Drag and Drop Questions 3

Are you saying that there are new drag-and-Drop questions or are these the new drag-and-Drop questions

would like to know what is the complete answer for the LWAP drag drop question.
seems like its till step six only

or it is just only 6 steps. ?

@Certprepare…is this a six step process only…Thanks,

Hi there !
Thanks for for help
Hope will make me pass this exam.

Thanks for sharing !!!!

Q.No.2 in vce file 150 ActualTest-642-813-v2012-06-12-by-Glop

has Based on port security and users are assigned to the vlan regardless of the physical location within the campus n/w and the others in END-to-END vlan

May I know which order is the right answer ?

QNo.2 in this page and not on the vce file!!

@K.Visalini our order will never go wrong. Happy to help you

Thanks

For question 1, this is the right answer :

+ ip routing
+ voice
+ video interactive
+ video streaming
+ call signaling
+ network management

@ hamidou

Nope .. for q1 .. this is right answer

In its second release, for Cisco IOS routers only, AutoQoS Enterprise detects and provisions for up to ten classes of traffic, including the following:
•Voice

•Interactive-Video

•Streaming-Video

•Call-Signaling

•Transactional Data

•Bulk Data

•Routing

•Network Management

•Best Effort

•Scavenger

http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoSIntro.html

@Houston123

but this is only the class of traffic list, and they did not talk about the layer 2 cos value.

if you read the same document ( http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoSIntro.html ) you will see that Routing has the priority 6 in the layer 2 cos field. (Voice has 5).
It means that it s the Routing hwo has the highest priority.

Correct me if i am wrong

Well, it specifically only lists the details regarding IP Precedence bits

The IP Precedence bits, like 802.1p CoS bits, allow for only the following 8 values of marking (0-7):

–IPP values 6 and 7 are generally reserved for network control traffic such as routing.

–IPP value 5 is recommended for voice.

–IPP value 4 is shared by videoconferencing and streaming video.

–IPP value 3 is for voice control.

–IPP values 1 and 2 can be used for data applications.

–IPP value 0 is the default marking value.

But Wikipedia’s article puts network control over voice:

http://en.wikipedia.org/wiki/IEEE_P802.1p

Hamidou is correct….

IP Routing

6

CS6

48

6

Voice

5

EF

46

5

Interactive Video

4

AF41

34

4

Streaming-Video

4

CS4

32

4

Locally-Defined Mission-Critical Data (see note below)

3

—

25

3

Call-Signaling
(see note below)

3

AF31/CS3

26/24

3

Transactional Data

2

AF21

18

2

Network Management

2

CS2

16

2

Bulk Data

1

AF11

10

1

Scavenger

1

CS1

8

1

Best Effort

0

0

0

0

http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoSIntro.html

AutoQoS VoIP became available on Cisco IOS router platforms in 12.2(15)T.

In its second release, for Cisco IOS routers only, AutoQoS Enterprise detects and provisions for up to ten classes of traffic, including the following:
•Voice

•Interactive-Video

•Streaming-Video

•Call-Signaling

•Transactional Data

•Bulk Data

•Routing

•Network Management

•Best Effort

•Scavenger

@Anonymous
here they are mentioning only the classes, they didn’t put in order. Hamidou is correct.
Logically, how do you think you can leave routing protocols at the end, without OSPF, BGP, EIGRP…etc, nothing will work as it should…

Look at this table:
http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoSIntro.html#wp54417

Anyone can confirm the answer of the question 4. I am thinking that this would be the correct one:
+ The Lightweight AP requests an IP address via DHCP
+ The Lightweight AP searches for a wireless LAN controller using LWAPP in Layer 2 Mode
+ The Lightweight AP sends a LWAPP Discovery request to the management IP address of the Wireless LAN Controller via Broadcast
+ The Wireless LAN Controller responds with a Discovery Response from the Manager IP address
+ The Lightweight AP chooses the AP Manager with the least number of associated access points and sends the join request

anyone can confirm?

can someone please put the full answer of question 4, it should has 10 steps!

Can someone tell me for instance in question 3 is there a particular order they want these put in or is it ok once you pick all the correct ones? Exam tomorrow quick answer appreciated.

For Q4 I feel the below should be the right one. If an AP knows the management ip address of the Wireless LAN Controller then the Discovery request would be unicast and NOT Broadcast.

