Deloitte Consultant Interview Questions, Process, and Tips for Experienced

Q1. Your surname? If you are a lala then surely selected
Add your answer
Q2. What your father do? They just want to know if you can bring business to them
Add your answer

Q1. What are the features of Java 8?
Ans. 
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to write code in a more concise and readable way. For example, (a, b) -> a + b.

• Functional interfaces are interfaces with a single abstract method, such as java.util.function.Function.

• Streams provide a way to work with collections of objects in a functional style. For e...read more
Answered by AI
Add your answer
Q2. What are generics in Java, and how do they provide benefits?
Ans. 
Generics in Java allow for type-safe collections and classes, providing compile-time type checking and reducing the need for casting.
• Generics enable the creation of classes, interfaces, and methods that operate on specified types.

• They provide compile-time type safety, preventing runtime errors due to type mismatches.

• Generics reduce the need for explicit type casting, making code more readable and maintainable.

• Example: ...read more
Answered by AI
Add your answer
Q3. Streams API coding questions.(3-4 question.)
Add your answer
Q4. What are the classes involved from the entity to the controller level, and can you explain the annotations used in each?
Ans. 
Classes and annotations used from entity to controller level in a Java application.
• Entity classes represent database tables and are annotated with @Entity.

• Repository classes handle database operations and are annotated with @Repository.

• Service classes contain business logic and are annotated with @Service.

• Controller classes handle HTTP requests and are annotated with @Controller.
Answered by AI
Add your answer
Q5. SQL queries(2-3 questions).
Add your answer
Q6. What is the usage of Spring Batch, and how did you implement it in your project? What are its key features?
Ans. 
Spring Batch is a lightweight, comprehensive batch framework designed for robust, scalable batch processing.
• Spring Batch is used for processing large volumes of data in batch jobs.

• It provides reusable functions for common batch processing scenarios such as reading, processing, and writing data.

• Spring Batch can be implemented to handle complex processing logic, error handling, and transaction management.

• Key features inc...read more
Answered by AI
Add your answer
Q7. What is the mechanism of how React works, specifically in relation to the Virtual DOM?(Some Additional questions on React - Theoretical)
Ans. 
React uses Virtual DOM to efficiently update the actual DOM by comparing the changes and only updating what is necessary.
• React creates a virtual representation of the actual DOM called Virtual DOM.

• When state or props change, React compares the Virtual DOM with the actual DOM to identify the differences.

• React then updates only the necessary parts of the actual DOM, minimizing the number of DOM manipulations.

• This process...read more
Answered by AI
Add your answer

Q1. Which design patterns are you familiar with?
Ans. 
I am familiar with design patterns such as Singleton, Factory, Observer, and Strategy.
• Singleton

• Factory

• Observer

• Strategy
Answered by AI
Add your answer
Q2. Which design patterns have you used, and how have you implemented them? Please explain.
Ans. 
I have used design patterns such as Singleton, Factory, and Observer in my projects.
• Implemented Singleton pattern to ensure only one instance of a class exists

• Utilized Factory pattern to create objects without specifying the exact class

• Applied Observer pattern to establish a one-to-many dependency between objects
Answered by AI
Add your answer
Q3. What are threads in the context of programming?
Ans. 
Threads in programming are lightweight processes that can run concurrently within a program.
• Threads allow for parallel execution of tasks within a program

• Threads share the same memory space, allowing for efficient communication and data sharing

• Examples of using threads include multi-threaded web servers and parallel processing in data analysis
Answered by AI
Add your answer
Q4. Benefits of Spring Boot over Spring?
Ans. 
Spring Boot simplifies Spring application development by providing out-of-the-box features and reducing configuration.
• Spring Boot reduces boilerplate code by providing default configurations for various components like embedded servers, logging, and security.

• Spring Boot allows for easier deployment by packaging applications as standalone JAR files with embedded containers.

• Spring Boot provides a range of starter depende...read more
Answered by AI
Add your answer

Q1. It was basic salary and expectation discussion.
Add your answer

MCQs were asked for screening

Q1. General oracle SQL interview questions like difference between nvl nvl2 and coalesce
Add your answer
Q2. Difference between procedure and functions
Ans. 
Procedures perform actions without returning values; functions return values and can be used in expressions.
• Procedures are called for their side effects, e.g., updating a database.

• Functions return a value and can be used in expressions, e.g., calculating a sum.

• Procedures do not return a value, while functions must return a value.

• In programming, procedures are often referred to as 'subroutines' or 'methods'.

• Example of a...read more
Answered by AI
Add your answer

Q1. Core Java OOPS Multithreading..
Add your answer
Q2. Codding question for collection like Array list and LinkedList
Add your answer

Q1. Spring related question like annotation POM file, ....
Add your answer
Q2. Cloud related experience/question
Add your answer

Q1. Previous experience question like project experience...
Add your answer