HCLTech Lead Engineer Interview Questions, Process, and Tips

Problem related to ds and algorithms

Q1. Project specific deep dived on internal of project
Add your answer
Q2. How to handle the customized exception
Ans. 
Customized exceptions can be handled by creating a custom exception class and handling it using try-catch blocks.
• Create a custom exception class that extends the Exception class

• Throw the custom exception using the throw keyword

• Handle the custom exception using try-catch blocks

• Provide meaningful error messages in the custom exception class

• Use logging to track the occurrence of the custom exception
Answered by AI
Add your answer
Q3. Internal working of hash map
Ans. 
A hash map is a data structure that stores key-value pairs using a hash function to map keys to indices in an array.
• Hash function is used to generate an index for the key in the array

• Collisions can occur when two keys map to the same index

• Collision resolution techniques include chaining and open addressing

• HashMap in Java is an implementation of a hash map
Answered by AI
Add your answer
Q4. Code based snipet for stream api which includes grouping by Example extract the no of employee on the basis of gender from the employee list
Add your answer

Q1. Cad test was conducted for casting components
Add your answer
Q2. Piston model was provided
Add your answer

Q1. Gd&t, About myself, Casting allowance, casting types, sheet metal basics
Add your answer

Q1. Current ctc, expected ctc
Add your answer

Q1. Different between fetch and axios
Ans. 
Fetch is a built-in web API in JavaScript for making HTTP requests, while Axios is a popular third-party library for the same purpose.
• Fetch is built into the browser, while Axios is a standalone library.

• Axios has built-in support for handling request and response interceptors.

• Fetch uses Promises for handling responses, while Axios uses Promises as well but also supports async/await syntax.

• Axios has better error handlin
Answered by AI
Add your answer
Q2. Describe MVC in Rails
Ans. 
MVC in Rails is a software design pattern that separates the application into three main components: Model, View, and Controller.
• Model: Represents the data and business logic of the application

• View: Represents the user interface of the application

• Controller: Handles user input, interacts with the model, and updates the view

• Example: In a Rails application, a User model would handle user data, a Profile view would displa...read more
Answered by AI
Add your answer

Some technical questions on C, linux and data structure

Q1. Linked list, memory allocation, data types.
Add your answer
Q2. Oops concept, encapsulation, Template, STL
Add your answer

Q1. Stress Strain diagram for steel and aluminium
Ans. 
Stress strain diagrams show the relationship between stress and strain in materials like steel and aluminum.
• Stress strain diagrams for steel typically show a linear elastic region followed by a plastic region before failure.

• Aluminum stress strain diagrams may exhibit more ductility compared to steel.

• The ultimate tensile strength and yield strength can be determined from these diagrams for both materials.
Answered by AI
Add your answer
Q2. Sheet metal selection criteria, things to be considered for sheet metal design
Add your answer
Q3. Questios about previous experience and projects
Add your answer
Q4. Geometric dimensions and tolerance
Add your answer

No coding test. Only technical interviews

Q1. Salary expectation
Add your answer
Q2. Previous experience
Add your answer