300-425 · ● Active · Professional · Cisco
Exam Facts
| Attribute | Detail |
|---|---|
| Full Name | Designing Cisco Enterprise Wireless Networks |
| Code | 300-425 |
| Short Code | ENWLSD |
| Version | v1.1 |
| Format | Multiple-choice, Drag-and-drop, Testlet |
| Duration | 90 minutes |
| Questions | 55–65 questions |
| Passing Score | 750–850 / 1000 (scaled) · ~75–80% recommended |
| Cost (USD) | $300 |
| Cost (GBP) | ~£240 |
| Cost (EUR) | ~€280 |
| Cost (AUD) | ~AU$480 |
| Cost (ZAR) | ~R5,400 |
| Validity | 3 years from pass date |
| Exam Status | Active · Last updated March 30, 2026 |
| Available | Pearson VUE testing centers & online proctored |
About
The 300-425 ENWLSD is a design-focused concentration exam under the CCNP Enterprise certification. It pairs with 300-430 ENWLSI (Implementation/Installation), allowing candidates to specialize in either design or implementation aspects of enterprise wireless networks.
Key Distinction:
- 300-425 ENWLSD — Design, planning, site surveys, RF engineering, architecture
- 300-430 ENWLSI — Deployment, configuration, troubleshooting, hands-on lab tasks
Together with the core ENCOR 350-401 exam, passing either concentration qualifies for the CCNP Enterprise certification. The ENWLSD exam validates the ability to design enterprise-scale wireless networks across campus, branch, retail, and outdoor environments.
Domain Context — Networking / Wireless
Enterprise wireless design requires deep knowledge across multiple layers:
- RF Physics & Site Surveys — Radio frequency propagation, path loss, interference analysis, coverage prediction
- Infrastructure Architecture — Controller placement, redundancy, scaling, FlexConnect vs. Central Switching
- Mobility & Roaming — Layer 2 and Layer 3 mobility, PMKID caching, 802.11r/k/v/w optimization
- High Availability — Redundancy, failover, load balancing, backup controllers
- QoS & Multicast — Wireless QoS design, voice/video prioritization, multicast in wireless environments
- Catalyst Center & DNA — Controller architecture, device provisioning, policy design
- Security by Design — 802.1X/EAP, encryption, threat mitigation, network segmentation
- Outdoor & Mesh — Outdoor AP design, mesh networking, long-range links
Topics Covered (by Exam Blueprint)
The ENWLSD exam blueprint is organized into major competency areas:
1. Wireless Site Survey & RF Assessment (~20–25%)
- Conduct site survey methodology and documentation
- Identify RF coverage requirements and constraints
- Analyze interference (co-channel, adjacent-channel, non-Wi-Fi sources)
- Determine AP density and placement strategies
- Calculate link budget and path loss models
- Predict coverage using propagation models (Free Space, ITU, log-distance)
- Document site survey findings and recommendations
Key Concepts:
- Fresnel zones and antenna placement
- Multipath and fading effects
- Environmental factors (materials, humidity, frequency)
- Channel planning and channel reuse
- AP selection based on transmit power and antenna gain
2. Wired and Wireless Infrastructure Design (~25–30%)
- Design network architecture (central switching vs. FlexConnect)
- Plan controller placement and redundancy
- Design Cisco Catalyst Center (formerly DNA Center) architecture
- Design Meraki cloud-managed wireless networks
- Design Cisco AireOS controller-based networks
- Plan power distribution (PoE budgeting and uplink capacity)
- Design roaming domains and mobility groups
- Plan multicast replication trees in wireless networks
- Design location services architecture
Key Concepts:
- Centralized vs. distributed switching
- Controller high availability (HA) design
