AZ-800 / Q3 / T4

rajeevsujatausa

Highly Voted 2 years, 5 months ago 

IT WILL WORK

upvoted 23 times 

AnonymousJhb

2 years, 4 months ago 

The best use of root hints is on internal DNS servers at lower levels of the namespace. Root hints should not be used for querying DNS servers outside your organization; DNS forwarders are better equipped for performing this function. All 3 servers use root hints so internal search is sorted. Internet based hosts require forwarding, so I would say Yes = A

upvoted 5 times 

AnonymousJhb

2 years, 4 months ago 

rubbish. Root hints are used to find external DNS internet servers when they are not found in the local cache. Root hints are a list of the DNS servers on the Internet that your DNS servers can use to resolve queries for names that it does not know. https://docs.microsoft.com/en-us/troubleshoot/windows-server/networking/root-hints-reappear-after-removed.

upvoted 10 times 

7ROMAPE8

Highly Voted 2 years, 5 months ago 

I think, It may be YES

upvoted 10 times 

Ksk08

Most Recent 4 weeks ago 

Answer is yes

upvoted 1 times 

Krayzr

4 months, 1 week ago 

Selected Answer: A

Yes, By configuring Server2 to forward DNS requests to 10.0.1.10, all DNS servers can resolve names of all internal namespaces and internet hosts. This is because Server1, which has the IP address 10.0.1.10, is located in Toronto and is responsible for the contoso.local zone. This zone contains zone delegations for east.contoso.local and west.contoso.local. Therefore, forwarding DNS requests to Server1 (10.0.1.10) ensures that all DNS servers can resolve names for all these internal namespaces. Additionally, since all DNS servers use root hints, they can also resolve internet host names. So, the answer is Yes.

upvoted 2 times 

SIAMIANJI

6 months, 3 weeks ago 

Selected Answer: B

Root hints are indeed used by DNS servers to locate the DNS root servers. After a DNS server locates the DNS root server, it can resolve any query for that namespace. However, root hints alone do not address the specific requirement of resolving internal namespaces (such as east.contoso.local and west.contoso.local). To ensure that all the DNS servers can resolve the names of all the internal namespaces and internet hosts, you should consider the following: Conditional Forwarding: Configure conditional forwarding on your DNS servers. Set up conditional forwarders for the internal namespaces (e.g., east.contoso.local and west.contoso.local). Specify the IP addresses of DNS servers authoritative for those internal namespaces. This approach ensures that queries for internal namespaces are forwarded directly to the authoritative DNS servers.

upvoted 1 times 

Kuikz

7 months, 2 weeks ago 

Selected Answer: A

https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/plan/reviewing-dns-concepts

upvoted 1 times 

TRN80

9 months, 3 weeks ago 

Selected Answer: A

Tested this scenario in virtual environment, it works

upvoted 1 times 

AliRi

1 year, 7 months ago 

Topic 4 Question #9 give correct solution

upvoted 2 times 

MiMojo

1 year, 7 months ago 

It will work but the answer is no. The question asks that all DNS servers can resolve all queries. 2 & 3 are not resolving, they are forwarding and 1 is resolving. So NO, it doesn't meet the requirements.

upvoted 5 times 

JackBauer

1 year, 1 month ago 

no. the question asks "does this meet the goal". Yes. All internal and Internet DNS queries will resolve correctly.

upvoted 2 times 

rknichols01

10 months, 2 weeks ago 

technically they do resolve the address. The local DNS server queries the external DNS source for the client, then gets that information back and adds it to the local DNS server cache. then sends that information to the client.

upvoted 1 times 

syu31svc

1 year, 8 months ago 

Selected Answer: A

"All the DNS servers use root hints" "resolve the names of all the internal namespaces" This method works so answer is Yes

upvoted 3 times 

empee1977

1 year, 9 months ago 

Selected Answer: A

yes, this solution meets the goal of ensuring that all the DNS servers can resolve the names of all the internal namespaces and internet hosts. By configuring Server2 and Server3 to forward DNS requests to Server1, which is the primary DNS server for the contoso.local zone, all DNS servers will have access to the required information to resolve names.

upvoted 2 times 

critesa

1 year, 11 months ago 

Selected Answer: B

From the contoso.local DNS zone you cannot resolve names in either East or West, so this is wrong. I built this in a W2019 lab to confirm this.

