An Azure subscription contains a virtual network named vnet-manufacturing that has an addr… — Microsoft Azure Administrator (AZ-104)

An Azure subscription contains a virtual network named $vnet-manufacturing$ that has an address space of $10.80.0.0/21$ . You are configuring the subnets for this virtual network to support hybrid connectivity and a new application workload. The configuration must meet the following requirements:
- Create a subnet named $GatewaySubnet$ to support a VPN gateway.
- Create a subnet named $snet-app$ to host 28 virtual machines.
- Minimize the address space allocated to each subnet.

Which two subnets should you create to meet the requirements? Select two.

$GatewaySubnet$ with the address range $10.80.0.0/29$ Cevap
B
$GatewaySubnet$ with the address range $10.80.0.0/30$
$snet-app$ with the address range $10.80.1.0/26$ Cevap
D
$snet-app$ with the address range $10.80.1.0/27$
E
$snet-app$ with the address range $10.80.1.0/28$

Cevap

The correct subnets to create are GatewaySubnet with the address range 10.80.0.0/29 and snet-app with the address range 10.80.1.0/26.

The GatewaySubnet must be at least /29 to support Azure VPN Gateway. A /29 subnet is the smallest valid subnet size that meets this requirement. For the snet-app subnet, hosting 28 virtual machines requires a total of 33 IP addresses (

28 + 5 = 33

) due to the 5 IP addresses reserved by Azure in each subnet. A /27 subnet provides 32 addresses (27 usable), which is not enough. A /26 subnet provides 64 addresses (59 usable), which is the smallest subnet size that can support the workload.

Adım Adım Çözüm

Determine the minimum size of the GatewaySubnet.

The GatewaySubnet must be configured with a prefix length of /29 or larger.

Azure VPN Gateway requires a dedicated subnet named GatewaySubnet, and Azure mandates a minimum size of /29 for this subnet. Therefore, a /29 subnet represents the smallest allocation.

Calculate the minimum subnet size for snet-app to host 28 virtual machines.

A subnet with a /26 prefix length is required.

Azure reserves 5 IP addresses in every subnet (the first four and the last one). To host 28 virtual machines, the subnet must have a total capacity of at least 33 IP addresses (

28 + 5 = 33

). A /27 subnet provides only 32 IP addresses (27 usable), whereas a /26 subnet provides 64 IP addresses (59 usable).

Anahtar Kavram

Azure subnet sizing and IP address reservation rules, including the minimum size requirement for a GatewaySubnet and the 5 reserved IP addresses per subnet.

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Cevap

Adım Adım Çözüm

Anahtar Kavram

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