What is a measure of the antenna’s focus.
beamwidth
frequency
cycle
wave
Number of times a signal completes a cycle 1 second.
rotation
rate
A signal rising from the center line, falls through the center line, and rises again to meet the center line.
amplitude
The most commonly used frequency unit and is nothing other than one cycle per second.
miliwatts
hertz
decibel
volts
What two main frequency ranges used for wireless LAN communication
5 GHz
2.4 MHz
2.4 GHz
4.0 MHz
Technique which uses specific numbers and is assigned to a specific frequency.
channel
scheme
The frequency range needed to transmit a signal, used by a single channel or a single RF signal.
electric band
bandwidth
phase
The signal is a measure of shift in time relative to the start of a cycle. Phase is normally measured in degrees, where 0 degrees is at the start of a cycle, and one complete cycle equals 360 degrees.
Phase
Wave
Frequency
A measure of physical distance that a wave travels over one complete cycle.
wavelength
The height from the top peak to the bottom peak of the signal’s waveform,
Amplitude
The strength of an RF signal is usually measured by its power, in ________.
Volts
Amps
Watts
Define Term - DRS.
Defense sequence spectrum
Dynamic rate shifting
Define Rate Scale
Does Rate System
Define Term - MCS
mobile controller system
modulation and coding schemes
metric call system
none
In a BSS, if you disable lower data rates
effectively reduces the usable size of the AP’s cell
radio frequency (RF) footprint remains the same
no changes
higher throughput
To provide robust wireless coverage to an ever-increasing area, you should:
Add more power
Add additional APs to build an ESS that covers more area.
remove clients from BSS
Tune the cell size based on data rates and performance
The process of moving an association from one AP to the next, so that the wireless connection is maintained as the client moves.
FlexConnect
Roaming
Uplink
BSS
You should lay the cells out, which the pattern is seamless, leaving no holes in coverage.
Honeycomb
Isolation from interference
BSA
Small Space
Alternating channels to avoid overlap is commonly
Channel Reuse
Three-dimension space
Flow Pattern
Needed to automatically determine the location of wireless devices.
real-time location services (RTLS)
modulation and coding (MCS)
Radio Resource Meter (RRM)
Dynamic Channel Allocation (DCA)
Site survey tools can be grouped into three basic categories based on their installation base:
Standalone
Open-Standard
Server-based
Cloud-based
Three basic types of site survey that you can perform as you plan and deploy a wireless network:
Predictive survey
Passive survey
Active survey
Analyze the environment to select AP locations when no APs have been deployed yet;
MCS
What tool to detect and identify any sources of interference you might encounter in the wireless coverage area.
spectrum analyzer
Mapping Tool
Fluke Networks
RRM
Which tools perform predictive site survey:
Ekahua Site Survey
Fluke Networks AirMAgnet Survey Pro
PI
MetaGeek Chanalyzer
To measure the effects of any existing APs in an area,
Passive
Active
Spectrum Analyzer
AP is self-contained; it is equipped with both wired and wireless hardware so that the wireless client associations can be terminated onto a wired connection locally at the AP.
Autonomous AP
LAP
Converge Network
To help manage more and more autonomous APs as the wireless network grows, AP management function is pushed out of the enterprise and into the Internet cloud.
Cloud-based Architecture
Autonomous
Central APs
This logical plan used traffic used to control, configure, manage, and monitor the AP itself
Control plane
Data plane
Central Routing
This logical plan used end-user traffic passing through the AP.
Data Plane
ACI
Control Plane
Trunk
In a split-MAC Architectures which of the following are management functions:
RF Management
MAC Management
Encryption
RF Transmit/Receive
Client Authentication
QOS
Security Management
LAP gets its name because the code image and the local intelligence are stripped down, or lightweight, compared to the traditional autonomous AP.
The management functions are usually performed on a access switch, Split-MAC Architectures
Tunneling protocol makes this all possible by encapsulating the data between the LAP and WLC within new IP packets.
CAPWAP
WAP-TLS
Messages are authenticated, encrypted, and used for exchanges that are used to configure the LAP and manage its operation over port 5246.
CAPWAP control messages
Roaming Control
CAPWAP data
Every LAP and WLC must also authenticate each other with digital certificates. An X.509 certificate is preinstalled in each device when it is purchased.
What is a band and number of channels for 2.4 GHz range?
4.075 - 4.875 and 1 thru 14
4.125 - 4.805 and 3 thru 14
2.412 - 2.484 and 1 thru 14
2.125 - 2.805 and 3 thru 14
The channel spacing is known as the
channel separation
uplink
channel bandwidth
number of frequencies
According to power measurements, which are absolute powers
watts
milliwatts
centimeters
amps
The decibel (db) is a handy function used logartihms to compare absolute measurement.