rf design interview questions
mainly the questions will be based on your projects, typical questions will be like this
Radio Technology
Identify the different 802.11 standards set by research 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
Antenna Concepts
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 how an antenna is used to propagate an RF signal
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
Wireless LAN Topologies
Identify the components of a WLAN and describe their functions
Identify the functions of various Cisco clients (WGB, PCI, mini PCI, PCMCIA, LMC)
Identify workgroup bridge characteristics and functionality
List the fundamentals of planning a WLAN deployment
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
Wireless Bridges Lecture
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
Access Point/Bridge Basic Configurations
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
Aironet Client Utility and Drivers
Identify which client operating systems are supported by each of the Cisco client cards
Determine the status of a client card by observing the indicator lights
Identify what wireless abilities are available for CE devices
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
Security
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
Wireless LAN Management
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
Advanced Topologies
Explain a Metropolitan Mobile Network solution