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Question 56 - AZ-104 discussion

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You have an azure subscription that contain a virtual named VNet1. VNet1. contains four subnets named Gatesway, perimeter, NVA, and production.

The NVA contain two network virtual appliance (NVAs) that will network traffic inspection between the perimeter subnet and the production subnet.

You need to implement an Azure load balancer for the NVAs. The solution must meet the following requirements:

The NVAs must run in an active-active configuration that uses automatic failover.

The NVA must load balance traffic to two services on the Production subnet. The services have different IP addresses

Which three actions should you perform? Each correct answer presents parts of the solution.

NOTE: Each correct selection is worth one point.

A.
Add two load balancing rules that have HA Ports enabled and Floating IP disabled.
Answers
A.
Add two load balancing rules that have HA Ports enabled and Floating IP disabled.
B.
Deploy a standard load balancer.
Answers
B.
Deploy a standard load balancer.
C.
Add a frontend IP configuration, two backend pools, and a health prob.
Answers
C.
Add a frontend IP configuration, two backend pools, and a health prob.
D.
Add a frontend IP configuration, a backend pool, and a health probe.
Answers
D.
Add a frontend IP configuration, a backend pool, and a health probe.
E.
Add two load balancing rules that have HA Ports and Floating IP enabled.
Answers
E.
Add two load balancing rules that have HA Ports and Floating IP enabled.
F.
Deploy a basic load balancer.
Answers
F.
Deploy a basic load balancer.
Suggested answer: B, C, E

Explanation:

A standard load balancer is required for the HA ports.

-Two backend pools are needed as there are two services with different IP addresses.

-Floating IP rule is used where backend ports are reused.

Incorrect Answers:

F: HA Ports are not available for the basic load balancer.

Reference:

https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-standard-overview

https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-multivip-overview

The following diagram presents a hub-and-spoke virtual network deployment. The spokes forcetunnel their traffic to the hub virtual network and through the NVA, before leaving the trusted space.

The NVAs are behind an internal Standard Load Balancer with an HA ports configuration. All traffic can be processed and forwarded accordingly. When configured as show in the following diagram, an HA Ports load-balancing rule additionally provides flow symmetry for ingress and egress traffic.

Reference :

https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-overview

https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-multivip-overview

https://docs.microsoft.com/en-us/azure/load-balancer/load-balancer-ha-ports-overview#a-singlefloating-ip-direct-server-return-ha-ports-configuration-on-an-internal-standard-load-balancer

asked 26/09/2024
David Miller
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