CSNT 180 Wireless Networking Meeting 13 Norman …servin.com/palomar/CSNT-180-Wireless-Networking-Meeting... · 2002-11-23 · Course Roadmap – Summary ... Everyone takes the final

Copyright (c) 2010 Servin Corporation. http://servin.com 1

CSNT 180Wireless Networking

Meeting 13

Norman [email protected]

Founder, Servin Corporation, http://servin.comTechnology Training for

Technology ProfessionalsTM

mailto:[email protected]

http://servin.com/

Copyright (c) 2010 Servin Corporation 2

Legal Info

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Opening Remarks

● Welcome!● Thank You!● Today's Agenda

● Return Quiz● Discuss Schedule● Review Book● Quiz 13


Textbook Status Check

We have completed the book!

Read/Re-read the ChaptersBe Sure To Do The Review Questions


Course Roadmap – SummaryCertified Wireless Technology Specialist

● Ch 1. Introduction● Ch 2. Wireless LAN Infrastructure Devices● Ch 3. Wireless LAN Client Devices● Ch 4. Radio Frequency (RF) Fundamentals

and Spread Spectrum Technology● Ch 5. Access Methods, Architectures, and

Spread Spectrum Technology● Ch 6. WLAN Antennas and Accessories


Course Roadmap – SummaryCertified Wireless Technology Specialist

● Ch 7. WLAN Terminology and Technology● Ch 8. Planning a WLAN Site Survey● Ch 9. Performing a WLAN Site Survey● Ch 10. WLAN Security● Ch 11. Troubleshooting and Maintaining

Wireless Networks


Schedule for Remainder of Year

● Today - Friday Dec 3 – Review● Everyone takes the final quiz today● However, some of you will be DONE after today!

– If you have (1) attended every class and (2) have an almost perfect 100 score then I will call your name and you are done --- With A Solid A in the course!

● Friday Dec 9 – Final Wireless Exam● Those who are on the next slides do not need to

come on Friday Dec 9 – You already have an A!


Final Grade Options

● Option 1 – Take the CWTS Certification Exam● The CWTS Certification Exam Grade becomes your

final grade in the course● Print and bring your exam score to class!

● Option 2 – You take final exam from this course and receive grade from quizzes and final exam● Final Exam: 25%● Quizzes: 75% (remember 2 quizzes are dropped)


The Following 8 People Accomplished The Following Fantastic Performance by

1. Attending EVERY class!2. Make 100 on almost every quiz!

3. Average Quiz Score of 99+


Congratulations to

Richard Cobb

1. Attended EVERY class!2. Made 100 on almost every quiz!

3. Average Quiz Score of 100


Congratulations to

Ming Du




Congratulations to

Thad Giotta




Congratulations to

Rick Good




Congratulations to

Dubravko Mak




Congratulations to

Dan Perreault




Congratulations to

Mark Sharp




Congratulations to

Van Can Tran




Congratulations Again!


Time for Review Questions!

These cover the COMPLETE BOOK!


Time for Review Questions!

● The Procedure● I'll ask you the question● If you know the answer, share it with the class● If you do not know the answer, just say “Pass” and

I'll call on the next person


Review QuestionsChapters 1 - 11


Chapter 4 Question

● What can have a negative effect on the capacity of an IEEE 802.11g wireless LAN AP?● A. Reflections from furniture● B. Frequency range in use● C. Number of associated users● D. Output power of the AP


Chapter 7 Question

● A beacon is an example of what type of frame used in IEEE 802.11 wireless LAN?● A. Control● B. Management● C. Data● D. Null Function


Chapter 9 Question

● The manual site survey process allows the site surveyor to perform the survey in one of two modes. Select the two modes:● A. Passive● B. Visual● C. Predictive● D. Active● E. Placement


Chapter 6 Question

● Antenna diversity will ____.● A. Provide an RF signal additional range● B. Reduce the effects of multipath● C. Increase the effects of VSWR● D. Provide active gain


Chapter 1 Question

● Wi-Fi Protected Access 2 (WPA 2.0) requires ___ for the cipher suite and ___ for the encryption mechanism.● A. TKIP, RC4● B. TKIP, RC5● C. WEP, RC4● D. CCMP, RC4● E. CCMP, AES


Chapter 6 Question

● An antenna will propagate RF energy in specific radiation patterns, both horizontal and vertical. How do antenna manufacturers identify the horizontal radiation pattern?● A. Elevation● B. Azimuth● C. Dipole● D. Longitude


Chapter 10 Question

● A virtual private network (VPN) operations at what layer of the OSI model?● A. Physical Layer, Layer 1● B. Data Link Layer, Layer 3● C. Network Layer, Layer 3● D. Transport Layer, Layer 4● E. Application Layer, Layer 7


Chapter 5 Question

● Some common wireless personal network (WPAN) devices such as Bluetooth use a communications technology that has the potential to interfere with IEEE 802.11 wireless LANs. What is the name for that technology?● A. FHSS● B. DSSS● C. HR/DSSS● D. HR/FHSS● E. ERP-OFDM


Chapter 11 Question

● What could cause low throughput in an 802.11 wireless network?● A. Access point output power too high● B. Too many associated client devices● C. Load-balancing features are moving clients● D. The clients are too close to the AP


Chapter 2 Question

● If an autonomous AP is set to what is commonly referred to as root mode, it will be able to perform which function?● A. Connect to a DS and allows client devices to

send info to other devices● B. Connect to a DS as a root bridge and allow two

or more LANs to connect wirelessly● C. Connect to a DS but is seldom used as this

mode requires extensive configuration● D. Connect to a DS as a repeater for RF


Chapter 10 Question

● What Layer 2 security mechanisms are week and should not be used with IEEE 802.11 WLAN? (Choose 3)● A. SSID Hiding● B. WPA● C. VPN● D. WEP● E. WPA 2.0● F. RBAC (Role-based Access Control)● G MAC filter


Chapter 7 Question

● The SSID is is also know as:● A. The name of the WLAN Network● B. The MAC Address of the Radio● C. The name of the AP● D. The Wireless Medium Identifier


Chapter 4 Question

● Which RF channels are considered non-overlapping for 802.11g?● A. 1 and 4● B. 6 and 9● C. 1 and 6● D. 3 and 7● E. 11 and 13


Chapter 9 Question

● What is the advantage a predictive site survey over a manual site survey for a 150,000 square foot office building?● A. Predictive site survey is more accurate● B. Predictive site survey takes less time for 150K

square foot area● C. Predictive site survey has better data models● D. Predictive site survey allows you to try different

settings such as power, channels, without the need of physical visit.


