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Question 1:
Which approach does Cisco ACI use to achieve multidestination packet forwarding between leaf switches in the same fabric?
A. Map VXLAN VTEP to the multicast group
B. Map VXLAN to PIM-SM protocol
C. Map VXLAN VNI to the multicast group
D. Map VXLAN to PIM-DM protocol
Correct Answer: C
Question 2:
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
Correct Answer: A
Reference: https://www.cisco.com/c/en/us/support/docs/lan-switching/vlan/212682-virtual-extensible-lan-and-ethernet-virt.html
Question 3:
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
Correct Answer: BE
Question 4:
An organization migrates its virtualized servers from a legacy environment to Cisco ACI. VM1 is incorrectly attached to PortGroup IT|3TierApp|Web. Which action limits IP address learning in BD1?
A. Enable Enforce Subnet Check
B. Enable Rouge Endpoint Control
C. Enable GARP-based EP Move Detection Mode
D. Disable Remote EP Learn
Correct Answer: C
Question 5:
Refer to the exhibit. What must be configured to allow the PBR node (LB-int) to monitor the availability of the endpoint that is in the EPG server?
A. Endpoint Dataplane Learning
B. Unicast Route disabled for client and server bridge domains
C. PBR node tracking
D. Direct Connect in the service graph template
Correct Answer: A
Question 6:
An engineer must limit local and remote endpoint learning to the bridge domain subnet. Which action should be taken inside the Cisco APIC?
A. Disable Remote EP Learn
B. Enable Enforce Subnet Check
C. Disable Endpoint Dataplane Learning
D. Enable Limit IP Learning to Subnet
Correct Answer: B
Reference: https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-739989.html
Question 7:
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.
Correct Answer: D
Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/aci-fundamentals/b_ACI-Fundamentals/b_ACI-Fundamentals_chapter_010010.html#concept_1E8BF286E1C043EF839D80935FDF9F50
Question 8:
Which action should be taken in Cisco ACI to reassign a unique globally scoped pcTag to an EPG that provides a global contract?
A. Configure subnets that are treated as virtual IP
B. Configure subnets that advertise externally
C. Configure subnets that are shared between VRFs
D. Configure subnets that are private to VRF
Correct Answer: C
Reference: https://www.cisco.com/c/en/us/support/docs/cloud-systems-management/application-policy-infrastructure-controller-apic/119023-technote-apic-00.html
Question 9:
Refer to the exhibit. What must be configured in the service graph to redirect HTTP traffic between the EPG client and EPG server to go through the Cisco ASA firewall?
A. contract filter to allow ARP and HTTP
B. precise filter to allow only HTTP traffic
C. contract with no filter
D. permit-all contract filter
Correct Answer: A
Question 10:
Refer to the exhibits. Which subject must be configured for the All_noSSH contract to allow all IP traffic except SSH between the two EPGs?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: D
Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/ACI_Best_Practices/b_ACI_Best_Practices/b_ACI_Best_Practices_chapter_010.html
Question 11:
Refer to the exhibit. Two application profiles are configured in the same tenant and different VRFs. Which contract scope is configured to allow communication between the two application profiles?
A. global
B. VRF
C. application
D. tenant
Correct Answer: D
Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/Operating_ACI/guide/b_Cisco_Operating_ACI/b_Cisco_Operating_ACI_chapter_01000.html
Question 12:
Refer to the exhibit. Which combination of flags in the Cisco ACI contract allows a client in WebClient EPG to establish an HTTP connection toward a server in WebServer EPG?
A. Apply Both Direction ENABLED and Reverse Port Filter ENABLED
B. Apply Both Direction DISABLED and Reverse Port Filter DISABLED
C. Apply Both Direction DISABLED and Reverse Port Filter ENABLED
D. Apply Both Direction ENABLED and Reverse Port Filter DISABLED
Correct Answer: C
Question 13:
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
Correct Answer: BE
Question 14:
Which two actions should be taken to ensure a scalable solution when multiple EPGs in a VRF require unrestricted communication? (Choose two.)
A. Configure a taboo contract between the EPGs that require unrestricted communication between each other.
B. Enable Preferred Group Member under the EPG Collection for VRF section.
C. Set the VRF policy control enforcement preference to Unenforced.
D. Set the EPGs that require unrestricted communication between each other as preferred group members.
E. Set the EPGs that require policy enforcement between each other as preferred group members.
Correct Answer: CD
Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/4-x/basic-configuration/Cisco-APIC-Basic-Configuration-Guide-42x/Cisco-APIC-Basic-Configuration-Guide-42x_chapter_0110.html
Question 15:
Which two components must be configured as stretched to establish intra-VRF communication between two EPGs that are deployed in different sites and different bridge domains? (Choose two.)
A. contract
B. tenant
C. application profile
D. bridge domain
E. EPG
Correct Answer: DE
Reference: https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-739609.html