10+ HCLTech Graduate Engineer Interview Questions and Answers

Replace few letters before @ in email id with star and print the email id.

• Identify the position of @ in the email address

• Replace few letters before @ with *

• Print the modified email id

Python has libraries like SQLAlchemy, psycopg2 for database connectivity. Use these libraries to connect Python with databases.

• Use SQLAlchemy library for ORM (Object Relational Mapping) to interact with databases.

• Use psycopg2 library for direct interaction with PostgreSQL database.

• Install the required libraries using pip install .

• Establish connection to the database using appropriate credentials.

• Execute SQL queries using Python code to interact with the database.

I am proficient in 5 coding languages including Java, Python, C++, HTML, and CSS.

• Java

• Python

• C++

• HTML

• CSS

I successfully designed and implemented a new software system for optimizing energy consumption in buildings.

• Researched current energy consumption trends in buildings

• Developed algorithms to analyze and optimize energy usage

• Implemented software system using Python and SQL

• Conducted testing and validation to ensure accuracy

• Resulted in 20% reduction in energy consumption in test buildings

Program to print even numbers

• Use a loop to iterate through numbers

• Check if each number is even using modulo operator

• Print the even numbers

The port number of HTTP is 80.

• The default port number for HTTP is 80.

• Port 80 is used for unencrypted communication over HTTP.

• Port 443 is used for encrypted communication over HTTPS.

I am proficient in Java, Python, and C++.

• Java

• Python

• C++

Technical skills are abilities and knowledge needed to perform specific tasks in a technical field.

• Technical skills are practical skills that are gained through training, education, and experience.

• They are specific to a particular job or industry, such as programming, engineering, or data analysis.

• Examples of technical skills include coding, software development, mechanical design, and troubleshooting.

• Technical skills are essential for success in technical roles and are often...read more

Cloud computing is the delivery of computing services over the internet, including storage, servers, databases, networking, software, and more.

• Cloud computing allows users to access and use resources on-demand without the need for physical infrastructure.

• Examples of cloud computing services include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.

• Cloud computing offers scalability, flexibility, cost-effectiveness, and increased collaboration and productiv...read more

The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.

• Initialize an array to store the Fibonacci series

• Set the first two numbers in the series as 0 and 1

• Use a loop to calculate the next numbers by adding the previous two numbers

• Continue the loop until reaching the desired length of the series