Quick Answer
The correct answer is Bus, along with Mesh and Star, as these are three fundamental network topology types. A bus topology uses a single central cable, known as the backbone, to connect all devices, while a mesh topology connects each device to every other device for high redundancy, and a star topology connects all nodes to a central hub or switch. On the CompTIA ITF+ FC0-U61 exam, this question tests your ability to distinguish between physical topologies, often presenting ring or hybrid as distractors—a common trap is confusing logical topologies (like token ring) with physical ones. To remember the core types, use the mnemonic “Big Smart Mice” for Bus, Star, and Mesh, which are the three most frequently tested topologies on the exam.
This FC0-U61 practice question tests your understanding of infrastructure. 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 types of network topologies?
Mesh
Each device connects to many others.
Star
Common topology with a central hub.
Bus
All devices share a single cable.
Triangle
Why wrong: Not a valid network topology.
Circle
Why wrong: Not a standard topology.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Mesh
A mesh topology connects each device to every other device, providing high redundancy and fault tolerance. It is a valid network topology type commonly used in WANs and wireless networks.
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.
Mesh
Why this is correct
Each device connects to many others.
Related concept
Read the scenario before looking for a memorised answer.
Star
Why this is correct
Common topology with a central hub.
Related concept
Read the scenario before looking for a memorised answer.
Bus
Why this is correct
All devices share a single cable.
Related concept
Read the scenario before looking for a memorised answer.
Triangle
Why it's wrong here
Not a valid network topology.
Circle
Why it's wrong here
Not a standard topology.
Common exam traps
CompTIA often tests that only the three standard topologies (mesh, star, bus) are correct, and traps candidates into selecting 'circle' or 'triangle' because they sound like plausible geometric network shapes.
Detailed technical explanation
Mesh topologies can be full mesh (every node connected to every other) or partial mesh (some redundant links). In a full mesh with n nodes, you need n(n-1)/2 physical links, which scales poorly but offers maximum resilience. Real-world examples include the Internet's core routers and some wireless mesh networks like Zigbee.
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.
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FAQ
Infrastructure — This question tests Infrastructure — Read the scenario before looking for a memorised answer..
The correct answer is: Mesh — A mesh topology connects each device to every other device, providing high redundancy and fault tolerance. It is a valid network topology type commonly used in WANs and wireless networks.
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.
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Last reviewed: Jun 30, 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.
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