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Exam AZ-800 topic 4 question 9 discussion

Actual exam question from Microsoft's AZ-800
Question #: 9
Topic #: 4
[All AZ-800 Questions]

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.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
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.contoso.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, you create a conditional forwarder for contoso.local and west.contoso.local. On Server3, you create a conditional forwarder for contoso.local and east.contoso.local.
Does this meet the goal?

  • A. Yes
  • B. No
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
by Mular5 at June 18, 2022, 10:37 a.m.

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51007
Highly Voted 3 years ago
Selected Answer: A
YES- Delegation tells S1 how to find S2 and S3. Cond forward from S2 to S1/S3 and from S2 to S1/S3 allows all internals to resolve. And they can all find internet hosts because theyre using root hints. Please correct me if needed.
upvoted 15 times
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jpcapobianco
Most Recent 3 months, 3 weeks ago
Selected Answer: A
Yes, the answer to the question could be "YES", because conditional forwarders configured on Server2 and Server3 would enable queries to be forwarded to the authoritative DNS servers for contoso.local, east.contoso.local, and west.contoso.local. This setup ensures resolution of the entire internal namespace, achieving the desired result. However, conditional forwarders have some limitations compared to DNS delegation: They are static, meaning manual updates would be necessary if there are any changes to the IP addresses of the destination DNS servers. They don't integrate as seamlessly into the DNS hierarchy as delegation does. If the system remains stable and IP addresses don’t change often, this solution works fine.
upvoted 1 times
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sardonique
10 months, 2 weeks ago
looks nice, on the S2 and S3 (east and west) perspective everything is fine. one doubt, Server1 how is going to solve names in east and west?
upvoted 2 times
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SIAMIANJI
1 year, 2 months ago
Selected Answer: A
Indeed, the solution you provided meets the goal. By creating conditional forwarders on Server2 and Server3, you ensure that DNS resolution for the internal namespaces (such as east.contoso.local and west.contoso.local) is handled correctly. This approach allows you to resolve both internal namespaces and internet hosts effectively.
upvoted 2 times
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Payday123
1 year, 7 months ago
Selected Answer: B
There is no forwarder to internet DNS
upvoted 1 times
Payday123
1 year, 7 months ago
There are root hints so it will work (A). Ineffectively but it will work
upvoted 1 times
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MiMojo
2 years, 2 months ago
Again, the solution has to enable each DNS server to resolve names in all three domains. Forwarding will resolve the name for the client, but that is passing the responsibility to another DNS server, therefore not meeting the requirements of the solution.
upvoted 4 times
rknichols01
1 year, 5 months ago
only partial correct statement. the DNS server requests the information, then adds it to the local cache and then sends the information to the client.
upvoted 1 times
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tanoj
2 years, 2 months ago
My answer is B : when you create a conditional forwarding for east and west to the parent domain. It has all the information for dns. so when west queries anything it should query the parent domain and from there to east.
upvoted 2 times
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syu31svc
2 years, 3 months ago
Selected Answer: A
Yes as this "resolve the names of all the internal namespaces" since both parent and child domains are included
upvoted 1 times
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empee1977
2 years, 4 months ago
Selected Answer: A
The solution of creating conditional forwarders on Server2 and Server3 for contoso.local and east.contoso.local or west.contoso.local, respectively, does meet the goal. Since all the DNS servers are already using root hints, they will be able to resolve internet host names. By creating the conditional forwarders, the DNS servers will be able to resolve the names of all the internal namespaces as well. By configuring conditional forwarders, the DNS servers can forward DNS queries for specific domains to specified DNS servers, improving the efficiency and speed of name resolution for those domains.
upvoted 3 times
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Lu5ck
2 years, 6 months ago
No. How s2 know the IP o S1 and S3 etc.
upvoted 2 times
Lu5ck
2 years, 6 months ago
Nvm. After pondering on the "english", it didn't explicitly say what kind of input they gonna add into the forward but they are entering the such inputs for these two zones. So the answer is Yes.
upvoted 1 times
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johosofat
2 years, 7 months ago
Selected Answer: A
yes this works-
upvoted 1 times
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Bruk
2 years, 8 months ago
Selected Answer: A
Its A because of the roothints
upvoted 1 times
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rimvydukas
2 years, 9 months ago
Selected Answer: A
Hey, admins, answer is yes for sure. Please fix this or clarify, why you marked correct answer as B.
upvoted 1 times
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nefaxto
3 years ago
No, i think because Root Hits is in use, so the forwarding fot contoso.com is not necessary https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/plan/reviewing-dns-concepts
upvoted 2 times
xrisimix
2 years, 9 months ago
Root Hits answers queries regarding registered domains, not local as contoso.com. Answer is Yes
upvoted 1 times
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Mular5
3 years ago
It will work, cause all use root hints for the internet.
upvoted 1 times
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Mular5
3 years ago
No, it won't satisfy the need to resolve names from the internet.
upvoted 2 times
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Community vote distribution
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C (25%)
B (20%)
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