Chapter 6 Question

● What is the horizontal angle of measurement in degress of an omnidirectional antenna with a gain of 2.2 dBi?● A. 90● B. 180● C. 270● D. 360● E. 0


Chapter 5 Question

● An HR/DSSS channel used to transmit data on an IEEE 802.11g WLAN is ____ wide● A. 2.5 GHz● B. 5.1 GHz● C. 11 Mhz● D. 22 Mhz


Chapter 7 Question

● An IBSS (Independent Basic Service Set) requires a minimum of how many APs?● A. 0● B. 1● C. 2● D. 3


Chapter 10 Question

● What does the term authenticator identify in an IEEE 802.1X secure network?● A. The RADIUS server● B. The AP● C. The client device● D. The RAS Server


Chapter 2 Question

● Wireless repeaters are devices in wireless networking that are ____.● A. Used to extend the RF cell● B. Use to repeat and strengthen the RF signal for

better performance● C. Use as a backup solution in the event of AP

failure● D. Use to increase bandwidth of a WLAN


Chapter 6 Question

● What can contribute to VSWR (Voltage Standing Wave Ratio) in a IEEE 802.11g WLAN?● A. Output power of the AP● B. Impedance mismatch● C. Gain of an antenna● D. If the cable is a ghost cable


Chapter 5 Question

● Which IEEE 802.11 standard or amendment can use three radio chains per band and multiple input/output (MIMO) to transmit data?● A. 802.11● B. 802.11a● C. 802.11b● D. 802.11g● E. 802.11n


Chapter 1 Question

● The amount of output power and usable frequency ranges for WLAN devices is determined by:● A. Wi-Fi Alliance● B. Regulatory Domain Governing Bodies● C. IEEE● D. Individual Vendors


Chapter 7 Question

● Open system authentication is ___ in an IEEE 802.11 WLAN network.● A. Flawed● B. Optional● C. Secure● D. Required


Chapter 7 Question

● Shared key authentication is ___ and ___ in an IEEE 802.11 WLAN network.● A. New and Improved● B. Slow and Steady● C. Useful and Required● D. Legacy and Flawed


Chapter 10 Question

● PIN-based WLAN security is ___.● A. Addressed in the Wi-Fi Protected Setup

Certification● B. Required by the 802.11i amendment● C. Best used in enterprise WLAN networks● D. A multifactor (e.g. something you have and

something you know) authentication mechanism for WLANs


Chapter 2 Question

● Which statement is accurate regarding mesh APs?● A. Mesh is a legacy technology● B. In a full mesh network, all nodes connect

together with at least 2 paths for every node.● C. Mesh APs are unreliable● D. Mesh APs require a separate radio for

communication and are hence costly to implement


Chapter 11 Question

● What could be the cause of intermittent connectivity for a WLAN client in an 802.11g WLAN network?● A. A weak received signal strength on the client● B. A signal-to-noise ratio of 35 dB● C. The AP power is set too high and overpowering

the client● D. The radio on the client is disabled


Chapter 4 Question

● IEEE 802.11g WLANs operate in which unlicensed RF band?● A. 902-928 MHz ISM● B. 2.4-2.5 GHz UNII● C. 5 GHz UNII● D. 5 GHZ MAXI● E. 2.4-2.5 GHz ISM


Chapter 9 Question

● What will a protocol analyzer do during a manual site survey?● A. Nothing. This tool is not used with manual site

surveys● B. Help locate sources of RF interference● C. Identify existing WLANs● D. Describe security requirements● E. Send SPAM to APs


Chapter 9 Question

● What will a spectrum analyzer do during a manual site survey?● A. Nothing. This tool is not used with manual site

surveys● B. Help locate sources of RF interference● C. Identify existing WLANs● D. Describe security requirements● E. Send SPAM to APs


Chapter 5 Question

● The access method that an IEEE 802.11a WLAN would use to get control of the WLAN in order to transmit data is called ____.● A. CSMA/CD● B. FHSS● C. HR/DSSS● D. CSMA/CA● E. CSMA/DSSS


Chapter 1 Question

● Which amendment to the 802.11 standard operates in the 2.4 GHz ISM band and supports data rates up to 54 Mpbs?● A. 802.11a● B. 802.11b● C. 802.11g● D. 802.11n


Question

● What is the definition of WPA and WPA 2.0?● A. Wi-Fi Provisional Access● B. Wi-Fi Protected Access● C. Wireless Provisional Access● D. Wireless Protected Access


Question

● The access method that an IEEE 802.11a wireless network would use to get control of the wireless medium in order to transmit data is called what?● A. CSMA/CD● B. FHSS● C. HR/DSSS● D. CSMA/CA● E. CSMA/DSSS


Question

● What is the definition of RBAC?● A. Root Backdoor Access Control● B. Repeating Backlog Access Control● C. Role Based Access Control● D. Root Based Access Control


Question

● IEEE 802.11g WLANs operate in which RF band?● A. 902-928 MHz ISM● B. 2.4000 – 2.500 GHz UNII● C. 5.725 – 5.350 GHz UNII● D. 2.400 – 2.500 GHz ISM


Question

● Both ___ and ___ support shared key security.● A. WPA 2 Personal● B. WPA 2 Enterprise● C. 802.1X/EAP● D. WEP● E. WPA Enterprise


Question

● Which statement is accurate regarding mess access points and mesh technology?● A. Mesh is a legacy technology● B. In a full mesh network, all nodes connect

together with at least two paths for every node● C. Mesh APs are unreliable and are single point of

failure● D. Mesh APs require a separate radio for

communication


Question

● Which security feature provides the strongest security for a home-based WLAN?● SSID Hiding● Passphrase● MAC Filtering● 64-bit WEP● 128-bit WEP● 256-bit WEP


