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NTT Data
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posted on 18 Jun 2021
I applied via Campus Placement and was interviewed in Dec 2020. There were 5 interview rounds.
Real-time examples of OOP concepts
Inheritance: A car is a vehicle, inheriting properties of a vehicle
Polymorphism: A shape can be a square or a circle, both implementing the same area method
Abstraction: A TV remote has buttons to perform actions, but the user doesn't need to know how it works internally
Encapsulation: A bank account has private data like balance, which can only be accessed through public methods
SQL query to print rows with no match in a second table
Use LEFT JOIN to join the two tables
Filter the rows where the second table's primary key is NULL
SELECT the columns from the first table
HashMap is a data structure that stores key-value pairs and allows fast retrieval of values based on keys.
HashMap is part of the Java Collections Framework.
It uses hashing to store and retrieve elements.
It allows null values and null keys.
It is not synchronized by default, but can be made synchronized using Collections.synchronizedMap() method.
Example: HashMap
Final, finally and finalise are related to completion or conclusion, but have different meanings and usage.
Final is an adjective used to describe the last or ultimate stage of something.
Finally is an adverb used to indicate the end of a process or event after a long wait or delay.
Finalise is a verb used to complete or finish something, often with a formal or official process.
Examples: The final exam, finally finished t
Different types of DBMS, DB languages & difference between drop, delete & truncate.
Types of DBMS: Relational, NoSQL, Object-oriented, Hierarchical, Network, etc.
Database languages: SQL, PL/SQL, T-SQL, etc.
DROP: Deletes a table and its data, cannot be rolled back.
DELETE: Deletes rows from a table, can be rolled back.
TRUNCATE: Deletes all rows from a table, cannot be rolled back.
posted on 13 May 2021
I applied via Campus Placement and was interviewed in Nov 2020. There were 5 interview rounds.
posted on 2 May 2021
I applied via Naukri.com and was interviewed in Nov 2020. There was 1 interview round.
What people are saying about NTT Data
posted on 10 Jul 2021
NTT Data interview questions for designations
posted on 11 Oct 2020
I applied via Walk-in and was interviewed in Aug 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Sep 2019. There were 3 interview rounds.
posted on 6 Apr 2021
posted on 30 Jun 2021
I applied via Company Website and was interviewed before Jun 2020. There were 3 interview rounds.
posted on 11 Oct 2020
I applied via Campus Placement and was interviewed before Oct 2019. There were 4 interview rounds.
posted on 29 Jun 2021
I applied via Campus Placement and was interviewed before Jun 2020. There were 4 interview rounds.
Some of the top questions asked at the NTT Data Associate/Senior Associate -(Technical) interview -
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