Exam AZ-700 topic 2 question 16 discussion

Actual exam question from Microsoft's AZ-700

Question #: 16
Topic #: 2

HOTSPOT -
You have an Azure subscription that contains two virtual networks named Vnet1 and Vnet2.
You register a public DNS zone named fabrikam.com. The zone is configured as shown in the Public DNS Zone exhibit.

You have a private DNS zone named fabrikam.com. The zone is configured as shown in the Private DNS Zone exhibit.

You have a virtual network link configured as shown in the Virtual Network Link exhibit.

For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Hot Area:

Show Suggested Answer

Suggested Answer:

Box 1: Yes -
DNS queries from the internet use the public DNS zone. In the public DNS zone, www.fabrikam.com is a CNAME record that resolves to appservice1.fabrikam.com which resolves to 131.107.1.1.

Box 2: No -
DNS queries from the internet use the public DNS zone. There is no DNS record for server1.fabrikam.com in the public DNS zone.

Box 3: No -
The private DNS zone is linked to VNet1, not VNet2. Therefore, resources in VNet2 cannot query the private DNS zone.

by wsrudmen at May 21, 2022, 10:14 a.m.

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AdityaGupta

Highly Voted 1 year, 10 months ago

The given answers and explanations are correct, please pay attention to following details if you are confused. 1) Public DNS Zones are created for Internet Dns requests. 2) Private DNS Zones are created to cater internal DNS requests. 3) Private DNS Zones must be linked (private links) to VNETs to ensure that resources inside that VNET can make use of private dns zone. In this case it "VNET1_Link" created but no "VNET2_Link" is created.

upvoted 39 times

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wsrudmen

Highly Voted 2 years, 2 months ago

CORRECT!!

upvoted 12 times

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Techbiz

Most Recent 10 months, 1 week ago

Answer and explanation given are correct

upvoted 1 times

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_fvt

1 year, 3 months ago

They say : "You register a Public DNS zone" but not "and you delegate your domain from your registrar to the Public DNS zone" so this step is missing. The wording for the Private DNS is "You have" so this is different here they don"t mention any step. I think the difference is important and the fact that they choose this for the Public DNS is probably because the delegate step is missing. https://learn.microsoft.com/en-us/azure/dns/dns-delegate-domain-azure-dns Shoud be NNN (for the last one VNet2 is not linked to private DNS so cannot resolve names in the private DNS)

upvoted 1 times

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Rajan395

1 year, 6 months ago

absolutely correct.

upvoted 1 times

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DeepMoon

1 year, 6 months ago

Public dns zone doesn't have cname record for www. So how can internet queries for www resolve to 131.107.1.1? Box 1 should be NO. Box 2 should be NO - there is no server1 record on public dns. Box 3 No. vnet 2 is not linked to the private dns zone.

upvoted 3 times