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NTT DATA, Inc.
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NTT DATA, Inc. Lead Engineer Interview Questions, Process, and Tips
NTT DATA, Inc. Lead Engineer Interview Experiences
1 interview found
I was interviewed in Apr 2021.
Interview Questionnaire
6 Questions
- Q1. Select columnname as 1 from employee table,Output if employee table contain 100 record?
- Ans.
The question is asking to select a column named 'columnname' as '1' from the employee table and provide the output if the table contains 100 records.
The column 'columnname' does not exist in the employee table, so the query will result in an error.
The value '1' will be selected for each record in the employee table, resulting in 100 rows with the value '1'.
The output will be a single column with 100 rows, all containin
- Q2. Can we perform DML operation on UDF function?
- Ans.
No, DML operations cannot be performed on UDF functions.
UDF functions are read-only and cannot modify the data in the database.
DML operations can only be performed on tables or views.
UDF functions can be used in SELECT statements to retrieve data.
Examples of UDF functions include string manipulation, date calculations, and mathematical operations.
- Q3. Diff b/w Virtual and new keyword?
- Ans.
Virtual keyword is used for method overriding while new keyword is used for hiding base class member.
Virtual keyword is used to allow a derived class to override a method in the base class.
New keyword is used to hide a base class member in the derived class.
Virtual keyword is used with the base class method while new keyword is used with the derived class method.
Virtual keyword is used for runtime polymorphism while ne
- Q4. What is method hiding?
- Ans.
Method hiding is a technique in object-oriented programming where a subclass provides a method with the same name as a method in its superclass.
Method hiding is also known as static polymorphism or compile-time polymorphism.
It allows a subclass to provide its own implementation of a method without affecting the superclass's implementation.
The method in the subclass must have the same name and signature as the method in...
- Q5. Return type of patial view and render partial view?
- Ans.
Partial view returns HTML string while render partial view writes directly to response stream.
Partial view returns HTML string that can be used in the main view
Render partial view writes directly to response stream
Partial view can be used to render reusable components
Render partial view can be used to render a partial view without a layout
- Q6. Select a.*,b.* From employee a,Employee2 b? Output please...
- Ans.
SQL query to select all columns from two tables.
Use SELECT statement to select columns from tables.
Use aliases to differentiate columns from different tables.
Separate table names with comma in FROM clause.
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Lead Engineer Interview Questions & Answers
Societe Generale Global Solution Centre
Anonymous
posted on 24 Oct 2024
I applied via Approached by Company and was interviewed in Sep 2024. There was 1 interview round.
(3 Questions)
- Q1. Remove duplicates in an array
- Ans.
Use a hash set to remove duplicates in an array of strings
Create a hash set to store unique elements
Iterate through the array and add each element to the hash set
Convert the hash set back to an array to get the unique elements
- Q2. What is react virtual DOM
- Ans.
React virtual DOM is a lightweight copy of the actual DOM, used for efficient updates and rendering in React applications.
Virtual DOM is a concept where a lightweight copy of the actual DOM is created in memory.
React uses virtual DOM to efficiently update and render components without directly manipulating the actual DOM.
When changes are made to the virtual DOM, React calculates the most efficient way to update the act...
- Q3. React hooks with example
- Ans.
React hooks are functions that let you use state and other React features without writing a class.
React hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.
useState() is a hook that allows you to add state to functional components.
useEffect() is a hook that allows you to perform side effects in functional components.
useContext() is a hook that allows you to use the con...
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in May 2024. There were 3 interview rounds.
(2 Questions)
- Q1. Questions on core java concepts
- Q2. Questions on SQL and Springboot
(2 Questions)
- Q1. Questions on Collection framework.
- Q2. Questions on Springboot and core java
(2 Questions)
- Q1. Scenario based question
- Q2. Stream API questions
Selected
I applied via Naukri.com and was interviewed in Jul 2024. There were 2 interview rounds.
(2 Questions)
- Q1. About your self
- Q2. About work experience
(2 Questions)
- Q1. Expected ctc lpa
- Q2. Notice period of it less than 90 or not
Suman Ghosh
I applied via Job Portal and was interviewed in Dec 2024. There was 1 interview round.
(2 Questions)
- Q1. Spring boot questiions
- Q2. Java stream api coding
I applied via Naukri.com and was interviewed in May 2024. There were 3 interview rounds.
Basic questions for aptitude genearal personl developing questions
(2 Questions)
- Q1. What is react native
- Ans.
React Native is a framework for building mobile applications using JavaScript and React.
Allows developers to write code once and deploy it across multiple platforms
Provides access to native features and APIs of the device
Supports hot reloading for faster development
Used by companies like Facebook, Instagram, and Airbnb
- Q2. Diff use memo and use reducer
- Ans.
Memo is used for optimizing performance by caching the result of a function, while reducer is used for managing state in React applications.
Memo is used to memoize the result of a function and prevent unnecessary re-renders.
Reducer is used to manage state in React applications by updating the state based on actions.
Memo can be used with useMemo hook in React to optimize performance.
Reducer is typically used with useRed...
(2 Questions)
- Q1. Salary discussion
- Q2. Notice period about compnay
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in May 2024. There were 3 interview rounds.
30min online test. Easy level.
(2 Questions)
- Q1. Technical interview with core concepts
- Q2. Conceptual , core knowledge.
(1 Question)
- Q1. Managereal round
Vivek Desai
(1 Question)
- Q1. Graphql , Web workers vs Service workers
- Ans.
GraphQL is a query language for APIs, Web workers run scripts in background threads, Service workers are scripts that run in the background and can intercept network requests.
GraphQL is a query language for APIs that allows clients to request only the data they need.
Web workers run scripts in background threads separate from the main browser thread, improving performance by handling tasks concurrently.
Service workers a...
Skills evaluated in this interview
(1 Question)
- Q1. Technical related to my experience
(2 Questions)
- Q1. How are partitions assigned in Kafka?
- Ans.
Partitions in Kafka are assigned based on the number of partitions specified when creating a topic.
Partitions are assigned to brokers in a round-robin fashion.
The number of partitions should be a multiple of the number of brokers to ensure even distribution.
Reassignment of partitions can be done manually using the Kafka Reassign Partitions tool.
- Q2. Have you ever use terraform?
- Ans.
Yes, I have experience using Terraform for infrastructure as code.
I have used Terraform to provision and manage infrastructure resources in a declarative manner.
I have written Terraform configuration files to define the desired state of infrastructure components.
I have used Terraform to automate the deployment of cloud resources such as virtual machines, storage, and networking.
I have experience with Terraform modules ...
Skills evaluated in this interview
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