TCS AST Consultant Interview Questions, Process, and Tips

Q1. GD and T related topics
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React and javascripts coding test

Q1. Salary Expectation
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Q2. Location selection
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Q1. What are Java 8 features?
Ans. 
Java 8 introduced several new features including lambda expressions, streams, functional interfaces, and default methods.
• Lambda expressions allow you to write code in a more concise and readable way.

• Streams provide a way to work with sequences of elements and perform operations on them.

• Functional interfaces are interfaces with a single abstract method, which can be implemented using lambda expressions.

• Default methods a...read more
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Q2. Java 8 stream api coding questions
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Q1. Tell me about your self
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Q2. Why our company?
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Q1. Regarding the technology worked on.
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Q1. Regarding managerial experiences, escalations, team handling, team building
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Q1. Belief, trust, contribution to industries expectations
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Q1. Day to day activity
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Q2. Scenario based question
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Q1. What is the difference between cache and persist in Spark?
Ans. 
Cache and persist are both used for optimizing Spark performance by storing intermediate results in memory, but persist allows for more customization.
• Cache() is a shorthand for persist(StorageLevel.MEMORY_ONLY)

• Persist() allows for specifying different storage levels such as MEMORY_ONLY, MEMORY_AND_DISK, etc.

• Persist() also allows for specifying serialization formats like Java, Kryo, etc.
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