Certified Wireless Network Administrator - CWNA

Global Knowledge UK
Coventry, Dublin, London, Wakefield, Wokingham, United Kingdom

Course Format: Classroom | E-learning | Virtual Class | Online | On-site | Blended | Self-paced

Course Description:

'' This five-day course is a practical Wireless LAN course covering IEEE 802.11 WLAN technologies, site survey, installation, configuration, support, troubleshooting and security. The course gives experience with equipment from several leading vendors and teaches delegates how to install configure and support equipment from Cisco Systems, Symbol Technologies, Proxim, Orinoco, Colubris Networks, Netgear, Linksys, AirMagnet, WildPackets, Funk Software, Microsoft and more. The site survey labs now provide delegates hands-on experience using AirMagnet’s latest site survey tools.

Information is also provided on the latest innovations and developments across the complete range of wireless LAN industry vendors.

This is a Planet3 Wireless INC course delivered in partnership with a Planet3 Authorised Partner.

Objectives
Understand and apply the essential concepts of Radio Frequency (RF) technology, including RF planning, RF-related calculations and spread spectrum technologies.
Understand the fundamental operation of wireless LANs, for effective WLAN problem analysis and troubleshooting.
Describe the rules governing wireless LANs, to comply with local radio regulations for setup and maintenance of WLANs.
Correctly install, configure and support wireless NICs, access points, wireless bridges, workgroup bridges, wireless gateways and WLAN antennas from Cisco Systems, Proxim Inc, Orinoco, Colubris Networks and more.
Secure the transmission of data over a wireless LAN using WEP and Wi-Fi Protected Access (WPA)Secure wireless LANs using VPN tunelling and encryption techniques including PPTP and IPSec.
Analyse and troubleshoot WLAN problems in-depth, including RF coverage, multipath, hidden nodes and interference problems
Work with sophisticated WLAN diagnostic tools such as AirMagnet and WildPackets AiroPeek NX.
Perform a site survey for the installation of WLANs.
Understand the insecurities in IEEE 802.11 WLANs.
Identify the attacks that can occur from network hackers.
Secure the transmission of data over a wireless LAN using WEP and Wi-Fi Protected Access (WPA)
Secure wireless LANs using generic 802.1x/EAP on access points from a range of manufacturers.Conduct essential security surveys to assess the presence and vulnerabilities of WLANs.

Pre-Requisites
Delegates are required to meet the following prerequisites:

Good understanding of Ethernet LANs, TCP/IP protocols, IP addressing and practical experience configuring and supporting Microsoft Windows 2000 or Windows XP. Net+, CCNA or MCP qualifications are recommended

Target Audience

IT professionals and network engineers responsible for installing or supporting 802.11 Wireless networks.
IT professionals wanting to progress into the wireless network industry.
Network planners, designers and support staff.
IT Security staff, managers and auditors.

Content

Introduction to Wireless LANs

The Wireless Network industry
The Wireless LAN market
Wireless LAN applications
Wireless terminology

Radio Frequency (RF) fundamentals

RF behaviour
Reflection, Refraction, Diffraction, Scattering and Absorption.
The Fresnel zone
Principles of antennas
Gain and loss
Understanding dB,dBi,dBd,dBm,
Understanding power output requlations
Systems Operating Margin (SOM)
RF maths calculations.

Spread Spectrum technologies

Uses of Spread Spectrum
Frequency Hopping (FHSS)
Direct Sequencing (DSSS)
Barker Coding
Packet Binary Convolutional Coding
Orthogonal Frequency Division Modulation (OFDM)
Comparing DSSS,FHSS,PBCC, and OFDM.
Co-location and throughput analysis.
Chipping code, processing gain, and spreading functions.
Channels, data rates, ranges and comparisons.
Channel reuse in pure and mixed environments.

Access Points, Service Sets, and the Distribution System.

