HCLTech Graduate Engineer Interview Questions and Answers for Freshers

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 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.

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