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2V0-620 · Question #76

An administrator is troubleshooting basic network connectivity issues. Which two scenarios are potential issues that this administrator might face? (Choose two.)

The correct answer is A. The vSwitch is not attached to the correct physical network. B. The portgroup is not configured to use correct VLAN. Basic network connectivity problems in a virtual environment are most commonly caused by an incorrect physical uplink assignment on the vSwitch or a VLAN misconfiguration on the portgroup.

Section 5 – Administer and Maintain vSphere

Question

An administrator is troubleshooting basic network connectivity issues. Which two scenarios are potential issues that this administrator might face? (Choose two.)

Options

  • AThe vSwitch is not attached to the correct physical network.
  • BThe portgroup is not configured to use correct VLAN.
  • CTraffic shaping is configured incorrectly.
  • DJumbo frames is configured incorrectly.

How the community answered

(69 responses)
  • A
    88% (61)
  • C
    7% (5)
  • D
    4% (3)

Why each option

Basic network connectivity problems in a virtual environment are most commonly caused by an incorrect physical uplink assignment on the vSwitch or a VLAN misconfiguration on the portgroup.

AThe vSwitch is not attached to the correct physical network.Correct

If a vSwitch is not connected to the correct physical NIC or uplink, VMs on that switch have no path to the physical network, resulting in a complete loss of connectivity. This is a fundamental uplink assignment error that directly prevents all communication.

BThe portgroup is not configured to use correct VLAN.Correct

An incorrect VLAN ID on a portgroup causes traffic to be tagged on the wrong VLAN, so frames never reach the intended destination network segment, breaking basic connectivity between the VM and its peers.

CTraffic shaping is configured incorrectly.

Traffic shaping limits or shapes available bandwidth but does not prevent frames from being delivered, so basic connectivity remains functional even when misconfigured.

DJumbo frames is configured incorrectly.

Incorrect jumbo frame MTU settings can cause oversized packet drops but standard-size frames still pass, meaning basic connectivity is degraded rather than fully broken.

Concept tested: Basic vSwitch and portgroup network connectivity troubleshooting

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.networking.doc/GUID-DD3E5F27-DE33-47ED-BCC4-6F9CE4E7F7F0.html

Topics

#network troubleshooting#vSwitch#VLAN#portgroup configuration

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