CWNA Guide to Wireless LANs, Second Edition - Ch4

8/10/2019 CWNA Guide to Wireless LANs, Second Edition - Ch4

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Lab Manual for CWNA Guide to Wireless LANs, Second Edition Lab Manual Solutions 4-

Chapter 4 Solutions

Activity Questions, Lab 4-19. What are the data rates for the 802.11g radio?

Answer : 1, 2, 5 5, !, ", 11, 12, 1#, 24, $!, 4#, 54 Mb%s

10.What is the frequency range in GHz for the 802.11b and 802.11gstandards in America as measured by the !""? Answer : 2 412-2 4!2

11.Ho# many nono$er%a&&ing channe%s are there #hen using the 802.11gstandard? Answer : $

12.Ho# good is your signa%? What is your current signa% strength in d'm?What is your %in( s&eed )data rate*? Answer : &aries' (aries' (aries

1+.What is the stated d'm %isted for your data rate? Are you #ithin the

recei$e sensiti$ity range? Answer : -)2 d*+ for 54 Mb%s' S ould be

1,.What is the highest transmit &o#er o&tion for the 802.11g radio in mWand d'm? Answer : 1 +W, 2 d*+

1-.What is the ma imum distance outdoors )in feet* that your 802.11gc%ients can be from the access &oint and theoretica%%y sti%% e &erience thema imum data rate for your radio? What is the ma imum distanceindoors? Answer : 11 feet' " feet

19.What are the su&&orted data rates for the 802.11a radio? Answer : !, ", 12, 1#, 24, $!, 4#, 54 Mb%s

20.Ho# many nono$er%a&&ing channe%s are there #hen using the 802.11astandard in /orth America? Answer : 12

21.What is the highest transmit &o#er o&tion for the 802.11a radio in mWand d'm? Answer : 5 +W, 1) d*+

22.What is the ma imum distance outdoors )in feet* that your 802.11ac%ients can be from the access &oint and theoretica%%y sti%% e &erience thema imum data rate for your radio? What is the ma imum distanceindoors? Why do you thin( the outdoor range is greater than the indoorrange? Answer : 1) feet' " feet' fe.er obstructions outdoors

Review Questions, Lab 4-11. Why isn t 802.11a com&atib%e #ith 802.11b and 802.11g?

Answer : /ifferent fre0uencies

2. At #hat s&eeds is 802.11g com&atib%e #ith 802.11b?

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Answer : 1, 2, 5 5, and 11 Mb%s

+. What techno%ogy ma(es it &ossib%e for the 802.11a and 802.11g standardsto get s&eeds u& to -, b&s? Answer : /M

,. ou #i%% usua%%y ha$e more range bet#een the access &oint and the c%ient

de$ice if you are indoors rather than outdoors. 3rue or !a%se? Answer : alse

-. 4escribe recei$e sensiti$ity. Answer : 3o. faint an si nal can be and still be successfull6 recei(ed b6 a recei(er

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Activity Questions, Lab 4-2,. What #i%% this setting sacri5ce to get the best range?

Answer : S%eed

10.What #i%% this setting sacri5ce to get the best s&eed? Answer : /istance

1,.What com&atibi%ity issue does this setting so%$e? Answer : Allo.s # 2 11 to .or7 .it # 2 11b

Review Questions, Lab 4-21. What data rate boundaries #ere you ab%e to document using the 'est

6ange setting? Answer : &aries

2. 3he 'est 6ange setting shou%d ha$e gi$en you the best distance before theconnection #as %ost. What are your obser$ations regarding the 'est 6angesetting? Answer : S ould be true

+. What data rate boundaries #ere you ab%e to document using the 'est 3hrough&ut setting? Answer : &aries

,. 3he 'est 3hrough&ut setting shou%d ha$e gi$en you the best through&uto$er the distance you #a%(ed but may ha$e sacri5ced tota% distance ascom&ared to the 'est 6ange setting. What are your obser$ations regardingthe 'est 3hrough&ut setting? Answer : S ould be true

-. 3he 4efau%t setting is designed to ma(e 802.11g de$ices com&atib%e #ith802.11b de$ices. 7n genera% ho# did the 4efau%t setting &erform

com&ared to the 'est 6ange and 'est 3hrough&ut settings? Answer : &aries

Activity Questions, Lab 4-3. Ho# is the access &oint determining #hich channe% to use? What channe%s

are your %a&to&s using? What is the center of the frequency in Hz? Answer : Least Con ested re0uenc6' &aries' &aries

8. What do these entries re&resent? What are the most congested channe%s?What is the congestion on the most congested channe% in &ercent? Answer : A(ailable /SSS c annels' &aries' &aries

10.Which channe% is the busiest no#? What is the &ercentage of congestion onthat channe%? Answer : &aries' &aries

12.Are there any changes in the resu%ts you recorded in te& 10? 7f so #hatchanged? Answer : &aries' &aries

Review Questions, Lab 4-3

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1. 3he :in(sys #ire%ess router defau%ts to channe% . 3he "isco Aironet 1200defau%ts to the %east congested channe%. Which do you thin( is better and#hy? Answer : Least con ested c annel, because t e access %oint +a7es ad8ust+ents for con estion

2. Ho# cou%d you use the "arrier 'usy 3est feature of the "isco Aironet 1200

for troub%eshooting? Answer : 9f 6ou a(e %erfor+ance %roble+s, 6ou can test t e si nal usin t e Carrier *us6 est feature

+. What are the three 4 channe%s that don t o$er%a&? Answer : 1, !, 11

,. Why does co;%ocation on ad

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CWNA Guide to Wireless LANs, Second Edition - Ch4