- What the CWNA-109 Exam Actually Tests
- All 6 Domains: Weights, Topics, and What CWNP Expects
- Domain 1: Radio Frequency Technologies (15%)
- Domain 2: WLAN Regulations and Standards (20%)
- Domain 3: WLAN Protocols and Devices (20%)
- Domain 4: WLAN Network Architecture and Design Concepts (15%)
- Domain 5: WLAN Network Security (10%)
- Domain 6: RF Validation and Remediation (20%)
- How Scoring Works and What You Need to Pass
- A Domain-Sequenced Study Schedule
- Registration, Format, and Exam Day Mechanics
- Frequently Asked Questions
- The CWNA-109 exam covers 6 domains; three domains (Regulations & Standards, Protocols & Devices, RF Validation) each carry 20% weight.
- You need a 70% passing score (80% if you are a CWNP-authorized instructor) on 60 questions in 90 minutes.
- The exam fee is $274.99; it is available via Prometric testing centers and CWNP remote proctored options.
- CWNA-109 is valid through December 31, 2026; CWNA-110 is scheduled to launch in September 2026.
What the CWNA-109 Exam Actually Tests
The Certified Wireless Network Administrator credential, governed by CWNP, is the foundational professional certification for enterprise wireless networking. Unlike vendor-specific credentials that lock you into a single ecosystem, the CWNA tests vendor-neutral mastery of IEEE 802.11 standards, RF physics, wireless protocols, network architecture, security fundamentals, and site survey methodology.
The current version, CWNA-109, was released in September 2023. It delivers 60 questions in a multiple-choice and multiple-answer format, and you have 90 minutes to complete it. The exam is available at Prometric testing centers worldwide and through CWNP's remote proctored option, giving candidates flexibility on where and how they sit. Understanding what each of the six domains demands before you register is the single best investment you can make in your preparation time.
If you want a broader picture of difficulty and time investment before diving into domain specifics, the article How Hard Is the CWNA Exam? Complete Difficulty Guide 2026 covers candidate experience in detail. For full preparation strategy, the CWNA Study Guide 2026: How to Pass on Your First Attempt walks through a complete study plan. Here, the focus is entirely on the six content areas themselves.
All 6 Domains: Weights, Topics, and What CWNP Expects
CWNP publishes a detailed exam objectives document for CWNA-109 that breaks each domain into specific knowledge areas. The weight of each domain directly determines how many of the 60 exam questions cover that content. At 20% each, Domains 2, 3, and 6 together account for 36 of the 60 questions. Ignoring any one of them is not a viable strategy.
| Domain | Title | Exam Weight | Approx. Questions (of 60) |
|---|---|---|---|
| 1 | Radio Frequency Technologies | 15% | ~9 |
| 2 | WLAN Regulations and Standards | 20% | ~12 |
| 3 | WLAN Protocols and Devices | 20% | ~12 |
| 4 | WLAN Network Architecture and Design Concepts | 15% | ~9 |
| 5 | WLAN Network Security | 10% | ~6 |
| 6 | RF Validation and Remediation | 20% | ~12 |
Question counts are approximate because CWNP does not publish exact per-domain question totals. Multiple-answer questions are common throughout all domains, meaning a single question may require you to select two or three correct answers from five or six options. Missing one correct option in a multiple-answer question typically results in zero credit for that item.
Domain 1: Radio Frequency Technologies (15%)
Domain 1: Radio Frequency Technologies
This domain covers the physics and behavior of radio waves as they apply to 802.11 wireless networks. It is conceptually dense, but the volume of exam questions is moderate at roughly 9 of 60.
- RF characteristics: wavelength, frequency, amplitude, and phase
- How RF signals propagate, reflect, refract, diffract, and scatter in real environments
- Free path loss, multipath, and how these affect WLAN performance
- Antenna types, gain, polarization, and radiation patterns (omnidirectional vs. directional)
- EIRP, received signal strength, noise floor, SNR, and link budget calculations
- The 2.4 GHz, 5 GHz, and 6 GHz frequency bands and their channel plans
Candidates who struggle with Domain 1 most often do so because they try to memorize formulas without understanding the underlying physics. The CWNA exam tests application, not rote recall. You should be able to look at a scenario describing a warehouse, outdoor bridge, or dense office deployment and reason about why a specific RF behavior is occurring.
