Share your ARCH Experience

all right pals. this is what we’re going to do.

we’re going to take Cisco.Actualtest.642-874.v2011-11-14.by.JTA.274q.vce file as our baseline file and we’re going to chack answer by answer validating with the study gide, always prefering the 542-874 study gide. If someone have it, please share it so we can veryfie and validate faster.

http://www.examcollection.com/cisco/Cisco.Actualtest.642-874.v2011-11-14.by.JTA.274q.vce.file.html

there is the link

166-B seems to be better answer than 166-A

@ Hpal

If Add got 832 these are a an awful lot of answers to start changing

24-C is wrong, because half-duplex is SCSI paralel not serial; better answer is 24-B, because sarial attached SCSI (SAS) is serial & full duplex standard

174-A is better – content engines should be placed close to the servers, study guide pg.304

my mistake, i confuse with content switch, so 174-B is probably good

43 should be C, http://www.cisco.com/en/US/docs/solutions/Enterprise/Campus/CampIPv6.html#wp390281

Krishnas mixed in with hpal

04. C & D
09. C & D
14. C
17. C or AC(Just in case 2 choices offered)
19. A
22. F – poss e
28. C
42. B = poss c
49. D & F
51. A & C
56. C
58. A, C, D, E
59. C
82. A
90. C
97. C
99. B
104. D – poss b
149. B – poss a
156. B
187. D
230. B
250. D
258. B

new ones
62 a but b seems to better
166 – b
24 – b
174 – b

For question 22( hate to rehash this one) – the exact veribage from Tearse book is “A first-hop redundancy protocol is needed only if the design implements Layer 2 between the access switch and the distribution switch. ”
“E” seems to be the best match. The question becomes – is “distribution blocks” equivilant to “distribution switch”?
Thoughts?

Hi can any body Please tell me correct answer for the below Question,and i also download
the recent VCE uploaded by JTA 274q.vce that answer are correct to pass the exam, On 19th Nov saturday i am giving the exam.
SO please share answer for below question.

When is the site-to-site remote access model appropriate? (Choose one.)
A. for multiple ISDN connections
B. for modem concentrated dial-up connections
C. for a group of users in the same vicinity sharing a connection
D. for use by mobile users

To securely transport EIGRP traffic, a network administrator will build VPNs between sites. What
is the best method to accomplish the transport of EIGRP traffic?
A. IPSec in tunnel mode
B. IPSec in transport mode
C. GRE with IPSec in transport mode
D. GRE with IPSec in tunnel mode

There are three steps to confirm whether a range if IP addresses can be summarized. Which of
the following is used in each of three 3 steps?
A. The first number in the contiguous block of addresses
B. The last number in the contiguous block of addresses
C. The size of the contiguous block of addresses
D. The subnet mask of the original network address

Which two design concerns must be addressed when designing a multicast implementation?
(Choose two)
A. only the low-order 23 bits of the MAC address are used to map IP addresses
B. only the low-order 24 bits of the MAC address are used to map IP addresses
C. only the high-order 23 hits of the MAC address are used to map IP address
D. only the low-order 23 bits of the IP address are used to map MAC addresses
E. the 0x01 uu4t MAC address prefix is used for mapping IP addresses to MAC addresses
F. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses

OSPF stub areas are an important tool for the Network designer; which of the following two should
be considered when utilizing OSPF stub areas?
A. OSPF stub areas increase the size of the LSDB with the addition of Type 3 and 5 LSAs
B. OSPF not so stubby areas are particularly useful as a simpler form of summarization
C. OSPF stub areas are always insulated from external changes
D. OSPF stub areas can distinguish among ASBRs for destinations that are external to the OSPF
domain
E. OSPF totally stubby cannot distinguish among ABRs for the best route to destinations outside
the areas

Thnx
Sagar

imho correct answers are:
C. for a group of users in the same vicinity sharing a connection
C. GRE with IPSec in transport mode
C. The size of the contiguous block of addresses

D. only the low-order 23 bits of the IP address are used to map MAC addresses
F. the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses

C. OSPF stub areas are always insulated from external changes
E. OSPF totally stubby cannot distinguish among ABRs for the best route to destinations outside the areas

regarding the answer from HPAL regarding mapping IP to MAC

The answers are tricky but it’s actually A and F. NOT D and F.

the 28-bit multicast IP address space is mapped onto a 23-bit MAC
address space by mapping the lower 23-bits across from the IP address to
the MAC address

ccdp study guide at pg. 457 says:
The translation between IP multicast and Layer 2 multicast MAC addresses is achieved by the mapping of the low-order 23 bits of the IP (Layer 3) multicast address into the low-order 23 bits of the MAC (Layer 2) address.
So, I think correct answer is:
D. only the low-order 23 bits of the IP address are used to map MAC addresses

D and F are right.
and item 96 the Answer are A ,C ,but B,F better ?

