Quick Answer
The answer is LAN, WAN, and MAN. These three are the most common types of computer networks because they classify networks by their geographic scope: a Local Area Network covers a small area like a home or office, a Wide Area Network spans large distances such as cities or countries, and a Metropolitan Area Network bridges the gap by covering a city-sized region. On the CompTIA ITF+ FC0-U61 exam, this concept tests your understanding of network scale and typical use cases, often appearing in multiple-choice questions that ask you to identify standard network types. A common trap is confusing MAN with WAN, but remember that a MAN is limited to a single metropolitan area, while a WAN connects multiple MANs or LANs across vast distances. To keep them straight, use the mnemonic “Little, Medium, Large” for LAN, MAN, and WAN respectively.
This FC0-U61 practice question tests your understanding of it concepts and terminology. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE of the following are common types of computer networks? (Select three.)
LAN
Local Area Network connects devices in a small area.
WAN
Wide Area Network spans large geographic areas.
HDMI
Why wrong: HDMI is a video/audio interface, not a network.
USB
Why wrong: USB is a port/interface, not a network.
MAN
Metropolitan Area Network covers a city-sized area.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
LAN
A LAN (Local Area Network) connects computers within a limited geographic area, such as a home, office, or school, using Ethernet or Wi-Fi. It is one of the most fundamental network types, typically operating at Layer 2 of the OSI model with high data transfer rates and low latency.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
LAN
Why this is correct
Local Area Network connects devices in a small area.
Related concept
Read the scenario before looking for a memorised answer.
WAN
Why this is correct
Wide Area Network spans large geographic areas.
Related concept
Read the scenario before looking for a memorised answer.
HDMI
Why it's wrong here
HDMI is a video/audio interface, not a network.
USB
Why it's wrong here
USB is a port/interface, not a network.
MAN
Why this is correct
Metropolitan Area Network covers a city-sized area.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates confuse physical connectors or cables (HDMI, USB) with network types, but CompTIA tests the distinction between network topologies (LAN, WAN, MAN) and peripheral interfaces.
Detailed technical explanation
LANs often use Ethernet (IEEE 802.3) with MAC addresses for frame switching, while WANs (Wide Area Networks) interconnect multiple LANs over large distances using technologies like MPLS or leased lines. MANs (Metropolitan Area Networks) cover a city-scale area, often leveraging fiber optic rings (e.g., SONET/SDH) to provide high-bandwidth connectivity between enterprise sites.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the FC0-U61 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
IT Concepts and Terminology — study guide chapter
Learn the concepts, then practise the questions
IT Concepts and Terminology practice questions
Targeted practice on this topic area only
All FC0-U61 questions
512 questions across all exam domains
CompTIA ITF+ FC0-U61 study guide
Full concept coverage aligned to exam objectives
FC0-U61 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise FC0-U61 questions linked to IT Concepts and Terminology.
Practise FC0-U61 questions linked to Infrastructure.
Practise FC0-U61 questions linked to Applications and Software.
Practise FC0-U61 questions linked to Software Development Concepts.
Practise FC0-U61 questions linked to Security.
Practise FC0-U61 questions linked to Database Fundamentals.
Practise FC0-U61 questions linked to FC0-U61 fundamentals.
Practise FC0-U61 questions linked to FC0-U61 scenario.
Practise FC0-U61 questions linked to FC0-U61 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
IT Concepts and Terminology — This question tests IT Concepts and Terminology — Read the scenario before looking for a memorised answer..
The correct answer is: LAN — A LAN (Local Area Network) connects computers within a limited geographic area, such as a home, office, or school, using Ethernet or Wi-Fi. It is one of the most fundamental network types, typically operating at Layer 2 of the OSI model with high data transfer rates and low latency.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 25, 2026
This FC0-U61 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U61 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.