Part 1: 10 Basic interview questions on Cisco ACI

Today we are going to talk about the very basic few questions which are usually asked in the interview for Cisco ACI.

Let's start with the first part of interview questions in Cisco ACI. we will come up with another round of questions in ACI.

Fig 1.1- Cisco ACI

Q1: What are the main components that make up the ACI architecture  ?
 Spine, Leaf, APIC 

Q2 : What model of switches have you used to deploy ACI architecture? 
Nexus 9300  and Nexus 9500 

Q3: What is the purpose of IS-IS ? 
Advertise VTEP addresses  
Compute multicast trees  

Q4: What Cisco ACI policy object is similar to a VLAN  ?
Bridge Domain  

Q5: What is used to control how EPG communicate with each other  ?

Q6: What table on the switch does the mac address live ?
Local Switch table (LST)  

Q7: Where does the mac address live in the spine switch ? 
GST ( Global Station Table )  

Q8: What protocol is used to learn mac addresses from the spines  ?
COOP  protocol

Q9: What is the purpose of the border leaf's  ?
Connects devices like routers to the Branches  

Q10: What is an ANP and what provide polices that make up the fabric policy ?
Application Network Profile.  They are a group of EPGs and the policies that define the communication between them  


  • Switch Policies 
  • Module Polices 
  • Interfaces Policies 
  • Global Polices 
  • Pools 
  • Physical and External Domain 
  • Monitor and trouble 

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