question1="The 802.11b amendment to the standard supports what data rates?";
answer1="1, 2, 5.5, and 11 Mbps";
question2=" The IEEE 802.11a amendment to the standard operates in what frequency range?";
answer2="5 GHz UNII band: 5.15-5.25 GHz UNII-1 lower, 5.25-5.35 GHz UNII-2 middle, 5.725-5.825 GHz UNII-3 upper. After 2003, 5.470-5.725 GHz UNII-2e middle (this range is not addressed in the 802.11a amendment).";
question3="The IEEE 802.11g amendment to the standard supports what spread spectrum types?";
answer3="DSSS, HR/DSSS, and ERP-OFDM";
question4=" IEEE 802.11g devices operate in which frequency range?";
answer4="2.4 GHz industrial, scientific, and medical (ISM) band";
question5="What are the mandatory speeds for the IEEE 802.11a amendment?";
answer5="6, 12, and 24 Mbps";
question6="The organization responsible for creating wireless LAN standards is called _________________.";
answer6="IEEE (formally Institute of Electrical and Electronics Engineers)";
question7="What is the latest standard for wireless LAN technology?";
answer7="IEEE 802.11-2007 standard";
question8="Which standard or amendment operates in the 2.4 GHz band and supports data rates up to 54 Mbps?";
answer8="IEEE 802.11g amendment to the standard";
question9="Which standard or amendment addresses quality of service?";
answer9="IEEE 802.11e amendment to the standard";
question10="What is the name of the organization that creates interoperability certifications?";
answer10="Wi-Fi Alliance";
question11="What interoperability certification was created prior to the security amendment to the standard?";
answer11="Wi-Fi Protected Access (WPA) certification";
question12="What interoperability certification was designed as a proactive approach for quality of service?";
answer12="Wi-Fi Multimedia (WMM) certification";
question13="What interoperability certification was designed for mobile devices and specific applications that require advanced power-save mechanisms for extended battery life?";
answer13="Wi-Fi Multimedia Power Save (WMM-PS) certification";
question14="What interoperability certification was designed as a simple way to secure SOHO devices?";
answer14="Wi-Fi Protected Setup (WPS) certification";
question15=" Client devices at a minimum must support which Wi-Fi Protected Setup (WPS) certification feature?";
answer15="Personal identification number (PIN)";
question16="What interoperability certification was created after the amendment to the standard for security was ratified?";
answer16="Wi-Fi Protected Access 2.0 (WPA 2.0) certification";
question17="The IEEE 802.11b amendment to the standard supports what spread spectrum types?";
answer17="DSSS and HR/DSSS";
question18="What data rates are supported by the IEEE 802.11g amendment to the standard?";
answer18="1, 2, 5.5, and 11 Mbps for DSSS and HR/DSSS 6, 9, 12, 18, 24, 36, 48, and 54 Mbps for ERP-OFDM";
question19="The IEEE 802.11b amendment to the standard operates in what frequency range?";
answer19="2.4 GHz industrial, scientific, and medical (ISM) band";
question20="What prevents backward compatibility between IEEE 802.11a and IEEE 802.11g wireless devices?";
answer20="The operating frequency range and spread spectrum types";
question21="What are the three types of access points?";
answer21="Autonomous, lightweight or thin, and mesh";
question22="When a wireless client device is connected to an access point, which mode of operation is being used?";
answer22="Infrastructure";
question23="The name that identifies a wireless LAN is also known as the __________.";
answer23="Service Set Identifier (SSID)";
question24="Half duplex in computer terminology means what?";
answer24="Two-way communication that occurs in only one direction at a time";
question25="What type of access points are self-contained units?";
answer25="Autonomous";
question26="Enterprise-grade access points can operate in what three modes?";
answer26="Root, bridge, or repeater";
question27="What type of access point works with a wireless LAN switch/controller?";
answer27="Lightweight, thin, or controller based";
question28="How can a wireless residential gateway/broadband router be configured?";
answer28="Through a web browser using either the HTTP or the HTTPS protocol";
question29="What device will connect two or more wired LANs together?";
answer29="Wireless bridge";
question30="What device is used to extend the radio frequency cell?";
answer30="Wireless repeater";
question31="What is the purpose of a virtual local area network (VLAN)?";
answer31="To make a logical separation of devices or ports by defining broadcast domains in a Layer 2 network";
question32="What is the name of a common feature of wireless LAN controllers/switches that will intercept a users attempt to access the network by redirecting them to an authorization web page?";
answer32="Captive portal";
question33="What feature of a wireless LAN controller/switch helps protect a network from unauthorized Internet traffic yet allows authorized traffic?";
answer33="Firewall";
