Microsoft Azure Architect Design (legacy) — Question 17
You have 100 Standard_F2s_v2 Azure virtual machines. Each virtual machine has two network adapters.
You need to increase the network performance of the workloads running on the virtual machines. The solution must meet the following requirements:
✑ The CPU-to-memory ratio must remain the same.
✑ The solution must minimize costs.
What should you do?
Answer options
- A. Configure NIC teaming
- B. Enable RDMA over InfiniBand
- C. Enable SR-IOV
- D. Install an additional network adapter
Correct answer: C
Explanation
Enabling SR-IOV (Single Root I/O Virtualization) allows direct access to the network adapter, significantly improving network performance while maintaining the same CPU-to-memory ratio. The other options, while potentially beneficial, either do not guarantee the same CPU-to-memory ratio (like adding another network adapter) or may incur higher costs (like activating RDMA over InfiniBand). NIC teaming can improve redundancy but does not directly enhance performance in the way SR-IOV does.