Question

● The amount of power and usable frequency ranges for wireless devices is determined by which organization?● A. Wireless Society of Interested Persons● B. Wi-Fi Alliance● C. IEEE● D. Regulatory domain governing bodies


Question

● You are at a public WLAN hotspot and need to access your corporate LAN. The most secure connection would be:● Passphrase Security● WEP● SSID Hiding● VPN● 802.1X/EAP● RADIUS


Question

● Which IEEE 802.11 standard or amendment uses three radio chains per band and MIMO to transmit data?● 802.11a● 802.11b● 802.11g● 802.11n


Question

● A ___ filter is used to allow or deny wireless barcode readers on a 802.11b/g network.● WEP● IPSec● SSID● RF● MAC● VPN


Question

● Open system authentication is ____ in an 802.11 WLAN● Flawed● Optional● Secure● Required


Question

● This is IEEE standard is related to security● 802.11● 802.11a● 802.11b● 802.11e● 802.11g● 802.11i● 802.11n


Question

● An independent basic service set requires a minimum of how many APs?● 0● 1● 2● 3


Question

● The original 802.11 spec includes this optional security feature:● WEP● CCMP● TKIP● VPN● PPTP● IPSec


Question

● 802.11i requires:● WEP● CCMP● TKIP● VPN● PPTP● IPSec


Question

● An HR/DSSS channel used to transmit data on 802.11g WLAN is ____ wide.● 2.4 Ghz● 5.1 GHz● 11 Mhz● 22 Mhz


Question

● VPN works at what layer of networking?● Layer 1 – Physical● Layer 2 – Data Link● Layer 3 – Network● Layer 4 – Transport● Layer 5 - Session● Layer 6 – Presentation● Layer 7 - Application


Question

● An omnidrectional antenna has a horizontal radiation pattern of ____ degrees.● 0● 90● 180● 270● 360


Question

● Select TWO items related to RADIUS● Remote Access Dial-In User Session● Remote Authentication Dial-in User Service● Username/password locally administered● Username/Password centrally administered● SSID Hiding● MAC Filtering


Question

● You are a WLAN engineer hired to perform a predictive analysis site survey for a 150,000 square foot office building. What is the advantage of a predictive site survey?● Most accurate● Amount of time required is less than a manual

survey● Predictive analysis is approved by the FCC● Can be done remotely with a flashlight


Question

● The 802.1X standard identifies the supplicant as another term for the:● Client Device● Access Point● RADIUS Server● WPA Device● WPA 2.0 Device


Question

● The 802.1X standard identifies the authenticator as another term for the:● Client Device● Access Point● RADIUS Server● WPA Device● WPA 2.0 Device


Question

● The 802.1X standard identifies the authentication server as another term for the:● Client Device● Access Point● RADIUS Server● WPA Device● WPA 2.0 Device


Question

● Some command WPAN devices such as Bluetooth use a technology that may interfere with 802.11g. What is the name of the technology?● FHSS● DSSS● HR/FHSS● HR/DSSS


Question

● The length of the WEP key is ___ or ___● 32-bits● 64-bits● 128-bits● 256-bits● 512-bits● 1024-bits


Question

● How do antenna manufacturers identify the horizontal radiation pattern● Elevation● Azimuth● Dipole● Longitude


Question

● A weakness of MAC filtering is:● Cracking of encryption● Spoofing of address● Forgetting password● Must have SSID Hiding enabled


Question

● A beacon is an example of what type of frame used in a 802.11 WLAN?● Control● Management● Data● Null Function● Zero Function


Question

● Antenna diversity will ___________.● Provide an RF signal less range● Provide an RF signal additional range● Reduce the effects of multipath● Increase the effects of multipath


Question

● What are the TWO main objectives of a WLAN site survey?● Determine RF Coverage● Determine vendor of equipment● Determine RF Interference● Determine paint color of walls● Determine building height above sea level


Question

● Antennas provide an increase in RF coverage by using what type of gain?● Active● Passive● Positive● Negative● MIMO


Question

● Select the technology used in WLAN that uses the effects of multipath to provide up to 300 Mpbs.● DSSR● BlueWave● HR/DDDS● OFDM● MIMO


Question

● WLAN cables and devices have an impedance of ___ ohms.● 5● 50● 500● 7.5● 75● 750


Question

● A SSID has a maximum limit of how many characters?● 16● 32● 64● 128● Answer not listed


Question

● In the 2.4 GHz ISM band, what distance between the center frequencies is required for two channels to be considered non-overlapping for HR/DSSS?● 5 MHz● 22 MHz● 25 MHz● 30 MHz● Answer not listed


Question

● Which spec is about Quality of Service?● 802.11● 802.11a● 802.11b● 802.11e● 802.11g● 802.11i● 802.11n


Question

● Which spec is about Security?● 802.11● 802.11a● 802.11b● 802.11e● 802.11g● 802.11i● 802.11n


Question

● What are TWO characteristics of RF signals?● Amplitude● Reflection● Phase● Refraction● Diffraction


Question

● How many non-overlapping channels are available in 2.4 GHz ISM band in USA?● 1● 2● 3● 4● 5● 6● 7


Question

● Omnidirectional antennas have a horizontal beamwidth of how many degrees?● 45● 90● 180● 270● 360


Question

● Select TWO definitions for BSS as it relates to Wi-Fi● Basis Stress Scale● Basic Simple Signaling● Basic Service Set● Single AP connected to a Distribution System● Multiple APs connected in a mess


Question

● The FIRST step to becoming part of a BSS:● Authentication● Passive Scanning● Active Scanning● Competitive Scanning● Association● Voting


Question

● The LAST step to becoming part of a BSS:● Authentication● Passive Scanning● Active Scanning● Competitive Scanning● Association● Voting


Question

● Circle ONE standard that is NOT compatible with the others● 802.11● 802.11a● 802.11b● 802.11g


Question

● Non Wi-Fi interference for an 802.11g network can be caused by __ and __.● AM radios● Microwave ovens● 802.11b networks● Cordless phones● 5 GHz Radar systems● TV systems


Question

● A spectrum analyzer can be used to view:● Latest sports scores● Radio Frequency● Data Packets● Data Rates● Associated Press News Articles● Data Frames


