Troubleshooting Cisco Data Center Infrastructure (DCIT)

Here you have the best Cisco 300-615 practice exam questions

  • You have 212 total questions to study from
  • Each page has 5 questions, making a total of 43 pages
  • You can navigate through the pages using the buttons at the bottom
  • This questions were last updated on October 23, 2025
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Question 1 of 212
A vPC Type-1 inconsistency between two vPC peers in a VXLAN EVPN setup is discovered. Which two actions need to be attempted to resolve the issue?
(Choose two.)
    Correct Answer: A, D

    To resolve a vPC Type-1 inconsistency in a VXLAN EVPN setup, it is necessary to configure the NVE interfaces to be Up on both switches to ensure that the interfaces are operational and can properly handle the VXLAN traffic. Additionally, configuring the same VNI (VXLAN Network Identifier) to multicast group mapping on both switches ensures proper forwarding of multidestination traffic and avoids inconsistencies. These actions help maintain consistent forwarding tables and operational states across the vPC domain.

Question 2 of 212
A mission-critical server is connected to site A. Connectivity to this server is lost from site B because the MAC route is missing in the OTV VDC of the Cisco Nexus
7000 in site B due to MAC aging. Which action allows the flooding of the unknown unicast MAC on the Nexus 7000 in the OTV VDC?
    Correct Answer: C

    To allow the flooding of unknown unicast MAC on the Nexus 7000 in the OTV VDC, you should use the otv flood mac command. This command enables selective unicast Overlay Transport Virtualization (OTV) flooding for a given MAC address. The configuration is specifically designed to address scenarios where unknown unicast traffic needs to be selectively flooded based on the MAC address, thus addressing the problem of MAC aging and connectivity loss.

Question 3 of 212
Exam 300-615: Question 3 - Image 1
Refer to the exhibit. After a failover occurs, which two actions must be performed on Switch-B to manually preempt the operational primary role back to Switch-A?
(Choose two.)
    Correct Answer: A, E

    In the scenario described, to preempt the operational primary role back to Switch-A after a failover, two actions should be taken: First, configure the local vPC role priority on Switch-B to have a lower value than Switch-A. This ensures that Switch-A is preferred in the election process. Second, disable and then re-enable the vPC peer link to force the priority change to take effect. These actions will allow the original primary switch to retake its role.

Question 4 of 212
Exam 300-615: Question 4 - Image 1
Refer to the exhibit. An OSPF adjacency between Router-A and Router-B fails to reach the FULL state. Which action resolves the issue?
    Correct Answer: A

    The debug messages indicate that there is an MTU mismatch between Router-A and Router-B. Router-A's MTU is set to 2000 and Router-B's MTU is set to 1600. The correct way to resolve MTU mismatches that prevent OSPF from reaching the FULL state is to ensure that the MTU settings on both routers match. In this case, adjusting the MTU on Router-A to 1600, which matches Router-B's MTU, will resolve the issue and allow the OSPF adjacency to form correctly.

Question 5 of 212
The Cisco Nexus switch is connected to a peer switch that is not running Cisco NX-OS. The switches are connected using port channel and are experiencing packet loss. Which action should be performed on the Cisco Nexus switch ports to resolve this issue?
    Correct Answer: C

    When a Cisco Nexus switch is connected to a peer switch that is not running Cisco NX-OS and packet loss occurs over a port channel, the correct action is to turn off LACP graceful-convergence. Disabling LACP graceful-convergence helps ensure compatibility and stability when interfacing with non-NX-OS devices, as LACP graceful-convergence can cause issues with handling port-channel negotiations with such devices that do not fully support NX-OS LACP features.