Given a Scenario, Troubleshoot Common NSX Infrastructure Issues VCAP-VCF-SUPPORT Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A VM on an NSX overlay segment is experiencing intermittent connectivity issues. The VM can sometimes ping other VMs on the same segment, but the connection is unreliable. The administrator suspects a problem with the transport node. Which symptom is MOST indicative of a transport node issue?

   • AThe vCenter Server is showing a warning about the ESXi host's storage.
   • BThe NSX Manager is showing a high CPU usage.
   • CThe transport node's Geneve tunnels are showing as 'Down' in the NSX Manager UI.
   • DThe VM's IP address is conflicting with another VM on the same segment.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A company has a site-to-site VPN configured on their NSX Edge Tier-0 gateway. Remote users report that they can no longer access resources in the corporate network. The VPN tunnel status in the NSX Manager UI shows as 'Up'. What is the MOST likely cause of this issue?

   • AA misconfigured firewall rule on the Tier-0 gateway is blocking traffic from the VPN subnet.
   • BThe VPN tunnel is actually down, and the UI is displaying incorrect information.
   • CThe Tier-1 gateway is not advertising the corporate networks to the Tier-0 gateway.
   • DThe remote VPN device is not configured with the correct pre-shared key.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   A support engineer is troubleshooting an NSX issue where VMs cannot reach the internet. What is the first step in a systematic troubleshooting methodology?

   • ARestart the NSX Manager services to clear any potential issues
   • BGather information about the problem, including the scope, symptoms, and recent changes
   • CValidate the solution by testing connectivity from multiple VMs
   • DImmediately check the NSX Edge configuration for NAT and routing rules
   Reveal Solution Discussion Select an answer first
5. 19expert · hard

   An administrator is troubleshooting a performance issue on an NSX overlay network. VMs on the same host communicate quickly, but VMs on different hosts experience high latency and packet loss. The Geneve tunnels are up, and the transport nodes are healthy. What is the MOST likely cause of this issue?

   • AThere is a misconfigured distributed firewall rule that is causing the transport node to process packets inefficiently.
   • BThe VMs are using an incorrect MTU setting on their virtual NICs.
   • CThe NSX controllers are overloaded and cannot process control plane updates efficiently.
   • DThe underlying physical network is experiencing congestion or has a misconfigured MTU, causing fragmentation or drops of Geneve-encapsulated packets.
   Reveal Solution Discussion Select an answer first
6. 20application · medium

   An administrator notices that the NSX Manager cluster shows one node as 'Down' in the UI. The other two nodes are healthy. VMs on overlay segments are still communicating, but the administrator is concerned about the cluster's resilience. What is the MOST appropriate immediate action?

   • ACheck the NSX Manager API to see if the node is still responding to API calls.
   • BInvestigate the NSX Manager node's logs and system health to determine why it went down, then attempt to bring it back online.
   • CIgnore the issue because the cluster is still functional with two nodes and can operate indefinitely in this state.
   • DImmediately redeploy the failed NSX Manager node to restore the cluster to three nodes.
   Reveal Solution Discussion Select an answer first