For a complete breakdown of every subtopic and practice strategy for this domain, see CWNA Domain 1: Radio Frequency Technologies (15%) - Complete Study Guide 2026.
Domain 2: WLAN Regulations and Standards (20%)
Domain 2: WLAN Regulations and Standards
Tied for the highest domain weight at 20%, this area tests your knowledge of regulatory bodies, spectrum allocation rules, and the IEEE 802.11 amendment family. Expect roughly 12 questions.
- Regulatory bodies: FCC (United States), ETSI (Europe), and ITU-R globally
- Maximum transmit power rules and EIRP limits by region and band
- IEEE 802.11 amendments: 802.11a/b/g/n/ac/ax (Wi-Fi 6) and 802.11be (Wi-Fi 7)
- Wi-Fi Alliance certifications and what they verify beyond the IEEE standard
- Channel bonding rules, guard intervals, and spatial streams by amendment
- 6 GHz regulatory frameworks (AFC, standard power vs. low power rules)
This domain rewards candidates who understand the relationship between regulatory requirements and real-world equipment configuration. Questions frequently present a scenario-such as deploying an outdoor bridge at maximum power in a specific country-and ask which regulatory constraint applies. Knowing that FCC rules differ from ETSI rules is not sufficient; you must understand the practical implications for equipment selection and configuration.
The full domain guide at CWNA Domain 2: WLAN Regulations and Standards (20%) - Complete Study Guide 2026 maps each IEEE amendment to its key technical characteristics so you can compare them side by side.
Domain 3: WLAN Protocols and Devices (20%)
Domain 3: WLAN Protocols and Devices
The second 20% domain covers how 802.11 networks actually operate at the protocol level, including MAC layer functions, frame types, and the hardware that implements them. This is often where candidates earn or lose the most ground.
- 802.11 MAC layer: CSMA/CA, DCF, EDCA (WMM), and QoS mechanisms
- Frame types: management, control, and data frames and their specific subtypes
- Association, authentication, and roaming processes at the frame level
- Access point, controller, and client adapter roles and capabilities
- BSS, ESS, IBSS, and mesh BSS topologies
- MU-MIMO, OFDMA, BSS coloring, and Target Wake Time (TWT) in Wi-Fi 6/6E
- Power save mechanisms: legacy PS-Poll, U-APSD, and TWT
Domain 3 is where hands-on experience with wireless gear pays dividends. Candidates who have configured access points, captured 802.11 frames in Wireshark, or troubleshot roaming issues will recognize the scenarios immediately. Those studying purely from books should supplement with packet captures and virtual lab exercises.
Detailed study guidance is available in CWNA Domain 3: WLAN Protocols and Devices (20%) - Complete Study Guide 2026.
Domain 4: WLAN Network Architecture and Design Concepts (15%)
Domain 4: WLAN Network Architecture and Design Concepts
At 15% weight (approximately 9 questions), this domain tests your ability to plan and design enterprise wireless networks, not just operate them after the fact.
- Autonomous vs. controller-based vs. cloud-managed architecture models
- Split MAC architecture and data forwarding options (local vs. centralized switching)
- AP placement principles for coverage, capacity, and roaming
- Cell overlap requirements and co-channel interference tradeoffs
- Outdoor bridging and mesh network design
- VLAN design, SSID-to-VLAN mapping, and Layer 3 roaming
- High-density design considerations for stadiums, auditoriums, and conference centers
Design questions on the CWNA are scenario-based. CWNP presents a business requirement-a hospital needing seamless roaming for mobile carts, or a campus requiring outdoor connectivity between buildings-and asks you to select the most appropriate architecture or configuration approach. Understanding the tradeoffs between design options is more important than memorizing product specifications.
