Cisco Developer interview questions

We had a OA then 3 interviews. The OA was of data Structures and Algorithms questions. These questions were of medium level leetcode questions. The first interview was easy leetcode medium level question. There werw 2 questions

difficult interview . lot of technical questions in depth. interview took place for 30 min. interviewed by 3 people. did my best but didn't get the job. they are expecting high experience from freshers.