Question

● When performing a manual site survey, choose the best way to identify areas that lack RF coverage● Write your congressman● Form a picket line● Mark them with TuxTape● Post on YouTube● Document on the floor plan or blueprints● Point a finger and walk away


Question

● A type of site survey that is software-based, requires minimum time-on site, and takes into consideration the attenuation value of materials such as walls and doors is:● Active● Passive● Predictive● Optional● Restrictive


Question

● This antenna is good for use in a long hallway.● High-Gain Omnidirectional● Low-Gain Omnidirectional● Large Parabolic Dish● Yagi● Yoda● Yoga


Question

● Choose TWO best actions when performing a manual site survey● Order lots of pizza● Walkthrough location● Predictive Analysis● Purchase Equipment● Configure Client Devices● Spectrum Analysis● Wear big boots


Review Questions from Chapter 8


Question

● The main objectives of a WLAN site survey are to determine ___ and ___.● RF Coverage● Cost of Equipment● RF Interference● Manufacturer's Equipment● Type of client devices to purchase


Question

● The first step of a WLAN site survey is ____.● Determining RF coverage● Installing APs● Asking permission from the FCC● Gathering business requirements● Documenting existing networkings● Interviewing strangers as they pass by


Question

● The ___ is a main factor in determining how many APs are required.● Political Orientation● Manufacturer of client devices● Number of client devices● Type of client device (laptop or desktop)


Question

● To prevent an RF jamming attack focus on this type of security● VPN Security● Physical Security● Virtual Security● Data Security● AP Security


Question

● Warehouse materials such as paint or other liquids can cause what type of RF behavior● Jittering● Refraction● Reflection● Diffraction● Absorption


Question

● A 1500 sq ft sandwich shop with 15 users requires how many APs for a WLAN?● 1 AP per person● 2 APs per person (one for each ear)● 4 APs per person (one for each ear and one for

each foot)● Answer not listed


Question

● Select all valid site survey questions● What is coverage area?● How many users?● Are the users old enough to vote?● What types of applications will be used?● Is a specific WLAN technology desired (802.11a?

802.11b?, etc. )● Are there existing WLAN devices?


Question

● An office/enterprise WLAN deployment will most often use this type of antenna● Highly Directional● Semidirectional● Parabolic Disk● Omnidirectional


Question

● A key issue for WLAN deployment in a manufacturing area that is:● Number of users● RF Coverage● RF Interference from machines● Security● Number of applications


Question

● A key issue for WLAN deployment in a warehouse is:● Number of users● RF Coverage● RF Interference● Types of materials stored in the warehouse● Security● Number of applications


Question

● A key issue for WLAN deployment in a retail/POS area is:● Number of users● RF Coverage● RF Interference● Security● Number of applications


Question

● A key issue for WLAN deployment in a medical/Hospital area is:● Number of users● RF Coverage● RF Interference from medical instruments● Security● Number of applications


Question

● A key issue for WLAN deployment in the Military is:● Number of users● RF Coverage● RF Interference● Security● Number of applications


Question

● A key issue for WLAN deployment in public Hot Spots/Hotel is:● Number of users● RF Coverage● RF Interference● Security● Number of applications● Ease of connection from many different client

devices




Question

● WLANS may be configured in two major modes. Select the TWO modes as defined in the book in Chapter 7.● SOHO Mode● Ad Hoc Mode● Enterprise Mode● Infrastructure Mode


Question

● Which of the following relate to IBSS● Independent Binary Serial Service● Independent Basic Service Set● Peer-to-Peer● Requires AP● Requires SSID● Requires Security● Requires Channel


Question

● Select TWO ways to refer to the SSID● Serial Service ID● Service Set ID● Network Name● Network Security


Question

● A SSID has a max of how many characters?● 8● 16● 32● 64● 128


Question

● A WLAN that hides the SSID is called a● Secure Network● Closed Network● Open Network● SSID Network


Question

● Select all the advantages of IBSS● Centralized Control● Easy To Configure● Enterprise Security● No Requirement for AP● Highly Scalable


Question

● A network infrastructure is also known as a ___.● SSID● BSSID● Distribution System● WLAN● Answer not listed


Question

● Select all that relate to BSS● Binary Serial Service● Basic Service Set● Requires AP● AP is connected to DS


Question

● Select all advantages of BSS● Does not require AP● Scalable – Add more APs● Centralized Admin● Ad Hoc● Security


Question

● Select all that relate to ESS● Extended Serial Service● Extended Service Set● Two or more BSSs connected to common DS● Two or more IBSSs connected to common DS● Proprietary Implementations


Question

● The first phase of 802.11 discovery phase is:● Passive Scanning● Active Scanning● Authentication● Association


Question

● During this phase the WLAN device sends out a Probe Request Frame● Passive Scanning● Active Scanning● Authentication● Association


Question

● Select the TWO types of device authentication used by 802.11● Closed Authentication● Open System Authentication● Shared Key Authentication● Secure Shell Authentication


Question

● Which WLAN device authentication should be avoided (and is not offered by some vendors)?● Open System Authentication● Shared Key Authentication


Question

● The ___ phase is the final step to becoming part of the BSS.● Passive Scanning● Active Scanning● Authentication● Association● Username/Password Login


Question

● What is the difference between a DS and a WDS● The DS connects BSS using WLAN instead of

Ethernet● The WDS connects BSS using WLAN instead of

Ethernet● There is no difference; DS and WDS mean the

same thing


Question

● The maximum data rate of HT-OFDM is● 1 Mbps● 2 Mbps● 11 Mbps● 54 Mbps● 300 Mbps


Question

● The maximum data rate of ERP-OFDM is● 1 Mbps● 2 Mbps● 11 Mbps● 54 Mbps● 300 Mbps


Question

● The maximum data rate of HR/DSSS is● 1 Mbps● 2 Mbps● 11 Mbps● 54 Mbps● 300 Mbps


Question

● Is Data Rate or Throughput more useful to determine the actual amount of data that can be transferred in a given block of time?● Data Rate● Throughput


Question

● ___ is what happens when a WLAN device moves from one BSS to another● Association● Authentication● Roaming● Passive Scanning● Active Scanning


