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description: "Knowledge check for intro to Azure DNS."
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ms.date: 01/31/2024
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author: Orin-Thomas
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ms.author: orthomas
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ms.topic: unit
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ms.custom: team=cloud_advocates
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ms.contributors: orthomas-12162021
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durationInMinutes: 5
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content: |
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quiz:
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questions:
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- content: "Rather than use the Azure provided names, you want to use a custom domain for the names of virtual machines on three virtual networks in your subscription. The fully qualified domain names (FQDN) associated with these virtual machines shouldn't be publicly resolvable by hosts using third party DNS serves on the internet. Which of the following solutions should you implement?"
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choices:
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- content: "Azure DNS alias record."
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isCorrect: false
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explanation: "Incorrect. Alias records, also named CNAME records, allow you to point one FQDN at another FQDN. It doesn't provide selectively resolvable automatically assigned FQDNs to virtual machine hosts on select virtual networks."
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- content: "Reverse DNS records."
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isCorrect: false
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explanation: "Incorrect. Reverse DNS allows you to determine the FQDN associated with a specific IP address. It doesn't provide selectively resolvable automatically assigned FQDNs to virtual machine hosts on select virtual networks."
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- content: "Azure DNS Private zone."
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isCorrect: true
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explanation: "Correct. Azure DNS private zones allow you to configure automatically assigned selectively resolvable FQDNs to virtual machines on select Azure virtual networks."
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- content: "In which of the following scenarios would you choose Azure DNS to host your organizations internet resolvable DNS zones?"
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choices:
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- content: "You need to secure DNS records using DNSSEC."
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isCorrect: false
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explanation: "Incorrect. Azure DNS doesn't support DNSSEC."
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- content: "You need to manage and update MX, TXT and CNAME IPv6 records for a DNS zone."
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isCorrect: true
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explanation: "Correct. Azure DNS supports hosting MX, TXT and CNAME records."
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- content: "You need to provide an Active Directory Integrated DNS zone for IaaS VM hosts."
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isCorrect: false
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explanation: "Incorrect. Azure DNS doesn't support Active Directory Integrated DNS zones."
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- content: "Which of the following tools can you use to manage Azure DNS zone records?"
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choices:
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- content: "Azure CLI."
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isCorrect: true
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explanation: "Correct. You can manage Azure DNS zone records using Azure CLI"
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- content: "Windows Admin Center."
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isCorrect: false
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explanation: "Incorrect. You can't manage Azure DNS records using Windows Admin Center. You can use Windows Admin Center to manage Windows Server DNS server records"
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- content: "Dnscmd.exe utility."
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isCorrect: false
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explanation: "Incorrect. You can't use dnscmd.exe to manage Azure DNS records. You can use dnscmd.exe to manage Windows Server DNS server records"
description: "Knowledge check for intro to Azure DNS."
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ms.date: 05/15/2025
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author: Orin-Thomas
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ms.author: orthomas
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ms.topic: unit
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ms.custom: team=cloud_advocates
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ms.contributors: orthomas-12162021
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durationInMinutes: 5
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content: |
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quiz:
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questions:
17
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- content: "Rather than use the Azure provided names, you want to use a custom domain for the names of virtual machines on three virtual networks in your subscription. The fully qualified domain names (FQDN) associated with these virtual machines shouldn't be publicly resolvable by hosts using third party DNS serves on the internet. Which of the following solutions should you implement?"
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choices:
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- content: "Azure DNS alias record."
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isCorrect: false
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explanation: "Incorrect. Alias records, also named CNAME records, allow you to point one FQDN at another FQDN. It doesn't provide selectively resolvable automatically assigned FQDNs to virtual machine hosts on select virtual networks."
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- content: "Reverse DNS records."
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isCorrect: false
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explanation: "Incorrect. Reverse DNS allows you to determine the FQDN associated with a specific IP address. It doesn't provide selectively resolvable automatically assigned FQDNs to virtual machine hosts on select virtual networks."
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- content: "Azure DNS Private zone."
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isCorrect: true
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explanation: "Correct. Azure DNS private zones allow you to configure automatically assigned selectively resolvable FQDNs to virtual machines on select Azure virtual networks."
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- content: "In which of the following scenarios would you choose Azure DNS to host your organization's internet resolvable DNS zones?"
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choices:
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- content: "You need to secure DNS records using DNSSEC."
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isCorrect: false
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explanation: "Incorrect. Azure DNS doesn't support DNSSEC."
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- content: "You need to manage and update MX, TXT, and CNAME IPv6 records for a DNS zone."
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isCorrect: true
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explanation: "Correct. Azure DNS supports hosting MX, TXT, and CNAME records."
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- content: "You need to provide an Active Directory Integrated DNS zone for IaaS VM hosts."
