Nexus Fabric Automation & CCIE Data Center Knowledge

1. What is the primary purpose of multicast in a VXLAN fabric?

Flood broadcast, unknown unicast, and multicast (BUM) traffic across VTEPs

Replicate routing table entries to all leaf switches

Distribute STP BPDU frames across the fabric

Synchronize configuration between APIC controllers

2. Which Cisco Nexus fabric automation technique enables zero-touch provisioning of new switches?

Cisco Fabric Discovery and Automation Protocol (CDAP)

Automatic Provisioning through APIC policy templates

Manual CLI configuration with backup and restore

SNMP traps and syslog event processing

3. What does a Bridge Domain (BD) in Cisco ACI represent?

A Layer 2 forwarding domain similar to a VLAN with integrated routing capabilities

A physical connection between two spine switches

A BGP route reflector cluster

A QoS queue scheduling mechanism

4. In a Nexus fabric, which feature allows dynamic adjustment of traffic paths based on congestion and link utilization?

Cisco Nexus Forwarding Optimization (NFO)

Equal-Cost Multipath (ECMP) routing

Virtual Port Channel (vPC) load balancing

Static route prioritization

5. What is the primary role of the Cisco Nexus Dashboard in fabric automation and management?

Provides a unified platform for managing multiple ACI fabrics and monitoring fabric health

Replaces all Nexus switch interfaces with a web-based CLI

Encrypts all data plane traffic between switches

Automatically configures all BGP neighbor relationships

6. Which Nexus protocol or feature is used to automatically discover and establish VXLAN tunnels between leaf switches?

BGP with EVPN

Spanning Tree Protocol (STP)

Cisco Discovery Protocol (CDP)

DHCP Option 82

7. In an ACI fabric, what does an Application Network Profile (ANP) contain?

A collection of endpoint groups and their communication contracts

A list of all MAC addresses on the fabric

The physical interface configuration for each switch

BGP route reflector information for the fabric

8. What is the advantage of using Cisco Nexus fabric automation for provisioning new application endpoints?

Reduces manual configuration and deployment time through automated policy application

Eliminates the need for network monitoring and troubleshooting

Removes all requirement for IP address planning

Guarantees zero packet loss during failover events

9. Which Nexus feature allows hardware-based forwarding of traffic based on application policies rather than traditional IP routing?

Policy-Based Forwarding (PBF)

Equal-Cost Multipath (ECMP)

Hot Standby Router Protocol (HSRP)

Virtual Routing and Forwarding (VRF)

10. In Cisco Nexus fabric automation, what does a contract define in ACI?

Communication rules and policies between application endpoints

The physical layout of spine and leaf switches

The encryption algorithm used for control plane traffic

The default gateway address for all tenants

11. Which Nexus feature enables consistent policy application across a fabric by centralizing policy definitions and distribution?

Cisco Application Centric Infrastructure (ACI)

Virtual Port Channel (vPC)

Border Gateway Protocol (BGP)

Spanning Tree Protocol (STP)

12. Which Nexus automation feature allows network operators to define intent-based policies without specifying individual switch configurations?

Application Centric Infrastructure (ACI)

Simple Network Management Protocol (SNMP)

Cisco Command-Line Interface (CLI)

Syslog Event Processing

13. In a Nexus fabric, what is the primary function of a spine switch?

Provides core connectivity and routes traffic between leaf switches

Connects end-user devices to the network

Manages VLAN trunking between access switches

Aggregates syslog messages from all devices

14. What is the role of the Cisco Application Policy Infrastructure Controller (APIC) in an ACI fabric?

Manages fabric policies, configuration, and monitoring from a centralized point

Routes packets between spine and leaf switches

Encrypts all traffic within VXLAN tunnels

Provides Layer 2 switching on edge devices

15. Which of the following is a key benefit of Cisco Nexus fabric automation compared to traditional network management?

Centralized policy enforcement and simplified provisioning

Elimination of all Layer 3 routing protocols

Removal of the need for switch configuration files

Automatic failover without redundant links

16. In Cisco ACI, what does a tenant represent?

A logical container for policies and objects belonging to an organization

A physical spine switch in the fabric

A VLAN on a single Nexus switch

A BGP autonomous system number

17. What is the primary advantage of using Virtual Port Channels (vPC) in a data center fabric?

Eliminates the need for spanning tree while providing redundancy

Increases bandwidth utilization across all uplinks

Automates VLAN configuration on all switches

Reduces CPU overhead on leaf switches

18. Which protocol does Cisco NX-OS use for fabric discovery and topology learning in spine-leaf architectures?

IS-IS

OSPF

BGP

RIP

19. In a VXLAN overlay network, what is the primary purpose of the VXLAN Tunnel Endpoint (VTEP)?

Encapsulate and decapsulate Layer 2 frames into VXLAN packets

Route BGP advertisements between leaf switches

Manage STP calculations across the fabric

Forward QoS markings to edge devices

CCIE Data Center Advanced Nexus Fabric Automation Quiz