Advanced Wireless LAN for System Engineers Exam: 642-681 Exam
"Advanced Wireless LAN for System Engineers Exam", also known as 642-681 exam, is a Cisco Certification. With the complete collection of questions and answers, PrepPDF has assembled to take you through 93 Q&As to your 642-681 Exam preparation. In the 642-681 exam resources, you will cover every field and category in Wireless LAN Certification helping to ready you for your successful Cisco Certification.
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- Exam Code: 642-681
- Exam Name: Advanced Wireless LAN for System Engineers Exam
- Certification Provider: Cisco
- Corresponding Certification: Wireless LAN
- Updated: Sep 06, 2026
- No. of Questions: 93 Questions & Answers with Testing Engine
- Download Limit: Unlimited
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642-681 Practice Q&A's
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Cisco 642-681 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Cisco Unified Wireless Architecture | 18% | - Wireless LAN Controllers (WLC) - Split-MAC architecture - Control and Provisioning of Wireless Access Points (CAPWAP) - Lightweight Access Points (LAP) |
| Topic 2: WLAN Design & Site Survey | 17% | - Site survey methodology - Interference analysis - Coverage vs capacity planning - Channel & power assignment |
| Topic 3: WLAN Configuration & Deployment | 17% | - SSID & VLAN mapping - WLC initial setup & management - Guest access configuration - AP registration & group management |
| Topic 4: Monitoring & Troubleshooting | 4% | - Controller monitoring tools - Client connectivity issues - RF & performance troubleshooting |
| Topic 5: WLAN Fundamentals & RF Technologies | 16% | - RF principles, frequency bands & channels - IEEE 802.11 a/b/g/n standards - Antenna types & coverage - Regulatory domains |
| Topic 6: WLAN Security | 16% | - Authentication methods (802.1X, PSK) - Security best practices - Encryption (WPA2, WEP, TKIP/AES) - RADIUS integration |
| Topic 7: Mobility & Roaming | 12% | - Fast Secure Roaming - Mobility groups & domains - Layer 2 & Layer 3 roaming |
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