You have two Azure virtual networks named Vnet1 and Vnet2 in an Azure region that has three availability zones.
You deploy 12 virtual machines to each virtual network, deploying four virtual machines per zone. The virtual machines in Vnet1 host an app named App1. The virtual machines in Vnet2 host an app named App2.
You plan to use Azure Virtual Network NAT to implement outbound connectivity for App1 and App2.
You need to identify the minimum number of subnets and Virtual Network NAT instances required to meet the following requirements:
* A failure of two zones must NOT affect the availability of either App1 or App2.
* A failure of two zones must NOT affect the outbound connectivity of either App1 or App2.
What should you identify? To answer, select the appropriate options in the answer are a.
NOTE: Each correct selection is worth one point.

You have an Azure application gateway named AppGW1 that balances requests to a web app named App1.
You need to modify the server variables in the response header of App1.
What should you configure on AppGW1?

You have an Azure subscription that contains the public IPv4 addresses shown in the following table.

You plan to create a load balancer named LB1 that will have the following settings:
* Name: LB1
* Location: West US
* Type: Public
* SKU: Standard
Which public IPv4 addresses can be used by LB1?

Your company has offices in Montreal. Seattle, and Paris. The outbound traffic from each office originates from a specific public IP address.
You create an Azure Front Door instance named FD1 that has Azure Web Application Firewall (WAF) enabled. You configure a WAF policy named Policy! that has a rule named Rule1. Rule1 applies a rate limit of 100 requests for traffic that originates from the office in Montreal.
You need to apply a rate limit of 100 requests for traffic that originates from each office.
What should you do?

You have a website that uses an FQDN of www.contoso.com. The DNS record tor www.contoso.com resolves to an on-premises web server.
You plan to migrate the website to an Azure web app named Web1. The website on Web1 will be published by using an Azure Front Door instance named ContosoFD1.
You build the website on Web1.
You plan to configure ContosoFD1 to publish the website for testing.
When you attempt to configure a custom domain for www.contoso.com on ContosoFD1, you receive the error message shown in the exhibit.

You need to test the website and ContosoFD1 without affecting user access to the on-premises web server.
Which record should you create in the contoso.com DNS domain?