upvoted 4 times 

Lu5ck

1 year, 11 months ago 

Selected Answer: A

Yes. All server has root hints aka DNS that know internet. Server1 has delegation to both zones so Server1 knows everything.

upvoted 2 times 

johosofat

2 years ago 

Dang it - of course the answer to this question is IT depends- so this question does not tell us if the zone delgation is domain or forest- if forest delegation then yes! if domain delegation then no - if its a domain delegation then my answer farther down would be required to make it true - https://social.technet.microsoft.com/Forums/lync/en-US/4db4c311-7206-400c-8c12-85ad4bd3e166/dns-resolution-between-child-and-parent-domain?forum=winserverDS

upvoted 2 times 

kijken

2 years ago 

It is possible but it is a configuration of someone that does not understand DNS. So I guess the answer is yes

upvoted 1 times 

joehoesofat

2 years ago 

This is a rough question- the Answer is no as written- this statement You configure Server2 and Server3 to forward DNS requests to 10.0.1.10. is missing what is assumed to be conditional forwarders. Server 2 needs a forwarder to west and server 3 needs a conditional forwarder to east. without these- "all internal namespaces will be addressed" You need a forwarders and conditional forwarders to make this work - this would be a full q and q 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?

upvoted 3 times 

Bruk

2 years, 1 month ago 

Selected Answer: A

I think its A https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/plan/reviewing-dns-concepts The DNS server forwards the query to another DNS server, known as a forwarder. Because the forwarder is not authoritative for the name and does not have the answer in its cache, it uses root hints to find the IP address of the DNS root server.

upvoted 3 times 

ProfileX

2 years, 2 months ago 

Selected Answer: A

This may not be the most efficient configuration, but it will meet the vague requirements in the question. Adding conditional forwarders is common and would be a better configuration, but technically the answer is A Yes. https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/plan/reviewing-dns-concepts

upvoted 2 times 

rimvydukas

2 years, 2 months ago 

Selected Answer: A

Correct answer is A. Just checked. When forwarders are removed from the DNS in the child domain, this DNS is not able so resolve records in the root domain. And more. When child domain is installed, forwarders are configured automatically :)

upvoted 4 times 

jaguero

2 years, 2 months ago 

Question 7 Exam 4: Create a development environment as proposed by Microsoft, a root domain crvinfo.local and 2 child domains (peru.crvinfo.local and brasil.crvinfo.local). By default the root domain (crvinfo.local) created 2 delegated zones for Peru and Brazil, with these delegated zones you can resolve child domain names. In the child domain, forwards are automatically configured to the IP address of the root domain. Both child domains (peru.crvinfo.local and brasil.crvinfo.local) can resolve internal organization names, root domain names, child domain names, and internet names because the root domain has root hints configured. Solution: You configure Server2 and Server3 to forward DNS requests to 10.0.1.10. Does this meet the goal?: Option A "YES"

upvoted 2 times 

Contactfornitish

2 years, 3 months ago 

Selected Answer: B

Delegation means any request send of anything related to delegated zone get redirected to DNS server owning that namespace. So with delegated zones, contoso.local can easily resolve rest two, while rest two if forwarding to server1 then it would mean all internal names belonging to 3 zones can be resolved. This still LEAVES out INTERNET HOSTS so no, it WILL NOT work

upvoted 4 times 

Contactfornitish

2 years, 3 months ago 

Silly me, please ignore the last comment. I missed out root hints, yes it would work in that case

upvoted 3 times 

SJHCI

2 years, 3 months ago 

Selected Answer: A

This would actually work. Server1 contains delegations for the two downlevel zones, thus is able to answer queries about them by asking Server2 and Server3. Server2 and Server3 will answer queries about the zones they own and forward everything else to Server1, which can answer queries about Internet names and about the two downlevel zones (via delegation).

upvoted 2 times 

51007

2 years, 5 months ago 

Selected Answer: B

4-3 I will say NO because my understanding is that 'forwarding' refers to sending your requests to an outside source such as google. Also, confusingly, the 'forwarder' is actually who you are 'forwarding to'.. so google would be your 'forwarder'. You wouldn't "forward" something to an internal resource so my answer here is no. Please correct me if needed.

upvoted 3 times 

bastien95

2 years, 4 months ago 

You are indeed wrong. You can forward anywhere you want. You could allow a single server to do external queries and block DNS everywhere else, and have all your internal DNS servers point to the one that has external access for example. A forwarder is simply "Where do I send requests that I can't resolve". Can be anywhere.

upvoted 1 times