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The Implementing Cisco Application Centric Infrastructure (300-620) certification exam is a 90-minute exam consisting of 60-70 questions. 300-620 exam tests the candidate’s knowledge of ACI architecture, fabric discovery and management, policies, virtualization, and integration with other Cisco products. Candidates who Pass 300-620 Exam will have demonstrated their ability to design, configure, and manage ACI solutions, making them highly valuable in the IT industry.
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Cisco 300-620 exam, also known as Implementing Cisco Application Centric Infrastructure (DCACI), is a certification exam designed to test a candidate's knowledge and skills in implementing and managing Cisco's Application Centric Infrastructure (ACI) solutions. ACI is a holistic and policy-driven approach to networking that simplifies the management of modern data center environments. Cisco 300-620 Exam is a part of the CCNP Data Center certification track and is intended for network professionals and IT engineers who are responsible for designing, deploying, and managing Cisco ACI solutions.
NEW QUESTION # 222
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 # 223
Where is the COOP database located?
Answer: A
NEW QUESTION # 224
A Cisco ACI fabric has L3Out using BGP with the maximum number of BGP prefixes configured as 1000. The fabric must raise the fault when 1001 prefixes are learned and the prefix 1002 must not be learned. Which BGP peer prefix action accomplishes this goal?
Answer: A
Explanation:
The reject action raises the fault when the 1001st prefix arrives (exceeding the 1000-prefix limit) and then refuses any further prefixes, so prefix 1002 is not learned.
NEW QUESTION # 225
As the Cisco ACI fabric administrator for a service provider, you have deployed a multitenant environment for your customers. Can a customer see the configuration of other customers' environments and fabric configurations?
Answer: C
NEW QUESTION # 226
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?
Answer: C
NEW QUESTION # 227
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