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Q19 PassGuide for Tshoot is wrong;)


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#1 magicpie1980

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Posted 09 July 2010 - 01:52 PM

Question:19
Which of the following characteristics describe the BPDU Guard feature? (Choose all that
apply.)
A. A BPDU Guard port should only be configured on ports with PortFast enabled.
B. BPDU Guard and PortFast should not be enabled on the same port.
C. BPDU Guard is used to ensure that superior BPDUs are not received on a switch port.
D. A BPDU Guard port receiving a BPDU will go into err-disable state.
E. A BPDU Guard port receiving a BPDU will be disabled.
F. BPDU Guard can be enabled on any switch port.
Answer: A, E


I find this wrong;)

I believe the correct answer is A & D;)

Do you guys agree?
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#2 CISCOFinder

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Posted 12 July 2010 - 05:09 PM

it is not disable state it is err-disable state.
A, E is right answer (its my point of view )

#3 magicpie1980

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Posted 13 July 2010 - 08:25 AM

Then you agree with me, so E is wrong! Because E is put into disable state. It isn't!! D is correct because the port is put into err-disable state....

So the dump answer is wrong!

The answer is A and D
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#4 CISCOFinder

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Posted 13 July 2010 - 10:53 AM

Brother i listen nothing come from dumps. second what are u doing i have planed to take exams at 18 august but i am totally blank about labs please help me out
and give me any suggestion from that post

Quote



#5 CISCOFinder

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Posted 20 July 2010 - 05:38 PM

brother i am wrong port will go disable state not err-disable u can read it in cisco offical book

#6 slymoose

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Posted 20 July 2010 - 06:13 PM

BPDU guard will put the port in err-disable

ref: http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a008009482f.shtml#topic1

#7 magicpie1980

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Posted 20 July 2010 - 08:40 PM

View Postslymoose, on 20 July 2010 - 06:13 PM, said:


Hey Sly;)

Yep totally right,

BPDU Guard will put a port into err disable state if it recieves a BPDU on a port with it running;)

MP
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#8 CISCOFinder

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Posted 22 July 2010 - 04:35 AM

CCNP TSHOOT 642-832 Official Certification Guide
Page 274
Protecting with BPDU Guard

Quote

"if a port enable for BPDU Guard receives a BPDU , the port is disable"
u can verify in the cisco official guide

in the following reference which my friends paste u can also verify that port goes into disable state not err-disable state

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a008009482f.shtml#topic1

Quote

2000 May 12 15:13:32 %SPANTREE-2-RX_PORTFAST:Received BPDU on PortFast enable port.
Disabling 2/1
2000 May 12 15:13:32 %PAGP-5-PORTFROMSTP:Port 2/1 left bridge port 2/1


#9 slymoose

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Posted 22 July 2010 - 02:29 PM

The port is "disabled' when it enters err-disable.  

The reason this is important is you can adjust err-disable recovery to recover the port state to enable.

Err-disable is a more specific form of "disabled" and is the correct answer.

"At the reception of BPDUs, the BPDU guard operation disables the port that has PortFast configured. The BPDU guard transitions the port into errdisable state, and a message appears on the console."

Try reading the whole quote next time.

#10 CISCOFinder

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Posted 23 July 2010 - 05:58 AM

Respected brother
errrdisable state is general it goes due to bpdu guard root guard security
similarly first step when it received BPDU it disable the port.
second it move to the port into errdiable state
not all switches goes into errdisable state . some goes and some remain in disable state
but all switches goes into disable state

so my point of view and according to dumps it is right that it will be disable
but u  are also saying right . i agreed that
thanks for that

View Postslymoose, on 22 July 2010 - 02:29 PM, said:

The port is "disabled' when it enters err-disable.  

The reason this is important is you can adjust err-disable recovery to recover the port state to enable.

Err-disable is a more specific form of "disabled" and is the correct answer.

"At the reception of BPDUs, the BPDU guard operation disables the port that has PortFast configured. The BPDU guard transitions the port into errdisable state, and a message appears on the console."

Try reading the whole quote next time.





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