question34="What feature of a wireless LAN controller/switch will help time-bounded applications such as voice and video communications by minimizing latency and allowing for traffic prioritization?";
answer34="Quality of service (QoS)";
question35="What is the nominal voltage for Power over Ethernet (PoE)?";
answer35="48 VDC";
question36="A single port or multiple port injector (midspan) can inject DC power into what pairs of Ethernet cable based on the IEEE 802.3 2005 Clause 33 amendment?";
answer36="Unused (non-data) wire pairs";
question37="A disadvantage of using a wireless repeater is what?";
answer37="Decreased throughput";
question38="An access point connected to a port on the wireless LAN controller/switch is called __________ connectivity.";
answer38="Direct";
question39="Point-to-multipoint configurations connect how many LANs together?";
answer39="Two or more";
question40="What is the maximum distance on an Ethernet cable used to supply DC voltage to a lightweight access point?";
answer40="328 feet or 100 meters";
question41="The PCMCIA standard addresses how many types of cards?";
answer41="Three";
question42="What can Type II PCMCIA cards be used for?";
answer42="LANs, data/fax modems, and mass storage I/O devices";
question43="What can Type I PCMCIA cards be used for?";
answer43="RAM, flash, OTP, and SRAM memory cards";
question44="The \"next generation\" PC card technology is known as what?";
answer44="ExpressCard";
question45="What is hot-plug technology?";
answer45="A technology allowing users to install or remove an ExpressCard without having to power down the computer or device";
question46="Serial communication is the process of transmitting how many bits at one time?";
answer46="One";
question47="Parallel communication has the capability of transmitting how many bits at one time?";
answer47="More than one";
question48="What are the data rates specified by USB 1.0?";
answer48="1.5 Mbps to 12 Mbps";
question49="Universal Serial Bus (USB 1.0) standard was designed as a replacement for what?";
answer49="Legacy serial and parallel connections";
question50="What data rates does USB 2.0 operate at?";
answer50="Up to 480 Mbps";
question51="How many types of CompactFlash (CF) are available?";
answer51="Two";
question52="What can Type I CompactFlash cards be used for?";
answer52="RAM, flash memory cards";
question53="What can Type II CF cards be used for?";
answer53="Wireless LANs, microdrives";
question54="Secure digital (SD) cards were designed for what use?";
answer54="As a flash memory storage device with storage capacities from 8MB to 4GB";
question55="Where is a PCI card used?";
answer55="It is inserted into an internal slot in a desktop computer, allowing for the attachment of peripheral devices.";
question56="What are Mini-PCI cards designed for?";
answer56="Laptops and other small-footprint computer systems";
question57="What were Mini-PCIe cards designed for?";
answer57="A replacement for the Mini-PCI card, based on PCI Express";
question58="What is a workgroup bridge?";
answer58="A wireless client device that will allow several Ethernet devices on a common Ethernet segment to connect to a wireless infrastructure";
question59="What is a device driver?";
answer59="Software that allows the installed device to communicate with or take instructions from the operating system installed on the computer";
question60="What is a wireless adapter client utility?";
answer60="It allows configuration of the wireless adapter.";
question61="What is the communication medium wireless LAN devices use to communicate with?";
answer61="The air";
question62="What is wavelength?";
answer62="One complete 360-degree cycle of an AC signal";
question63="What is frequency?";
answer63="How many complete cycles occur in one second";
question64="What is amplitude?";
answer64="The power level of an RF wave";
question65="What is the phase of a signal?";
answer65="The difference, in degrees, between the start and end of two different overlapping sine waves";
question66="What frequency range is the ISM band used for IEEE WLANs?";
answer66="2.4 to 2.5 GHz";
question67="What frequency range is the lower UNII-1 band that is used for WLANs?";
answer67="5.15 to 5.25 GHz";
question68="How many channels are available for WLANs in the 2.4 GHz band?";
answer68="14";
question69="How many channels are available for WLANs in the upper UNII band?";
answer69="Four";
question70="How many channels of separation are required for two channels to be considered non-overlapping in the 2.4 GHz ISM band for HR/DSSS?";
answer70="Five";
question71="What is reflection?";
answer71="Reflection occurs when RF signal bounces off a smooth, non-absorptive surface such as a table top and changes direction.";
question72="What is refraction?";
answer72="Refraction occurs when RF signal passes between mediums of different densities. It may change speeds and also bend.";
question73="What is diffraction?";
