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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: External Network Connectivity | 20% | - Implement Layer 3 out - Implement Layer 2 out |
| Topic 2: ACI Anywhere | 10% | - Describe Multi-Pod - Describe Multi-Site |
| Topic 3: ACI Management | 20% | - Implement configuration backup (snapshot/config import export) - Implement out-of-band and in-band - Utilize syslog and snmp services - Configure an upgrade - Implement AAA and RBAC |
| Topic 4: ACI Fabric Infrastructure | 20% | - Describe ACI fabric discovery - Implement ACI policies - Describe ACI Object Model - Utilize faults, event record, and audit log - Implement ACI logical constructs - Describe ACI topology and hardware |
| Topic 5: Integrations | 15% | - Implement service graph - Describe resolution immediacy in VMM - Implement VMware vCenter DVS integration |
| Topic 6: ACI Packet Forwarding | 15% | - Implement bridge domain configuration knob - Describe endpoint learning |
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NEW QUESTION # 151
Refer to the exhibit.
Refer to the exhibit. A tenant is configured with a single L30ut and a single-homed link to the core router called Core-1. An engineer must add a second link to the L30ut that connects to Core-2 router. Which action allows the traffic from Core-2 to BL-1002 to have the same connectivity as the traffic from Core-1 to BL-1001?
Answer: C
Explanation:
The scenario involves a tenant configured with a single L3Out and a single-homed link from the ACI fabric (via border leaf BL-1001) to a core router (Core-1). The engineer must add a second link to the L3Out, connecting to Core-2 via BL-1002, ensuring that traffic from Core-2 to BL-1002 has the same connectivity as traffic from Core-1 to BL-1001. The exhibit shows a single-homed setup with BL-1001 and BL-1002 as potential border leaves, with a dashed line indicating a planned second link.
Requirement Analysis
The existing L3Out is single-homed to Core-1 via BL-1001, and the goal is to extend it to a multi-homed configuration with Core-2 via BL-1002.
"Same connectivity" implies that the second link must be integrated into the existing L3Out configuration, sharing the same routing policies, external EPG, and subnet reachability.
The solution must leverage ACI's L3Out framework to add the new path without creating a separate L3Out or altering the current routing setup unnecessarily.
Option Evaluation
A . Add a second path to the logical interface profile of the existing L3Out:
The logical interface profile in an L3Out defines the interfaces (e.g., routed ports or sub-interfaces) and their associations with nodes (border leaves). Adding a second path to this profile allows the inclusion of the new link from BL-1002 to Core-2, ensuring it operates under the same L3Out configuration (e.g., routing protocol, external EPG). This maintains consistent connectivity and leverages ACI's multi-homing support.
Reference:
B . Add a second subnet to the external EPG to the existing L3Out:
Adding a subnet to the external EPG defines additional networks advertised or learned via the L3Out, but it does not address the addition of a new physical link or path. This is irrelevant to the connectivity requirement for the second link.
C . Add a second OSPF interface profile to the logical interface profile:
While the L3Out uses OSPF (implied by the context), adding a second OSPF interface profile would create a separate routing instance, which is unnecessary and could disrupt consistency. The existing OSPF configuration can be extended via the logical interface profile.
D . Add a second interface to the external domain to the existing L3Out:
The external domain associates VLAN pools, but it does not define paths or interfaces for L3Out connectivity. This option is incorrect as it confuses domain configuration with interface path management.
Final Answer Justification
A is correct because adding a second path to the logical interface profile of the existing L3Out integrates the new link from BL-1002 to Core-2 into the same routing and policy framework, ensuring equivalent connectivity to the Core-1 to BL-1001 link. This aligns with ACI's support for multi-homed L3Outs.
Primary Cisco Reference:
Cisco APIC Layer 3 Networking Configuration Guide, "L3Out Multi-Homing." Cisco ACI Best Practices, "Expanding L3Out Connectivity."
NEW QUESTION # 152
Refer to the exhibit.
Which action should be taken to ensure authentication if the RADIUS servers are unavailable?
Answer: D
Explanation:
To ensure authentication if the RADIUS servers are unavailable, the action that should be taken is to set the fallback login to local. This setting allows users to authenticate using the local database on the Cisco APIC when external RADIUS servers cannot be reached.
NEW QUESTION # 153
An engineer is extending EPG connectivity to an external network. The external network houses the Layer 3 gateway and other end hosts.
Which ACI bridge domain configuration should be used?
Answer: C
Explanation:
You need ARP flood to be able to communicate correctly with the external L2 domain.
https://aci-lab.ciscolive.com/lab/pod9/tenants/create-l2-bd
NEW QUESTION # 154
An engineer must configure VMM domain integration on a Cisco UCS B-Series server that is connected to a Cisco ACI fabric. Drag and drop the products used to create VMM domain from the bottom into the sequence in which they should be implemented at the top. Products are used more than once.
Answer:
Explanation:
NEW QUESTION # 155
Refer to the exhibit.
An engineer must configure an L3Out peering with the backbone network. The L3Out must forward unicast and multicast traffic over the link. Which two methods should be used to configure L3Out to meet these requirements? (Choose two.)
Answer: A,E
Explanation:
To configure an L3Out peering with the backbone network that must forward both unicast and multicast traffic, the two methods that should be used are:
Layer 3 routed port (Option A): This method involves configuring a physical port on the Cisco ACI leaf switch as a Layer 3 interface, which is suitable for routing unicast and multicast traffic.
Layer 3 routed subinterface (Option D): This method involves configuring a subinterface under a physical port, which allows for traffic segregation and routing over the same physical link, supporting both unicast and multicast traffic.
These methods ensure that the L3Out can handle the required traffic types and maintain proper routing with the backbone network.
https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centricinfrastructure/ guide-c07-743150.html#_L3Out_sStatic_rRoutes
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/4-x/L3-configuration/Cisco-APIC-Layer-3-Networking-Configuration-Guide-401/Cisco-APIC-Layer-3-Networking-Configuration-Guide-401_chapter_010010.html
NEW QUESTION # 156
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