300-630 Online Practice Questions and Answers

What does the VXLAN source port add to the overlay packet forwarding when it uses the hash of Layer 2, Layer 3, and Layer 4 headers of the inner packet?

A. ECMP

B. TCP optimization

C. disabled fragmentation

D. jumbo frames

Which two actions are the Cisco best practices to configure NIC teaming load balancing for Cisco UCS B-Series blades that are connected to the Cisco ACI leaf switches? (Choose two.)

A. Create vPC+

B. Enable LACP active mode

C. Create PAgP

D. Create vPC

E. Enable MAC pinning

What is the purpose of the Forwarding Tag (FTAG) in Cisco ACI?

A. FTAG is used in Cisco ACI to add a label to the iVXLAN traffic in the fabric to apply the correct policy.

B. FTAG is used in Cisco ACI to add a label to the VXLAN traffic in the fabric to apply the correct policy.

C. FTAG trees in Cisco ACI are used to load balance unicast traffic.

D. FTAG trees in Cisco ACI are used to load balance mutli-destination traffic.

Refer to the exhibit. Which two configurations enable inter-VRF communication? (Choose two.)

A. Set the subnet scope to Shared Between VRFs

B. Enable Advertise Externally under the subnet scope

C. Change the contract scope to Tenant

D. Change the subject scope to VRF

E. Export the contract and import as a contract interface

Refer to the exhibit. An engineer must have communication between EPG1 in VRF1 and External EPG in VRF2. Which three actions should be taken for the defined subnets in the L3Out External EPG to accomplish this goal? (Choose three.)

A. Enable Shared Route Control Subnet

B. Enable External Subnets for External EPG

C. Enable Export Route Control Subnet

D. Enable Shared Security Import Subnet

E. Enable Aggregate Shared Routes

F. Enable Import Route Control Subnet

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 Shared Security Import Subnet

B. Enable Aggregate Export Subnet

C. Enable Shared Route Control Subnet

D. Enable Export Route Control Subnet

How is broadcast forwarded in Cisco ACI Multi-Pod after ARP flooding is enabled?

A. For the specific bridge domain, all spines forward the broadcast frames to IPN routers

B. Broadcast frames are forwarded inside the pod and across the IPN using the multicast address that is associated to the bridge domain

C. Within a pod, the ingress leaf switch floods the broadcast frame on all fabric ports

D. Ingress replication is used on the spines to forward broadcast frames in the IPN infrastructure

Refer to the exhibit. A customer implements Cisco ACI Multi-Site with default MTU settings between two sites. Which configuration should be applied on the interface Eth1/10 on the ISN-1 device?

A. Option A

B. Option B

C. Option C

D. Option D

Cisco ACI fabric is migrated from network-centric mode to application-centric mode. What is possible in an application-centric design?

A. remapping of VLAN pools

B. migration of bare metal servers to virtual machines

C. creation of additional EPGs under one bridge domain

D. Cisco ACI VMM integration with hypervisors

A customer is deploying a new application across two ACI pods that is sensitive to latency and jitter. The application sets the DSCP values of packets to AF31 and CS6, respectively. Which configuration changes must be made on the APIC to support the new application and prevent packets from being delayed or dropped between pods?

A. disable DSCP translation policy

B. align the ACI QoS levels and IPN QoS policies

C. disable DSCP mapping on the IPN devices

D. align the custom QoS policy on the EPG site in the customer tenant