Wipro Interview Questions, Process, and Tips

Q1. Architecture of Datastage , difference between Lookup and join , differ Snowflake and starschema, grep command and functioning,
Ans. 
Datastage architecture, Lookup vs Join, Snowflake vs Starschema, grep command
• Datastage is an ETL tool used for extracting, transforming, and loading data

• Lookup is used to retrieve data from a reference dataset based on a key, while Join combines rows from two or more tables based on a related column

• Snowflake schema is a normalized form of a star schema, with dimension tables normalized into multiple related tables

• Grep ...read more
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Q1. Ssis sql dba sqlserver development
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Q2. MySQL dba MySQL development
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Core Java concept, data structure

Q1. Project overall technical skills
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Q1. Why you looking for change
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Q1. Selenium ,api,manula
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Q2. Java, oops,python
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Q1. Sprint Boot - architecture
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Q2. How does object get initialized?
Ans. 
Objects in object-oriented programming languages are initialized using constructors, which are special methods that are called when an object is created.
• Objects are initialized by calling a constructor method when the object is created.

• Constructors can have parameters to initialize the object with specific values.

• Objects can also be initialized using default constructors if no explicit constructor is defined.

• Initializa...read more
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Q3. Advantages of spring boot
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Spring Boot provides rapid application development, easy configuration, and built-in features for microservices.
• Rapid application development with minimal configuration

• Embedded server for easy deployment

• Auto-configuration for common setups

• Built-in support for monitoring, metrics, and health checks

• Integration with Spring ecosystem for seamless development
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Q4. Disadvantage of spring boot
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One disadvantage of Spring Boot is its potential for increased memory consumption.
• Spring Boot can consume more memory compared to traditional Java EE applications due to its auto-configuration and embedded server features.

• This can lead to higher resource usage and potentially slower performance.

• Developers need to be mindful of optimizing memory usage and monitoring application performance.

• Using Spring Boot for small, s...read more
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Q1. Informatica - basics
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Q2. Sql concepts, unix commands
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Q1. Strengths and weakness, how you overcome. Recent achievement. About handling roles and learning ability/interest
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