Question 559 of 1,020
Common Networking HardwareeasyMultiple ChoiceObjective-mapped

220-1201 Common Networking Hardware Practice Question

This 220-1201 practice question tests your understanding of common networking hardware. 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.

A small office has a single internet connection and needs to provide wired network access to 20 computers. They also need to allow guests to connect wirelessly but keep the guest traffic separate from the internal network. Which single device can handle both wired switching and wireless access with VLAN support?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Wireless router

A wireless router (often a small business or SOHO router) integrates a switch, a router, and a wireless access point into one device. It can provide wired switching for the 20 computers and wireless access for guests, and with VLAN support, it can isolate guest traffic from the internal network using 802.1Q tagging or built-in guest network features. This makes it the single device that meets all the requirements.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Managed switch

    Why it's wrong here

    A managed switch provides wired switching and VLAN support but does not include wireless access.

  • Wireless router

    Why this is correct

    A wireless router combines a switch, router, and wireless access point, and many support VLANs for guest network isolation.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Wireless access point

    Why it's wrong here

    A wireless access point only provides wireless connectivity; it does not include a wired switch.

  • Hub

    Why it's wrong here

    A hub is a simple repeater that does not support VLANs or wireless, and is unsuitable for a modern network.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse a wireless access point (which only bridges wireless to wired) with a wireless router (which includes routing, switching, and wireless), leading them to choose Option C despite its lack of integrated switching and VLAN support.

Detailed technical explanation

How to think about this question

A wireless router with VLAN support typically uses 802.1Q trunking to separate guest traffic from internal traffic, often assigning the guest network to a different VLAN ID (e.g., VLAN 10) and the internal network to another (e.g., VLAN 1). The router's built-in DHCP server can serve different IP subnets per VLAN, and inter-VLAN routing is disabled or restricted via ACLs to prevent guest access to internal resources. In a real-world deployment, this allows the office to provide internet-only access to guests while keeping sensitive internal devices isolated.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.

Visual reference

Switch VLAN 10 Sales (192.168.10.0/24) PC-A PC-B VLAN 20 HR (192.168.20.0/24) PC-C PC-D Router VLANs isolate traffic — inter-VLAN routing requires a Layer 3 device

What to study next

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FAQ

Questions learners often ask

What does this 220-1201 question test?

Common Networking Hardware — This question tests Common Networking Hardware — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Wireless router — A wireless router (often a small business or SOHO router) integrates a switch, a router, and a wireless access point into one device. It can provide wired switching for the 20 computers and wireless access for guests, and with VLAN support, it can isolate guest traffic from the internal network using 802.1Q tagging or built-in guest network features. This makes it the single device that meets all the requirements.

What should I do if I get this 220-1201 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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This 220-1201 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 220-1201 exam.