- A
Enable WPA2-PSK with AES encryption.
Why wrong: WPA2-PSK provides security but does not address roaming speed; it can cause delays during handoffs.
- B
Set all access points to the same SSID and password.
Why wrong: Same SSID is necessary for roaming but not sufficient; without fast roaming, handoffs may still be slow.
- C
Implement 802.11r Fast Roaming.
802.11r reduces authentication time during roaming, ensuring seamless connectivity for mobile devices.
- D
Use a wireless controller with load balancing.
Why wrong: Load balancing distributes clients but does not directly improve roaming speed or handoff performance.
Question 558 of 1,020
Enabling Fast Roaming for Handheld Scanners
This 220-1201 practice question tests your understanding of wireless networking technologies. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 technician is deploying a wireless network in a large warehouse and needs to ensure seamless roaming for handheld scanners as workers move between access points. Which technology should the technician configure to support this requirement?
Quick Answer
The answer is 802.11r Fast Roaming. This technology is the correct choice because it streamlines the authentication process when a handheld scanner moves between access points, reducing the time required for re-authentication from hundreds of milliseconds to under fifty milliseconds, which prevents the brief disconnects that would otherwise interrupt data transmission. On the CompTIA A+ Core 1 220-1201 exam, this concept tests your understanding of wireless infrastructure for high-mobility environments like warehouses, where seamless roaming between access points is critical for productivity. A common trap is confusing 802.11r with 802.11k (which provides neighbor lists) or 802.11v (which manages network load balancing), but remember that only 802.11r directly accelerates the handoff by caching keys. For a memory tip, think of the "r" in 802.11r as standing for "rapid re-authentication."
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
✓
Implement 802.11r Fast Roaming.
802.11r Fast Roaming (also known as Fast BSS Transition) is the correct technology because it reduces the time required for a client device to re-authenticate and reassociate when moving between access points. In a large warehouse with handheld scanners, this minimizes latency and prevents disconnections during active sessions, ensuring seamless roaming. The other options either address security or basic connectivity but do not specifically optimize the handoff process.
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.
- ✗
Enable WPA2-PSK with AES encryption.
Why it's wrong here
WPA2-PSK provides security but does not address roaming speed; it can cause delays during handoffs.
- ✗
Set all access points to the same SSID and password.
Why it's wrong here
Same SSID is necessary for roaming but not sufficient; without fast roaming, handoffs may still be slow.
- ✓
Implement 802.11r Fast Roaming.
Why this is correct
802.11r reduces authentication time during roaming, ensuring seamless connectivity for mobile devices.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a wireless controller with load balancing.
Why it's wrong here
Load balancing distributes clients but does not directly improve roaming speed or handoff performance.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that simply using the same SSID and password (Option B) is sufficient for seamless roaming, but the trap is that this only provides basic connectivity—without a fast roaming protocol like 802.11r, clients still experience noticeable delays during handoffs due to full re-authentication.
Detailed technical explanation
How to think about this question
802.11r uses a key hierarchy that allows the client to derive a new Pairwise Transient Key (PTK) from a cached Pairwise Master Key (PMK) without requiring a full 802.1X/EAP exchange with the RADIUS server. This reduces the handoff time from hundreds of milliseconds to under 50 ms, which is critical for real-time applications like VoIP or inventory scanning. In practice, both the APs and clients must support 802.11r, and it is often used in conjunction with 802.11k (neighbor reports) and 802.11v (network assisted roaming) for optimal performance.
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 practitioner preparing for the 220-1201 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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Wireless Networking Technologies — study guide chapter
Learn the concepts, then practise the questions
- →
Wireless Networking Technologies practice questions
Targeted practice on this topic area only
- →
All 220-1201 questions
1,020 questions across all exam domains
- →
CompTIA A+ Core 1 220-1201 study guide
Full concept coverage aligned to exam objectives
- →
220-1201 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related 220-1201 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Mobile Device Hardware Servicing practice questions
Practise 220-1201 questions linked to Mobile Device Hardware Servicing.
Mobile Device Connection Methods practice questions
Practise 220-1201 questions linked to Mobile Device Connection Methods.
Mobile Device Accessories practice questions
Practise 220-1201 questions linked to Mobile Device Accessories.
Mobile Device Network Connectivity practice questions
Practise 220-1201 questions linked to Mobile Device Network Connectivity.
Mobile Device Application Support practice questions
Practise 220-1201 questions linked to Mobile Device Application Support.
Network Protocols practice questions
Practise 220-1201 questions linked to Network Protocols.
TCP & UDP Ports practice questions
Practise 220-1201 questions linked to TCP & UDP Ports.
Wireless Networking Technologies practice questions
Practise 220-1201 questions linked to Wireless Networking Technologies.
Network Services practice questions
Practise 220-1201 questions linked to Network Services.
Network Configuration Concepts practice questions
Practise 220-1201 questions linked to Network Configuration Concepts.
Common Networking Hardware practice questions
Practise 220-1201 questions linked to Common Networking Hardware.
IP Addressing practice questions
Practise 220-1201 questions linked to IP Addressing.
Practice this exam
Start a free 220-1201 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this 220-1201 question test?
Wireless Networking Technologies — This question tests Wireless Networking Technologies — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Implement 802.11r Fast Roaming. — 802.11r Fast Roaming (also known as Fast BSS Transition) is the correct technology because it reduces the time required for a client device to re-authenticate and reassociate when moving between access points. In a large warehouse with handheld scanners, this minimizes latency and prevents disconnections during active sessions, ensuring seamless roaming. The other options either address security or basic connectivity but do not specifically optimize the handoff process.
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.
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 →
Same concept, more angles
1 more ways this is tested on 220-1201
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A technician is deploying a wireless network in a large warehouse with metal shelving. The goal is to provide seamless roaming for handheld scanners. Which technology should the technician implement to ensure clients quickly switch between access points without dropping connections?
hard- ✓ A.Enable 802.11r (Fast Roaming) on the access points
- B.Use a wireless mesh topology
- C.Configure beamforming on each access point
- D.Deploy MIMO antennas
Why A: 802.11r, also known as Fast BSS Transition or Fast Roaming, enables clients to authenticate and reassociate with a new access point using a cached PMK (Pairwise Master Key) from the initial full authentication, reducing the handshake process from four EAP frames to two. In a warehouse with metal shelving causing signal attenuation, this minimizes the time clients spend scanning and reconnecting, ensuring seamless roaming for handheld scanners without dropping connections.
Keep practising
More 220-1201 practice questions
- During a network cable installation, a technician needs to verify that a newly run Cat6 cable is properly terminated and…
- A user connects a 4K monitor to their laptop using a USB-C port. The monitor is detected, but the resolution is stuck at…
- A technician is troubleshooting a laptop that will not charge. The battery is removable, and the power adapter works on…
- A customer brings in a smartphone with a broken charging port. They want the port replaced. During disassembly, the tech…
- A user reports that their laptop's keyboard types random characters when certain keys are pressed. The laptop has not be…
- A technician is troubleshooting a laptop that shuts down randomly after a few minutes of use. The fan is spinning, and t…
Last reviewed: Jul 4, 2026
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.
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.