Question

● Select the TWO power modes specified by the original 802.11 standard● Active Mode (AM)● Power Save Mode (PS)● Battery Mode (BAT)● Low Power Mode (LPM)


Question

● ___ uses a trigger frame to wake device to receive data.● Active Mode● Power Save Mode● Automatic Power Save Delivery● WMM-PS Mode● Power Beam Mode




Question

● Omnidirectional antennas have a horizontal beamwidth of ____ degrees.● 90● 180● 270● 360


Question

● Antennas provide an increase in RF coverage by providing what kind of gain?● Dynamic● Static● Active● Passive


Question

● Horizontal beamwidth is ____ to the earth's surface● Parallel● Perpendicular● Positive● Negative


Question

● WLAN cables have an impedance of ___ ohms.● 10● 25● 50● 75


Question

● The curvature of the earth will have an impact on WLAN signal after ___ miles● 2● 4● 7● 14


Question

● An azimuth chart shows shows which RF radiation pattern?● Vertical● Horizontal● Positive● Negative


Question

● Choose TWO of the following that cause a loss of WLAN signal strength● Antenna● Amplifier● Cable● Connector


Question

● A point-to-point WLAN requires what percent of the Fresnel zone to be clear?● 40● 60● 120● 180


Question

● ___ is the shape of RF energy emitted from an antenna.● Horizontal● Vertical● RF Lobe● Impedance


Question

● ___ is the measure of the main RF lobe at half-power point. ● Impedance● Beamwidth● Frequency● Attenuation


Question

● What TWO charts are used to measure beamwidth?● Azimuth Chart● Vertical Chart● Positive Chart● Negative Chart


Question

● What chart shows a “birds eye view”?● Azimuth Chart● Vertical Chart● Positive Chart● Negative Chart


Question

● What chart shows a “side view”?● Azimuth Chart● Vertical Chart● Positive Chart● Negative Chart


Question

● ___ is the change in coverage that is a result of the antenna focusing the area of RF propagation. ● Gain● Loss● Attenuation● Power Amplification


Question

● ___ is the increase in signal strength by using an external amplifier● Passive Gain● Beamwidth Gain● Active Gain● Rain Gain


Question

● To maximize signal strength:● Transmitter and receiver antennas should be

polarized in the same direction● Transmitter and receiver antennas should be

polarized in the opposite direction● Transmitter and receiver should be painted the

same color● Transmitter and receiver should be made out of the

same material


Question

● Select THREE types of WLAN antennas● Flat Force Directional● Omnidirectional● All Way Directional● Semidirectional● Highly Directional


Question

● Which of the following are semidirectional antennas● Rubber Duck Antenna● Patch/Panel Antenna● Sector Antenna● Yagi [yah gee] Antenna● MiMo Antenna


Question

● This type of antenna is often used for long-range point-to-point bridging● Point-to-Point Bridge Antenna● Omnidirectional Antenna● Semidirectional Antenna● Highly Directional Antenna● MiMi Antenna




Question

● IEEE 802.11 a/b/g devices use what type of communication?● A. Half-duplex● B. Full-duplex● C. Quad-duplex● D. HaHa-Plex


Question

● Define FHSS● A. Fast Half Spread Spectrum● B. Frequency-Hopping Spread Spectrum● C. Frequency-Hopping Super Spectrum● D. Frequency-Hopper Spread Spectrum


Question

● Which 802.11 standard uses FHSS?● A. 802.11● B. 802.11b● C. 802.11a● D. 802.11g● E. 802.11n


Question

● Define DSSS● A. Direct Sequence Spread Spectrum● B. Different Sequence Spread Spectrum● C. Differential Spread Spectrum Sequence● D. Difficult Sequence Some Say


Question

● Which 802.11 standard uses DSSS?● A. 802.11● B. 802.11b● C. 802.11a● D. 802.11g● E. 802.11n


Question

● Define HR/DSSS● A. Half Rate / DSSS● B. Half Run / DSSS● C. High Return / DSSS● D. High Rate / DSSS


Question

● Which 802.11 standard uses HR/DSSS?● A. 802.11● B. 802.11b● C. 802.11a● D. 802.11g● E. 802.11n


Question

● Define OFDM● A. Often Fast Double Modulation● B. Orthogonal Flipping During Modulation● C. Orthogonal Frequency Division Multiplexing● D. Original Frequency Division Multiplexing


Question

● Which 802.11 standard uses OFDM?● A. 802.11● B. 802.11b● C. 802.11a● D. 802.11g● E. 802.11n


Question

● Define ERP-OFDM● A. Extended Rate Physical - OFDM● B. Extra Rapid Physical - OFDM● C. Extreme Rate Protocol - OFDM● D. Extended Rate Protocol - OFDM


Question

● Which 802.11 standard uses ERP-OFDM?● A. 802.11● B. 802.11b● C. 802.11a● D. 802.11g● E. 802.11n


Question

● Define HT-OFDM● A. Half Throughput - OFDM● B. High Tower - OFDM● C. Half Time - OFDM● D. High Throughput - OFDM


Question

● Which 802.11 standard uses HT-OFDM?● A. 802.11● B. 802.11b● C. 802.11a● D. 802.11g● E. 802.11n


Question

● Select the TWO answers below that relate best to DSSS● A. FCC● B. 2.4 GHz● C. 5 GHz● D. 802.11● E. OFDM


Question

● How many 802.11b APs can be co-located without channel reuse to maximize throughput while minimizing RF interference?● A. 1● B. 2● C. 3● D. 4● E. 6


Question

● Select the two answers below that help to describe MIMO.● A. Low frequency● B. High frequency● C. Multiple Radio Chains● D. Multiple Antennas● E. Multiple Security Levels


Question

● Which answer below uses MIMO?● A. 802.11● B. 802.11a● C. 802.11b● D. 802.11g● E. 802.11n


Question

● What WLAN technology sends data using many subcarrier frequencies?● A. Wireless broadband● B. Narrowband● C. Spread Spectrum● D. Spectral Masking● E. Wideband


