VMware vSphere 6 Foundations Exam 2V0-620: Network Failure Detection Options with vSphere Standard Switches

Network Failure Detection Options with vSphere Standard Switches

Question

Which two network failure detection options are available when using a vSphere Standard Switch? (Choose two.)

Answers

Explanations

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A. B. C. D.

CD.

https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.networking.doc/GUID-D34B1ADD-B8A7-43CD-AA7E-2832A0F7EE76.html

When using a vSphere Standard Switch, two network failure detection options are available:

  1. Link status only: This option uses the link status provided by the network interface card (NIC) to detect a network failure. The NIC periodically sends a signal to the switch, indicating that it is still connected. If the switch does not receive the signal for a set period, it assumes that the link has failed and takes appropriate action. This option is simple to configure and does not require any additional software or hardware.

  2. Link status with Beacon probing: This option uses a combination of link status and Beacon probing to detect a network failure. The NIC sends a signal to the switch as in the previous option. However, if the link status is still up, the switch sends a Beacon signal to the NIC. The NIC must respond to the Beacon within a set period, indicating that it is still functioning correctly. If the NIC fails to respond, the switch assumes that the link has failed and takes appropriate action. This option provides more accurate failure detection than link status alone, but it requires additional software support from the NIC driver.

The other two options mentioned in the question, "Fixed with preferred path" and "Dynamic", are not valid network failure detection options for a vSphere Standard Switch. "Fixed with preferred path" refers to a method of load balancing traffic across multiple network paths, while "Dynamic" likely refers to dynamic routing protocols such as OSPF or BGP, which are not directly related to network failure detection.