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AZ-700ActiveMicrosoft · Associate

Microsoft Certified: Azure Network Engineer Associate Practice Mode

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Question 34

Hot Area / Dropdown

HOTSPOT Your on-premises network uses an IP address range of 10.1.0.0 to 10.1.255.255. You plan to deploy a new Azure virtual network solution that will include the following elements: • A virtual network named VNet1 • A Site-to-Site (S2S) VPN connection between VNet1 and the on-premises network • GatewaySubnet in VNet1, which will be used as a route-based virtual network gateway You need to recommend which subnet masks to assign to VNet1 and GatewaySubnet. The solution must meet the following requirements: • Maximize the number of available IP addresses on VNet1. • Minimize the number of available IP addresses on GatewaySubnet. Which address spaces should you assign to VNet1 and GatewaySubnet? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Step Sequence / Reordering Question

Add and arrange the steps in the correct execution order.

Available Steps (5)

A virtual network named VNet1

A Site-to-Site (S2S) VPN connection between VNet1 and the on-premises network

GatewaySubnet in VNet1, which will be used as a route-based virtual network gateway You need to recommend which subnet masks to assign to VNet1 and GatewaySubnet. The solution must meet the following requirements:

Maximize the number of available IP addresses on VNet1.

Minimize the number of available IP addresses on GatewaySubnet. Which address spaces should you assign to VNet1 and GatewaySubnet? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Your Ordered Steps (0 of 2)

No steps added yet. Click "Add to Sequence" from the available steps above.

Explanation

Hotspot Solution:

Recommended Community Solution:

Although the question doesn't mention which gateway SKU is to be chosen, it DOES say that route-based policy is a requirement, and since the gateway Basic SKU does not support BGP, we can surmise that a non-Basic SKU must be chosen. Ref. this matrix for BGP support by gateway SKU: If we accept this premise, then the documentation further states the only gateway SKU which supports a /29 is the Basic SKU, which we have determined cannot be chosen. All other gateway SKUs have a minimum requirement of /27. Reference this section: Since 10.1/16 and 10.0/16 do not overlap, but 10.0/8 do, the correct selection for the maximum VNet is 10.0/16, and the given answer to the question is in error.

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

2
Maximize the number of available IP addresses on VNet1, so I don't see a problem with 10.0.0.0/24
4
Although the question doesn't mention which gateway SKU is to be chosen, it DOES say that route-based policy is a requirement, and since the gateway Basic SKU does not support BGP, we can surmise that a non-Basic SKU must be chosen. Ref. this matrix for BGP support by gateway SKU: https://learn.microsoft.com/en-us/azure/vpn-gateway/about-gateway-skus#benchmark If we accept this premise, then the documentation further states the *only* gateway SKU which supports a /29 is the Basic SKU, which we have determined cannot be chosen. All other gateway SKUs have a minimum requirement of /27. Reference this section: https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-about-vpn-gateway-settings#gwsub Since 10.1/16 and 10.0/16 do not overlap, but 10.0/8 do, the correct selection for the maximum VNet is 10.0/16, and the given answer to the question is in error.
3
it is obvious that the answer is 10.0.0.0/16. so that it will start from 10.0.0.0 to 10.0.255.255. This is the maximum amount. Why /29 is not the answer is explained very well by the others.

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