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Exam AZ-700 topic 2 question 63 discussion

Actual exam question from Microsoft's AZ-700
Question #: 63
Topic #: 2
[All AZ-700 Questions]

DRAG DROP
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You have two on-premises datacenters.

You have an Azure subscription that contains four virtual networks named VNet1, VNet2, VNet3, and VNet4.

You create an Azure virtual WAN named VWAN1. VWAN1 contains a single virtual hub that is connected to both on-premises datacenters and all the virtual networks in a full mesh topology.

You create a route table named RT1.

You need to configure VWAN1 to meet the following requirements:

• Connectivity between VNet1 and VNet2 and both on-premises datacenters must be allowed.
• Connectivity between VNet3 and VNet4 and both on-premises datacenters must be allowed.
• VNet1 and VNet2 must be isolated from VNet3 and VNet4.

How should you configure routing for VNet1 and VNet2 and for both on-premises datacenters? To answer, drag the appropriate route tables and route table propagation to the correct requirements. Each route table and route table propagation may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.

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Suggested Answer:
by Acaer at Sept. 8, 2023, 7:47 p.m.

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Acaer
Highly Voted 1 year, 2 months ago
Looks correct We can see such example here: https://learn.microsoft.com/en-us/azure/virtual-wan/scenario-isolate-vnets VNet1 + VNet2 Associated route table: RT1 Propagating to route tables: Default On-premises Associated route table: Default Propagating to route tables: RT1 and Default I was overthinking this a bit with this design https://learn.microsoft.com/en-us/azure/virtual-wan/scenario-isolate-vnets-custom but i guess VNet3 + 4 could be associated to route table Default since we isolate VNet1 + 2 from 3 + 4
upvoted 11 times
Webesciaki
10 months, 1 week ago
IMHO its wrong VNET1 and VNET2 supposed to talk to each other that means it is not met with given answer.
upvoted 1 times
Webesciaki
10 months, 1 week ago
I'd go for: VNET1 + VNET2: associated route table: RT1 propagated route table: RT1 + default on-Prem associated route table Default propagated to RT1 none of the answer covers VNET3 and VNET4 though
upvoted 2 times
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ironbornson
1 year, 1 month ago
I guess VNET3 and VENT 4 will be in RT1 also, and because we do not propagate RT1 in RT1 no VNETs will be aware of each other. Kind of missleading question if you ask me. From your link: "I think the question is a bit missleading. When they specify "Connection between Vnet1 and Vnet2 and on-prem" they can make you understand they want vnet1 and vnet2 to be reachable each other but with the given responses that would be impossible as per your link says: "Notice that since only branches propagate to the route table RT_VNET, those will be the only prefixes that VNets will learn, and not those of other VNets.""
upvoted 1 times
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y0eri
Highly Voted 9 months, 3 weeks ago
Because you need connectivity between VNet1 and VNet2, their routes need to be propagated to their associated route table. VNet3 and VNet4 can be associated to route table Default and only propagate their routes to route table Default. This way there is full connectivity between all VNETs and the on-prem data centers, between VNet1 and VNet2, between VNet3 and VNet4, but not between VNet1/2 and VNet3/4. VNet1 and VNet2: - Associated route table: RT1 - Propagating to route tables: RT1 and Default On-premises datacenters: - Associated route table: Default - Propagating to route tables: RT1 and Default VNet3 and VNet4: - Associated route table: Default - Propagating to route tables: Default
upvoted 5 times
CiscoExam
9 months, 2 weeks ago
you are propagating from VNET1 and VNET2 to Default. Then you're associating VNET3 & 4 to Default. This will make all 4 VNETs talk to each other. So, this couldn't be correct. We need another routing table RT2 to be able to execute this scenario fully. Or else, it's not possible.
upvoted 1 times
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NSF2
Most Recent 10 months ago
The similar scenario described in the link below, along with testing in the LAB, I can say that the answer is correct. https://learn.microsoft.com/en-us/azure/virtual-wan/scenario-isolate-vnets
upvoted 4 times
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