- Guest and corporate SSID segmentation
- Bandwidth provisioning (air time vs. wired capacity)
- Mesh backhaul design
3. Mobility & Roaming Design (~20–25%)
- Design intra-controller mobility (Layer 2 roaming)
- Design inter-controller mobility (Layer 3 roaming)
- Design 802.11k (neighbor reports) deployments
- Design 802.11v (BSS transition management)
- Design 802.11w (management frame protection)
- Design 802.11r (fast roaming) / FT (Fast Transition)
- Plan PMKID caching for fast reconnection
- Design roaming latency requirements for voice/video
Key Concepts:
- Roaming latency vs. throughput tradeoffs
- Mobility anchor points in multi-controller designs
- AP redundancy and neighbor optimization
- Client-side vs. network-side optimization
4. WLAN High Availability & Redundancy (~15–20%)
- Design controller failover and load balancing
- Design N+1 and N+2 redundancy models
- Plan backup and disaster recovery
- Design connection admission control (CAC)
- Assess capacity planning for high-density deployments
- Design stateful switchover (SSO) in AireOS
- Plan wireless network resilience
Key Concepts:
- Single point of failure identification
- Backup WAN links for controller connectivity
- AP anchor failover
- DNS and DHCP design for resilience
5. Quality of Service (QoS) Design (~10–15%)
- Design wireless QoS policy (per-SSID, per-user, per-application)
- Plan bandwidth allocation and traffic policing
- Design voice and video prioritization
- Plan 802.11e (EDCA) configuration
- Design QoS for guest networks
- Plan QoS verification and monitoring
Key Concepts:
- DSCP marking and mapping to wireless queues
- CAC for real-time traffic
- Airtime fairness configuration
- Best-effort downgrade strategies
6. Location Services & Geolocation (~5–10%)
- Design Cisco DNA Spaces architecture
- Plan indoor location accuracy requirements
- Design location-based analytics and insights
- Integrate presence detection and asset tracking
- Plan location data privacy and security
Key Concepts:
- Triangulation and fingerprinting methods
- Location accuracy vs. cost tradeoffs
- Real-time location system (RTLS) integration
7. Security Design (~10–15%)
- Design 802.1X/EAP authentication
- Plan encryption (WPA2/WPA3) and ciphers
- Design network segmentation (VLAN, ACLs)
- Plan threat defense (rogue AP detection, DoS mitigation)
- Design compliance requirements (PCI-DSS, HIPAA)
- Plan certificate and key management
Key Concepts:
- Pre-shared key vs. enterprise authentication
- Client certificate provisioning
- Captive portal vs. authenticated access
- Guest SSID design
8. Monitoring, Analytics & Lifecycle (~5–10%)
- Design monitoring and alerting systems
- Plan RF analytics and visualization
- Design health checks and KPIs
- Plan lifecycle management and software updates
- Design AP provisioning workflows
Key Concepts:
- SNMP and syslog integration
- Real-time health dashboards
- Firmware management strategies
Common Job-Ready Skills
After passing 300-425 ENWLSD, candidates can demonstrate:
✓ Conduct RF site surveys and interpret results ✓ Design AP density and placement strategies ✓ Architect wireless LANs for enterprises (100–10,000+ users) ✓ Design multi-controller deployments with roaming ✓ Plan high-availability wireless networks ✓ Design QoS for voice, video, and data traffic ✓ Integrate Catalyst Center for provisioning and assurance ✓ Design outdoor and mesh wireless extensions ✓ Plan DNA Spaces for location intelligence ✓ Design security controls (802.1X, encryption, segmentation) ✓ Optimize roaming for mobile users (seamless handoff) ✓ Design redundancy and disaster recovery
Recommended Courses & Resources