answer73="Diffraction occurs when RF signal passes an obstacle. The wave changes direction by bending around the obstacle.";
question74="What is scattering?";
answer74="Scattering occurs when RF signal strikes an uneven surface. Wavefronts of the signal will reflect off the uneven surface in several directions.";
question75="What is absorption?";
answer75="When material absorbs an RF signal, no signal penetrates through the material";
question76="What is diffusion?";
answer76="Diffusion is the result when the RF signal naturally widens as it leaves an antenna element. This is also known as free space path loss.";
question77="What is an absolute measurement of power?";
answer77="An absolute measurement of power is an actual power measurement and not a ratio or a relative value. The amount of power leaving a wireless access point is one example of an absolute measure of power.";
question78="What is a watt (W)?";
answer78="The basic unit of power measurement";
question79="What is a milliwatt (mW)?";
answer79="1 milliwatt is 1/1000 of a watt";
question80="What is a decibel milliwatt (dBm)?";
answer80="The power level compared to 1 milliwatt";
question81="What networking technology is CSMA/CD used with?";
answer81="It is used with a shared medium such as Ethernet and can detect collisions.";
question82="What is beamwidth?";
answer82="The angle of measurement for a specific pattern in which RF propagates from an antenna element. Beamwidth is either horizontal or vertical.";
question83="Wireless LAN site surveys include finding the areas of __________, ___________ , and ___________ locations.";
answer83="RF coverage, RF interference, hardware";
question84="What is the typical first step in a wireless LAN site survey?";
answer84="To gather information";
question85="Name the two types of manual site surveys.";
answer85="Passive, active";
question86="What are three legacy wireless LAN security solutions?";
answer86="Service Set Identifier (SSID) hiding, Media Access Control (MAC) filtering, Wired Equivalent Privacy (WEP)";
question87="What devices can cause global connectivity problems for wireless devices? (Name two.)";
answer87="Access points, bridges, wireless controllers/switches";
question88="How would you define contention in a wireless LAN?";
answer88="Multiple devices competing for a chance to send data on the network";
question89="What is the azimuth?";
answer89="The horizontal RF coverage pattern of an antenna";
question90="How many access points are required for an IBSS?";
answer90="Zero";
question91="What types of antennas are commonly used while performing a physical site survey of an indoor office complex?";
answer91="Low-gain omnidirectional";
question92="Microwave ovens can cause what type of interference?";
answer92="Non-Wi-Fi";
question93="What is the term used to describe the action of preventing the SSID from being broadcast in a beacon frame?";
answer93="SSID hiding";
question94="In wireless networking terms, what is modulation?";
answer94="Combining digital computer data with high frequency alternating current (AC) in order to prepare it to be sent across the air";
question95=" What networking technology does CSMA/CA work with?";
answer95="It is used with wireless LANs to share the medium and avoids collisions. Unlike Ethernet, wireless LANs cannot detect collisions.";
question96="What is the elevation in regard to an antenna?";
answer96="The vertical RF coverage pattern";
question97="How many access points make up a BSS?";
answer97="One";
question98="What common client device will use roaming between RF cells?";
answer98="Voice handset";
question99="What tool can be used during a site survey to determine sources of areas of RF interference?";
answer99="Spectrum analyzer";
question100="What legacy security solution will allow or disallow a wireless client device to connect to an access point based on its address?";
answer100="MAC filtering";
question101="What can cause lack of connectivity for a wireless LAN client? (Name two.)";
answer101="Disabled radio or wireless adapter, misconfigured client utility, Microsoft Wireless Zero Configuration (WZC) not running or not configured";
question102="What data rates does DSSS support?";
answer102="1 and 2 Mbps";
question103="Antenna gain is defined as ________________________.";
answer103="Increase in coverage by focusing the isotropic energy";
question104="How many BSSs are required for an ESS?";
answer104="One or more";
question105="What documentation is typically required for a wireless LAN site survey? (Name three.)";
answer105="Floor plans, blueprints, proposed location of furnishings, electrical specifications, customer interviews";
question106="What are two factors that can be monitored during a manual site survey?";
answer106="Signal strength, signal-to-noise ratio (SNR)";
question107="Wi-Fi Protected Setup (WPS) certified devices must be capable of what type of security implementation?";
answer107="Personal identification number (PIN) functionality";
question108="Why would a wireless client adapter receive an IP address in the 169.254.X.X range?";