1. The Light Weight AP requests an ip address via DHCP
2. The Lightweight AP searches for a wireless LAN controller using LWAPP in Layer 2 Mode
3. The Lightweight AP searches for a WLAN in Layer 3 mode
4. The Lightweight AP sends a LWAPP Discovery request to the management IP address of the Wireless LAN Controller via Unicast
5. The Wireless LAN Controller responds with a Discovery Response from the Manager IP address
6. The Lightweight AP chooses the AP Manager with the least number of associated access points and sends the join request

Correct me if I am wrong.

can someone explain this

+ The IP Address is statically configured on the Lightweight AP
+ The Lightweight AP requests an IP address via DHCP

When a device Statically configured is it possible to request an ip via DHCP? waa?

@soheil

The process only has 6 steps.

@Houston123, @hamidou

Do we have a final conclussion of which one is first? ip routing or voice?

Kind regards.

Guys, I have been talking about q1 with a CCIE colleague and he sent me the link:

http://www.ciscopress.com/articles/article.asp?p=357102&seqNum=4

So, talking in general, I guess the best solution is putting “voice” as the first choice.

For Q1: I recently took the test and the question asks place the following in order from highest to lowest.

Hi guys,

Please let me know why, for Q4 they put as 1st option ‘ The IP Address is statically configured on the Lightweight AP’??? In Official cert book it’s clearly stated that the AP is zero touch and the steps begin with the dhcp discovery messages.

DP, i’ll have the exam on monday, can you pls tell me which of the D&D questions you had?

Thanks:)

going for exam

Good Luck give us feedback doing well

i guess q1 answer is correct, even though routing has cs6 , its not priority traffic . for example bandwidth is 4mbps , voice and video are taking somewhere 1mbps and routing takes 1mbps, but because voice and video are delay sensitive they should be sent first , this does not mean that routing will not be allocated it’s bandwidth , but because routing is less delay sensitive it will be sent after voice and video , but still will conform in 4mbps, so there will not be packet loss for routing , it will just get to destination bit later than voice and video.

voice = PRIORITY QUEUE
video = PRIORITY QUEUE or CBWFQ
routing = CBWFQ

Hooray, got a perfect score today…
Q1 answer should be:
+ voice
+ video interactive
+ video streaming
+ call signaling
+ ip routing
+ network management

Good thing LWAPP Drag and Drop wasn’t part of it, else I won’t get the perfect score.

Question 4:
1. The lightweight AP searches for a wireless LAN controller using LWAPP in Layer 2 mode
2.The lightweight AP choose the AP Manager with the most number of associated acccess points and send the join request.
3. The wireless LAN controller responds with a Discovery response from the Manager IP address
4. The lightweight AP sends a LWAPP Discovery request to the management IP address of the wireless LAN controller via unicast
5. The lightweight AP requests and IP address via DHCP
6. The lightweight AP searches for a WLAN in layer 3 mode

Q1 on test today

For Q4: from Cisco @ http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00806c9e51.shtml

The process is as follows:
1. – The LAPs issue a DHCP discovery request to get an IP address, unless it has previously had a static IP address configured.
2. – The LAP sends LWAPP discovery request messages to the WLCs.
3. – Any WLC that receives the LWAPP discovery request responds with an LWAPP discovery response message.
4. – From the LWAPP discovery responses that the LAP receives, the LAP selects a WLC to join.
5. – The LAP then sends an LWAPP join request to the WLC and expects an LWAPP join response.
6. – The WLC validates the LAP and then sends an LWAPP join response to the LAP.
7. – The LAP validates the WLC, which completes the discovery and join process. The LWAPP join process includes mutual authentication and encryption key derivation, which is used to secure the join process and future LWAPP control messages.
8. – The LAP registers with the controller.

Hi there

regarding to drug and drop Q’s in general – should they be in order ?!!

specially Q No.4 should i put it in order as it appear up there ??

please help me :(

Any doubts?

The IP Precedence bits, like 802.1p CoS bits, allow for only the following 8 values of marking (0-7):

–IPP values 6 and 7 are generally reserved for network control traffic such as routing.

–IPP value 5 is recommended for voice.

–IPP value 4 is shared by videoconferencing and streaming video.

–IPP value 3 is for voice control.

