WGU C182 Introduction to IT Exam Actual 2026/2027 – Complete Questions with Detailed Rationales | 100% Verified Answers – Pass Guaranteed –GRADED A+

WGU C182 Introduction to IT Exam
Actual 2026/2027 – Complete Questions
with Detailed Rationales | 100% Verified
Answers – Pass Guaranteed –GRADED A+

1. Which layer of the DIKW pyramid represents data that has been
given context and meaning?

 A) Data
 B) Information
 C) Knowledge
 D) Wisdom

Answer: B) Information
Rationale: The DIKW hierarchy moves from Data (raw facts) → Information
(data with context) → Knowledge (applied information) → Wisdom
(evaluated understanding). Information answers "who, what, where, and
when."




2. What is the primary function of the CPU's Control Unit (CU)?

 A) Perform arithmetic calculations
 B) Store cached data for quick access
 C) Direct the operation of the processor by decoding instructions
 D) Manage virtual memory paging

Answer: C) Direct the operation of the processor by decoding
instructions
Rationale: The CU fetches instructions from memory, decodes them, and

, directs the ALU and other components to execute them. The ALU
(Arithmetic Logic Unit) handles the math (A).




3. Which type of software is specifically designed to manage and
control hardware components?

 A) Application Software
 B) Utility Software
 C) System Software
 D) Firmware

Answer: C) System Software
Rationale: System software (like the operating system) acts as an
intermediary between the user/application software and the hardware.
Firmware is a specific subtype stored on ROM, but System Software is the
broad, correct category.




4. In networking, what does the acronym "LAN" stand for?

 A) Large Area Network
 B) Local Access Node
 C) Local Area Network
 D) Logical Addressing Network

Answer: C) Local Area Network
Rationale: A LAN connects devices within a limited geographic area, such as
a home, school, or office building, using high-speed connections.

, 5. Which security principle ensures that a user cannot deny having
performed an action (like sending an email)?

 A) Confidentiality
 B) Integrity
 C) Availability
 D) Non-repudiation

Answer: D) Non-repudiation
Rationale: The CIA triad covers Confidentiality, Integrity, and Availability.
Non-repudiation is a separate, critical concept that uses digital signatures
and logs to provide proof of origin and delivery, preventing denial of
actions.




6. Which of the following is an example of volatile memory?

 A) SSD
 B) HDD
 C) RAM
 D) ROM

Answer: C) RAM
Rationale: Volatile memory loses its data when power is turned off. RAM
(Random Access Memory) is volatile. ROM, SSDs, and HDDs are non-
volatile (persistent).




7. What is the primary purpose of a Database Management System
(DBMS)?

 A) To create web pages dynamically
 B) To define, create, query, update, and administer databases

,  C) To compile source code into machine code
 D) To manage network traffic routing

Answer: B) To define, create, query, update, and administer databases
Rationale: A DBMS (like MySQL or Oracle) is software that interacts with
end-users, applications, and the database itself to capture and analyze data.




8. Which OSI model layer is responsible for logical addressing and
routing packets across networks?

 A) Physical Layer
 B) Data Link Layer
 C) Network Layer
 D) Transport Layer

Answer: C) Network Layer
Rationale: Layer 3 (Network) handles logical addressing (IP addresses) and
determines the best physical path for data to travel (routing).




9. A retail company wants to analyze years of sales data to predict
future buying trends. Which type of IT system is best suited for this?

 A) Transaction Processing System (TPS)
 B) Management Information System (MIS)
 C) Decision Support System (DSS)
 D) Expert System

Answer: C) Decision Support System (DSS)
Rationale: DSS are designed to help users analyze large amounts of data
and make strategic decisions. TPS handles daily transactions; MIS generates
standard reports for managers.