WGU C182 Introduction to IT: The
Ultimate 200-Question Objective
Assessment Drill with Detailed
Rationales
What is the primary function of an operating system?
A) To run spreadsheets
B) To manage hardware and software resources
C) To create documents
D) To browse the internet
Answer: B
Rationale: The operating system acts as an intermediary between the user
and computer hardware, managing resources like memory, CPU, and
devices.
Which type of memory is non-volatile and stores firmware?
A) RAM
B) Cache
C) ROM
D) Virtual memory
Answer: C
Rationale: ROM retains data when power is off. It often stores BIOS or
firmware instructions.
What is the main purpose of an input device?
A) Display output
B) Store data
,C) Enter data into a computer
D) Process instructions
Answer: C
Rationale: Input devices like keyboards and mice allow users to send data
to the computer.
Which network topology connects all devices to a single central cable?
A) Star
B) Ring
C) Bus
D) Mesh
Answer: C
Rationale: A bus topology uses one main cable called a backbone to which
all devices connect.
What does the term bandwidth refer to in networking?
A) Speed of the CPU
B) Amount of data transmitted per unit time
C) Storage capacity of a hard drive
D) Number of users on a network
Answer: B
Rationale: Bandwidth is the maximum rate of data transfer across a
network path.
What is the function of a firewall?
A) Speed up internet
B) Block unauthorized access
C) Store files
D) Manage user accounts
Answer: B
Rationale: A firewall monitors and controls incoming and outgoing
network traffic based on security rules.
,Which of the following is a relational database management system?
A) MongoDB
B) MySQL
C) Hadoop
D) Redis
Answer: B
Rationale: MySQL is a relational DBMS using tables and SQL for data
management.
What does SQL stand for?
A) Structured Query Language
B) Simple Question Language
C) System Query Logic
D) Sequential Query Language
Answer: A
Rationale: SQL is used to communicate with and manipulate relational
databases.
Which type of software license allows free use but restricts
modification?
A) Open source
B) Shareware
C) Freeware
D) Proprietary
Answer: C
Rationale: Freeware is available for free use but typically does not allow
modification of the source code.
What is the purpose of an IP address?
A) Identify a device on a network
B) Encrypt data
C) Store email
, D) Manage memory
Answer: A
Rationale: An IP address uniquely identifies each device on a network for
communication.
Which storage device has no moving parts?
A) HDD
B) SSD
C) DVD
D) Magnetic tape
Answer: B
Rationale: Solid state drives use flash memory, making them faster and
more durable than HDDs.
What does the term encryption mean?
A) Converting data into a secret code
B) Deleting data permanently
C) Compressing data
D) Backing up data
Answer: A
Rationale: Encryption transforms data into an unreadable format to protect
it from unauthorized access.
Which topology uses a central device like a switch or hub?
A) Mesh
B) Star
C) Ring
D) Bus
Answer: B
Rationale: In star topology, all devices connect to a central device that
manages traffic.
Ultimate 200-Question Objective
Assessment Drill with Detailed
Rationales
What is the primary function of an operating system?
A) To run spreadsheets
B) To manage hardware and software resources
C) To create documents
D) To browse the internet
Answer: B
Rationale: The operating system acts as an intermediary between the user
and computer hardware, managing resources like memory, CPU, and
devices.
Which type of memory is non-volatile and stores firmware?
A) RAM
B) Cache
C) ROM
D) Virtual memory
Answer: C
Rationale: ROM retains data when power is off. It often stores BIOS or
firmware instructions.
What is the main purpose of an input device?
A) Display output
B) Store data
,C) Enter data into a computer
D) Process instructions
Answer: C
Rationale: Input devices like keyboards and mice allow users to send data
to the computer.
Which network topology connects all devices to a single central cable?
A) Star
B) Ring
C) Bus
D) Mesh
Answer: C
Rationale: A bus topology uses one main cable called a backbone to which
all devices connect.
What does the term bandwidth refer to in networking?
A) Speed of the CPU
B) Amount of data transmitted per unit time
C) Storage capacity of a hard drive
D) Number of users on a network
Answer: B
Rationale: Bandwidth is the maximum rate of data transfer across a
network path.
What is the function of a firewall?
A) Speed up internet
B) Block unauthorized access
C) Store files
D) Manage user accounts
Answer: B
Rationale: A firewall monitors and controls incoming and outgoing
network traffic based on security rules.
,Which of the following is a relational database management system?
A) MongoDB
B) MySQL
C) Hadoop
D) Redis
Answer: B
Rationale: MySQL is a relational DBMS using tables and SQL for data
management.
What does SQL stand for?
A) Structured Query Language
B) Simple Question Language
C) System Query Logic
D) Sequential Query Language
Answer: A
Rationale: SQL is used to communicate with and manipulate relational
databases.
Which type of software license allows free use but restricts
modification?
A) Open source
B) Shareware
C) Freeware
D) Proprietary
Answer: C
Rationale: Freeware is available for free use but typically does not allow
modification of the source code.
What is the purpose of an IP address?
A) Identify a device on a network
B) Encrypt data
C) Store email
, D) Manage memory
Answer: A
Rationale: An IP address uniquely identifies each device on a network for
communication.
Which storage device has no moving parts?
A) HDD
B) SSD
C) DVD
D) Magnetic tape
Answer: B
Rationale: Solid state drives use flash memory, making them faster and
more durable than HDDs.
What does the term encryption mean?
A) Converting data into a secret code
B) Deleting data permanently
C) Compressing data
D) Backing up data
Answer: A
Rationale: Encryption transforms data into an unreadable format to protect
it from unauthorized access.
Which topology uses a central device like a switch or hub?
A) Mesh
B) Star
C) Ring
D) Bus
Answer: B
Rationale: In star topology, all devices connect to a central device that
manages traffic.
