Exam Code: 642-577

Course Name: Wireless LAN for System Engineers

Vendor: Cisco

Passing Score: 700%

642-577 is the most important certification from the Cisco. Cisco 642-577 or Wireless LAN for System Engineers certification exam focuses on the configuration and troubleshooting of the wireless local area networking. Cisco 642-577 or Wireless LAN for System Engineers certification exam is the best option for the people who desire to make their career in the wireless LAN. It is a qualifying exam for CCIP certification.

The 642-577 exam provides you with the technical knowledge and skills of identifying important 802.11 regulatory issues, key aspects of RF transmission, main sources of RF noise, and critical noise resolutions. It also enables you to recognize and describe the function and use of Cisco AP and Bridge antennas. In order to be able to explain the Cisco SWAN solution and the fundamentals of planning a WLAN deployment, you must take 642-577 exam. Moreover, it facilitates you with the abilities of giving details of critical aspects that affect wireless bridge deployment. The 642-577 exam trains you to perform basic and advanced AP/bridge configuration using appropriate drivers, functions, and client configuration. In addition, it makes you proficient in explaining the importance of security in a WLAN and appropriately configure the client/AP to use security measures. By doing this Cisco certification, use tools in the Cisco SWAN solution in the management of a WLAN.

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Course Outline: Wireless LAN for System Engineers

Identify important 802.11 regulatory issues, key aspects of RF transmission, main sources of RF noise, and critical noise resolutions

Identify the different 802.11 standards set by IEEE and other important agency standards

Identify regulatory issues relating to unlicensed bands

Describe the sources of RF noise and how to resolve the problem

Identify important 802.11 standards affecting Cisco WLAN products

Identify and describe the function and use of Cisco AP and Bridge antennas

Describe decibel calculations and the uses of various decibel units

Differentiate between dBi and dBd

Define EIRP

Identify cable loss factors

Identify the fundamentals of antenna operation and deployment

Describe the categories of antennas and their uses

Describe Multipath distortion and other RF transmission problems

Describe the operation of the Diversity antenna system

Define basic facts of EIRP

Explain what an isotropic antenna is and why it is used as a reference for other antennas

Identify site survey considerations and procedures

Describe the Cisco SWAN solution and the fundamentals of planning a WLAN deployment

Identify the components of a WLAN and describe their functions

Identify the functions of various Cisco client (WGB, PCI, mini PCI, PCMCIA, LMC)

Identify workgroup bridge characteristics and functionality

Define the intended use of a wireless LAN (WLAN)

Identify benefits and concerns of channel reuse

Define the concept of "non-overlapping" channels and the benefit of using these channels

Identify the relationship between data rate and cell size (coverage area)

Define the performance impact of 11b client in cell coverage of an 11g access point

Identify the solution SWAN (Structured Wireless Aware Network)

Describe the operation and uses of repeaters

Describe hot-standby mode and its benefits

Explain a Metropolitan Mobile Network solution

Define the components of a Networks in Motion solution

Identify and describe critical aspects that affect wireless bridge deployment

Describe deployment considerations such as distance limits and path loss

Describe the difference between an AP and a bridge

Identify considerations for selecting antennas to be used with the Wireless Bridges

List environmental factors affecting wireless performance and calculate path loss (trees, fresnel zone)

Items that need to be considered when doing an outdoor path analysis

List methods for increasing the transmission distance

Explain why a wireless bridge may be a better solution than other alternatives

Describe different roles of the Bridges in a Radio Network and installation considerations

Explain and determine the feasibility of installing a wireless bridge link

Explain the difference between a root and non-root Mode bridge

Identify and perform basic and advanced AP/bridge configuration using appropriate drivers, functions, and client configuration

Identify the benefits of using filtering options

Identify how to perform initial configurations to both APs and Bridges

Identify where and how to configure advanced features in APs and Bridges

Identify which client operating systems are supported by each of the Cisco client cards

Identify how an administrator can push out drivers/utilities and configurations to large number of clients

Identify what the wireless system tray Icon can be used for

Explain the importance of security in a WLAN and appropriately configure the client/AP to use security measures

List the benefits of server-based security

Set up MAC address filtering as a security tool

Explain how 802.11 and 802.1X can provide better security for a WLAN

Explain how to configure a WLAN to provide the same levels of security that a wired LAN would provide

Explain what WiFi Protected Access is and how it enhances WLAN security

Configure an access point and wireless client to use security measures

Configure Cisco ACS for use with Cisco Aironet products

Identify and use tools in the Cisco SWAN solution in the management of a WLAN

Identify and describe the tools available for managing Cisco Wireless LANs including individual AP tools and managing APs collectively with the Cisco Wireless LAN Solution Engine (WLSE)

Communicate the Structured Wireless Aware Network (SWAN) Architecture relative to the components and wireless LAN management and explain Radio Management

Explain the need for Fast Roaming, detail the steps involved in a Layer 2 roam and explain the steps involved in Fast Roaming