2V0-21.23 Question 68
Select 3You are the administrator of a VMware vSphere environment that utilizes a vSphere Distributed Switch (VDS). You have been tasked with ensuring that critical traffic, such as vMotion and Fault Tolerance (FT), is prioritized during network congestion. Which steps should you take to configure and manage Network I/O Control (NIOC) to meet this requirement?
- A
Enable Network I/O Control (NIOC) on the vSphere Distributed Switch (VDS).
- B
Assign higher shares to the vMotion and Fault Tolerance traffic types in the Network Resource Pool configuration.
- C
Disable traffic shaping on all other traffic types.
- D
Configure physical NICs on the ESXi hosts to use 10 Gbps links.
- E
Verify that the ESXi hosts are using the appropriate Network Resource Pool settings for their respective traffic types.
Show answer and explanation
Correct answers: A, B, E
Explanation
To manage Network I/O Control (NIOC) on a vSphere Distributed Switch (VDS), NIOC must first be enabled. Critical traffic types like vMotion and Fault Tolerance should then be assigned higher shares in the Network Resource Pool to ensure they are prioritized during congestion. Additionally, verifying that ESXi hosts are using the appropriate Network Resource Pool settings ensures proper traffic classification and enforcement of the configured policies. Steps like disabling traffic shaping and upgrading NICs are unrelated or optional for NIOC configuration.
- A. Correct.
Correct: Enabling NIOC on the VDS is a prerequisite for configuring and managing traffic prioritization. Without enabling it, no traffic control can be applied.
- B. Correct.
Correct: Assigning higher shares to critical traffic types such as vMotion and Fault Tolerance ensures they receive prioritized bandwidth during network congestion.
- C. Incorrect.
Incorrect: Disabling traffic shaping is not required for NIOC to function. NIOC works independently of traffic shaping settings.
- D. Incorrect.
Incorrect: While using faster physical NICs, such as 10 Gbps links, can improve overall network performance, it is not directly related to configuring or managing NIOC.
- E. Correct.
Correct: Verifying that ESXi hosts are aligned with the Network Resource Pool settings ensures that traffic is classified and managed according to the defined NIOC policies.