Official Cisco Training
1. Designing Cisco Enterprise Wireless Networks (ENWLSD)
- Provider: Cisco Learning Network / Digital Learning
- Format: On-demand instructor-led video (ILT) or self-paced
- Duration: 20–30 hours
- Topics: All exam domains with labs and demos
- Link: https://www.cisco.com/site/us/en/learn/training-certifications/training/courses/enwlsd.html
Third-Party Training
2. CBT Nuggets — CCNP Enterprise Wireless Design (ENWLSD 300-425)
- Format: Video-based training + quizzes
- Coverage: Site surveys, infrastructure, mobility, QoS, high availability
- Strengths: Practical, clear explanations, hands-on examples
- Link: https://www.cbtnuggets.com/it-training/cisco/ccnp-enterprise-wireless-design
3. Udemy Courses
- Various instructors offer 300-425 prep courses with practice exams
- Typically 15–25 hours of video content
- Often include real exam question simulations
4. LearnQuest — Designing Cisco Enterprise Wireless Networks
- Format: Instructor-led (virtual or on-site) + self-paced options
- Duration: 3–5 days instructor-led
- Topics: Full exam blueprint with hands-on labs
- Link: https://www.learnquest.com/course-detail-v3.aspx?cnum=LQEX-CSC-ENWLSD-MX
Official Study Materials & Books
Cisco Press Official Cert Guides
CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide
- Authors: Jerome Henry, Robert Barton, David Hucaby
- Publisher: Cisco Press
- Year: 2020 (updated for v1.1)
- Pages: 1,000+
- Coverage: Both design and implementation exams; comprehensive RF theory, site survey methodology, controller architecture, roaming, QoS, security
- Strength: Written by Cisco engineers; exam-aligned; extensive examples and diagrams
- Link: https://www.ciscopress.com/store/ccnp-enterprise-wireless-design-enwlsd-300-425-and-9780136600954
- ISBN: 978-0-13-660095-4
Related Wireless Design Books
CWDP Official Study Guide: Certified Wireless Design Professional (2nd Ed.)
- Author: David A. Westcott, David J. Mackey
- Publisher: McGraw-Hill
- Coverage: RF design, site survey methodology, coverage/capacity trade-offs, interference analysis
- Strength: Vendor-neutral wireless design principles reinforcing ENWLSD concepts
- ISBN: 978-0-07-182857-9
Practice Exams
Third-Party Practice Resources
2. ExamTopics — 300-425 Practice Questions
- Community-contributed questions with explanations
- Free and premium options
- Link: https://www.examtopics.com/exams/cisco/300-425/
3. Udemy Practice Exams
- Full-length simulated exams with detailed answers
- Timed mode to practice test conditions
- Difficulty scaling (beginner to expert)
4. nwexam.com & certshero.com
- Large question banks covering all domains
- Performance analytics by topic
Related Certifications & Learning Path
CCNP Enterprise Certification Stack
CCNP Enterprise = ENCOR (350-401) + ONE of:
- 300-425 ENWLSD (Design — this exam)
- 300-430 ENWLSI (Implementation)
- 300-435 ENAUTO (Enterprise Automation)
- 300-410 ENARSI (Enterprise Advanced Routing)
- 300-415 ENROUTE (Enterprise Routing)
ENCOR (350-401) — Enterprise Core
- Prerequisite for CCNP Enterprise concentrations
- Covers routing, switching, infrastructure, security fundamentals
- Must pass before or concurrent with ENWLSD
Comparable Design Certifications
| Certification | Vendor | Focus | Status |
|---|---|---|---|
| CWDP | CWNP | Vendor-neutral wireless design | Active |
| CCIE Wireless (300-475) | Cisco | Expert-level wireless design + implementation | Active |
| CISM (Security Design) | (ISC)² | Security-focused infrastructure design | Active |
Job Titles & Career Impact
Common Job Roles Using ENWLSD Skills
- Wireless Network Designer
- Enterprise RF Engineer
