TimedTest2, 3rd question on Implement and Manage Virtual Networking

[rolandb]

Hi

Isn’t it correct to say:

TDVnet3 packets can be routed to: TDVnet1 and TDVnet3 only

(rather than TDVnet1 only)?

In my understanding, a VNet can route packets to itself.

Thanks in advance for your thoughts.

Regards

Rolandb

• This discussion was modified 5 months, 2 weeks ago by  rolandb.

[Nikee-TutorialsDojo]

Hi Roland, thanks for your message! 👋

Could you please share a snippet of the whole question, so we can check the context and confirm the expected behavior? That will help us review it more accurately.

Cheers,

Nikee @ Tutorials Dojo

[rolandb]

Hi Nikee

Many thanks for your helpful reply. Here is a the question (incl. screenshot):

3. QUESTION

Your company has an Azure subscription that contains virtual networks named TDVnet1, TDVnet2, and TDVnet3.

You peer the virtual networks as shown in the following exhibit.

You need to identify if the packets can be routed between virtual networks.

What should you identify?

Select the correct answer from the drop-down list of options. Each correct selection is worth one point.

TDVnet1 packets can be routed to: TDVnet2 and TDVnet3

Choices: TDVnet2 only, TDVnet3 only, TDVnet2 and TDVnet3

TDVnet3 packets can be routed to: TDVnet1 only

Choices: TDVnet1 only, TDVnet2 only, TDVnet1 and TDVnet3 only

Thanks again, Nikee!

Regards

Roland

[Nikee-TutorialsDojo]

Hi Roland,

You are right that in Azure, any VNet can always route traffic within itself. For example, resources inside TDVnet3 can naturally communicate with each other without additional configuration. That’s the default behavior and doesn’t depend on peering.

However, the key to this exam scenario lies in the peering configuration shown:

• TDVnet1 ↔ TDVnet2: directly peered.

• TDVnet1 ↔ TDVnet3: directly peered.

• TDVnet2 ↔ TDVnet3: not peered.

• Gateway transit is disabled, so TDVnet1 cannot act as a router to forward traffic between TDVnet2 and TDVnet3.

From this setup, here’s what it means for routing:

• TDVnet1 has direct connections to both TDVnet2 and TDVnet3, so it can send packets to either.

• TDVnet3 has a direct connection only to TDVnet1, so packets from TDVnet3 can only go to TDVnet1.

• TDVnet3 cannot reach TDVnet2, because peering in Azure is non-transitive — traffic can’t flow through TDVnet1 as a “bridge.”

So, while technically TDVnet3 can route traffic to itself, the exam question is focused on cross-VNet routing, where self-routing is assumed and not listed in the answer choices.

That’s why the correct answer for the question is:

• TDVnet1 packets can be routed to: TDVnet2 and TDVnet3

• TDVnet3 packets can be routed to: TDVnet1 only

Hope this clears up any confusion you have. If you need further assistance, please don’t hesitate to contact us.

Best regards,

Nikee @ Tutorials Dojo

[rolandb]

Hi Nikee

Many thanks for your explanation! I see what you mean about the focus on cross-Vnet routing.

Best regards

Roland

[Nikee-TutorialsDojo]

We’re always happy to help, Roland!

Cheers,

Nikee