An administrator is configuring an Azure Virtual Machine named VM-App1. The virtual machine has a single network interface named nic-app1. The primary IP configuration (ipconfig1) of nic-app1 has a private IP address and is associated with a Standard SKU public IP address named PIP1. The administrator needs to add a secondary IP configuration (ipconfig2) to nic-app1. The secondary configuration requires its own public IP address named PIP2. Which configuration must be selected for PIP2?
- Standard SKU and Static allocationAnswer
- BStandard SKU and Dynamic allocation
- CBasic SKU and Static allocation
- DBasic SKU and Dynamic allocation
Answer
Standard SKU and Static allocation
The correct configuration is Standard SKU and Static allocation. Azure requires all public IP addresses associated with a single network interface to use the same SKU. Since the primary public IP address (PIP1) uses the Standard SKU, the secondary public IP address (PIP2) must also use the Standard SKU. Furthermore, Standard SKU public IP addresses only support Static allocation, whereas Basic SKU public IP addresses support both Static and Dynamic allocation.
Step-by-Step Solution
Key Concept
SKU alignment and allocation rules for multiple Public IP addresses on a single network interface