Question

● Which WLAN network access method attempts to avoid collisions?● A. CSMA/CD● B. CSMD/CA● C. CSMA/CR● D. CSMA/CA


Question

● DSSS uses which spreading code?● A. Barker● B. CCK● C. SVPAK● D. CDOE


Question

● HR/DSSS uses which spreading code?● A. Barker● B. CCK● C. SVPAK● D. CDOE


Question

● The original 802.11 uses:● A. DSSS● B. HR/DSSS● C. OFDM● D. ERP-OFDM● E. HT-OFDM


Question

● The 802.11b uses:● A. DSSS● B. HR/DSSS● C. OFDM● D. ERP-OFDM● E. HT-OFDM


Question

● The 802.11a uses:● A. DSSS● B. HR/DSSS● C. OFDM● D. ERP-OFDM● E. HT-OFDM


Question

● The 802.11g uses:● A. DSSS● B. HR/DSSS● C. OFDM● D. ERP-OFDM● E. HT-OFDM


Question

● The 802.11n uses:● A. DSSS● B. HR/DSSS● C. OFDM● D. ERP-OFDM● E. HT-OFDM


Question

● An HR/DSSS channel is how wide?● A. 1 MHz● B. 20 MHz● C. 22 MHz● D. 25 MHz● E. 30 MHz


Question

● OFDM, ERP-OFDM, and HT-OFDM channels are how wide?● A. 1 MHz● B. 20 MHz● C. 22 MHz● D. 25 MHz● E. 30 MHz


Question

● Bluetooth operates in the ____ band.● A. 2.4 GHz UNII● B. FHSS ● C. 2.4 GHz ISM● D. 5.0 GHz UNII● E. Blue-FHSS


Question

● Which WLAN technology below is the slowest?● A. DSSS● B. Ethernet ● C. OFDM● D. ERP-OFDM● E. HT-OFDM


Question

● Which WLAN technology below is the fastest?● A. DSSS● B. Ethernet ● C. OFDM● D. ERP-OFDM● E. HT-OFDM


Question

● Which technology uses the effects of multipath to provide data rates of up to 300 Mbps?● A. DSSS● B. HR/DSSS● C. OFDM● D. HT/DSSS● E. MIMO


Question

● Which two IEEE 802.11 amendments are interoperable?● A. 802.11 and 802.11a● B. 802.11a and 802.11b● C. 802.11a and 802.11g● D. 802.11b and 802.11g


Question

● Without any regulatory domain taken into consideration, the 2.4 GHz frequency range allows for how many channels using 802.11b?● A. 3● B. 6● C. 9● D. 11● E. 14


Question

● What is maximum data rate of HR/DSSS?● A. 5.5 Mbps● B. 11 Mbps● C. 54 Mbps● D. 300 Mbps


Question

● What WLAN technology specifies that frequencies change regularly while transmitting and receiving?● A. DSSS● B. OFDM● C. FHSS● D. ERP-OFDM




Question

● What is the term defining number of cycles per second?● A. Phase● B. Frequency● C. Amplitude● D. Wavelength


Question

● This term defines the amount of shift of two RF signals● A. Phase● B. Frequency● C. Amplitude● D. Wavelength


Question

● This term defines the distance of one cycle of a RF signal● A. Phase● B. Frequency● C. Amplitude● D. Wavelength


Question

● This term defines the height of a RF signal● A. Phase● B. Frequency● C. Amplitude● D. Wavelength


Question

● How many non-overlapping channels are available for 2.4 GHz ISM band in the USA?● A. 1● B. 3● C. 4● D. 11


Question

● Select the THREE non-overlapping channels are available for 2.4 GHz ISM band in the USA.● A. 1● B. 3● C. 6● D. 9● E. 11● F. 14


Question

● How many total channels are available for 2.4 GHz ISM band (whether or not channels are actually used for a given region of the world)● A. 9● B. 11● C. 12● D. 14


Question

● The capacity of an AP is dependent on. Choose two best answers as describe by the textbook.● A. Number of users● B. Channel reuse● C. Frequency● D. Application bandwidth requirements


Question

● When an RF signal passes between mediums of different densities and change speeds and bend, the behavior is:● A. Reflection● B. Refraction● C. Diffusion● D. Scattering● E. Answer not listed


Question

● Which are relative measures of RF power. Choose two.● A. mW● B. dB● C. dBm● D. Watt● E. dBi


Question

● In the 2.4 GHz ISM band, what distance between the center frequencies is required for two channels to be considered non-overlapping for HR/DSSS?● A. 5 MHz● B. 22 MHz● C. 25 MHz● D. 30 MHz


Question

● Which of the following are characteristics of RF signals?● A. Amplitude● B. Reflection● C. Phase● D. Refraction● E. Diffraction


Question

● Choose the absolute measures of RF Power.● A. Watt● B. dB● C. mW● D. dbI● E. dBm● F. dBd


Question

● The range of a 2.4 GHz ISM signal is mostly dependent on:● A. Frequency● B. Wavelength● C. Amplitude● D. Phase


Question

● The width of a 802.11b channel is:● A. 5 MHz● B. 22 MHz● C. 25 MHz● D. 30 MHz


Question

● When an RF signal bounces off a smooth non-absorptive surface, the behavior is:● A. Refraction● B. Reflection● C. Diffraction● D. Scattering


Question

● When an RF signal bends around an obstacle such as a building or a column, the behavior is:● A. Refraction● B. Reflection● C. Diffraction● D. Scattering




Question

● If a desktop PC does NOT have a WLAN client device installed, but it DOES have a Ethernet connector, then one option is to use a ____ to connect to a wireless network● A. Wireless WPS● B. Wireless Access Point● C. Wireless Workgroup Bridge● D. Answer not listed


Question

● Select all features that may be included in a Wireless Workgroup Bridge● A. IEEE 802.3● B. IEEE 802.11● C. Wi-Fi Certifications● D. PoE● E. MAC Filtering


Question

● Select all external WLAN client devices:● A. PCI● B. Mini-PCI● C. PCIe● D. SDIO● E. USB● F. CompactFlash● G. ExpressCard


Question

● Select TWO of the following that are the oldest technology● A. PCI● B. PCMCIA● C. USB● D. PC Card● E. ExpressCard● F. WPS● G. WPA


