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Question 49 - AZ-720 discussion

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A company hosts a network virtual appliance (VNA) and Azure Route Server in different virtual networks (VNets). Border Gateway Protocol (BGP) peering is enabled between the NVA loses internet connectivity after it advertises the default route to the route server.

You need to resolve the problem with the NVA.

What should you do?

A.
Configure a user-defined route on the NVA subnet.
Answers
A.
Configure a user-defined route on the NVA subnet.
B.
Move the route server to the same VNet as the NVA.
Answers
B.
Move the route server to the same VNet as the NVA.
C.
Configure a unique autonomous system number (ASN) on the NVA.
Answers
C.
Configure a unique autonomous system number (ASN) on the NVA.
D.
Configure a public IP address on the route server.
Answers
D.
Configure a public IP address on the route server.
Suggested answer: C

Explanation:

According to 2, when using Azure Route Server with network virtual appliances (NVAs), you need to ensure that each NVA has a unique ASN that is different from the route server’s ASN and any other BGP peer’s ASN. Otherwise, there will be routing issues due to BGP loop prevention mechanisms.

You can configure the ASN on the NVA by using its own configuration tools or commands. For more information, see 2.

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asked 02/10/2024
William Takashi Chan
34 questions
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