answer108="It cannot contact a DHCP server, a DHCP server is not available, or a DHCP server is out of available IP addresses.";
question109="What data rates does HR/DSSS support?";
answer109="5.5 and 11 Mbps";
question110="What is passive gain?";
answer110="Used in antennas, it can increase RF coverage area without the use of an external power source.";
question111="The name of the wireless network is also known as the __________.";
answer111="Service Set Identifier (SSID)";
question112="Obstacles and propagation factors based on the environment in which a wireless LAN is installed will affect the RF _____________.";
answer112="Coverage";
question113="What is the signal-to-noise ratio?";
answer113="The difference between the received signal strength and noise floor";
question114="What is the length of a passphrase?";
answer114="8 to 63 ASCII or 64 hexadecimal characters";
question115="What is received signal strength?";
answer115="How much of the transmitted signal a wireless client device will receive";
question116="How many channels are available in the 2.4 GHz frequency range for use with HR/DSSS?";
answer116="14";
question117="What device will provide active gain?";
answer117="An amplifier";
question118="What two settings are required when setting up an IBSS?";
answer118="RF channel and SSID";
question119="Is a wireless LAN site survey required for all installations?";
answer119="No";
question120="What type of site survey requires an association from the survey device?";
answer120="Active";
question121="What layer of the OSI model does MAC filtering function at?";
answer121="Layer 2";
question122="A client device experiencing low signal strength can be a result of what?";
answer122="The device is too far away from an access point.";
question123="How many non-overlapping channels are available in the 2.4 GHz ISM band?";
answer123="Three";
question124="What device will provide passive gain?";
answer124="Antenna";
question125="What is another name for IBSS?";
answer125="Ad hoc or peer-to-peer";
question126="Wireless LANs may be vulnerable to what type of RF security issue?";
answer126="RF jamming, denial of service, or casual eavesdropping";
question127="What type of site survey listens to all access points in the hearing range of the survey device?";
answer127="Passive";
question128="IEEE 802.1X is ___________ access control.";
answer128="Port-based";
question129="Low throughput can be the result of what? (Name two.)";
answer129="Distance from access point, output power of access point, number of users associated";
question130="802.11b uses which spread spectrum technology?";
answer130="HR/DSSS";
question131="An omnidirectional antenna positioned parallel to the earths surface is ____________ polarized.";
answer131="Horizontally";
question132="The area of RF coverage from a BSS is known as what?";
answer132="Basic service area (BSA)";
question133="Prior to a site survey, what additional information is required regarding the existing infrastructure?";
answer133="Location of wiring closets, capacity of Ethernet switches, power requirements";
question134="What purpose will a protocol analyzer serve in a wireless LAN site survey?";
answer134="To determine existing wireless networks";
question135="The term supplicant is another name for what?";
answer135="The client device that will connect to the wireless network";
question136="What is firmware?";
answer136="Software that provides instructions for the hardware";
question137="How wide is an OFDM channel in the UNII band?";
answer137="20 MHz";
question138="An omnidirectional antenna positioned perpendicular to the earths surface is ____________ polarized.";
answer138="Vertically";
question139="What is the Basic Service Set Identifier?";
answer139="The MAC address of the access points radio card";
question140="What factors may affect RF coverage that need to be considered during the site survey process? (Name two).";
answer140="Output power of APs, size of coverage area, number of devices or users";
question141="If a signal is -65 dBm and the noise level is -90 dBm, what is the signal-to-noise ratio?";
answer141="30 dB";
question142="The term authenticator in 802.1X is another name for what?";
answer142="Access point";
question143="What would cause an IP address of 0.0.0.0 on a wireless client device?";
answer143="An incorrect WPA passphrase on the client device";
question144="How many non-overlapping channels are used in the lower UNII band?";
answer144="Four";
question145="An omnidirectional antenna has a __________ degree horizontal beamwidth.";
answer145="360";
question146="What frame type is a beacon frame?";
answer146="Management";
question147="What is unique about the frequency bands IEEE 802.11 wireless networks operate in?";
answer147="They are license free.";
question148="What is multiple channel architecture?";
answer148="Access points are set to different non-overlapping channels to minimize interference.";
