AZ-800 Azure Route Tables and User-Defined Routes 3

Question 1

To allow an NVA to forward traffic destined for other IP addresses, what must be enabled on its network interface?

Accepted Answer

IP forwarding

Answer

Accelerated networking

Answer

Service endpoints

Answer

Application security groups

Question 2

Which Azure CLI command displays the effective routes for a network interface named 'myNIC' in resource group 'myRG'?

Accepted Answer

az network nic show-effective-route-table --name myNIC --resource-group myRG

Answer

az network route-table list --name myNIC --resource-group myRG

Answer

az network nic effective-routes --name myNIC --resource-group myRG

Answer

az network vnet list-routes --name myNIC --resource-group myRG

Question 3

Can Azure system default routes (such as the local VNet route) be directly deleted?

Accepted Answer

No, system routes cannot be deleted, only overridden by UDRs with the same or more specific prefix

Answer

Yes, any route including system routes can be deleted from the portal

Answer

Yes, but only via Azure CLI, not through the portal

Answer

No, system routes can be modified in-place but not deleted

Question 4

At what level is an Azure route table applied?

Accepted Answer

At the subnet level, requiring explicit association with each subnet

Answer

Globally, across all subscriptions in a tenant

Answer

At the VNet level, automatically applying to all subnets

Answer

At the region level, applying to all VNets in that region

Question 5

Which of the following correctly lists the three RFC 1918 private address ranges used in Azure VNet planning?

Accepted Answer

10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16

Answer

10.0.0.0/8, 172.0.0.0/8, 192.0.0.0/8

Answer

172.16.0.0/12, 192.168.0.0/16, 198.18.0.0/15

Answer

10.0.0.0/24, 172.16.0.0/24, 192.168.0.0/24

Question 6

What is a key consideration when associating a route table with the GatewaySubnet?

Accepted Answer

It controls routing for traffic entering the VNet from VPN or ExpressRoute gateways

Answer

It enables automatic route distribution to all other subnets

Answer

It must reference the same address space as the gateway

Answer

It automatically configures BGP peering with on-premises routers

Question 7

To avoid routing loops when using UDRs to redirect traffic through an NVA, what is the critical rule for the NVA's own subnet?

Accepted Answer

The NVA subnet's UDR must NOT redirect traffic back through the NVA itself

Answer

The NVA subnet must have a UDR that sends all its traffic back through itself for inspection

Answer

The NVA subnet must be associated with two separate route tables

Answer

The NVA subnet should have BGP propagation disabled to prevent loop routes