Cisco WLSD 300‑110 Practice Exam
About the Cisco WLSD 300-110 exam
Exam at a glance
The professional-tier CCNP Wireless concentration exam for Designing Cisco Wireless Networks, replacing 300-425 ENWLSD as part of Cisco's wireless-track relaunch on March 19, 2026.
Domain weighting
- Wireless Site Survey — 25%
- Wired and Wireless Infrastructure — 30%
- Mobility — 25%
- WLAN High Availability — 20%
Where it sits in the track
- Core exam — 350-101 WLCOR. Required for everyone. Covers wireless architecture, infrastructure, network access, services, security, and assurance. Also qualifies you for the CCIE Wireless lab.
- Concentration exam — pick one. Options are 300-110 WLSD (design — this page) or 300-120 WLSI (implementation). Together with WLCOR, either Concentration earns CCNP Wireless plus a stand-alone Cisco Certified Specialist credential.
Prerequisites
No formal prerequisites. Cisco recommends 3-5 years of enterprise wireless implementation experience. You should be comfortable with 802.11 standards through Wi-Fi 6E and Wi-Fi 7, CAPWAP / FlexConnect controller architecture, and at least one professional site-survey tool (Cisco DCA, Ekahau Pro, or AirMagnet Survey Pro).
Why take this certification
- Senior wireless design is hard to outsource. RF design needs physical site presence — floor walks, AP placement validation, predictive surveys against real building materials. Wi-Fi designers are one of the few network specialties where on-site work is still routine, which keeps demand strong and salaries competitive.
- Wi-Fi 6E and Wi-Fi 7 raised the design bar. 6 GHz (Wi-Fi 6E) and 320 MHz channels with Multi-Link Operation (Wi-Fi 7) make spectrum planning meaningfully harder than the 2.4/5 GHz era. The 2026 WLSD blueprint reflects this; certified designers are scarce.
- Competitive salary band. Senior wireless engineers and design consultants in the US typically earn $115,000–$140,000 USD per year, with specialist consultants and integrator design leads reaching $150,000+ (sources: Glassdoor and Indeed, CCNP Wireless / Senior Wireless Engineer roles, December 2025).
- Pairs naturally with Ekahau / Cisco DCA tooling. Most employers expect WLSD-tier designers to also be fluent in the leading survey platforms — the credential opens the door, the tooling fluency wins the project.
What you'll learn in the WLSD 300-110 exam
WLSD validates that you can design enterprise wireless networks end-to-end — pre-deployment site surveys, RF coverage modeling, mobility/roaming architecture, and specialized scenarios (outdoor, mesh, high-density, IoT). The exam is scenario-heavy: most questions describe a building, environment, or business requirement and ask you to choose the correct design decision.
Core areas you'll be tested on
- Wireless site surveys: predictive (Ekahau Pro / Cisco DCA / Hamina), passive (validation), active, and spectrum surveys. Floor-plan calibration, AP-on-a-stick methodology, attenuation values for common building materials, hidden-node analysis.
- RF design: 2.4 GHz / 5 GHz / 6 GHz channel planning, transmit-power tuning, co-channel and adjacent-channel interference, signal-to-noise ratio targets per use case (voice, video, data, location), antenna selection (omni vs patch vs Yagi).
- Wired and wireless infrastructure: Catalyst 9800-series controller deployment models (appliance, embedded, cloud), CAPWAP tunneling, FlexConnect for branch sites, controller redundancy (HA SSO + N+1), AP licensing and group design.
- Mobility and roaming: intra-controller, inter-controller (mobility groups, mobility domains), Layer 2 vs Layer 3 roaming, 802.11r Fast Transition / 802.11k / 802.11v assistance for client steering, OKC (Opportunistic Key Caching) for legacy clients.
- Specialized coverage: outdoor mesh networks (1572 / IW9167 series), point-to-point and point-to-multipoint bridging, RF design for warehouses and high-ceiling spaces, location-services design (FastLocate, hyperlocation), IoT-tier design considerations (low-power / battery clients).
Design patterns you'll need to recognize
- Matching survey type to deployment phase (predictive for pre-install, passive/validation post-install, AP-on-a-stick for irregular spaces).
- Designing for client capability tiers — Wi-Fi 5 legacy devices vs Wi-Fi 6/6E vs Wi-Fi 7 — without breaking the lowest common denominator.
- Sizing controllers and mobility groups for a multi-site enterprise; choosing FlexConnect vs centralized switching per branch profile.
