📖 What is Azure DNS?
Azure DNS is a hosting service for DNS domains that provides name resolution using the global DNS infrastructure. It allows you to manage your domain's DNS records in the Azure portal, ensuring high availability and reliability for your web applications.
"The key advantage here is the use of Azure's global network, which reduces latency and increases the reliability of domain resolution."
📚 Certification: Microsoft Azure Fundamentals (AZ-900)
🔑 What are the Key Concepts of Azure DNS?
- ▸ Global DNS Infrastructure: Leverages Microsoft's global network to provide low-latency name resolution and high availability for users worldwide.
- ▸ Public DNS Zones: Allows you to host your domain's DNS records on Azure, making them accessible to the entire public internet.
- ▸ Private DNS Zones: Enables name resolution within a virtual network without needing a custom DNS solution or exposing records publicly.
- ▸ Standard Record Support: Supports common DNS record types such as A, AAAA, MX, and CNAME, manageable via the Azure portal or CLI.
- ▸ Seamless Integration: Simplifies the process of mapping domain names to Azure resources, ensuring consistent connectivity across the cloud environment.
🎯 How does Azure DNS appear on the AZ-900 Exam?
You may be asked to identify the most appropriate Azure service for hosting a company's public DNS records to ensure high availability and low latency for users globally.
A scenario might describe a requirement to resolve internal hostnames within a private Azure Virtual Network without exposing those records to the public internet; identify Private DNS zones.
Expect questions comparing Azure DNS to traditional DNS hosting, specifically focusing on how leveraging Microsoft's global network improves reliability and reduces the risk of downtime.
❓ Frequently Asked Questions
What is the difference between Public and Private DNS zones in Azure?
Public zones are reachable from the internet for external users, whereas Private zones provide name resolution exclusively within specific Azure Virtual Networks to maintain internal security.
Does Azure DNS provide domain registration services?
No, Azure DNS is a hosting service for DNS records. You must register your domain name with a separate registrar before delegating the DNS management to Azure.