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isCorrect: false
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explanation: "Incorrect. Azure DNS doesn't support Active Directory Integrated DNS zones."
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- content: "Which of the following tools can you use to manage Azure DNS zone records?"
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choices:
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- content: "Azure CLI."
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isCorrect: true
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explanation: "Correct. You can manage Azure DNS zone records using Azure CLI."
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- content: "Windows Admin Center."
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isCorrect: false
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explanation: "Incorrect. You can't manage Azure DNS records using Windows Admin Center. You can use Windows Admin Center to manage Windows Server DNS server records."
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- content: "Dnscmd.exe utility."
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isCorrect: false
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explanation: "Incorrect. You can't use dnscmd.exe to manage Azure DNS records. You can use dnscmd.exe to manage Windows Server DNS server records."
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Azure DNS allows your organization to host and manage public and private DNS records. Azure DNS allows you to fully integrate your organization's public and private DNS namespaces with applications, services, and hosts that you deploy in Azure.
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You're responsible for networking at Tailwind Traders, a new and expanding online commerce store. At the moment, Tailwind Traders currently hosts its public DNS zone, tailwindtraders.com, on DNS servers managed by the company's domain registrar. The company has owned the DNS zone since before you configured the organization's Microsoft 365 subscription. You use the DNS registrar's tools to manage records associated with this public DNS zone. As the company is increasing the deployment of applications and services in Azure, you would like to simplify the process of managing the public DNS records associated with those Azure applications. You would like to avoid constantly shifting between Azure and the registrar's tools each time a new web application is deployed or modified.
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You're responsible for networking at Tailwind Traders, a new and expanding online commerce store. Tailwind Traders currently hosts its public DNS zone, tailwindtraders.com, on DNS servers managed by the company's domain registrar. The company has owned the DNS zone since before you configured the organization's Microsoft 365 subscription. You use the DNS registrar's tools to manage records associated with this public DNS zone. As the company is increasing the deployment of applications and services in Azure, you'd like to simplify the process of managing the public DNS records associated with those Azure applications. You'd like to avoid constantly shifting between Azure and the registrar's tools each time a new web application is deployed or modified.
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This module explains what Azure DNS does, how it works, and when you should choose to use Azure DNS as a solution to meet your organization's needs.
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## Learning objectives
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In this module, you will:
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In this module, you'll:
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- Learn what Azure DNS is and the functionality it provides.
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- Determine whether Azure DNS meets the needs of your organization.
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- Understand the difference between Azure DNS public and private zones.
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- Understand the differences between Azure DNS public and private zones.
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Since Azure DNS is hosted on Microsoft's Azure infrastructure, the service is more resilient to network failures than DNS services hosted on individual servers managed by your organization or third parties. If a DNS service hosting important DNS zone data such as the records for your organization's website or email server becomes unavailable, those services will likely not function correctly. For example, a DNS server outage not only can stop people from being able to navigate to your organization's website, but it can also stop people from being able to email others in your organization!
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You can fully integrate Azure DNS with Azure resources. Azure DNS provides functionality allowing you to automatically update records based on when you deploy or modify resources in Azure. For example, if you weren't using Azure DNS and you choose to deploy a web application that you want to associate with the custom FQDN app.tailwindtraders.com, you'll need to create or update the host record for app.tailwindtraders.com in the tailwindtraders.com DNS zone to point to the web app's IP address on a DNS server that you manage separately. With Azure DNS, you can automate the process of configuring and updating DNS records. If you move the web app to a new location, the Azure DNS record associated with that web app will automatically be updated.
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You can fully integrate Azure DNS with Azure resources. Azure DNS provides functionality allowing you to automatically update records based on when you deploy or modify resources in Azure. For example, say you aren't using Azure DNS and you choose to deploy a web application that you want to associate with the custom FQDN app.tailwindtraders.com. You'll need to create or update the host record for app.tailwindtraders.com in the tailwindtraders.com DNS zone to point to the web app's IP address on a DNS server that you manage separately. With Azure DNS, you can automate the process of configuring and updating DNS records. If you move the web app to a new location, the Azure DNS record associated with that web app will automatically be updated.
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Azure DNS supports all common DNS record types including A, AAAA, CNAME, MX, PTR, SOA, SRV, and TXT records. Azure DNS supports records that map to both IPv4 and IPv6 addresses, and Azure DNS servers can be reached by clients using both IPv4 and IPv6 addresses.
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Azure DNS supports all common DNS record types including A, AAAA, CNAME, MX, PTR, SOA, SRV, and TXT records. Azure DNS supports records that map to both IPv4 and IPv6 addresses, and clients using both IPv4 and IPv6 addresses can reach Azure DNS servers.
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