–IPP values 1 and 2 can be used for data applications.

–IPP value 0 is the default marking value.

@Nitin, a couple of thoughts regarding your comment:

1) The AP doesn’t have any means to know the WLC’s IP address when it tries to discover it. Remember that the Discovery request message can be heard by many WLCs, which means that it can reach MULTIPLE devices, and you cannot reach multiple devices with a unicast.

2) I was also thinking about point 3 of your sequence (The Lightweight AP searches for a WLAN in Layer 3 mode) which at a first glance made sense to me: if L2 mode is not successful, the LAP tries the L3 mode. However, there’s a catch, read carefully: “The Lightweight AP searches for a WLAN in Layer 3 mode”. The catch is that LAP searches for a WLAN Controller, NOT for a WLAN!

Finally, I think that the answer posted in this page is correct! Feel free to correct me.
gigi

Q1 and Q3 in test today

Q1 – from the link given in the answer, goto Figure 1-5 which shows the order.
Voice
Video Interactive
Video Streaming
Call Signaling
IP Routing
Network Management

Cheers

Q1 – Figure 1-5 QoS Baseline Model

Do the order of the answers have to be the same?? Will they deduct points if the order of correct answer is not the same??

order should be same. because i have choosed the correct answers but order was different i lose the marks in CCNA. So drag and drop ordered should be same.

Q4 – unicast or broadcast? I will have the exam tomorrow!
Please help!
Thanks

From Last update Pass4Sure

1. The lightweight AP searches for a wireless LAN controller using LWAPP in Layer 2 mode
2.The lightweight AP choose the AP Manager with the most number of associated acccess points and send the join request.
3. The wireless LAN controller responds with a Discovery response from the Manager IP address
4. The lightweight AP sends a LWAPP Discovery request to the management IP address of the wireless LAN controller via unicast
5. The lightweight AP requests and IP address via DHCP
6. The lightweight AP searches for a WLAN in layer 3 mode

Idon´t think this is right

The IP Address is statically configured on the Lightweight AP <<<< what that mean after i config a static IP in AP than they search for other IP or the AP send requst to DHCP !!!!!!!
+ The Lightweight AP requests an IP address via DHCP<<<< wrong

thank you all

Hello Guys for Q4 i believe it is tricky and forcing us to choose the way based on this statement “Discovery request to management IP address” which should be in Unicast and not broadcast. Also, since the IP address is known then it is known via Over-The-Air provisioning which is used in layer 3 LWAPP. Layer 3 LWAPP is attempted if layer 2 fails.

in my opinion it should be like this
1- The lightweight AP requests and IP address via DHCP
2- The lightweight AP searches for a wireless LAN controller using LWAPP in Layer 2 mode <– it will fail in layer 2
3- The lightweight AP searches for a WLAN in layer 3 mode <– LAP will try in layer 3 and gets to know the WLC IP address via OTAP
4- The lightweight AP sends a LWAPP Discovery request to the management IP address of the wireless LAN controller via unicast
5- The wireless LAN controller responds with a Discovery response from the Manager IP address
6- The Lightweight AP chooses the AP Manager with the least number of associated access points and sends the join request

Please note that there is no other way that the LAP knows the IP address of the WLC only if it is using Layer 3 LWAP and OTAP is enabled (disabled by default)

Does any one agree with this?

what I need to say the LWAPP is a Layer 2 Protocal

but not all APs support over Air provisioning like AP 12XX

@ Anonymous

i disagree with you .. LWAPP is layer 2 AND layer 3 protocol .. please refer to this link http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00806c9e51.shtml#l2lwaap

you will find how WLC is choosen based on layer 2 and layer 3 (if layer 2 LWAPP fails) in details. Please read the process carefully you will find that to send to a WLC IP address this must be in layer 3 LWAPP. In the context you will find this statement “Note: Because the LAP knows the WLC IP address through neighbor messages, the LAP sends a unicast discovery request to the WLC. In this way, this step is unlike the method in step 1 of this procedure, in which the LAP sends out a local subnet broadcast.” so broadcasts are sent in layer 2 when the IP is unknow, if the IP is well known a layer 3 unicast in sent to this WLC.

Does it make sense this way? this question is pretty confusing.

hello any one tell me that wireless d$d is in correct order or not i have exam on 20 th