See CWNA Domain 4: WLAN Network Architecture and Design Concepts (15%) - Complete Study Guide 2026 for scenario-based practice strategies.
Domain 5: WLAN Network Security (10%)
Domain 5: WLAN Network Security
The smallest domain by weight at 10% (roughly 6 questions), but do not dismiss it. Security questions on CWNA-109 require precise knowledge of specific protocols and attack types, not general awareness.
- WPA2 and WPA3 personal and enterprise modes, including SAE (Simultaneous Authentication of Equals)
- 802.1X/EAP framework and common EAP methods: EAP-TLS, PEAP, EAP-TTLS
- RADIUS server integration and the AAA model
- Wireless attack types: rogue APs, evil twin attacks, deauthentication attacks, KRACK
- WIPS/WIDS functionality and how rogue detection works
- Management Frame Protection (802.11w) and its role in mitigating deauth attacks
- Guest network isolation, captive portals, and segmentation strategies
With only about 6 questions, Domain 5 is not where most candidates pass or fail the exam. However, missing every security question while barely passing the larger domains could drop you below 70%. Treat this domain as a mandatory floor, not an optional area.
The full guide for this domain is at CWNA Domain 5: WLAN Network Security (10%) - Complete Study Guide 2026.
Domain 6: RF Validation and Remediation (20%)
Domain 6: RF Validation and Remediation
Tied for the highest weight at 20%, this domain covers the practical process of verifying that a WLAN performs as designed and fixing it when it does not. It is the most applied, real-world domain on the exam.
- Site survey types: predictive, passive, active, and spectrum analysis surveys
- Site survey tools: spectrum analyzers, protocol analyzers, and RF planning software
- Reading and interpreting RF heat maps and coverage plots
- Identifying and classifying RF interference: narrowband, wideband, and non-Wi-Fi sources
- Throughput testing, VoWLAN validation, and location-based services requirements
- Troubleshooting methodology: isolating coverage, capacity, interference, and configuration issues
- Post-deployment validation deliverables and reporting
Domain 6 is where candidates with real-world site survey experience have a measurable advantage. If you have never conducted a wireless site survey, invest time in understanding the process end-to-end. CWNP's exam questions often describe a symptom-intermittent drops in a specific area, low throughput in a conference room, or client association failures-and ask you to identify the most appropriate diagnostic step.
Detailed coverage of every subtopic is in CWNA Domain 6: RF Validation and Remediation (20%) - Complete Study Guide 2026.
How Scoring Works and What You Need to Pass
CWNA-109 uses a scaled scoring model. The passing threshold is 70% for standard candidates. If you are a CWNP-authorized instructor, the passing requirement increases to 80%. With 60 questions, the difference between passing and failing at the 70% threshold is a matter of answering fewer than 18 questions incorrectly.
The exam fee of $274.99 is paid at registration. There is no partial refund once you schedule, so candidates who register before they are ready risk both the fee and the time cost of retaking. For a full breakdown of all associated costs-study materials, retake fees, and renewal costs-see CWNA Certification Cost 2026: Complete Pricing Breakdown.
A Domain-Sequenced Study Schedule
Because the CWNA domains build on each other, the sequence in which you study them matters. RF physics (Domain 1) underpins everything else. Regulations and standards (Domain 2) give context to the protocols (Domain 3). Architecture (Domain 4) depends on understanding how protocols and devices work. Security (Domain 5) layers on top of the network. Validation (Domain 6) assumes you can recognize what a healthy RF environment looks like.
