Exam AZ-104 topic 5 question 18 discussion

Actual exam question from Microsoft's AZ-104

Question #: 18
Topic #: 5

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have an Azure subscription that contains the following resources:
✑ A virtual network that has a subnet named Subnet1
✑ Two network security groups (NSGs) named NSG-VM1 and NSG-Subnet1
✑ A virtual machine named VM1 that has the required Windows Server configurations to allow Remote Desktop connections
NSG-Subnet1 has the default inbound security rules only.
NSG-VM1 has the default inbound security rules and the following custom inbound security rule:
✑ Priority: 100
✑ Source: Any
✑ Source port range: *
✑ Destination: *
✑ Destination port range: 3389

Protocol: UDP -

✑ Action: Allow
VM1 has a public IP address and is connected to Subnet1. NSG-VM1 is associated to the network interface of VM1. NSG-Subnet1 is associated to Subnet1.
You need to be able to establish Remote Desktop connections from the internet to VM1.
Solution: You add an inbound security rule to NSG-Subnet1 that allows connections from the internet source to the VirtualNetwork destination for port range 3389 and uses the UDP protocol.
Does this meet the goal?

A. Yes
B. No

Show Suggested Answer

Suggested Answer: B 🗳️

by Hibs2016 at Dec. 6, 2020, 7:10 p.m.

Comments

Submit Cancel

mlantonis

Highly Voted 4 years, 2 months ago

Correct Answer: B - No The default port for RDP is TCP port 3389. Reference: https://docs.microsoft.com/en-us/troubleshoot/azure/virtual-machines/troubleshoot-rdp-connection

upvoted 63 times

...

aMiPL

Highly Voted 4 years, 6 months ago

Such a silly question :). By default it will not work but you can make it work so there isn't really a good answer xD. By default servers accepts on both TCP and UDP. UDP will work as long as client machine(the one you are connecting from) will have registry updated to use UDP by default :> So the answer is "No" in but you can actually make it work if you change settings outside of azure.

upvoted 21 times

...

scar317

Most Recent 8 months, 2 weeks ago

Selected Answer: A

GPT: Why TCP is Essential: Session Establishment: RDP requires a reliable connection to authenticate users and initialize the session. Control Messages: Critical RDP messages, like keyboard and mouse inputs, rely on TCP to ensure delivery. Without TCP, RDP cannot initiate or maintain a session. UDP is a supplementary protocol that enhances the experience once the session is established.

upvoted 1 times

...

3 years ago

I just tested - Crated an Azure VM ( windows Server ) with RDP coonections it showing RDP connection on TCP protocol port 3389. When you try to add an inbound rule and select "RDP" - it will automatically select "TCP" protocol and Destination port range " 3389" connection Answer is B

upvoted 2 times

...