300-615 sample questions

Question 1

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.)

Accepted Answer

Configure the NVE interfaces to be Up on both switches.

Accepted Answer

Configure the same VNI to multicast group maping.

Answer

Set a different distributed gateway virtual MAC address.

Answer

Set a different secondary IP addresses on NVE source-interface.

Answer

Set a different primary IP addresses on NVE source-interface.

Question 2

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 Nexus7000 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?

Accepted Answer

Unknown unicast flooding is not allowed.

Answer

Connectivity to this server is lost from site B because the MAC route is missing in the OTV VDC of the Cisco Nexus7000 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?

Answer

Use route map to statically advertise this MAC and redistribute with IS-IS.

Answer

Use the otv flood mac command to selectively flood traffic for a given MA

Answer

Use the otv isis bfd command to configure BFD protocol.

Question 3

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.)

Accepted Answer

Configure the local vPC role priority to have a higher value than Switch-

Answer

Configure the local vPC role priority to have a lower value than Switch-

Answer

Configure the local vPC role priority to have the same value as Switch-

Question 4

Refer to the exhibit. An OSPF adjacency between Router-A and Router-B fails to reach the FULL state. Which action resolves the issue? A.Adjust the MTU on Router-A to 1600.B.Disable the check of the MTU value.C.Set the OSPF media type to point-to-point.D.Adjust the MTU on Router-B to 1604.

Accepted Answer

Disable the check of the MTU value.

Answer

Adjust the MTU on Router-A to 1600.

Answer

Set the OSPF media type to point-to-point.

Answer

Adjust the MTU on Router-B to 1604.

Question 5

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?

Accepted Answer

Turn off lacp graceful-convergence.

Answer

Turn on lacp suspend-individual.

Answer

Turn on lacp graceful-convergence.

Answer

Turn off lacp suspend-individual.

Question 6

Refer to the exhibit. The HSRP configuration in the exhibit fails to function. Which action resolves this issue?

Accepted Answer

Configure HSRP version 2.

Answer

Enable IP redirects.

Answer

Set the MTU to 1500 bytes.

Answer

Configure the same HSRP group on both devices.

Question 7

Refer to the exhibit. The HSRP instance on both switches is showing as active. Which action resolves the issue?

Accepted Answer

Allow VLAN 100 between the switches.

Answer

Configure the HSRP timers to be the same.

Answer

Configure the IP address of N9K-B on the same subnet as N9K-

Question 8

An engineer troubleshoots a fabric discovery failure. Which two requirements about switch connectivity must be verified to solve the problem? (Choose two.) A.A Cisco APIC must be attached to a spine node only.B.A Cisco APIC must be attached to leaf nodes.C.Spine nodes must connect to other spine nodes.D.A Cisco APIC must be dual-attached to two separate spine nodes.E.Leaf nodes must connect to spine nodes only.

Accepted Answer

A Cisco APIC must be attached to leaf nodes.

Accepted Answer

Leaf nodes must connect to spine nodes only.

Answer

A Cisco APIC must be attached to a spine node only.

Answer

Spine nodes must connect to other spine nodes.

Answer

A Cisco APIC must be dual-attached to two separate spine nodes.

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