Wireless Questions

I must digg your post so more folks can look at it, very useful, I had a tough time finding the results searching on the web, thanks.

- Norman

the useful advises u provided do help the research for my group, thanks.

- Lucas

Hi,

I am preparing for the SWITCH exam (642-813) using the Cisco press book : CCNP Switch 642-813 Official Certification GUide by David Hucaby. There is no mention on the Cisco ADU and configurations of Windows XP clients. Are there anything that i have missed out?
Appreciate any kind help.

question 5
answer A doesnt make sense. Isn’t a WLAN by definition a half-duplex network? You cannot send and receive WLAN signals simultaneously.

youre correct omgman. But surely youre used to how Cisco phrases these questions by now?

@omgman

yes, answer A should be:

A. WLAN client will operate in half-duplex mode.

@Ken Iosa
I sat twice on this exam recently. No questions about ADU and Windows XP.
I guess they are frm the old exam (642-812).
Hope this helps.

@pgianpy, thanks for the info

Question 5 is garbage. The answer could be A or D depending on how you want to read the question. Man sometimes I hate Cisco.

Hi Guys

Please update fliper 496 dumps are still valid,I would like write exam in with in weak days,

@gbulan, @omgman

It should actually read…

“A wireless client operating at a lower data rate in a particular WLAN will delay all clients in that same WLAN.”

All clients operate at half-duplex and in general they all delay each other. Only one client can communicate through an AP at one time. If you spread that WLAN over several APs and clients are distributed across those APs, Then the clients affect each other less and less.

The more appropriate question is as I have stated above. If a client is operating at a lower data rate, and there is only one AP, then the other clients must wait on the transmission to finish(which takes longer b/c they are connected at a lower speed)….

my 2 cents

hi,somebody knows where else I can get more questions for this exam,thanks

@ Anon
Fully agree with u

Reference for question 10:
http://www.cisco.com/en/US/docs/wireless/wlan_adapter/cb21ag/admin/1.0/administration/guide/au_prof.html

hi
plz someOne share latest pass4sure dumps
i have a test next
plzz someOne help me its argnt

LWAPP the best brief http://www.rhyshaden.com/lwapp.htm

Hi guys

I`ll make my exam next week, i want to know how much(generally) of question about wireless and voice appers on the exam ?

Already talked to some people and I was told not appear more than two questions from each topic, this is true?

Thank you

Hey guys, is this the newest version of the exam?

hey is wireless questions are coming in switch exam?
i think it has removed from switch exam.

can anyone confirm how many wireless questions can be expected for the exam?

@ legitimate

your not legitimate, i am

hi friends, i’ve just passed an exam 2 hours ago, and there was only 1 question in terms of wireless… and an answer is “c” on that :)

so no need to go through this paragraph at all

Good luck

if(I_see_Q5_in_tomorrow’s_exam_in_same_words==TRUE)
{
while(1)
{
printf(“%hate_u_emotion”,&CISCO);
}
}

Q9 is really odd, because L2 LWAPP is not supported on new APs:
“Layer 2 LWAPP is not supported by lightweight Cisco Aironet 1200, 1252, 1130AG, or 1240AG access points, or the Cisco 2006, WiSM, or WLCM series WLCs”.

And (about Q9) there is a DHCP server (probably with 43 option), so LWAPP Discovery Message is unicasted.
So the answe should be “C”?!

Guys there are alot of lengthy wireless questions in DUMPS. can any one tel how many wireles questions were in paper?

IT can’t be true , all wireless clients are half duplex and u can’t change the Operation mode ,Because of the hardware Limits.

it can be one client that connected in lower speed to the segment will slow down all the ather clients ..

9tut plz check the Answer..

it Seems to be that 9tut is not update’s any more , it very nice that a web site like this is Exists but this worng “to Update and Forget” , i comment all the time on errors in the questions and also alot of ather Visitors do it too .. maby if u will add an Option were we can comment on a specific question the web site will Maintain him self .. Thank you!

We can read and remember the books all we want, but Cisco writes the questions in such a difficult and convoluted way, that some questions are almost impossible to answer.

I can bet many experienced people currently working in the networking field wont be able to pass CCNA, let alone CCNP.

Hello certprepare,

Thanks a million for this webpage.

For Question 5, choice A should be:

A. A wireless client operating at a lower data rate in a particular wireless LAN will delay all clients in that same WLAN.

The reason is because it is using a slower speed/data rate, each packet sent and each acknowledgement received by such a client will take longer.

@Anonymous:

Q5: D is the incorrect statement in the second part of it (WLANS is NOT easily handle an increased demand of channel contention according to Cisco Press-author)

“Share your SWITCH Experience” has been missing from this site, and now “SWITCH FAQs & Tips” is too. (Left hand corner). Please whats going on?

@site admin

please kindly restore the share your switch experience forum, we need this for the completeness of this site

Yes this is true, Anonymous! Attention everyone:

“For Question 5, choice A should be:

A. A wireless client operating at a lower DATA RATE in a particular wireless LAN will delay all clients in that same WLAN.

The reason is because it is using a slower speed/data rate, each packet sent and each acknowledgement received by such a client will take longer.”

Wireless is half-duplex…remember collision avoidance (CA).

I hate Cisco sometimes but answer A, makes sense!

Hi Guys,

Seeing the answer right in front your eyes before making selection is annoying. So i grabs all of the questions on this site and put them into VCE file to make my life easier. Be sure to check back CertPrepare site regularly for updates.

