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| Section | Weight | Objectives |
|---|---|---|
| Integrations | 15% | - Implement service graph - Describe resolution immediacy in VMM - Implement VMware vCenter DVS integration |
| ACI Fabric Infrastructure | 20% | - Describe ACI fabric discovery - Describe ACI Object Model - Implement ACI logical constructs - Implement ACI policies - Describe ACI topology and hardware - Utilize faults, event record, and audit log |
| ACI Anywhere | 10% | - Describe Multi-Pod - Describe Multi-Site |
| External Network Connectivity | 20% | - Implement Layer 2 out - Implement Layer 3 out |
| ACI Management | 20% | - Implement out-of-band and in-band - Configure an upgrade - Implement configuration backup (snapshot/config import export) - Implement AAA and RBAC - Utilize syslog and snmp services |
| ACI Packet Forwarding | 15% | - Implement bridge domain configuration knob - Describe endpoint learning |
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NEW QUESTION # 26
A bridge domain for an EPC called "Web Servers" must be created in the Cisco APIC.
The configuration must meet these requirements:
- Only traffic to known Mac addresses must be allowed to reduce noice.
- The multicast traffic must be limited to the ports that are
participating in multicast routing.
- The endpoints within the bridge domain must be kept in the endpoint
table for 20 minultes without any updates.
Which set of steps configures the bridge domain that satisfies the requirements?
Answer: B
NEW QUESTION # 27
An ACI administrator notices a change in the behavior of the fabric. Which action must be taken to determine if a human intervention introduced the change?
Answer: A
Explanation:
To determine if a change in the behavior of the ACI fabric was due to human intervention, an ACI administrator should inspect the audit logs in the APIC UI. The audit logs provide a record of all user events, which includes actions performed by users, making it possible to trace any changes back to specific human activities1.
NEW QUESTION # 28
An Cisco ACI leaf switch learns the source IP address of a packet that enters the front panel port of the switch. Which bridge domain setting is used?
Answer: D
Explanation:
The "Hardware Proxy" setting optimizes unicast traffic by using a proxy to respond to ARP requests, reducing flooding. While it aids in endpoint management, it is not the setting that directly enables learning the source IP address from incoming packets.
Explanation:
The question asks which bridge domain setting is used when a Cisco ACI leaf switch learns the source IP address of a packet entering the front panel port. This involves understanding how ACI handles endpoint learning and IP address association within a bridge domain.
Requirement Analysis
When a packet enters a leaf switch's front panel port, ACI learns the source IP and MAC address of the endpoint to populate its endpoint table.
The bridge domain settings control how IP addresses are learned and routed, especially for Layer 3 traffic.
The correct setting must enable the leaf switch to associate the source IP with the endpoint.
Option Evaluation
A . Unicast Routing:
The "Unicast Routing" setting in a bridge domain enables Layer 3 routing and allows the leaf switch to learn the source IP address of a packet by associating it with the MAC address and VLAN. When enabled, the switch performs IP-to-MAC mapping and updates the endpoint database, which is the standard mechanism for learning source IP addresses from incoming traffic.
Reference:
B . L3 Unknown Multicast Flooding - Flood:
This setting controls how unknown multicast traffic is handled at Layer 3 (e.g., flooding or dropping). It is unrelated to learning the source IP address of a unicast packet entering the front panel port.
C . ARP Flooding:
ARP Flooding allows ARP requests to be flooded within the bridge domain, which helps resolve IP-to-MAC mappings for silent hosts or external devices. However, it is not the primary setting for learning the source IP of an active packet; it is a supplementary mechanism.
Final Answer Justification
A is correct because enabling "Unicast Routing" in the bridge domain allows the leaf switch to learn the source IP address of a packet entering the front panel port by associating it with the source MAC address and VLAN. This is the foundational setting for Layer 3 endpoint learning in ACI.
Primary Cisco Reference:
Cisco APIC Layer 3 Networking Configuration Guide, "Bridge Domain Unicast Routing." Cisco ACI Endpoint Group Configuration Guide, "IP Address Learning."
NEW QUESTION # 29
Which two components are essential parts of a Cisco ACI Virtual Machine Manager (VMM) domain policy configuration? (Choose two.)
Answer: B,D
Explanation:
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_01011.html#concept_74EFC437C0AA44A391676F70ACE59DF3
NEW QUESTION # 30
What are two descriptions of ACI multi-site? (Choose two.)
Answer: D,E
Explanation:
ACI Multi-Site architecture is designed to interconnect geographically dispersed data centers and extend Layer 2 and Layer 3 connectivity between those locations with consistent policy enforcement. It allows for either a single APIC cluster to manage multiple ACI sites or supports a dedicated APIC cluster per site. This architecture ensures a scalable and flexible approach to managing multiple data center sites, providing a unified policy framework and operational model across the sites34.
Reference:
Cisco Multi-Site Deployment Guide for ACI Fabrics3
Cisco ACI Multi-Site Architecture White Paper4
NEW QUESTION # 31
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