question149="The authentication server in the 802.1X standard is another name for what?";
answer149="The server that will authenticate the supplicant";
question150="What is a possible solution for hidden node as a result of signal strength?";
answer150="Increase the output power of the client devices, move the client devices closer to each other, add an additional access point";
question151="What is the maximum data rate MIMO will support?";
answer151="600 Mbps";
question152="A Yagi is a ____________ directional antenna.";
answer152="semi-";
question153="What frame type is an acknowledgement?";
answer153="Control";
question154="What is one concern to take into consideration when performing a site survey in a warehouse environment?";
answer154="High ceilings may be a challenge.";
question155="What is a predictive site survey?";
answer155="A software-based solution that simulates the wireless LAN installation, such as access point placement and RF propagation";
question156="What is Remote Authentication Dial In User Service (RADIUS)?";
answer156="A networking service that provides centralized authentication and administration of users";
question157="What is a possible solution to hidden node caused by an obstruction?";
answer157="Remove the obstruction, add an additional access point";
question158="How many radios can be used with an 802.11n MIMO system in the 2.4 GHz band?";
answer158="Three";
question159="A parabolic dish is a _______________ directional antenna.";
answer159="Highly";
question160="What function is a wireless client device performing when it is listening for beacons?";
answer160="Passive scanning";
question161="What will be the effect on RF of certain types of products such as paint or other liquids?";
answer161="Refraction, absorption";
question162="Bluetooth uses what communication method that may cause interference in the 2.4 GHz ISM band?";
answer162="FHSS";
question163="Encryption is the process of what?";
answer163="Scrambling information so only the sender and the intended recipient know the algorithm and are able to decipher the information";
question164="What is the result of increasing the gain of an antenna?";
answer164="Increase the cell size and change the coverage pattern";
question165="How wide is a channel for a 5 GHz MIMO system?";
answer165="Either 20 MHz or 40 MHz";
question166="Curvature of the earth will have an impact on RF after __________ miles.";
answer166="Seven";
question167="When a wireless client device sends out a probe request, it is performing what function?";
answer167="Active scanning";
question168="What concerns need to be taken into consideration for a wireless installation in a health care environment?";
answer168="Interference from devices that operate in the 2.4 GHz ISM band";
question169="What is the maximum distance a PoE access point can be mounted from a wiring closet?";
answer169="328 feet or 100 meters";
question170="How was TKIP designed to be implemented?";
answer170="As a firmware upgrade for access points and clients";
question171="A malfunctioning wireless network adapter is an example what type of problem?";
answer171="Isolated or individual";
question172="How wide is an HR/DSSS channel?";
answer172="22 MHz";
question173="What can cause multipath?";
answer173="Reflections";
question174="How many frames are exchanged during the open system authentication process?";
answer174="Two";
question175="A physical walkthrough of the proposed installation location should be performed before what type of site survey?";
answer175="Either manual or predictive";
question176="Which encryption is a mandatory part of the IEEE 801.11i amendment?";
answer176="CCMP";
question177="What software upgrade may help with wireless client device performance?";
answer177="The device driver";
question178="What non-802.11 modulated transmitting devices can cause interference in the 2.4 GHz ISM band?";
answer178="Bluetooth";
question179="What technology can lessen the effects of multipath?";
answer179="Antenna diversity";
question180="Wired Equivalent Privacy (WEP) is required for what type of IEEE 802.11 authentication?";
answer180="Shared key";
question181="What is one concern that should be taken into consideration when performing a site survey in a government/military environment?";
answer181="Security";
question182="What is unique about single channel architecture (SCA) and site surveys?";
answer182="All access points are set to the same RF channel.";
question183="What is role-based access control (RBAC)?";
answer183="A way of restricting access to only authorized users or groups based upon the permission levels they are assigned";
question184="What software component may cause poor performance for a wireless client device?";
answer184="Device driver";
question185="What is adaptive frequency hopping?";
answer185="A technology used with Bluetooth devices that may help to prevent interference";
question186="What effect will an impedance mismatch cause in a wireless LAN?";
