components, provides a platform
for applications, and offers a user interface. It handles memory, process,
and file management.
4. A network administrator needs to connect multiple offices across different
cities into a single private network. Which type of network is most
, appropriate?
A. Local Area Network (LAN)
B. Personal Area Network (PAN)
C. Wide Area Network (WAN)
D. Metropolitan Area Network (MAN)
RATIONALE : A WAN spans large geographic areas, connecting LANs
across cities, countries, or continents. A LAN is limited to a small area; a
MAN covers a city; a PAN is for personal devices.
5. In the context of information security, what does the "CIA triad" represent?
A. Central Intelligence Agency
B. Cyber Intelligence Assessment
C. Confidentiality, Integrity, and Availability
D. Computer Incident Analysis
RATIONALE : The CIA triad is the fundamental model for security policy.
Confidentiality ensures data is not disclosed to unauthorized parties;
Integrity ensures data is accurate and unaltered; Availability ensures data is
accessible when needed.
6. A customer service representative is unable to access the company's
database. This issue directly violates which principle of the CIA triad?
A. Confidentiality
B. Integrity
C. Availability
D. Non-repudiation
RATIONALE : Availability means that systems and data are accessible to
authorized users when needed. If the database is down and users cannot
access it, availability is compromised.
7. Which of the following devices is used to connect a computer to a local
network via a cable?
A. Modem
B. Router
C. Network Interface Card (NIC)
D. Firewall
RATIONALE : The NIC (or Ethernet adapter) provides the physical
, interface for a wired network connection. A modem connects to the
internet service provider; a router directs traffic between networks; a
firewall filters traffic.
8. A startup wants to use cloud computing to avoid purchasing and
maintaining physical servers. Which cloud service model provides
virtualized computing resources over the internet?
A. Software as a Service (SaaS)
B. Platform as a Service (PaaS)
C. Infrastructure as a Service (IaaS)
D. Desktop as a Service (DaaS)
RATIONALE : IaaS provides on-demand access to virtualized hardware
resources like servers, storage, and networking. The customer manages the
OS and applications. SaaS provides ready-to-use software; PaaS provides a
development platform.
9. A company's security policy requires that all laptop hard drives be
encrypted. Which type of security is this?
A. Network security
B. Physical security
C. Data security (data at rest)
D. Application security
RATIONALE : Encrypting a hard drive protects data stored on the device
(data at rest). If the laptop is lost or stolen, the data remains unreadable
without the decryption key. This is a data security measure.
10.Which programming language is most commonly used for web
development, runs in a user's browser, and can manipulate web page
elements?
A. Python
B. Java
C. JavaScript
D. C++
RATIONALE : JavaScript is a client-side scripting language that runs in
web browsers, enabling dynamic content, interactive elements, and
WESTERN GOVERNORS UNIVERSITY (WGU) – 2026/2027
UPDATE | COMPLETE Q&A WITH VERIFIED ANSWERS AND
DETAILED RATIONALES
Core Domains:
1. Information Technology Concepts and Terminology
2. Computer Hardware Components and Architecture
3. Software: Operating Systems, Applications, and Development
4. Networking Fundamentals and the Internet
5. Information Security Principles and Threats
6. Data Management, Databases, and Information Systems
7. Business and Professional Ethics in IT
8. IT Roles, Governance, and Project Management
This comprehensive objective assessment is designed to evaluate the foundational
knowledge and competencies in information technology as defined by the WGU
D075 curriculum. It measures the ability to understand core IT concepts, apply
technical reasoning, and recognize the role of technology in supporting business
objectives. The exam consists of 150 multiple-choice questions that blend
theoretical principles with practical, scenario-based applications. You will be
tested on computer hardware, software, operating systems, networking
fundamentals, internet technologies, data management, information security,
ethical principles, and the responsibilities of IT professionals. Each question is
accompanied by a detailed RATIONALE that clarifies the correct answer and
reinforces essential learning points. This resource is crafted to provide verified
answers and comprehensive coverage of the D075 objective assessment, ensuring
you are well-prepared to demonstrate your IT foundational knowledge and
succeed in your academic and professional journey.