Here is the file: http://www.4shared.com/file/C5hmKPbb/CCNP_642-813_CertPrepare-by_Hu.html

Best of luck !!!

I’ve read the entire CCNP SWITCH Official Certification Guide, and it makes absolutekly NO mention of “Aironet”, whatever that is, yet 50% of these questions are about Aironet APs! What’s up with this???

The CCNP ROUTE Official Certification Guide was very good, but the SWITCH version seems to be completely useless to pass this exam. I feel I have wasted three weeks of my life.

Comments?

this is very helpful

yeah i agree with the earlier comment, none of this stuff was in the Foundation Learning Guide.

none of this stuff is in the latest dumps!

(Electronics) very cool. the usb drive is EASY to map as a network drive with a letetr and it works fast enough. right now i’m backing up from the drive wirelessly to my computer and it is transferring data at a rate of 1GB in about 20 minutes. to some that will sound slow, but to me thats VERY fast. especially when you consider the price at which you’re getting this utility. you can turn a USB drive into a network drive. (mine is 250 GB external). i still have not read the instructions for the device yet. tomorrow i will look into customizing the security options. i am terribly excited about now having a network drive from which all 3 of my computers can access files. no more storing pictures or music or files on 1 of the 3, now everything is stored on the network drive and backed up to my main computer. my wife and i love it. just $85. also interesting is that the compression rate is currently about 20%, so i think that means by the time my current backup is complete, my 44GB network drive might be compressed to under 9GB. i’ll see, but it should give you some idea. as for the networking features, the signal is very strong and reaches in my basement, so my buddy down there is happy too. i find the description of the network controls you get to be really understated. you can block and allow websites and computers and you get a lot of other useful controls. its very user friendly and the only thing you’ll really need to refer to the manual for is to see how to access the usb drive from your computer its EASY. the tricky thing is restricting admin access to just yourself trying to figure that out. will do it tomorrow. i hope this review helps. i would recommend to anyone to get this router i’m not a techie, so my expectations are normal and this has exceeded my expectations by far. its very similar to using the network drive at my job. the best part of it all to me is that i now have all my files stored in one place and finally made good use of my external usb hard drive, which will now always be connected. can’t beat that. good luck and vote me up if this review was helpful.

i have book for the 01 November.

Q1 – Something’s up with Question 1: I think (hope) the wording is different on the TEST.

Which two Lightweight Access Point Protocol (LWAPP) statements are true? (Choose two)

A. Layer 3 LWAPP is a UDP / IP frame that requires a Cisco Aironet AP to obtain an IP address using DHCP.

### the last three choices appear to worded wrong – or??/

B. Data traffic is encapsulated in UDP packets with a source port of 1024 and a destination port of 12223.
C. Data traffic is encapsulated in TCP packets with a source port of 1024 and destination port of 12223.
D. Control traffic is encapsulated in UDP packets with a source port of 1024 and a destination port of 12223.

These all specify SOURCE ports of 1024; but this is not right; Check this link out:

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_white_paper09186a0080901caa.shtml

“The AP uses ephemeral ports when it talks to the WLC. The port numbers used by the WLC, in return, are UDP port 12222 and UDP port 12223 for LWAPP Data and LWAPP Control traffic respectively. An LWAPP control frame is distinguished from an LWAPP data frame by the “C” bit in the header flag field of the LWAPP. If set to 1, it is a control frame.”

We can determine that LWAPP control and data both use UDP 12222 and 12223. We also know that Control traffic is encrypted.

We can determine that LWAPP uses UDP, so FOR SURE C is wrong.

A. ; although poorly worded – makes sense as a right answer; as you do need an IP address for the AP (from a DHCP server) to connect with the controller to exchange LWAPP.

My problem is with B. and D. hope its different wording…. :)

Are these still the valid Questions ? because they are totally new and almost none of them are present in the latest dumps like actual test, etc??
please if anyone can update me?? i have a paper in a week.

Are there any new updates after the above mentioned questions?

Hi, There are lots of MCQ questions that are in the certprepare but not included in the latest dump. Are those questions no more included in the exam???

hi gays this question is not in the dumps of boomish and so many question is not there , there many new question here in this website and i don’t know what is the true the dumps or this website plez can any one help my or tell me the true ………….thank

nothing from this section was in test today. not even the ghastly LWAPP drag and drop question.

My 2 cents:
Question 5, option A is correct but is hard to interpret.
IEEE 802.11 WLANs are always half duplex because transmitting and receiving stations use the same frequency and only one station can transmit at any time.
In the IEEE 802.11 standards CSMA/Collision Avoidance works by requiring all stations to listen before they transmit a frame, if another device is already transmitting a frame the station wanting to send data must wait until the frame in progress has completed, then it must wait until the DIFS timer expires, and then wait the random backoff time.
In this answer the phrase:
A WLAN client that is operating in half-duplex mode will delay all clients in that WLAN.

Should be read as follows:
A WLAN client, that is operating in half-duplex mode as described in 802.11 IEEE standard, when transmitting a frame, will delay all clients in that WLAN because they must wait until the frame in progress has completed, then they must wait until the DIFS timer expires, and then wait the random backoff time.

I’m hoping this is ‘dated’ material, and was POSTED on : *January 20th, 2012.* That’s WHY they have the CCNA Wireless exam now, and removed the Wireless topcis from our SWITCH Exam!

@vaji
what are you talking about bro ? wireless is removed from switch exam ??????

Hi All,
wireless is still on ccnp switch exam?