AZ-800 AZ-800 - Microsoft Azure Networking Solutions Azure DNS and Traffic Management Questions and Answers 2 — Questions and Answers
Question 1: What record type should you create in Azure DNS to delegate a subdomain zone to another set of name servers?
- A
- NS (Correct answer)
- SOA
- PTR
Correct answer: NS
An NS (Name Server) record delegates authority for a subdomain to the specified name servers.
Question 2: Which feature automatically registers the DNS names of VMs connected to a VNet into a private DNS zone?
- Manual record creation
- Auto-registration (Correct answer)
- DNS forwarding
- DDNS update
Correct answer: Auto-registration
Enabling auto-registration on a private DNS zone link causes Azure to automatically add and remove DNS records as VMs join or leave the VNet.
Question 3: You configure Traffic Manager with a Primary and a Secondary endpoint. Traffic always goes to the Primary unless it fails. Which routing method is this?
- Weighted
- Performance
- Geographic
- Priority (Correct answer)
Correct answer: Priority
Priority routing sends all traffic to the highest-priority (lowest number) healthy endpoint and fails over to lower-priority ones.
Question 4: What is the minimum TTL value allowed for records in Azure Public DNS zones?
- 0 seconds
- 1 second (Correct answer)
- 60 seconds
- 300 seconds
Correct answer: 1 second
Azure DNS allows a minimum TTL of 1 second for records in public DNS zones.
Question 5: Which Traffic Manager endpoint type is used to route traffic to a service hosted outside of Azure?
- Azure endpoint
- Nested endpoint
- External endpoint (Correct answer)
- Regional endpoint
Correct answer: External endpoint
External endpoints represent services hosted outside Azure, such as on-premises or third-party cloud services.
Question 6: How does Azure DNS handle CNAME records at the zone apex (root domain)?
- CNAME records are allowed at the apex
- Azure alias records must be used instead of CNAME at the apex (Correct answer)
- The SOA record replaces CNAME at the apex
- You must use an A record and update it manually
Correct answer: Azure alias records must be used instead of CNAME at the apex
DNS standards forbid CNAME records at the zone apex, so Azure provides alias records as a compliant alternative that can point to Azure resources.
AZ-800 AZ-800 - Microsoft Azure Networking Solutions Azure DNS and Traffic Management Questions and Answers 2
What record type should you create in Azure DNS to delegate a subdomain zone to another set of name servers?