TO THE NEW Technical Lead Interview Questions and Answers

Q1. Mix of coding, theory and design questions
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Simple array questions

Q1. Difference between spring jpa and hibernate
Ans. 
Spring JPA is a part of the Spring framework that provides an abstraction layer on top of JPA, while Hibernate is a standalone ORM framework.
• Spring JPA is a part of the Spring framework and provides additional features like transaction management, dependency injection, and aspect-oriented programming.

• Hibernate is a standalone ORM framework that provides mapping between Java objects and database tables, along with featu...read more
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Q2. What is cyclic barrier
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Cyclic barrier is a synchronization aid that allows a set of threads to wait for each other to reach a common barrier point.
• Cyclic barrier is similar to CountDownLatch but can be reused after the barrier point is reached.

• It is initialized with a count of the number of threads that must invoke await() before the barrier is tripped.

• Threads wait at the barrier until all threads have invoked await(), then the barrier is re...read more
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Q1. Builder design pattern in java
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Builder design pattern is a creational design pattern used to construct complex objects step by step.
• Builder pattern separates the construction of a complex object from its representation.

• It allows the same construction process to create different representations of the object.

• Useful when there are multiple ways to construct an object or when the object creation process is complex.

• Example: StringBuilder in Java allows ...read more
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Q2. Docker, MQ series involved
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Q3. JOIN Query with country , emp name
Ans. 
JOIN query to retrieve country and employee name
• Use JOIN keyword to combine data from multiple tables

• Specify the columns to select from each table

• Use ON keyword to specify the relationship between the tables
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Q1. Ask about project and related skills
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Q2. Case scenario and problems
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Q1. About the tools and queries
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Q2. About the experience
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Q1. About the experience
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Q2. And the package relocation and shift
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Q1. One to one about the experience
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