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Cisco · Wireless · Professional

Cisco WLSI: Implementing Cisco Wireless Advanced Solutions exam guide

Exam 300-120 WLSI

WLSI (300-120) validates implementing advanced Cisco wireless solutions: FlexConnect, QoS, multicast, advanced location services, security for client connectivity, monitoring and device hardening. It is a CCNP Wireless concentration and earns the Wireless Advanced Solutions Specialist credential.

QuestionsSee official page
Time limit120 minutes
Passing scoreSee official page
Exam fee$400 USD
Valid for3 years
DeliveryProctored at a test center or online, scheduled through Cisco's certification portal

Format: Multiple choice (single and multiple answer), drag-and-drop, and simulation/testlet-style items; pass/fail. Fee note: Price and duration as listed on Cisco's exam page; some partners quote $300/90 min, so confirm at booking.

Who it's for

Wireless engineers implementing advanced features on Catalyst 9800-based networks.

What the exam covers

FlexConnect—
QoS on the Wireless Network—
Multicast—
Advanced Location Services—
Security for Client Connectivity—
Monitoring—
Device Hardening—

A dash means the vendor does not publish a weight for that domain.

Eligibility & prerequisites

Required: None.

Recommended: Three to five years implementing Cisco wireless solutions.

Keeping it active

Passing earns a Cisco Certified Specialist credential valid 3 years (renew with 40 CE credits or by passing a qualifying exam). The exam itself also counts toward recertifying CCNP/CCIE.

Skills & careers

Skills it validates

  • FlexConnect groups and local switching
  • Wireless QoS profiles and policies
  • Multicast and mDNS for wireless
  • Location services with Cisco Spaces
  • 802.1X, ISE integration and client security
  • Monitoring and device hardening

Job roles

Wireless Network EngineerWLAN EngineerMobility EngineerNetwork EngineerWireless Consultant

Where it fits in your path

Planning a degree too? See how this cert earns college credit in the College Credit Navigator.

Build my study plan

  1. Week 1: FlexConnect and QoS on Catalyst 9800.
  2. Week 2: Multicast/mDNS and location services.
  3. Week 3: Client security with ISE and hardening.
  4. Week 4: Monitoring, troubleshooting and practice exams.

Make it yours: pick your exam date and weekly hours. We'll split your time by domain weight and give you a printable plan.

Exam-day tips

  • Lab FlexConnect local switching and authentication modes.
  • Know wireless QoS profiles (platinum, gold, silver, bronze) and their mappings.
  • Practice mDNS gateway configuration.
  • Note ENWLSI (300-430) was retired on March 19, 2026.

Key terms for this exam

All 11 terms Study with thinQcards™

Frequently asked questions

How much is WLSI?

Cisco's exam page lists US$400 and 120 minutes; confirm at booking.

Did WLSI replace ENWLSI?

Yes, as of March 19, 2026.

Does WLSI alone give CCNP Wireless?

No; you also need WLCOR.

What is the passing score?

Cisco does not publish passing scores or question counts; the score needed varies by exam form and is reported as pass/fail with a section breakdown.

WLSI or WLSD?

WLSI for implementation roles, WLSD for design and survey roles.

Official page: www.cisco.com. Reviewed November 2026. Vendors change fees and objectives, so confirm with the vendor before you book. Spot something out of date? Tell us.