Teradata interview questions
Online test → Technical → Technical → HR → HR·100% entry level
DSA
Showing 31 of 78 reported in this area
Delete a node in a Binary Search Tree
Detect and remove a loop in a linked list
Design the recursion tree to generate the power set of a given input string.
Check whether a given string is a palindrome
Explain Kadane's Algorithm.
Find the Kth maximum element in an array
Check whether a binary tree is a BST or not
Generate all permutations of a given string.
Merge two sorted singly linked lists in-place
Merge K sorted arrays using an efficient approach
Given a string, return all palindromic substrings.
Delete all nodes in a linked list which occur more than twice
Find the largest sum contiguous subarray (Kadane’s Algorithm)
Perform level order traversal of a binary tree in spiral form.
Given an array, find all elements that occur odd number of times
Explain Trie data structure, its node structure and implementation
Find the minimum number of perfect squares that sum to a given number
Perform level order traversal of a binary tree without using recursion
Search an element in a matrix where each row and each column is sorted
Perform level order traversal of a binary tree in spiral (zigzag) order
Write code that returns true if one matrix is a subset of another matrix
Traverse a binary tree in an anticlockwise direction (boundary traversal)
Find the first non-repeating character in a given string (optimized solution)
Find the kth element from the end of a singly linked list using a single pass
Write a function to return the length of a string without using any variables
Explain Breadth First Search (BFS), write its code, and give real-time applications
Given a string and a pattern, find the last occurrence of the pattern in the string
Reverse a string without using any variables, using your own string length function
Given a singly linked list, reverse the list whenever a node with value 1 is encountered
Given marks of 240 students, generate a report counting students in ranges (0–10, 11–20, ..., 91–100)
Perform binary search on an array that can be either ascending or descending by first detecting the order
CS fundamentals
Showing 23 of 66 reported in this area
What are magical (dunder) methods in Python? Explain with an example using generators.
What are in-built language exceptions and how can you raise custom exceptions?
Explain semaphore programming and its use cases
Declare and explain complex function pointers in C
Given a character array of size 20, set the 102nd bit
Differentiate between user-level threads and kernel-level threads
Explain data modeling concepts and the basics of a CI/CD pipeline.
How can a class object be used as a key in a dictionary in Python?
How do data types affect memory allocation in a programming language?
Explain the Linear Regression model and how data is fitted to the model
Explain stack segment, heap segment, and read-only memory segments in a process
How do data types affect memory allocation in programming languages like Python?
Evaluate outputs of sizeof and strlen expressions on empty string and NULL pointer
Store a list of names of unknown length dynamically in contiguous memory locations
What steps would you take to get code approved and deployed in a production environment?
Given C string manipulation code using pointers, explain what the code does and its output
Explain the internal working of malloc() and free(); what happens when free(arr+1) is called?
How do you identify and handle edge cases in a given logic and implement corresponding validations?
What are balanced binary search trees and what are the different types of rotations in an AVL tree?
Given a C structure array and pointer manipulation code, determine which values change and explain why
What is a compiler? Difference between compiler and interpreter; explain how a compiler works internally
Given a sample coding problem, discuss possible edge cases and how to implement corresponding validations.
What is hashing? Explain different hashing techniques and how hashing is implemented internally in C++ STL
Behavioural
Showing 3 of 10 reported in this area
What steps would you take for code approval in a production environment?
Did you ever encounter a person who was hard to handle? How did you handle them?
If you make a critical mistake just before a production release, how would you handle the situation?
System design
Showing 3 of 4 reported in this area
Explain microservice architecture, decoupling mechanisms, and the role of messaging queues.
Design an ML-based solution to reduce food wastage in a mess, including feature selection and classification
Given a general scenario, design an appropriate solution
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What questions does Teradata ask?
Candidate interview reports most often cover DSA (49%) and CS fundamentals (42%).
How many rounds does Teradata interview have?
Candidate interview reports show an average of 5.1 rounds per experience, with a typical sequence of Online test → Technical → Technical → HR → HR. Individual interview paths can vary.
Is the Teradata interview hard?
Among questions with a reported difficulty, the mix is easy 35%, medium 61%, hard 4%.