TransUnion Developer Interview Questions and Answers

Q1. What is HashMap?
Ans. 
HashMap is a data structure that stores key-value pairs and provides constant time complexity for basic operations.
• HashMap allows quick access to values based on their keys

• Keys must be unique and values can be duplicated

• HashMap is not thread-safe and requires synchronization for concurrent access

• Java's HashMap implementation uses hashing to distribute keys across buckets
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Q2. It’s a collection framework.
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All aptitude type questions as well as core computer science subject questions comes

Profit loss , number system, code decode

Q1. What is DDL, DML, DQL
Ans. 
DDL stands for Data Definition Language, DML stands for Data Manipulation Language, and DQL stands for Data Query Language.
• DDL is used to define the structure of database objects such as tables, indexes, and views.

• DML is used to manipulate data in the database, such as inserting, updating, and deleting records.

• DQL is used to retrieve data from the database using queries.

• Examples: CREATE TABLE is a DDL statement, INSERT...read more
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Q1. SDLC process and how it is implemented in project
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Q2. About projects, it's Objective, the role I have worked, output
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Q3. Data structure, DBMS concepts
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Q1. Self introduction
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Q2. What is Bajaj Allianz
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Q1. Tele me something about yourself
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Q2. What is insurance
Ans. 
Insurance is a financial protection against potential losses or risks.
• Insurance is a contract between an individual or entity and an insurance company.

• The individual or entity pays a premium in exchange for coverage against specific risks.

• In case of a covered loss, the insurance company compensates the policyholder.

• Types of insurance include health, life, auto, home, and business insurance.

• Insurance helps individuals a...read more
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Q1. What do you know about insurance
Ans. 
Insurance is a financial product that provides protection against specific risks in exchange for payment of a premium.
• Insurance is a contract between an individual or entity and an insurance company.

• The individual or entity pays a premium to the insurance company in exchange for coverage against specific risks.

• Types of insurance include health insurance, life insurance, auto insurance, and property insurance.

• Insurance ...read more
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Q1. What do you like about HDFCergo
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