WGU D075 IT Foundations Objective Assessment – Western Governors University (WGU)

WGU D075 IT Foundations Objective Assessment –
Western Governors University (WGU)
COMPETENCY DOMAIN 1: IT INFRASTRUCTURE & HARDWARE
Questions 1–25


Question 1
Which of the following correctly describes the six major components of an IT
infrastructure?
A. Hardware, software, networks, data, people, and processes
B. Hardware, operating systems, applications, data, users, and procedures
C. Servers, workstations, routers, switches, firewalls, and cables
D. CPU, RAM, storage, motherboard, power supply, and cooling

<tool_call> Correct Answer: A</tool_call>
<tool_call> Rationale: The six major components of IT infrastructure are
hardware, software, networks, data, people, and processes. These components
work in concert to provide connectivity and collaboration for businesses. Options
B, C, and D list subsets or related concepts but do not represent the complete six-
component framework.</tool_call>


Question 2
What is the primary function of the Central Processing Unit (CPU) in a computer
system?
A. Store data permanently for future retrieval
B. Execute instructions and perform most calculations
C. Manage network connectivity between devices
D. Display visual output to the user

<tool_call> Correct Answer: B</tool_call>
<tool_call> Rationale: The CPU is a microprocessor chip and is considered the

,"brain" of the computer. Its primary function is to execute instructions and
perform most calculations for the computer. Option A describes storage devices,
Option C describes network interface functions, and Option D describes the
monitor.</tool_call>


Question 3
Select all that apply. Which of the following are considered peripheral devices?
A. Keyboard
B. CPU
C. Monitor
D. Mouse
E. Motherboard

<tool_call> Correct Answers: A, C, D</tool_call>
<tool_call> Rationale: Peripheral devices are external components that
connect to the computer. Keyboards, monitors, and mice are all peripheral
devices. The CPU (B) and motherboard (E) are internal core components, not
peripherals.</tool_call>


Question 4
A company needs a computer system capable of processing massive amounts of
bulk data and supporting hundreds of simultaneous users. Which type of
computer should they purchase?
A. Microcomputer
B. Midrange computer
C. Mainframe computer
D. Handheld computer

<tool_call> Correct Answer: C</tool_call>
<tool_call> Rationale: Mainframe computers are massive, room-sized
computers that process and store enormous amounts of bulk data and
information. They support hundreds of simultaneous users. Microcomputers (A)

,are desktops/laptops, midrange computers (B) are smaller than mainframes, and
handheld computers (D) are tablets and mobile devices.</tool_call>


Question 5
What is the function of a Network Interface Card (NIC)?
A. To store the computer's operating system
B. To enable a device to connect to a network
C. To process graphical data for display
D. To manage power distribution to components

<tool_call> Correct Answer: B</tool_call>
<tool_call> Rationale: A Network Interface Card (NIC) is a hardware
component that enables a device to connect to a network. It provides the physical
interface between the computer and the network medium. Options A, C, and D
describe storage, graphics processing, and power management functions
respectively.</tool_call>


Question 6
Select all that apply. Which of the following are characteristics of Random Access
Memory (RAM)?
A. It is volatile memory
B. It stores data permanently
C. It is fast and short-term storage
D. It retains data when the computer is powered off
E. It is used for temporary data storage while the computer is running

<tool_call> Correct Answers: A, C, E</tool_call>
<tool_call> Rationale: RAM is volatile memory that loses its data when power
is removed. It is fast, short-term storage used for temporary data while the
computer is running. Options B and D describe non-volatile storage like hard
drives or SSDs.</tool_call>

, Question 7
Which IT professional is responsible for analyzing business users' needs and
finding ways for IT to make processes more efficient?
A. Network Administrator
B. Database Administrator
C. Systems Analyst
D. Programmer

<tool_call> Correct Answer: C</tool_call>
<tool_call> Rationale: Systems analysts analyze business users' needs and find
ways for IT to make processes more efficient. They may also write specifications
for programmers. Network administrators (A) design and monitor networks,
database administrators (B) design and monitor databases, and programmers (D)
create application programs based on specifications.</tool_call>


Question 8
Which of the following best describes "best practice" in an IT context?
A. A new technology that has not yet been tested
B. A management process or method that is most effective at achieving a desired
outcome
C. The least expensive way to implement a technology solution
D. A legally required standard for IT operations

<tool_call> Correct Answer: B</tool_call>
<tool_call> Rationale: A best practice is a management process, technique, or
method that is most effective at arriving at a desired outcome or a better
outcome than any other process, technique, or method. Option A describes
emerging technology, Option C focuses on cost rather than effectiveness, and
Option D describes regulatory compliance.</tool_call>


Question 9