SECTION ONE: QUESTIONS 1–150
,1. A company is purchasing new computers for its graphic design team. Which
hardware component is most critical for rendering high-resolution images
and videos?
A. Central Processing Unit (CPU) with multiple cores
B. Solid-State Drive (SSD)
C. Graphics Processing Unit (GPU) with dedicated memory
D. High-capacity RAM
RATIONALE : The GPU is specialized for handling complex graphics and
parallel processing tasks required for rendering images and video. While
CPU, SSD, and RAM all contribute to performance, the GPU is the primary
component for rendering.
2. A user reports that their computer is running slowly and the hard drive
activity light is constantly on. Which of the following is the most likely
cause?
A. The CPU is overheating
B. The network cable is unplugged
C. Insufficient RAM causing excessive paging to the hard drive
D. The monitor resolution is set too high
RATIONALE : When RAM is insufficient, the operating system uses a
portion of the hard drive as virtual memory (paging). Constant
reading/writing to the drive, which is much slower than RAM, causes
performance degradation and a continuously active drive light.
3. Which of the following best describes the function of an operating system?
A. To create spreadsheets and documents
B. To manage hardware resources and provide a user interface
C. To connect to the internet and browse web pages
D. To protect against malware and viruses
RATIONALE : The operating system (e.g., Windows, macOS, Linux) is the
core software that manages all hardware components, provides a platform
for applications, and offers a user interface. It handles memory, process,
and file management.
4. A network administrator needs to connect multiple offices across different
cities into a single private network. Which type of network is most
, appropriate?
A. Local Area Network (LAN)
B. Personal Area Network (PAN)
C. Wide Area Network (WAN)
D. Metropolitan Area Network (MAN)
RATIONALE : A WAN spans large geographic areas, connecting LANs
across cities, countries, or continents. A LAN is limited to a small area; a
MAN covers a city; a PAN is for personal devices.
5. In the context of information security, what does the "CIA triad" represent?
A. Central Intelligence Agency
B. Cyber Intelligence Assessment
C. Confidentiality, Integrity, and Availability
D. Computer Incident Analysis
RATIONALE : The CIA triad is the fundamental model for security policy.
Confidentiality ensures data is not disclosed to unauthorized parties;
Integrity ensures data is accurate and unaltered; Availability ensures data is
accessible when needed.
6. A customer service representative is unable to access the company's
database. This issue directly violates which principle of the CIA triad?
A. Confidentiality
B. Integrity
C. Availability
D. Non-repudiation
RATIONALE : Availability means that systems and data are accessible to
authorized users when needed. If the database is down and users cannot
access it, availability is compromised.
7. Which of the following devices is used to connect a computer to a local
network via a cable?
A. Modem
B. Router
C. Network Interface Card (NIC)
D. Firewall
RATIONALE : The NIC (or Ethernet adapter) provides the physical
, interface for a wired network connection. A modem connects to the
internet service provider; a router directs traffic between networks; a
firewall filters traffic.
8. A startup wants to use cloud computing to avoid purchasing and
maintaining physical servers. Which cloud service model provides
virtualized computing resources over the internet?
A. Software as a Service (SaaS)
B. Platform as a Service (PaaS)
C. Infrastructure as a Service (IaaS)
D. Desktop as a Service (DaaS)
RATIONALE : IaaS provides on-demand access to virtualized hardware
resources like servers, storage, and networking. The customer manages the
OS and applications. SaaS provides ready-to-use software; PaaS provides a
development platform.
9. A company's security policy requires that all laptop hard drives be
encrypted. Which type of security is this?
A. Network security
B. Physical security
C. Data security (data at rest)
D. Application security
RATIONALE : Encrypting a hard drive protects data stored on the device
(data at rest). If the laptop is lost or stolen, the data remains unreadable
without the decryption key. This is a data security measure.
10.Which programming language is most commonly used for web
development, runs in a user's browser, and can manipulate web page
elements?
A. Python
B. Java
C. JavaScript
D. C++
RATIONALE : JavaScript is a client-side scripting language that runs in
web browsers, enabling dynamic content, interactive elements, and
