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Exam AZ-800 topic 4 question 5 discussion

Actual exam question from Microsoft's AZ-800

Question #: 5
Topic #: 4

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
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You are planning the deployment of DNS to a new network.
You have three internal DNS servers as shown in the following table.

The contoso.local zone contains zone delegations for east.conloso.local and west.contoso.local. All the DNS servers use root hints.
You need to ensure that all the DNS servers can resolve the names of all the internal namespaces and internet hosts.
Solution: On Server2 and Server3, you configure a conditional forwarder for contoso.local.
Does this meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: B 🗳️

by nefaxto at June 22, 2022, 1:36 p.m.

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51007

Highly Voted 1 year, 5 months ago

Selected Answer: B

I say NO because it's not sufficient; You *do* need to have S1 as a conditional forwarder for S2 and S3... but S2 and S3 also need to be set up as cond. forwarders for EACHOTHER, otherwise they wont be able to find eachother. S2 and S3 would NOT be able to find eachother via S1 as a result of delegation.. In fact, delegation prevents it; Since they are delegates of S1, they are authoritative for their own domains.. contoso.locol/S1 is no longer authoritative over them, so it could not help S2 find S3 or vice versa. Please correct me if needed.

upvoted 10 times

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empee1977

Highly Voted 10 months, 1 week ago

Selected Answer: B

No, this solution would not meet the goal. A conditional forwarder is used to forward DNS requests to specific DNS servers based on the domain name queried. By configuring a conditional forwarder on Server2 and Server3 for contoso.local, it would only forward requests for that specific domain to another DNS server, but it would not ensure that all the DNS servers can resolve the names of all the internal namespaces and internet hosts.

upvoted 8 times

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syu31svc

Most Recent 8 months, 2 weeks ago

Selected Answer: B

the east and west child domains need to be included as well to "resolve the names of all the internal namespaces" Answer is No

upvoted 2 times

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Lu5ck

11 months, 3 weeks ago

Selected Answer: B

No. Conditional forward can work, make no mistake but the problem here is they are forwarding to a domain name, not a ip address. How they know the IP address of the domain they don't know?

upvoted 3 times

Lu5ck

11 months, 3 weeks ago

Nvm. After pondering on the "english", it is saying that it only create condition forwarding for one zone while excluding the other zone. So the answer still B.

upvoted 1 times

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johosofat

1 year, 1 month ago

In order for this question to be true, the dns replication must be for forestdns zones- otherwise this must be false , without creating addtional zones in the child domain, and the forwarder back to the parent- https://blogs.msmvps.com/acefekay/2010/10/01/dns-parent-child-dns-delegation-how-to-create-a-dns-delegation/

upvoted 2 times

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igymo

1 year, 1 month ago

Selected Answer: B

Things is that this is trick question. You cannot create conditional forwarder for zone that already exist. You usually create cond. forwarders to resolve dns queries from another forest domain , that usualy have another dns name.

upvoted 3 times

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nefaxto

1 year, 5 months ago

B Correct https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/cc794735(v=ws.10)

upvoted 2 times

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