- Designing high-density spaces (auditoriums, lecture halls, stadium concourses) with directional antennas and tight cell sizes.
- Outdoor mesh layouts — backhaul vs access radios, RAP / MAP topology, link-budget calculations across spans.
How the practice exams help
Each free question and every premium exam mirrors the scenario-style format Cisco uses on WLSD — a building or environment description with constraints, four to five plausible options, one correct answer. Detailed explanations cover not just why the right answer is right but why the distractors are wrong, so you learn the design trade-offs instead of memorizing facts.
How to prepare for the WLSD 300-110 exam
A successful WLSD preparation strategy combines blueprint-driven study, real survey-tool fluency, and hands-on time on a Wireless LAN Controller. Recommended approach:
- Week 1 — Blueprint walkthrough. Download the official 300-110 WLSD exam topics PDF from the Cisco Learning Network and map each subtopic to a resource (book chapter, video, or lab). Read the CCNP and CCIE Enterprise Wireless WLSD 300-110 Official Cert Guide (Cisco Press) front-to-back as your spine — it tracks the blueprint directly. The prior ENWLSD 300-425 Official Cert Guide covers 90%+ of the same material and is acceptable while the WLSD edition rolls out.
- Weeks 2-3 — RF design and site survey theory. Internalize the survey methodology: predictive vs passive vs active vs spectrum, when each one applies. Build muscle memory on common building-material attenuation values (drywall ~3 dB, brick ~6-10 dB, concrete ~15-20 dB, metal mesh ~25+ dB), SNR/RSSI targets per use case (voice ≥25 dB SNR, location ≥-65 dBm), and the link-budget math for outdoor spans.
- Week 4 — Hands-on survey tool practice. The exam expects you to recognize the output of a predictive survey, a passive heatmap, and a spectrum capture, plus what each one is for. Get a trial of Ekahau Pro or use Cisco DCA (free with a Cisco Learning Network Premium subscription). Run one predictive design against a real floor plan you have access to — your own office, a friend's office, a public building plan. The act of placing APs, choosing antennas, and seeing the resulting heatmap is what locks in WLSD design intuition.
- Weeks 5-6 — Controller and mobility lab. Spin up a Catalyst 9800-CL (the cloud / virtual WLC; free, runs on VMware/KVM/HyperV). Pair it with 2-3 Catalyst 9100-series APs (or 2800/3800 series — secondhand on eBay for $100-200) and practice: building mobility groups, configuring 802.11r/k/v, setting up FlexConnect branch designs, walking through HA SSO failover. Cisco's free dCloud service also hosts pre-built 9800 lab pods you can use for 4-hour sessions.
- Weeks 7-8 — Specialized scenarios + practice exams. Drill outdoor mesh design (RAP/MAP topology, backhaul-radio planning), high-density design (auditoriums, stadiums), and location-services design (FastLocate, hyperlocation with the right AP hardware). Take timed practice exams to find weak spots. Aim for consistent 80%+ scores before scheduling the real exam.
Recommended timeline
6-10 weeks of focused study (8-12 hours per week) for engineers with 3+ years of enterprise wireless implementation experience. Plan 12-16 weeks if you are new to designing wireless and pair the study with structured survey-tool practice.
Official resources
The authoritative source for the WLSD blueprint is the official 300-110 WLSD Exam Topics page on the Cisco Learning Network — bookmark it and re-check before booking the exam (Cisco refreshes blueprints periodically). The WLSD 300-110 Official Cert Guide (Cisco Press) is the primary book. Cisco's CCNP Wireless track page lists current training courses and the relaunch FAQ.
Frequently asked questions
What is the Cisco 300-110 WLSD exam?
300-110 WLSD (Designing Cisco Wireless Networks) is a professional-tier concentration exam in the relaunched CCNP Wireless track. It validates your ability to design enterprise wireless networks — site surveys, RF planning, mobility and roaming, coverage design for general and specialized environments. Cisco relaunched the CCNP Wireless track on March 19, 2026, replacing the prior 300-425 ENWLSD code with 300-110 WLSD. The blueprint content is largely the same as ENWLSD.
What are the prerequisites for the WLSD 300-110 exam?
