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CWNP Certified Wireless Network Administrator Practice Exams

Description

You may be examined in opposition to these subjects:

  • Radio Frequency Applied sciences

  • Primary traits of RF and RF habits

  • Wavelength, frequency, amplitude, part, sine waves

  • RF propagation and protection

  • Reflection, refraction, diffraction and scattering

  • Multipath and RF interference

  • Achieve and loss

  • Amplification

  • Attenuation

  • Absorption

  • Voltage Standing Wave Ratio (VSWR)

  • Return Loss

  • Free House Path Loss (FSPL)

  • Apply the fundamental ideas of RF arithmetic and measurement

  • Watt and milliwatt

  • Decibel (dB)

  • dBm and dBi

  • Noise ground

  • SNR

  • RSSI

  • dBm to mW conversion guidelines of 10 and three

  • Equal Isotropically Radiated Energy (EIRP)

  • Establish RF sign traits as they relate to antennas.

  • RF and bodily line of sight and Fresnel zone clearance

  • Beamwidths

  • Passive acquire

  • Polarization

  • Antenna range sorts

  • Radio chains

  • Spatial multiplexing (SM)

  • Transmit Beamforming (TxBF)

  • Maximal Ratio Combining (MRC)

  • MIMO

  • Clarify and apply the performance of RF antennas, antenna programs, and equipment

  • Omni-directional antennas

  • Semi-directional antennas

  • Extremely directional antennas

  • Studying Azimuth and Elevation charts for various antenna sorts

  • Antenna orientation

  • RF cables and connectors

  • Lightning arrestors and grounding rods/wires

  • WLAN Rules and Requirements – 20%

  • Clarify the roles of WLAN and networking business organizations

  • IEEE

  • Wi-Fi Alliance

  • IETF

  • Regulatory domains and companies

  • DSSS – 802.11

  • HR-DSSS – 802.11b

  • OFDM – 802.11a

  • ERP – 802.11g

  • Wi-Fi 4 – HT – 802.11n

  • Wi-Fi 5 – VHT – 802.11ac

  • Wi-Fi 6 – HE – 802.11ax

  • Perceive unfold spectrum applied sciences, Modulation and Coding Schemes (MCS)

  • DSSS

  • OFDM

  • OFDMA and Useful resource Models

  • BPSK

  • QPSK

  • QAM (16, 64, 256,1024)

  • Establish and apply 802.11 WLAN purposeful ideas

  • Main channels

  • Adjoining overlapping and non-overlapping channels

  • Throughput vs. knowledge fee

  • Bandwidth

  • Guard Interval

  • Describe the OSI mannequin layers affected by the 802.11-2016 customary and amendments

  • Establish and adjust to regulatory area necessities and constraints (particularly

  • Frequency bands utilized by the 802.11 PHYs

  • Out there channels

  • Regulatory energy constraints

  • Dynamic Frequency Choice (DFS)

  • Transmit Energy Management (TPC)

  • Clarify fundamental use case eventualities for 802.11 wi-fi networks

  • Wireless LAN (WLAN) – BSS and ESS

  • Wireless bridging

  • Wireless Advert-Hoc (IBSS)

  • Wireless Mesh

  • WLAN Protocols and Gadgets – 20%

  • describe the elements and capabilities that make up an 802.11 wi-fi service set

  • Stations (STAs)

  • Primary Service Set (BSS) (Infrastructure mode)

  • SSID

  • BSSID

  • Prolonged Service Set (ESS)

  • IBSS (Advert-Hoc)

  • Distribution System (DS)

  • Distribution System Media (DSM)

  • Outline terminology associated to the 802.11 MAC and PHY

  • MSDU, MPDU, PSDU, and PPDU

  • A-MSDU and A-MPDU

  • PHY preamble and header

  • Establish and clarify the MAC body format

  • MAC body format

  • MAC addressing

  • Establish and clarify the aim of the three important 802.11 body sorts

  • Administration

  • Management

  • Knowledge

  • Clarify the method used to find and hook up with a WLAN

  • Scanning (lively and passive)

  • Authentication

  • Affiliation

  • Open System Authentication and Shared Key authentication

  • Connecting to 802.1X/EAP and Pre-Shared Key authentication networks

  • BSS choice

  • Connecting to hidden SSIDs

  • Clarify 802.11 channel entry strategies

  • DCF

  • EDCA

  • RTS/CTS

  • CTS-to-Self

  • NAV

  • Interframe areas (SIFS, DIFS, EIFS, AIFS)

  • Bodily service sense and digital service sense

  • Hidden node

  • Clarify 802.11 MAC operations

  • Roaming

  • Energy save modes and body buffering

  • Safety mechanisms

  • Describe options of, choose, and set up WLAN gadgets, management, and administration

  • Entry Factors (APs)

  • WLAN controllers

  • Wireless community administration programs

  • Wireless bridge and mesh APs

  • Consumer gadgets

  • WLAN Network Structure and Design Ideas– 15%

  • Describe and implement Energy over Ethernet (PoE) 802.3af, 802.3at, 802.3bt

  • Energy Supply Gear

  • Powered Machine

  • Midspan and endpoint PSEs

  • Energy lessons to incorporate energy variations between PSE and PD

  • Energy budgets and powered port density

  • Outline and describe variations, benefits and constraints of the totally different wirelesS

