2V0-41.24 Question 176
Select 3You are configuring a DHCP and DNS setup in an NSX-T Data Center environment to support dynamic IP allocation and name resolution for virtual machines in a distributed application. The DHCP service is configured within NSX-T, but the VMs are not receiving IP addresses. After troubleshooting, you discover that DNS resolution for the VMs is also failing. Which steps should you take to resolve the issues?
- A
Ensure that the DHCP Profile is correctly associated with the logical switch connected to the VMs.
- B
Verify that the DNS Server IP addresses are correctly defined in the DHCP Options configured in NSX-T.
- C
Enable DHCP snooping on the physical switch connected to the NSX-T Edge Node.
- D
Check that the NSX-T Edge Node has reachability to the configured DNS servers.
- E
Configure static IP addresses for the VMs to bypass the DHCP service.
Show answer and explanation
Correct answers: A, B, D
Explanation
To resolve the issue, it is critical to ensure that the DHCP Profile is properly associated with the logical switch so VMs can acquire IP addresses dynamically. Additionally, NSX-T must provide correct DNS server information via DHCP Options, and the NSX-T Edge Node must have connectivity to the configured DNS servers to facilitate DNS resolution. DHCP snooping on physical switches and configuring static IPs are unrelated or non-ideal solutions in this scenario.
- A. Correct.
Ensuring that the DHCP Profile is associated with the logical switch is necessary for NSX-T to allocate IP addresses to the VMs connected to that switch. Without this association, DHCP will not function.
- B. Correct.
The DNS Server IP addresses must be correctly defined in the DHCP Options within NSX-T so that VMs can receive the necessary DNS configuration during the DHCP process.
- C. Incorrect.
DHCP snooping is a security feature on physical switches and is not related to the issue described, as the DHCP service is configured within NSX-T.
- D. Correct.
The NSX-T Edge Node must have connectivity to the DNS servers to ensure successful name resolution. Without this, DNS queries from VMs will fail.
- E. Incorrect.
Configuring static IP addresses is a workaround, not a solution to the DHCP issue. It does not resolve the underlying problem with DHCP or DNS.