- Network Architect (Wireless)
- Wireless Solutions Architect
- Senior Network Engineer (Wireless)
- Site Survey Engineer
- Wireless Infrastructure Specialist
Industries & Sectors
- Enterprises: Large corporations with multi-building, multi-campus wireless
- Retail: High-density shopping centers with guest access
- Healthcare: Hospital campuses with BYOD and medical device roaming
- Education: Universities and schools with large student populations
- Hospitality: Hotels, resorts, conference centers
- Manufacturing: Warehouses and factories with IoT and logistics tracking
Salary & Compensation (2026 USD)
United States (USD)
| Role | Entry (0–3 yrs) | Mid (3–7 yrs) | Senior (7+ yrs) |
|---|---|---|---|
| Wireless Network Designer | $70k–$85k | $90k–$120k | $120k–$160k |
| Network Architect (Wireless) | $85k–$100k | $110k–$150k | $150k–$200k+ |
| RF/Site Survey Engineer | $65k–$80k | $80k–$110k | $110k–$150k |
| Senior Network Engineer | $80k–$95k | $105k–$140k | $140k–$190k |
Other Regions (Approximate 2026 Rates)
| Region | Entry | Mid | Senior |
|---|---|---|---|
| United Kingdom (GBP) | £52k–£68k | £70k–£95k | £95k–£140k |
| Europe (EUR) | €60k–€75k | €80k–€110k | €110k–€160k |
| Australia (AUD) | AU$95k–AU$130k | AU$130k–AU$180k | AU$180k–AU$250k |
| South Africa (ZAR) | R600k–R750k | R800k–R1.1M | R1.1M–R1.5M |
| Canada (CAD) | CAD$70k–CAD$88k | CAD$95k–CAD$125k | CAD$125k–CAD$170k |
Skills Validated by ENWLSD
Technical Competencies
- RF Engineering: Path loss modeling, interference analysis, antenna selection
- Site Survey Methodology: Predictive and post-deployment surveys, heat mapping
- Network Architecture: Controller placement, redundancy, scalability
- Mobility Design: Layer 2/3 roaming, fast roaming protocols (802.11r/k/v)
- QoS Design: Policy creation, traffic prioritization, bandwidth management
- High-Availability Design: Failover, load balancing, disaster recovery
- Security by Design: 802.1X, encryption, network segmentation
- Catalyst Center / DNA Center: Intent-based provisioning and assurance
- Outdoor & Mesh: Long-range links, self-healing networks
Study Timeline & Exam Prep Strategy
8-Week Study Plan
Weeks 1–2: RF Fundamentals
- Study RF theory, path loss models, antenna basics
- Read Cisco Press chapter on RF design
- Complete CBT Nuggets RF module
Weeks 3–4: Site Survey & Infrastructure
- Deep dive into site survey methodology
- Controller architecture comparisons
- Hands-on: Use RF prediction tools (Ekahau, AirMagnet)
Weeks 5–6: Roaming, Mobility & QoS
- Study 802.11r/k/v/w standards
- Design QoS policies for various scenarios
- Practice designing inter-controller roaming
Weeks 7: High-Availability & Security
- Design redundancy strategies
- Study 802.1X/EAP design patterns
- DNA Spaces and location services
Week 8: Practice Exams & Review
- Take full-length practice exams (aim for 80%+)
- Review weak areas
- Final review of exam tips and shortcuts
Exam Day Tips
✓ Time Management: ~1.5 min per question (90 min / 60 questions) ✓ Read Carefully: Wireless design questions often have subtle wording ✓ Eliminate Obviously Wrong Answers: Narrows choices for complex scenarios ✓ Flag & Review: Mark uncertain questions for second pass ✓ RF Scenarios: Draw quick diagrams (AP placement, channel plan, coverage) ✓ Avoid Overthinking: ENWLSD tests practical knowledge, not esoteric edge cases ✓ Validate Against Standards: Use knowledge of 802.11a/b/g/n/ac/ax when unsure
Sources & References
Official Cisco Resources
Books & Study Guides
Third-Party Training
Practice Exams
Last Updated: May 2, 2026 Exam Status: Active · v1.1 Study Difficulty: Professional-level · Intermediate to Advanced