Cisco

Basic questions about hash and arrays. Find duplicates in a list of integers. Devise a simple hashing mechanism. In-order, pre-order, and post-order traversal of binary trees. Reverse a linked list.

3 Rounds 1st - Technical (MCQ) Contained questions from Microprocessors, Aptitude, Operating Systems, Networks, C/C++, Algorithms. 2nd - Technical Interview 3rd - HR Interview

There was a telephonic screening round, after which there were five technical rounds. All of them focused on C programming, data structures, networking, and problem-solving. I would say it was neither difficult nor easy. In all the rounds, a puzzle