Configure Active-Active Load Balancer for NVAs
Question
You have an Azure subscription that contains a virtual network named VNet1. VNet1 contains four subnets named Gateway, Perimeter, NVA, and Production.
The NVA subnet contains two network virtual appliances (NVAs) that will perform 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 load balancer 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 part of the solution.
NOTE: Each correct selection is worth one point.
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D. E. F.BCF
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:
E: HA Ports are not available for the basic load balancer.
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-overviewTo implement an Azure load balancer for the two NVAs in the NVA subnet, you need to perform the following three actions:
Deploy a standard load balancer: You should deploy a standard load balancer because it provides support for HA ports and floating IPs, which are required for an active-active configuration that uses automatic failover.
Add two load balancing rules that have HA Ports enabled and Floating IP enabled: You need to add two load balancing rules to load balance traffic to two services on the Production subnet. Each rule should have HA Ports and Floating IP enabled. HA Ports enables you to configure high-availability ports for the NVAs and Floating IP enables the NVAs to keep the same public IP address during a failover event.
Add a frontend IP configuration, a backend pool, and a health probe: You should add a frontend IP configuration to define the IP address that clients will use to connect to the load balancer. Then, add a backend pool to define the target virtual machines that will receive traffic from the load balancer. Finally, add a health probe to monitor the health of the NVAs and ensure that traffic is only sent to healthy instances.
Based on these requirements, the correct answers are A, C, and E. Answer B is incorrect because the basic load balancer does not support HA ports and floating IPs. Answer D is incorrect because it does not enable floating IPs, which are required for an active-active configuration that uses automatic failover. Answer F is incorrect because it suggests creating two backend pools, which is not necessary since there are only two services with different IP addresses.