Question

● A WLAN client device requires a ______, which is low-level software that interfaces the hardware to the operating system● A. Setup Wizard● B. Installation Program● C. Device Driver● D. Answer not listed


Question

● When using a WLAN client Setup Wizard and/or Installation Program, you must enter the following info:● A. SSID● B. MAC Address● C. IP Address● D. IEEE 802.3 ID● F. Answer not listed


Question

● Which of the following are security choices when configuring a WLAN client device?● A. WEP● B. WEP 2.0● C. WPA● D. WPA 2.0● E. Answer not listed


Question

● ExpressCard replaced which of the following (circle all that apply):● A. PCI● B. PCMCIA● C. PC Card● E. WPA 2.0● F. Answer not listed


Question

● Circle the one WLAN client technology that is about the size of a postage stamp:● A. SDIO● B. PCI● C. ExpressCard● D. USB● E. PCIe● F. PCMCIA● G. PC Card


Question

● A WLAN client device requires a DEVICE DRIVER, which is ______ software for interfacing the hardware to the operating system.● A. High Level● B. Medium Level● C. Low Level● D. Answer not listed


Question

● A WLAN client device may include Client Utility Software that performs the following (select all that are possible):● A. Scan for existing SSIDs● B. Prompt for desired SSID● C. Display signal strength● D. Display security choice of WEP or WPA● E. Display choice of WPA Personal or WPA

Enterprise




Question

● Which organization is responsible for frequency band regulation in the United States?● ITU-R● ETSI● IEEE● Wi-Fi Alliance● FCC


Question

● Which organization is responsible world-wide frequency band regulation allocation?● ITU-R● ETSI● IEEE● Wi-Fi Alliance● FCC


Question

● Which organization is responsible for frequency band regulation in the Europe?● ITU-R● ETSI● IEEE● Wi-Fi Alliance● FCC


Question

● Which organization creates WLAN standards?● ITU-R● ETSI● IEEE● Wi-Fi Alliance● FCC


Question

● Which organization creates WLAN certifications?● 2.4 GHz ISM● 2.4 GHz ● IEEE● Wi-Fi Alliance● FCC


Question

● As used with WLAN, what is the definition if ISM?● Industrial Sight and Magic● Industrial, Scientific, and Medical● Independent Sequenced Modules● Answer not listed


Question

● As used with WLAN, what is the definition if UNII?● Unlimited National Information Industry● Uniform Nations Independently Integrated● Unlicensed National Information Infrastructure● Answer not listed


Question

● Select the TWO unlicensed bands used by WLAN● 1 GHz ISM Band● 2.4 GHz ISM Band● 5 GHz UNII Band● 10 GHz UNII Band● 20 GHz UNII Band


Question

● Which choices below are IEEE WLAN standards? ● 802.11● 1003.1● Wi-Fi● WPA● 802.3


Question

● Which choice below is “different” from the other choices? ● 802.11● 802.11a● 802.11b● 802.11g


Question

● Select each choice that relates to the original 802.11 spec● 2.4 GHz● 5 Ghz● 1 Mbps● 2 Mbps


Question

● 802.11b is backward compatible with (select all that apply):● 802.11● 802.11a● 802.11g


Question

● 802.11b has the following features (select all that apply)● Backwards compatible with 802.11a● Backwards compatible with 802.11● 5.5 Mbps● 11 Mbps● 54 Mbps


Question

● True/False: 802.11a was released before 802.11b


Question

● True/False: 802.11a has a maximum rate of 54 Mbps.


Question

● 802.11a operates in the _____ band.● 1 GHz ISM● 2.4 GHz ISM● 2.5 GHz UNII● 5 GHz ISM● 5 GHz UNII


Question

● 802.11g is backward compatible with (select all that apply)● 802.11● 802.11a● 802.11b● 802.11c● 802.11d● 802.11e● 802.11f


Question

● Select all that relate to 802.11g● 2.4 Ghz ISM Band● Backward compatible with 802.11b● 5.5 Mbps and 11 Mbps● Backward compatible with 802.11● 1 and 2 Mbps● 54 Mbps


Question

● Select all that relate to 802.11n● 2.4 Ghz ISM band● 5 Ghz UNI bands● Up to 600 Mbps● MIMO (multiple input, multiple output)


Question

● The 802.11e specification relates to (select all that apply● Security● QoS● SSID Hiding● Quality of Service


Question

● The 802.11i specification relates to (select all that apply● Security● QoS● SSID Hiding● Quality of Service


Question

● Select all items related to 802.11i● Power Usage● SSID Hiding● MAC Filtering● WEP (Wired Equivalent Privacy)● Performance


Question

● Select TWO that relate to WPA 2.0● Personal Mode● Protection Mode● Professional Mode● Enterprise Mode● Scanning Mode● Banning Mode● WPA2 Mode


Question

● Define WPA as it relates to this course● Windows Protected Access● Wi-Fi Protected Access● Will Protect All● Wireless Protected Access


Question

● Select the organization responsible for WPA● IEEE● FCC● Wi-Fi Allowance● Wi-Fi Alliance● Wi-Fi Protection Association


Question

● Select the BEST answer below● 802.11 <=> 802.11a● 802.11 <=> Wi-Fi● 802.11i <=> WPA 2.0● 802.11i <=> WMM


Question

● Define WMM as used in this course● Wi-Fi Multimedia● Windows Multimedia● With Multiplex Message● 802.11i● 802.11e


Question

● Define WMM-PS as used in this course● Wi-Fi Multimedia - Power Save● Windows Multimedia – Personal Service● With Multiplex Message – Power Update● 802.11i● 802.11e


Question

● Define WPS as used in this course● Windows Personal setup● Willful Produced Security● Wi-Fi Protected Setup● Wi-Fi Privileged Security● Wi-Fi Professional Service


Question

● WPS was designed for which environment?● Enterprise Organization● FCC● SOHO● Security Organizations


Question

● Related to WPS, define PBC● Problem Based Challenge● Preferred Backup Channel● Push Button Configuration● Protected Battery Charging


Question

● WPS supports TWO types of authentication. Select the TWO from the list below.● Professional Authentication● Best Practice Authentication● Push Button Configuration● PIN-based configuration


