CWNA Guide to Wireless LANs, Second Edition - Ch6

8/10/2019 CWNA Guide to Wireless LANs, Second Edition - Ch6

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Lab Manual for CWNA Guide to Wireless LANs, Second Edition Lab Manual Solutions 6-

Chapter 6 Solutions

Note: The labs in Chapter 6 reuire the follo!in" additional files: #cs$$%&'ip(This )T* pro"ra+ is a free do!nload& Tourna+ent&ssf(This is a bi" file used to deter+ine throu"hput& ou can use an

file that is about %. M/, as lon" as ou rena+e it tourna+ent&ssf&0

Activity Questions, Lab 6-1

3. What is the name of the server? What is the name of the client?Answer: 1aries2 1aries

13.What is the reported throughput in kilobytes per second?Answer: 1aries

14.What is the reported throughput in Mbps?Answer: 1aries

15.Calculate the percentage of the rated bandidth you e!perienced duringthe donload by dividing the reported throughput recorded in "tep 14by the rated bandidth of your connection. #f you are using the $%&.11gstandard' the rated bandidth is 54 Mbps.Answer: 1aries

1(.#f you completed )ab 5.&' hat as the percentage of rated bandidth'in Mbps' you e!perienced hile transferring the same *le hile roaming?

+his value as recorded in "tep , of )ab 5.&.Answer: 1aries

Review Questions, Lab 6-1

1. What is the advantage of using the hash command hen donloading a*le using -+?Answer: The hash co++and lets ou !atch !hile the file do!nloads, and this can be especiallhelpful if the do!nload crashes, because ou !ill 3no! !hen it happens&

&. What units does -+ use to report throughput?Answer: 4ilobtes per second

3. +heoretically speaking' hy should communicating in ad hoc mode bemore e/cient than communicating in infrastructure mode?Answer: The fra+es don5t hae to pass throu"h other deices !hen usin" ad hoc +ode&

4. #f you completed )ab 5.& as ell as this lab' ho did transferring the *lethrough to access points hile roaming compare to transferring thesame *le in ad hoc mode?Answer: The ad hoc +ode transfer should hae been faster&

5. 0o meaningful is the term rated bandidth2 hen talking to irelessusers about the kind of performance they can e!pect on the neireless )?Answer: Wireless users should be told up front that the !ill e7perience far less throu"hput than therated band!idth of the sste+&


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,. What is the reported throughput in kilobytes per second?Answer: 1aries

1%.What is the reported throughput in Mbps?Answer: 1aries

11.Calculate the percentage of the rated bandidth you e!perienced during

the donload by dividing the reported throughput recorded in "tep 1%by the rated bandidth of your connection. #f you are using the $%&.11gstandard' the rated bandidth is 54 Mbps.Answer: 1aries

1&.What as the percentage of rated bandidth' in Mbps' you e!periencedhile transferring the same *le hile roaming?Answer: 1aries

13.What as the percentage of rated bandidth' in Mbps' you e!periencedhile transferring the same *le in ad hoc mode?Answer: 1aries

Review Questions, Lab 6-21. 0o did infrastructure mode throughput compare to ad hoc mode

throughput?Answer: The ad hoc +ode throu"hput should hae been faster&

&. 0o did "" throughput in this lab compare ith 6"" throughput in )ab5.&?Answer: The /SS throu"hput should be faster than ESS throu"hput&

3. 0o many times does a ireless frame contend for bandidth ininfrastructure mode compared to ad hoc mode?Answer: 8nfrastructure +ode fra+es contend t!ice as +an ti+es as ad hoc fra+es because thecontend fro+ the source to the access point, then a"ain fro+ the access point to the destination&

4. +he overhead associated ith C"M7C reduces total throughput byappro!imately the same percentage' regardless of the number ofdevices the ireless frame must pass through. +rue or -alse?Answer: )alse

5. +heoretically' roaming across an 6"" introduces more overhead thancommunicating ithin a "". +rue or -alse?Answer: True


8. What is the station9s role in the netork?Answer: 9oot +ode

,. :o you see the additional infrastructure ""#: kilo;limaap? :o you seestation;role repeater?Answer: opefull, es2 opefull, es

1&.What is your connected speed?Answer: 1aries, but probabl .; Mbps

1,.What is the reported throughput in kilobytes per second?Answer: 1aries


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&%.What is the reported throughput in Mbps?Answer: 1aries

&1.Calculate the percentage of the rated bandidth you e!perienced duringthe repeater mode donload by dividing the reported throughputrecorded in "tep &% by the rated bandidth of your connection. #f you

are using the $%&.11g standard' the rated bandidth is 54 Mbps.Answer: 1aries

&&.What as the percentage of rated bandidth' in Mbps' you e!periencedhile transferring the same *le in ad hoc mode?Answer: 1aries

&3.What as the percentage of rated bandidth' in Mbps' you e!periencedhile transferring the same *le in basic infrastructure mode?Answer: 1aries

&4.What as the percentage of rated bandidth' in Mbps' you e!periencedhile transferring the same *le hile roaming?Answer: 1aries

&5.#n +able (.1' enter the *le transfer throughputs in Mbps for each of thedi

5. +he repeater itself becomes a client of the root access point. +rue or-alse?Answer: True


,. What is the reported throughput in kilobytes per second?Answer: 1aries

1%.What is the reported throughput in Mbps?

#


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limit each access point to 35 associations?Answer:

Documents

CWNA Guide to Wireless LANs, Second Edition - Ch6