300-620 Online Practice Questions and Answers

Which type of profile needs to be created to deploy an access port policy group?

A. attachable entity

B. Pod

C. module

D. leaf interface

What must be enabled in the bridge domain to have the endpoint table learn the IP addresses of endpoints?

A. L2 unknown unicast: flood

B. GARP based detection

C. unicast routing

D. subnet scope

Refer to the exhibit.

An engineer is deploying a Cisco ACI environment but experiences a STP loop between switch1 and switch2. Which configuration step is needed to break the STP loop?

A. Configure a Layer 2 external bridged network on the interfaces facing the MST switches.

B. Enable the native VLAN on the interfaces facing the MST switches using static ports in a dedicated EPG.

C. Enable BPDU filter under the STP interface policy on the interfaces facing the MST switches.

D. Configure the STP instance to VLAN mapping under the switch STP policy.

What is the effect of enabling the disable Remote EP learn feature?

A. It disables remote IP endpoint learning on all leaf nodes in the fabric.

B. It disables remote IP endpoint learning on leaf switches that do not have L3Outs.

C. It limits learning of compute leaf endpoints on border leaves.

D. It prevents border leaf switches from receiving routes through peering with external routers.

Refer to the exhibit.

The 0.0.0.0/0 is configured as a default static route on L3Out-1. Which action should be taken for the 0.0.0.0/0 prefix to advertise out on L3Out-2 OSPF?

A. Enable Export Route Control Subnet.

B. Enable Shared Security Import Subnet.

C. Enable Shared Route Control Subnet.

D. Enable Aggregate Export Subnet.

In a Cisco ACI fabric, an endpoint moves between two leaf switches during a virtual machine migration. Which action does Cisco ACI take to minimize the impact to traffic during this event?

A. A new leaf switch updates a COOP database on the spine, which causes the old leaf switch to install a bounce entry.

B. A new leaf switch sends a COOP message to the Cisco APIC cluster to populate a new location of the endpoint.

C. A new leaf switch sends a COOP message directly to the old leaf switch to update it with new information about the endpoint move.

D. A new leaf switch floods GARP to every other leaf switch in the fabric, which advertises a new endpoint location to the fabric.

An engineer must add new servers to a Cisco ACI cluster and configure ports to accept the new servers. The existing servers are dual-homed to Leaf101 and Leaf102 using ports 1-3 and an interface policy group called cluster1_ifpg. The new servers must use ports 1 and 2 on Leaf103 and Leaf104. Which two actions must be taken to enable the ports with the same configuration as the existing servers in the cluster? (Choose two.)

A. Attach interface selectors to leaf profiles Leaf103 and Leaf104.

B. Use interface selector for cluster1_infpg.

C. Connect with interface selector using a new AEP.

D. Configure interface selector using a new interface policy group.

E. Select ports 1 and 2 using interface selectors.

Refer to the exhibit.

An engineer is implementing a BPDU filter on external switch interfaces that face the Cisco ACI fabric to prevent excessive TCNs from impacting the fabric. Which configuration must be applied on Cisco ACI to avoid a Layer 2 loop?

A. Configure MCP globally.

B. Implement BPDU Guard.

C. Apply an MSTP instance on Cisco ACI.

D. Enable STP on downlinks.

Refer to the exhibit.

An engineer plans to upgrade the Cisco ACI fabric. Leaf1 and Leaf2 are deployed in a VPC. The fabric is peering with R1 using BGP protocol.

Which two actions upgrade the fabric nondisruptively? (Choose two.)

A. Configure the Graceful upgrade option.

B. Disable the BGP neighborship between Cisco ACI fabric and R1.

C. Enable the Graceful Insertion and Removal option.

D. Configure one maintenance group for every leaf.

E. Create one update group for all spines.

Refer to the exhibit.

An engineer connects a Cisco ACI fabric to two different Cisco Nexus 9000 Series Switches. The fabric must be configured to ensure a loop-free topology and N9K1 must be configured as the root bridge for VLAN 10. Which action meets these requirements?

A. Enable STP on ports between the leaf and spine.

B. Set BPDU Guard on ports between the leaf and Nexus 9000 Series Switches.

C. Enable Cisco Discovery Protocol on ports between the leaf and spine.

D. Activate MCP on ports between the leaf and Nexus 9000 Series Switches.