Cisco Software Engineer II Intern interview questions

what is JVM

I was asked questions on 1. Routing protocols such eigrp ospf and bgp. 2. Spanning tree protocols and about trunk port modes etc 3. Basic questions about subnetting and asked few problems on the same. 4. Asked to write code on how to ssh into a cisco IOS router and extract whether an interface is up or down using any coding language of choice 5. Asked to write code on how to keep track of the number of distinct words and a count of the same from a file. 6. Debugging how a neighbouring router/switch port is alive or dead 6. Basic questions on Operating systems concepts and linked lists.