Dell Technologies Software Development Engineer (SDE) interview questions

Criteria was cgpa: 6 and above (overall). 1st round was written round in which mcq questions were there,apti,OS,CN,data structures,dbms,oops. For 2nd round technical interview was there in which interviewer asked 2-3 apti questions (clock and angle) ,oops questions, SQL query, about project,and 1 coding question of preorder traversal of a tree. Round 3rd was managerial round which is of 30 minutes. 4th round was HR round.

link list last node deletion. How to detect cycle in the link list. how is B+ tree is better than the B tree and which one is helpful for a range query. How to find number of set bit in binary representation of a positive integer