  • Centralized knowledge forwarding

  • Distributed knowledge forwarding

  • Management, Administration and Knowledge planes

  • Scalability and availability options

  • Tunneling, QoS and VLANs

  • Describe design concerns for widespread deployment eventualities in wi-fi similar to

  • protection necessities, roaming concerns, throughput, capability and safety

  • Design concerns for knowledge

  • Design concerns for voice

  • Design concerns for video

  • Design concerns for location providers together with Actual-Time Location

  • Design concerns for extremely cell gadgets (e.g. tablets and smartphones)

  • Capability planning for prime and really high-density environments

  • Design concerns for visitor entry/BYOD

  • Design concerns for supporting legacy 802.11 gadgets

  • Reveal consciousness of widespread proprietary options in wi-fi networks.

  • AirTime Equity

  • Band steering

  • Dynamic energy and channel administration options

  • Decide and configure required community providers supporting the wi-fi community

  • DHCP for consumer addressing, AP addressing and/or controller discovery

  • DNS for tackle decision for shoppers and APs

  • Time synchronization protocols (e.g. NTP, SNTP)

  • VLANs for segmentation

  • Authentication providers (e.g. RADIUS, LDAP)

  • Entry Management Lists for segmentation

  • Wired community capability necessities

  • WLAN Network Safety – 10%

  • Establish weak safety choices that shouldn’t be utilized in enterprise WLANs

  • WEP

  • Shared Key authentication

  • SSID hiding as a safety mechanism

  • MAC filtering

  • Use of deprecated safety strategies (e.g. WPA and/or WPA2 with TKIP)

  • Wi-Fi Protected Setup (WPS)

  • Establish and configure efficient safety mechanisms for enterprise WLANs

  • Software of AES with CCMP for encryption and integrity

  • WPA2-Private together with limitations and greatest practices for pre-shared (PSK) use

  • WPA2-Enterprise -configuring wi-fi networks to make use of 802.1X

  • Perceive fundamental ideas of WPA3 and Opportunistic Wireless Encryption (OWE) and

  • enhancements in comparison with WPA2

  • Perceive fundamental safety enhancements in WPA3 vs. WPA2

  • Perceive fundamental safety enhancements of encryption and integrity in WPA3

  • (e.g. CCMP, GCMP, AES)

  • Simultaneous Authentication of Equals (SAE) in WPA3 as an enhancement for

  • legacy pre-shared key expertise

  • Perceive the aim of Opportunistic Wireless Encryption (OWE) for public

  • and visitor networks

  • Describe widespread safety choices and instruments utilized in wi-fi networks

  • Entry management options (e.g. captive portals, NAC, BYOD)

  • Protected administration frames

  • Quick Safe Roaming strategies

  • Wireless Intrusion Prevention System (WIPS) and/or rogue AP detection

  • Protocol and spectrum analyzers

  • Greatest practices in safe administration protocols (e.g. encrypted administration

  • HTTPS, SNMPv3, SSH2, VPN and password administration)

  • RF Validation – 10%

  • Confirm and doc that design necessities are met together with protection, throughput,

  • roaming, and connectivity with a post-implementation validation survey

  • Find and determine sources of RF interference

  • Establish RF disruption from 802.11 wi-fi gadgets together with rivalry vs.

  • interference and causes/sources of each together with co-channel rivalry (CCC),

  • overlapping channels, and 802.11 wi-fi machine proximity

  • Establish sources of RF interference from non-802.11 wi-fi gadgets based mostly on the

  • investigation of airtime and frequency utilization

  • Perceive interference mitigation choices together with removing of interference

  • supply or change of wi-fi channel utilization

  • Carry out software testing to validate WLAN efficiency

  • Network and repair availability

  • VoIP testing

  • Actual-time software testing

  • Throughput testing

  • Perceive and use the fundamental options of validation instruments

  • Use of throughput testers for validation duties

  • Use of wi-fi validation software program (particularly survey software program and wi-fi

  • scanners)

  • Use of protocol analyzers for validation duties

  • Use of spectrum analyzers for validation duties

  • WLAN Troubleshooting – 10%

  • Describe and apply widespread troubleshooting instruments utilized in WLANs

  • Use of protocol analyzers for troubleshooting duties

  • Use of spectrum analyzers for figuring out sources of interference

  • Use of administration, monitoring and logging programs for troubleshooting duties

  • Use of wi-fi LAN scanners for troubleshooting duties

  • Establish and troubleshoot widespread wi-fi points

  • Establish causes of inadequate throughput within the wi-fi distribution programs

  • together with LAN port velocity/duplex misconfigurations, inadequate PoE finances,

  • and inadequate Web or WAN bandwidth

  • Establish and resolve RF interference utilizing spectrum analyzers

  • Establish wi-fi efficiency points utilizing SNR, retransmissions, and airtime

  • utilization statistics

  • Establish causes of wi-fi points associated to community providers together with DHCP,

  • DNS, and time protocols together with utilizing native interface and IP configuration

  • instruments (e.g. pings, DNS lookups, interface configuration)

  • Establish wi-fi points associated to safety configuration mismatches


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