Question

● WPS APs must support (select as many as required):● Professional Authentication● Best Practice Authentication● Push Button Configuration● PIN-based configuration


Question

● WPS clients must support (select as many as required):● Professional Authentication● Best Practice Authentication● Push Button Configuration● PIN-based configuration


Question

● Personal security for WPA 2.0 uses (select single best answer)● A USB key● A password● A passphrase● EAP (External Authentication Protocol)● A digital certificate


Question

● What application types make use of WMM?● Printing Apps● Streaming Video Apps● Batch Job Apps● Streaming Audio Apps


Question

● Define WMM-PS● Wi-Fi Multi Mimo Path Secure● Wi-Fi Multimedia Power Save● Windows Multi Mimo Path Secure● Windows Multimedia Power Save




Question

● True/False. The OSI Model is a 7 layer model


Question

● True/False. The OSI Model Layer 7 is named the Application Layer


Question

● Select the items below that relate to the Application Layer 7● MAC Address● IP Address● HTTP Protocol● IP Routing● FTP Protocol● Web Browser● Web Server


Question

● WLANs function at which layers of the ISO model. Select TWO best answers.● Layer 7● Layer 6● Layer 5● Layer 3● Layer 4● Layer 2● Layer 1


Question

● OSI Layer 1 is named● Application Layer● Network Layer● Network Routing Layer● Data Link Layer● Data Push Layer● Physical Layer● Hardware Layer● Bit Layer


Question

● True/False: As related to the OSI Model, the letters PHY mean the Physical Layer


Question

● Select the ONE true statement about the OSI Physical Layer● Bit-level data with little organization● Organizes Bit-Level data for communication

between devices on a network● Uses MAC address● Where the IP protocol resides


Question



Question

● Select the TWO true statements about the OSI Data Link Layer● Bit-level data with little organization● Organizes Bit-Level data for communication



Question



Question

● Select the ONE true statement about the OSI Network Layer● Bit-level data with little organization● Organizes Bit-Level data for communication



Question

● Define AP as used in the course● All Points● All Positive● Access Point● Access Privilege


Question

● Select the THREE types of APs● Fully Functional● Autonomous● Heavyweight● Lightweight● Mediumweight● Mesh● Boxed


Question

● Select the AP that is a self-contained unit and can function independent of other devices● Fully Functional● Autonomous● Heavyweight● Lightweight● Mediumweight● Mesh● Boxed


Question

● Select the AP that is NOT used as a standalone device● Fully Functional● Autonomous● Heavyweight● Lightweight● Mediumweight● Mesh● Boxed


Question

● Select the AP that is connected with nodes of other APs, with at least two paths for every node.● Fully Functional● Autonomous● Heavyweight● Lightweight● Mediumweight● Mesh● Boxed


Question

● True/False. Mesh networking is very popular in the outdoor WLAN market.


Question

● True/False. The best way to configure a AP is via the Wireless connection.


Question

● SOHO APs are typically configured using (Choose Two):● MAC Address● CLI (Command-Line Interface)● Starcraft● HTTP● FTP● HTTPS● SMTP


Question

● APs work at which layers of the OSI Model (Choose 2):● Layer 7● Layer 6● Layer 5● Layer 4● Layer 3● Layer 2● Layer 1


Question

● According to the textbook, the following are SOHO features (Select 3):● CLI (Command-Line Interface)● WPA 2.0● WMM● RADIUS● WPS


Question

● Half-duplex communication is (select one):● One way communication, one way only● Two way communication, both directions

simultaneously● Two way communication, one way at a time● Three way communication in a special half mode


Question

● True/False: According to the textbook, SOHO devices allow the user to configure the dynamic antenna output power.


Question

● Suppose you want to connect TWO wired LANs together into a single LAN, i.e., you want a single IP network address for each. Your AP would have to provide the following feature (choose best answer):● DHCP Server● Bridge● RADIUS● WMM-PS


Question

● Wireless bridges have TWO major configurations:● Open● Point-to-Point● Closed● Point-to-Multipoint


Question

● Wireless bridges must be configured with TWO common settings:● Same Vendor● Same SSID● Same RF Channel● Same RF Channel But Different SSID● Different RF Channel but same SSID


Question

● According to the textbook, Enterprise APs had a more extensive feature list than SOHO APs. Which items below does the book state are primarily Enterprise AP features?● Browser-based Configuration● CLI● Removable/Expandable Antenna● WPA 2.0● Adjustable Transmit Power● RADIUS


Question

● According to the textbook, Enterprise APs have three major modes. Select the THREE modes from the following list● CLI Mode● Root Access Mode● Bridge Mode● Repeater Mode● Security Mode


Question

● True/False● Root Access Mode for an Enterprise AP refers to

connecting the AP to the enterprise backbone


Question

● Which answers below relate to Bridge Mode?● Half-Duplex● Point-to-Point● Full-Duplex● Point-to-Multipoint● Happy Duplex


Question

● True/False● Lightweight APs are stand-alone AP devices that do

not need additional hardware.


Question

● True/False● Mesh APs connect multiple APs together to provide

at least two paths for every node


Question

● A Wireless LAN Controller/Switch has two common models. Select the two common models from the list below:● Personal Model● Branch Office Model● Large Enterprise Model● Enterprise Model


Question

● True/False● A disadvantage of a Wireless LAN Controller/Switch

is the lack of centralize control.


Question

● True/False● A virtual LAN (VLAN) allows an Admin to separate

physical ports into logical networks


Question

● Define PoE● Proof of Ethernet● Proof of Error● Power over Ethernet● Power over Enterprise


Question

● True/False● RADIUS stands for Remote Authentication Dial-In

User Service


Question

● True/False● Midspan devices inject the required DC voltage into

the Ethernet cable


Question

● Select the IEEE standard for PoE● WMM-PoE● 802.11● 802.3-2005 Clause 33● 802.11p


End of Questions

Documents

CSNT 180 Wireless Networking Meeting 13 Norman …servin.com/palomar/CSNT-180-Wireless-Networking-Meeting... · 2002-11-23 · Course Roadmap – Summary ... Everyone takes the final