Domain 1: RF Technologies
- Master RF wave behavior, propagation, and antenna theory
- Build a reference sheet for units: dBm, dBi, dBd, mW conversions
- Practice link budget calculations with real-world scenarios
Domain 2: Regulations and Standards
- Build a comparison table of 802.11 amendments: frequency, max data rate, MIMO streams
- Memorize FCC vs. ETSI power limits for 2.4, 5, and 6 GHz bands
- Study Wi-Fi Alliance certification programs and what each adds to the IEEE standard
Domain 3: Protocols and Devices
- Capture and analyze 802.11 management frames using Wireshark or an equivalent tool
- Map out the full association and roaming process from authentication to data transfer
- Study MU-MIMO and OFDMA operation in Wi-Fi 6 deployments
Domains 4 and 5: Architecture and Security
- Work through architecture design scenarios: autonomous vs. controller vs. cloud
- Map EAP types to their authentication mechanisms and certificate requirements
- Study rogue AP detection and WIPS response procedures
Domain 6: RF Validation + Full Review
- Walk through the complete site survey workflow for at least three environment types
- Practice interpreting heat maps and identifying interference sources from spectrum analyzer data
- Complete timed practice tests at CWNA Exam Prep practice tests to simulate exam pacing
Registration, Format, and Exam Day Mechanics
CWNA-109 is registered directly through CWNP or through Prometric's scheduling portal. The $274.99 fee covers one exam attempt. The exam is delivered in English only. Two delivery options exist: in-person at a Prometric testing center or via CWNP's remote proctored platform. Remote proctored candidates must meet technical requirements for their testing environment-check CWNP's current requirements for webcam, browser, and room setup before exam day.
The 90-minute time limit is tight but manageable for well-prepared candidates. With 60 questions, that works out to 90 seconds per question on average-sufficient time to read scenario-based questions carefully if you do not linger excessively on difficult items. Flag questions you are uncertain about, continue through the exam, and return to flagged items after your first pass.
For additional practice with the question format and difficulty level before your exam date, our full practice test library mirrors the multiple-choice and multiple-answer structure of CWNA-109 across all six domains. The article Best CWNA Practice Questions 2026: What to Expect on the Exam explains how to use practice exams strategically rather than just as a scoring benchmark.
Key Takeaway
The three 20% domains-WLAN Regulations and Standards, WLAN Protocols and Devices, and RF Validation and Remediation-together account for 60% of your exam score. Achieving strong performance in all three is the single most reliable path to clearing the 70% passing threshold.
Domain 6 (RF Validation and Remediation) and Domain 1 (Radio Frequency Technologies) are most frequently reported as difficult by candidates without hands-on site survey experience. Domain 6 carries 20% weight and requires applied troubleshooting judgment, not just factual recall. Domain 1 requires understanding RF physics well enough to apply it in novel scenarios, which is harder than memorizing definitions.
CWNP does not require any prerequisites to register for CWNA-109, but the organization recommends approximately one year of WLAN experience and a solid TCP/IP foundation. Candidates without hands-on exposure can pass, but they must compensate with more thorough scenario-based practice, particularly in Domains 3, 4, and 6, where applied judgment is tested heavily.
CWNP does not publish exact per-domain question counts. Based on the published domain weights and 60 total questions, each 20% domain yields approximately 12 questions, each 15% domain yields approximately 9 questions, and the 10% Domain 5 yields approximately 6 questions. These are estimates; actual question distribution may vary slightly from administration to administration.
CWNA-110 is scheduled for release in September 2026 and will likely reflect updated content to cover emerging Wi-Fi 7 (802.11be) topics and any updated regulatory frameworks. CWNA-109 remains the active exam version through December 31, 2026. If you plan to test near the transition, register under whichever version is active at your exam date and confirm the current exam objectives on CWNP's official website.
The CWNA is the entry point for all advanced CWNP credentials, including CWSP, CWDP, CWAP, and the expert-level CWNE. It is recognized by enterprise IT employers across healthcare, education, hospitality, and government sectors. Whether the return on investment justifies the cost depends on your current role and career goals; the article Is the CWNA Certification Worth It? Complete ROI Analysis 2026 examines this question in detail.
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Test your knowledge across all six CWNA domains with our full-length practice exams. Questions mirror the multiple-choice and multiple-answer format of CWNA-109, with detailed explanations for every answer so you understand not just what is correct, but why.
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