Hi All,
I would like to share my interview questions for Senior Network Engineer role in Virtustream company.
Job Designation - Senior Advisor - IT Network Development Engineer.
Company - Virtustream (Dell Subsidiary)
Location - Bengaluru.
Below are list of questions asked during technical round.
Nexus questions :
1. What is the minimum BW required for a VPC peer link
2. what happens if Peer link goes down ? will it impact any servers ? what happen to data plane and control plane traffic
3. What happens if peer keepalive link goes down ? will there be any impact
4. Can we keep the peer-keepalive link down for long time ?
5. consider we have VPC configured for a server with two uplinks of each 10G. What will be the throughput on the server.
Switching Questions:
6. How RSTP works
7. What are the steps to create a vlan 100 in switch ?
8. What command will you use to allow additional vlan ( id 100 ) to the exiting trunk port where already some vlans are allowed.
9. What command will you use to delete a vlan ( id 100 ) from the exiting trunk port where already some vlans are allowed.
OSPF Questions:
10. How many ways you can advertise network in OSPF?
11. WHat is the command used to check what are all interfaces participate in OSPF ?
12. How will you t-shoot if the OSPF between two routers are not coming up and stuck in exstart state?
13. We are running OSPF in a broadcast environment with 4 routers. what will the state of routers which doesn't elected as DR and BDR routers ?
14. We have configured 2 subnets ( 10.1.1.1/24 & 20.1.1.1 /24 ) in OSPF broadcast environment.
How many DR and BDR will be elected ?
15. you have not advertised a subnet in to OSPF via network and redistribute commands but when you issue " show ip ospf interface " command you see one interface was running OSPF , what could be the reason. ?
16. If we are running two OSPF process in a router. how many database will be mainintined by the router ?
17. How to advertise routes between one OSPF process to other OSPF process in same router
BGP Questions:
18 , what is mean by VRF lite.
19. what mechannism is used by BGP to avoid loop in IBPG and EBGP
20. We have configured loopback IP address in two BGP routers , how ever they couln't establish BGP session , what could be reason.
ASA Questions:
21. ASA is sending traffic to different interface instead of DMZ interface , what could be the reason ?
22. list out commands to configure active /standby in ASA
23. Explain packet flow in ASA
24. what is identity NAT
25. What are the various types of NAT in ASA
26. we have configured site 2 site vpn and we observed encrypted packets counts are increasing at our end , but seeing no decrypted packets . what could be the reason ?
27. In the above same scenario , we see packets are decrypting but not getting encrypted ?
F5 Questions:
28. What is mean by SNAT in F5
29. what happens if SNAT is not configured
30. what is mean by persistence and its types
31. what could be reason if we see the F5 standby unit status as disconnected.
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