Question 760
During an architecture review, a platform engineer must use direct public-network UDP where NAT traversal succeeds. Which option meets that requirement most directly?
Explanation
Correct Answer
STUN enables discovery of a usable direct transport across NAT. This addresses the stated need to use direct public-network UDP where NAT traversal succeeds without substituting a different control.
Incorrect Answers
Reverse-connect TCP provides compatibility when UDP cannot be established. This is relevant when the task is to retain remote access in a network where all permitted UDP transports are blocked; it does not directly meet the requirement to use direct public-network UDP where NAT traversal succeeds.
Reverse connect creates its secure initial path over TCP 443. This is relevant when the task is to establish the initial broker-mediated desktop connection without allowing inbound RDP ports to the VM; it does not directly meet the requirement to use direct public-network UDP where NAT traversal succeeds.
Multipath maintains redundant eligible transport paths. This is relevant when the task is to reduce session interruption when one supported network route drops during a session; it does not directly meet the requirement to use direct public-network UDP where NAT traversal succeeds.






Configuring and Operating Microsoft Azure Virtual Desktop (AZ-140) Practice Tests