AZ-800 AZ-800 - Microsoft Azure Networking Solutions DNS and Traffic Routing Questions and Answers

Question 1

Which Azure DNS record type is used to map a hostname to an IPv4 address?

Accepted Answer

A record

Answer

AAAA record

Answer

CNAME record

Answer

MX record

Question 2

You need to host a private DNS zone that resolves names for resources inside a virtual network without exposing it publicly. Which Azure service should you use?

Accepted Answer

Azure Private DNS Zones

Answer

Azure Public DNS Zones

Answer

Azure Traffic Manager

Answer

Azure Firewall DNS proxy

Question 3

A CNAME record in Azure DNS cannot be created at the zone apex. What record type must you use instead for apex domain aliasing?

Accepted Answer

Alias (A) record

Answer

PTR record

Answer

NS record

Answer

SOA record

Question 4

Which TTL (Time-to-Live) behavior applies when you lower the TTL of a DNS record just before a planned failover?

Accepted Answer

Clients cache the record for less time, enabling faster propagation of the new value

Answer

Clients cache the record longer to reduce DNS query load

Answer

Clients ignore the TTL and always query the DNS server

Answer

TTL has no effect on failover speed

Question 5

You want VMs in a virtual network to automatically register their DNS names in a private DNS zone. What must you configure?

Accepted Answer

Enable autoregistration when linking the VNet to the private DNS zone

Answer

Deploy a custom DNS server in the VNet

Answer

Create A records manually for every VM

Answer

Enable Azure DNS over HTTPS

Question 6

Which DNS record type would you create in Azure DNS to specify the mail servers responsible for accepting email for a domain?

Accepted Answer

MX record

Answer

TXT record

Answer

SRV record

Answer

AAAA record