Answer-first summary for fast verification
Answer: 5 NICs, sufficient for each VM with assigned public and private IPs and shared security rules via an NSG.
The correct answer is A. Each virtual machine (VM) in Azure requires at least one network interface (NIC). In this scenario, with five VMs and the requirement that each VM has both a public and private IP address, you only need 5 NICs in total. Each NIC can handle both a private IP address (for internal communication within the virtual network) and a public IP address (for inbound connections from the internet). Therefore, 5 NICs accommodate the VMs' needs efficiently, with Network Security Groups (NSGs) applied to ensure identical inbound and outbound security rules.
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With an Azure AD subscription, deploy five VMs in a virtual network subnet, each with identical inbound and outbound security rules and both public and private IP addresses. Determine the minimum number of network interfaces required.
A
5 NICs, sufficient for each VM with assigned public and private IPs and shared security rules via an NSG.
B
10 NICs, an incorrect assumption of dual NICs per VM for public and private IPs.
C
20 NICs, an overestimation without considering Azure's NIC IP assignment capabilities.
D
40 NICs, a significant overestimation disregarding the efficient use of NICs in Azure.