[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_28":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58},"routes/_store+/_readers+/email_author.$slug/route",{"_9":10,"_11":-5},"book",{"_12":13,"_14":15,"_16":17,"_18":19,"_20":21,"_22":23},"currentUser","id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvODMzNjA","title","WLSI 300-120 v1.2 Complete Learning Guide","state","published","contactAuthorMethod","email","aboutText"," What this book is

A complete, independent study guide for Implementing Cisco Wireless Advanced Solutions v1.2 (WLSI 300-120). All eight blueprint domains are covered in the depth their weighting deserves — the 20 % client security domain gets 50 pages, the 10 % hardening domain gets 23 — so your study time lands where the exam does.

Every configuration is written for the Catalyst 9800 running IOS XE, the platform the exam expects you to know, with AireOS equivalents given where engineers migrating an existing estate need the mapping.

What is inside

334 pages across 8 sections and 63 sub-sections
260 knowledge-check questions, five per sub-section, each with a full explanation of why the correct answer is correct and why the most plausible wrong answer is not
57 diagrams drawn specifically for this book — data paths, decision trees, protocol exchanges and triage ladders
Ten worked cases from the field, each crossing domain boundaries the way real faults do
Complete blueprint mapping, a glossary of every term used, and a consolidated hardening checklist

How each sub-section is built

The same structure every time, so you always know where you are:

Explanation from first principles — a mechanism you understand is one you can reason about under exam pressure
Diagrams where the relationship is spatial or sequential
Complete Catalyst 9800 configurations, with verification commands alongside
Four kinds of margin note — Exam Tip where something is directly testable, Common Pitfall where deployments reliably go wrong, Did You Know for the detail that makes a mechanism click, and From the Field for what actually happens in production
A summary and key takeaways, written so the takeaways alone work as a revision pass
Five knowledge-check questions with full explanations

Who it is for

Engineers who can already build a wireless network and now have to make it work properly — at forty branches, under an audit, during an outage. If you hold a CCNA-level wireless certification or have run a campus wireless network, you have the foundation this book builds on.

Try before you buy

A free 40-page sample contains the front matter, the full blueprint mapping, and the first four sub-sections of the FlexConnect domain, reproduced exactly as they appear in the book. Nothing in it is abridged — it is what all 334 pages look like.

A note on independence

This is an independent, unofficial study guide. It is not affiliated with, authorised by, endorsed by or sponsored by Cisco Systems, Inc. All trademarks are the property of their respective owners.

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Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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