2V0-21.23 Question 67
Single answerAn administrator is managing a vSphere environment with a vSphere Distributed Switch (VDS) and needs to prioritize storage traffic over vMotion traffic during periods of network contention. Network I/O Control (NIOC) has been enabled on the VDS. Which configuration should the administrator use to ensure that storage traffic is prioritized?
- A
Set a higher shares value for the vMotion traffic compared to the storage traffic.
- B
Assign a dedicated physical NIC to the storage traffic and remove it from the vMotion traffic.
- C
Set a higher shares value for the storage traffic compared to the vMotion traffic.
- D
Configure a bandwidth reservation for the storage traffic using NIOC and leave vMotion traffic unconfigured.
Show answer and explanation
Correct answer: C
Explanation
Network I/O Control (NIOC) on a vSphere Distributed Switch allows administrators to prioritize traffic types by assigning shares, bandwidth reservations, and limits. In this scenario, setting a higher shares value for storage traffic compared to vMotion traffic ensures that storage traffic is prioritized during network contention. While bandwidth reservations can guarantee minimum bandwidth, they don't achieve the explicit prioritization required in this scenario.
- A. Incorrect.
Setting a higher shares value for vMotion traffic prioritizes it over storage traffic, which is the opposite of the requirement.
- B. Incorrect.
Assigning a dedicated physical NIC can help prioritize traffic but is not related to configuring Network I/O Control (NIOC) on a VDS. This option does not utilize NIOC features.
- C. Correct.
Setting a higher shares value for the storage traffic ensures it gets prioritized over vMotion traffic during periods of contention, which is the goal of the scenario.
- D. Incorrect.
Configuring a bandwidth reservation for storage traffic ensures a guaranteed minimum bandwidth, but it does not directly prioritize storage traffic over vMotion traffic during contention.