Cisco Software Engineer interview questions

Asked about the resume, then several basic data structures, binary tree search, tree traversal, etc. Also asked about some basic algorithms, BFS, DFS, backtracking, recursion, etc. One hard question is about construct a binary search tree using heap, or priorityqueue. Also some questions about Java, Class, Objects, etc.

The interview rounds were smooth. I cleared the written test round and went through for technical. I had 2 technical rounds which were more in line with software development and had questions from Data Structures and Algos. The questions mainly revolved around strings and a little bit of hashing as well. I answered the questions well. But I could not go through to the HR round.