answer186="Voltage standing wave ratio (VSWR), which results in reduced throughput";
question187="When does the association process occur?";
answer187="After a successful authentication";
question188="What type of documentation should be gathered for wireless LAN site survey? (Name two.)";
answer188="Floor plans, facility access, network topology map, power availability information (AC, PoE)";
question189="During a site survey, what needs to be taken into consideration regarding antennas installed indoors?";
answer189="Aesthetics, required coverage, customer requirements";
question190="How does a VPN operate?";
answer190="Creates private communications over a public network infrastructure such as the Internet";
question191="What software component can be upgraded to provide new features for a client device?";
answer191="Client software or client utility";
question192="How many subcarriers are available for data transmission using ERP-OFDM?";
answer192="52";
question193="What is the purpose of a lightning arrestor?";
answer193="To shunt transient or induced electrical current to earth ground";
question194="In wireless LAN technology, what is the distribution system?";
answer194="The wired infrastructure to which an access point is connected";
question195="What needs to be taken into consideration regarding client connectivity during a wireless LAN site survey? (Name two.)";
answer195="Radio type, antenna type, gain, and orientation and portability of the device";
question196="What can NetStumbler or InSSIDer be used for during a site survey?";
answer196="To find existing wireless networks";
question197="At what layer of the OSI model do VPNs operate?";
answer197="Layer 3";
question198="What action could be taken for the WLAN if the physical environment has changed, such as a wall being added?";
answer198="Add access point, increase output power, change the antenna";
question199="What do MIMO systems use to increase throughput that is usually a problem with other WLAN technologies?";
answer199="Multipath";
question200="What two variables are required to calculate the width of the Fresnel zone?";
answer200="Distance and frequency";
question201="The speed in which wireless devices are designed to exchange information is known as the _____________.";
answer201="Data rate";
question202="What will a spectrum analysis help determine in a site survey?";
answer202="RF coverage and RF interference";
question203="What can battery packs be used for in a wireless LAN site survey?";
answer203="To temporarily power access points";
question204="What are the two most common types of VPN technology?";
answer204="Point-to-Point Tunneling Protocol (PPTP), Layer 2 Tunneling Protocol (L2TP)";
question205="What will prevent wireless client devices from associating to an access point that has already reached the maximum number of allowed client devices?";
answer205="Load balancing";
question206="What is CSMA/CD?";
answer206="Carrier Sense Multiple Access/Collision Detection";
question207="How much of the Fresnel zone must remain clear of obstructions to maintain an RF line of sight?";
answer207="60 percent";
question208="In wireless networking, the amount of information actually being transmitted is called what?";
answer208="Throughput";
question209="In addition to the wiring closet locations, knowing the ___________ of the wired infrastructure will help with the design of a wireless network.";
answer209="Capacity";
question210="What is an advantage of a predictive site survey?";
answer210="Limited time on-site, does not require physical testing";
question211="What is a wireless intrusion prevention system (WIPS) in regard to wireless networking?";
answer211="A software/hardware solution that monitors the radio waves passing through the air and reports captured information to software to be recorded in a server database via a wireless sensor";
question212="What issues could a poorly designed wireless LAN cause?";
answer212="Intermittent or no connectivity";
question213="What is CSMA/CA?";
answer213="Carrier Sense Multiple Access/Collision Avoidance";
question214="Changing the orientation of a device or antenna will change the ____________.";
answer214="Polarization";
question215="What is the process called when the data rate changes as the distance from an access point either increases or decreases?";
answer215="Dynamic rate switching (DRS), also known as dynamic rate selection";
question216="Why is knowledge of an existing wireless network important during the site survey process?";
answer216="As a potential source of interference";
question217="What is an advantage of a manual site survey?";
answer217="To verify actual RF signal coverage, mark exact installation locations of hardware on-site";
question218="What would be the result of an overloaded access point?";
answer218="Slow performance";
question219="Which encryption is an optional part of the IEEE 801.11i amendment?";
answer219="TKIP";
question220="What length cable will cause loss in a wireless LAN?";
answer220="Any length";
