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Exam AZ-700 topic 3 question 22 discussion

Actual exam question from Microsoft's AZ-700
Question #: 22
Topic #: 3
[All AZ-700 Questions]

You have a website that uses an FQDN of www.contoso.com. The DNS record for www. contoso.com resolves to an on-premises web server.
You plan to migrate the website to an Azure web app named Web1. The website on Web1 will be published by using an Azure Front Door instance named
ContosoFD1.
You build the website on Web1.
You plan to configure ContosoFD1 to publish the website for testing.
When you attempt to configure a custom domain for www.contoso.com on ContosoFD1, you receive the error message shown in the exhibit. (Click the Exhibit tab.)

You need to test the website and ContosoFD1 without affecting user access to the on-premises web server.
Which record should you create in the contoso.com DNS domain?

  • A. a CNAME record that maps afdverify.www.contoso.com to ContosoFD1.azurefd.net
  • B. a CNAME record that maps www.contoso.com to ContosoFD1.azurefd.net
  • C. a CNAME record that maps afdverify.www.contoso.com to afdverify.ContosoFD1.azurefd.net
  • D. a CNAME record that maps www.contoso.com to Web1.contoso.com
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by HTD at April 20, 2022, 7:40 p.m.

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pinpin06
Highly Voted 1 year, 7 months ago
Selected Answer: C
response C: "You need to test the website and ContosoFD1 without affecting user access to the on-premises web server." afdverify permits to do it without impact.
upvoted 5 times
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Murad01
Most Recent 6 days, 19 hours ago
Appeared on Exam November -2023
upvoted 1 times
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Lazylinux
4 months, 1 week ago
Selected Answer: C
I C is the answer as per link below https://learn.microsoft.com/en-us/azure/frontdoor/front-door-custom-domain
upvoted 1 times
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JennyHuang36
9 months, 3 weeks ago
In exam Feb,2023
upvoted 4 times
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DeepMoon
1 year, 2 months ago
Production site www.contoso.com is mapped to on-prem server. Future production site would map www.contoso.com to ContosoFD1.azurefd.net, which then would point to Azure WebApp named web1. Before you can do this you need to test while current production (on-prem) server and its current DNS mapping untouched. Your test site afdverify.www.contoso.com is mapped to afdverify.contosofd1.azurefd.net which is pointing to Azure WebApp. Now when you send all your DNS traffic to afdverify.www.contoso.com it ends in Azure Web App that is being tested.
upvoted 3 times
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Mike2020
1 year, 4 months ago
Selected Answer: C
Answer is correct. This is to map the custom domain while regsitering to the Azure portal without affecting Web traffic traffic ... With this method, users can access your domain without interruption while the DNS mapping occurs. https://docs.microsoft.com/en-us/azure/frontdoor/front-door-custom-domain#map-the-temporary-afdverify-subdomain%20Community%20vote%20distribution
upvoted 4 times
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whiteherondance
1 year, 7 months ago
Selected Answer: C
"...You need to test the website and ContosoFD1 *without affecting user access to the on-premises web server.*" Answer is C - read the provided document in the answer, it explains why. B would interrupt user access to on-prem server.
upvoted 3 times
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frks
1 year, 7 months ago
Selected Answer: C
Ignore my previous comment. New domain -> create cname directly, existing production domain --> afdverify
upvoted 2 times
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frks
1 year, 7 months ago
Selected Answer: B
afdverify is useless in this scenario
upvoted 1 times
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Ochman
1 year, 7 months ago
The answer is B
upvoted 1 times
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HTD
1 year, 7 months ago
As per microsoft document reference this is a correct answer.
upvoted 1 times
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