Regarding the posting from hpal. Again the answer is A not D.

As you indicated in the explanation from page 457 its says map the IP to the MAC. Not MAC to IP.

It’s TRICKY but D actually says you are going to use the lower-order 23 bits of the IP to map the mac address into. So in english…map the MAC to the IP. That is the reverse of what you are looking for.

Correct answer:
A: only the low-order 23 bits of the MAC address are used to map IP addresses

As you study guide indicates….it answer A…….Map IP to the lower 23 of the MAC.

HPAL…debate it all you want. You either understand it or you don’t. That is the problem when you only try to learn the answers to the questions vs the content. Good Luck!

My certs: CCNP,CCDA,CCNA Security,CCNA Voice, CCNA Wireless, CCENT, CSE, A+, Network+,Security+, INFOSEC 4011 Recognition.

Correction to hpal what are your thoughts on questions:
22.
90.
104.

Correction to hpal please dont put your certs on here thats embarrassing.

Unless youve got a CCIE

English is not my language, so sorry, that I don’t understand to question about IP-MAC mapping…
22E
90C
104B
new questions:
result of having EIGRP network with multi autonomous system
benefits of vsphere
passed CCDP :)

hi HPAL — congrats.. please update the VCE with the correct one..

my passing was below 830, so I do lot of errors. I wouldn’t like confuse other with my potentially wrong answers.

by the way hpal.. can are u using JTA vcE

sory for my post..hpal did u used JTA vce..

Today I passed with 840….got 4 d&d in all. and about 4 new questions.

90 % from first 70 questions…AT58-1Sept2011

Design advanced enterprise campus networks — 93
Design advanced IP addressing and routing solutions for enterprise networks — 56
Design WAN services for enterprise networks – 75
Design an enterprise data center – 85
Design security services – 50

Thanks to Sri and others..

Hi Guys,,

Thanks for your support for passing out in CCDP exam..

I giving online 650-376 exam in coming 2-3 days so please anybody having dumps, so please share with me.. It will be helpful to me..

Thanx..

For preparing I used 642-874-AT5.8-Mod with my personal “corrections”.
I have almost same score as Sugar, it seems, that security services and ip addresing & routing are most “problematic” areas;)

hi HPAL can you share ur personal correction

hi Sagar can you tell us what is the new 4 question if you remember..

Q49 – answer is A, F and NOT D, F. I’m absolutely certain of this. It’s in the Cisco Official Curriculum (version 2.1) word for word. Page 10-11 near bottom of page. “Only the low-order 23 bits of the Layer 2 MAC address are used to map Layer 3 IP addresses.”

agreed!

Jay…how is listing my certs embarrassing??? I won’t degrade this very helpful website and resort to making this a pissing match. Think about your comment for a minute….how does having a CCIE carry any relevance to the discussion. A CCIE is NOT the top of the food chain. A Cisco Architect is. A CCIE is only one step higher than any professional level certification. I have worked with many CCIE’s in the past when I worked for CISCO and they seemed to be very impressed by my broad spectrum of Cisco certs.

Wyreless i think you wrong
the connrect one is :
First, it is important to understand how Layer 3 multicast addresses are mapped to Layer 2 multicast addresses. All IP multicast frames use IEEE Media Access Control (MAC) layer addresses beginning with the 24-bit prefix of 0x0100.5e. When mapping Layer 3 to Layer 2 addresses, the low-order 23 bits of the Layer 3 multicast address are mapped into the low-order 23 bits of the IEEE MAC address.

see the link above of cisco doc:

http://www.cisco.com/en/US/tech/tk828/technologies_tech_note09186a0080094b55.shtml

correction to hpal no one cares about your certs bore off

I think its fair to say the JTA VCE with HPAL added ones will be enough to move with any additional findings out will have to be done reading the Cisco press books etc.

Any additional pickings on the questions seems a bit too controversial, and there seems a lack of agreement between Cisco peoples on this site.

So im going to run with this

maor, I appreciate your comments and I hope that you do well in your test. My desire is to help everyone with this question, and as I said, I’m absolutely certain that this is the answer for the test. The answers for the questions come directly from the Cisco Official Curriculum – nowhere else! Could it be wrong from a networking perspective? Perhaps, though I doubt it, but it really doesn’t matter in this context. These people are trying to pass the test and the answer to the test question is without doubt from the Official Curriculum, and therefore the answer that I provided.

