Technical: Key concepts on Hashmap, Difference between Hashmap and Hashset. Few questions on strings. About previous project and roles & responsibilites. Managerial round will basically about you, your strengths and problems faced in your career and how did you overcome it.
1. Merge sort 2. Sudoku kind of puzzle.
Why did you choose to apply for the position?
Priority Queue DSA, Java concepts like priority queue, difference between put and patch, arraylist linkedlist difference , their structural differences etc... They were lowkey obsessed with Priority Queue. Gave code snippets and asked me to tell the output. Dictionary, Stack questions were asked in the last round.
Nothing so good , waste of time . You are interviewed by some DevOps junior engineer
Find errors in code snippets they shared
The questions focus was on my technical decision-making process, approach to security risk analysis, and collaboration with leadership and audit teams.
How to deal with conflicts with coworkers
Informatica , Teradata , SAP , Business Analytics , Big data, Spark
understanding of the company’s history can come in helpful when formulating answers to AT&T interview questions. The company considers itself the first truly modern media company and boasts an impressive legacy of innovation that includes the transistor, solar cell, communications satellite, and machine learning. It traces its history back to when Alexander Graham Bell
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