Access Points
SSID, BSSID, ESS and ESSID.
Wireless Distribution System (WDS)
Wireless Domain System (WDS)
Client devices and accessories
SOHO networks
Wireless Residential gateways
Wireless repeaters
Power over Ethernet (PoE)
PoE Switches and patch panels
Wireless LAN switches
Wireless Routers
Enterprise wireless gateways
VoWiFi systems

Wireless Bridges

Point-to-Point bridging
Point-to-Multipoint bridging
Increasing bridge link distance
Bridge link calculations
Wireless workgroup bridges

Wireless Ad Hoc Networks

Ad Hoc WLAN concepts
The IBSS
IBSS Process
IBSS Coalescence
Antennas and Accessories

Omni-directional
Semi-directional
Highly-directional
Determining coverage areas
Proper mounting and safety
Performing outdoor and indoor installations
Power over Ethernet (802.3af and proprietary implementations)
Cables and connector usage requirements
Amplifiers, attenuators, lightning arrestors and splitters.
RF Propagation

Fresnel Zones
Calculating 1FZ Size and Minimum Clearance
Free Space Path loss (FSPL)
Free Space Path Loss Calculation
Co-location and throughput analysis
Interference

Common causes of RF Interference
Fading
Multipath
Signal Range
Delay Spread
Reducing Reflections
Site Monitoring tools
Wireless network Organisations and Standards

FCC and ETSi rules for RF.
Worldwide frequency ranges and channels
IEEE 802.11 family of standards
Wireless LAN organizations
Wi-Fi Alliance standardization
HomeRF, Bluetooth and Infrared.

802.11 Network Architecture

Joining a wireless LAN
Authentication
Open System Authentication
Shared Key Authentication
Association
Beacons
Passive Scanning
Active Scanning
Probe Frames
Reassociation Process
Roaming in a wireless LAN
Inter-Access Point Protocol (IAPP)
IEEE 802.11f

Physical and Mac Layers

Differences between 802.11 wireless and Ethernet frames
Arbitration
Carrier Sense
Acknowledgement.
Collision handling
Using RTS/CTS
Throughput and dynamic rate selection
Interframe spacing
Understanding DCF and PCF
Effects of packet fragmentation
Setting the Fragmentation Threshold
802.11 protocol analysis

Bandwidth Control, Network Management and AAA

Bandwidth Control Unit
Enterprise Wireless Gateways with Bandwidth Management
Wireless LAN Management Appliances and software
Placing Wireless LAN Management Devices in the Network
Authentication, Authorisation and Accounting.
AAA Server Software and Appliances
Placing AAA Servers in the Network

Routers, Gateways, Switches and VoWi-Fi.

Describe the components of a simple VOIP system operating over a WLAN.
Describe problems associated with VOIP over a WLAN
Wireless Routers
Using Wireless Routers
Enterprise Wireless gateway ( Vernier Neworks)
Using Enterprise Wireless Gateways
Wireless LAN Switch System (Trapeze Networks)
Placing Wireless LAN Switches in the Network
Wireless Antenna Switch
Using Wireless LAN Antenna Switches and bridges
Wireless LAN VoIP Phones (a.k.a VoWiFi Phones)
Complete VoIP System with Secure 802.11b mobility
Cisco Fast Securing Roaming
Hand-free VoWiFi Communcation System (Vocera)

Troubleshooting Wireless LANs

Understanding multipath effects.
Identifying and resolving Hidden nodes
Identifying ad resolving Near/Far issues
Identifying and resolving interference problems
Maximizing system and co-location throughput
Channel re-use for roaming
Range considerations

Wireless LAN Security

Types of network attacks
Analysis of 802.11 security
Understanding Wired Equivalence Privacy (WEP)
Configuring WEP
''

Phone:+44 (0) 118 977 7766

School Address:

Global Knowledge UK
Mulberry Business Park,
Fishponds Rd, Wokingham, RG41 2GY

Jobs & Resumes: Coventry, Dublin, London, Wakefield, Wokingham
Houses & Roommates: Coventry, Dublin, London, Wakefield, Wokingham

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