Which file are you refering to guys while giving the Q nymbers and the answers to them?? ;/
I must say I am lost…

Looking for feedback on question# 226

– Which two design recommendations are most appropriate when EIGRP is the data center core routing protocol? (Choose two.)

A. Summarize data center subnets
B. Use passive interfaces to ensure appropriate adjacencies.
C. Tune the EIGRp timers to enable EIGRP to achieve quicker convergence.
D. Adjust the default bandwidth value to ensure proper bandwidth on all links.
E. Advertise a default summary route into the data center core from the aggregation layer.

Dumps say A&E.

My thought is A&B may actually be correct.

At the below link page Cisco Data Center fundamentals book page 859. EIGRP in the DATA Center section it indicates you would advertise a default route from the CORE to the Agg layer. Summarize at the Core and use Passive Interface to form correct neighbor/adj relationships…..any thoughts.

http://books.google.com/books?id=DRIryrLoxKkC&pg=PA859&lpg=PA859&dq=use+eigrp+data+center+core&source=bl&ots=SHGqzvURWc&sig=uf2EHB0Bh8xXN18PwTkxkqIkzVg&hl=en&ei=bCjQTqSiNci42QXr24CVDw&sa=X&oi=book_result&ct=result&resnum=5&ved=0CEIQ6AEwBA#v=onepage&q=use%20eigrp%20data%20center%20core&f=false

E is wrong I guess, doesn’t make sense for me.

I would go with A&B as well

Which file are you refering to guys while giving the Q nymbers and the answers to them?? ;/

What’s more, I see there is a new version of dumps on AT and P4S.
Anybody seen that already?

HI friends ,I passed 874 today but only hit 818 , there’re a few wrongs in 642-874-AT5.8-Mod , I have to say you’d better read ccdp 2nd or 3rd version if you have enough time .
ip address, routing solution for enterprise and wan service only got 50% .
HTH

Guys, configung one for me:
Which of following should be considered when utilising STUB areas in OSPF:
B. OSPF NSSA are particularly a simpler form of summarisation
C. STUB areas are always insulated from external changes
E OSPF totally stubby cannot distinguish among ABRs for the best route to dest. outside the areas

E is definitelly correct. I would say that B is also correct.
C seems correct but thae question is, if “always” is not the key word to do it not correct

any ideas?

Another one, which is not sa clear for me:
why is STP required when vlans spann accross access layer switches:
A. to ensure a loop-free topology
B. to protect against user-side loops

For me, both are correct…B. will always be true, and additionally when vlans spann access switches, there are L2 loops in physical, so we need STP to provide logical loop-free topo.

What are your opinions?

Hi there, nobody answers my questions but I will take a risk and raise another one :)
It is connected with summarisation

There are 3 steps to confirm whether IP range can be summarised. When of the following is used in each of these steps.

I will try with C. size of the contiguous block of address as it will represent N-number from the formula in the book.
WOuld you agree with me?

Confused…thanks for the feedback.

I am under the same impression regarding the summarization question you are correct regarding “C” or Contiguous block of address’.

I believe everyone is referring the questions back to the AT5.8_1Sep2011 version of actualtests.

I take my exam on tuesday. If I pass I will post my own pdf that I have put together using the input from AT5.8_1Sep2011 and I also purchased the pass4sure.com exam pack. I also attempted to incorporate the feedback from HPAL and Krishna. There are what seems to be a large number of wrong answers even with the cross referencing between multiple sources…I went through 24 questions yesterday that I identified as being answered possibly wrong.

Hopefully I pass on Tuesday and I can put this to rest for everyone!

Herman since you took the exam most recently…any additional feedback for the group regarding new questions or specific questions you think are incorrect?

Correction to hpal, I am taking the exam on Tuesday as well :)
2pm GMT +1 ;)
And you?

Do you have the recent p4s from 24th Nov? Are there any new questions?

Correction to hpal, please provide some any contact to you, so we can share information while preparing to the exam…
And please let me know which -4s you bought and if that was worth the money.

Next question to those that have already taken the exam.
Did wireless questions appeared in -874 version?
I see wireless is completly missing in the latest curriculum….

OK i do not have a hope that anybody answers anymore…but i will ask :)
Q125:
A. definitely true
B & E definitelly wrong

What is the second good answer…C or D?? For me both are ok.

A&D is correct, look at pg. 213,214, answer C doesn’t match exactly (it’s writen, that RSTP is used in looped triangle design and STP is used in looped quare design)