There are no formal prerequisites to sit 300-110. Cisco recommends 3-5 years of experience implementing enterprise wireless networks. To earn the CCNP Wireless credential you must pass 350-101 WLCOR (the Core exam) plus one Concentration exam — 300-110 WLSD is one option. Familiarity with 802.11 standards (a/b/g/n/ac/ax/be), CAPWAP, Cisco Wireless LAN Controllers, and at least one site-survey tool (Cisco DCA, Ekahau Pro, or AirMagnet) is strongly recommended.
What's the difference between WLSD (300-110) and WLCOR (350-101)?
350-101 WLCOR is the required Core exam for CCNP Wireless and covers implementation breadth — wireless architecture, infrastructure, network access, network services, security, and assurance. 300-110 WLSD is a Concentration exam focused exclusively on design — site survey methodology, RF coverage modeling, mobility/roaming design, and specialized scenarios. You need WLCOR plus one Concentration (WLSD or WLSI) to earn CCNP Wireless. WLCOR also qualifies you to sit the CCIE Wireless lab.
Why was the exam renamed from 300-425 ENWLSD to 300-110 WLSD?
Cisco relaunched the CCNP Wireless track on March 19, 2026 and renumbered all the exams to fit a cleaner, dedicated Wireless code series (WLCOR / WLSD / WLSI) instead of the prior Enterprise-prefixed codes (ENCOR / ENWLSD / ENWLSI). Content is largely unchanged from the ENWLSD blueprint — site survey, RF design, mobility, specialized coverage — so existing ENWLSD study material remains roughly 90%+ relevant. The renumbering also restored CCNP Wireless as a dedicated track in its own right rather than a sub-branch of CCNP Enterprise.
How much does the 300-110 exam cost and how do I register?
The exam fee is $300 USD globally (converted to local currency). Registration is through Pearson VUE — either at an authorized testing center or via online proctoring. Book directly from your Cisco Certification account at cisco.com/go/certifications. If you fail, you must wait 5 days before retaking; after a fourth failure on the same exam you must wait 180 days. There is no cap on total attempts beyond the wait windows.
How long does it take to prepare for WLSD 300-110?
Most experienced wireless engineers need 6-10 weeks of focused study (8-12 hours/week). New-to-wireless candidates should plan 12-16 weeks and pair WLSD prep with hands-on site survey practice using Cisco DCA or Ekahau Pro. Lab time is the differentiator — design questions reward people who have actually run surveys, modeled RF on a real floor plan, and tuned controller mobility groups, not just read about them.
What hands-on equipment do I need to prepare for WLSD?
Realistically you need access to at least one Cisco Wireless LAN Controller (9800-CL virtual is sufficient and free), 2-3 Catalyst access points (9100 series ideal, Aironet 2800/3800 acceptable), and a survey tool. Ekahau Pro and Cisco DCA are the industry standards for predictive and validation surveys; AirMagnet Survey Pro is the third common option. Cisco Modeling Labs (CML) is useful for controller config but cannot model RF — pair it with a real site survey lab or virtual survey software. dCloud offers free Cisco-hosted lab pods including 9800 WLC scenarios.
How long is the CCNP Wireless certification valid and how do I recertify?
Cisco certifications are valid for 3 years from the date you pass. You can recertify by passing any active Professional or Expert-tier exam, by passing a combination of Associate + Specialist exams, or via Cisco's Continuing Education program — earning at least 80 CE credits over the 3-year cycle (40 of which must be from approved Cisco training items). The CE path is the only non-exam recertification option Cisco offers and is the typical choice for working engineers.
Is CCNP Wireless still valuable in a Wi-Fi 6E / Wi-Fi 7 era?
Yes, arguably more than ever. Wi-Fi 6E (6 GHz) and Wi-Fi 7 (320 MHz channels, MLO, BSS coloring) make RF design materially harder than it was in the 5 GHz era — more spectrum to plan, new propagation behavior on 6 GHz, denser channel reuse. Senior wireless designers in the US average $115,000-$140,000 USD per year and the role is one of the few network specialties where remote work is uncommon (you need physical site access for surveys). The 2026 CCNP Wireless relaunch updated the blueprint to cover Wi-Fi 6E and Wi-Fi 7 design considerations.
What is Cisco's retake policy if I fail 300-110?
Cisco's standard retake policy applies. After failing 300-110 you must wait at least 5 calendar days before re-attempting. After a fourth failure on the same exam you must wait 180 days before another attempt. There is no lifetime cap on attempts beyond the wait windows. Each attempt requires a new $300 payment. Cisco occasionally offers retake vouchers and discounts to Cisco Learning Network Premium subscribers.