Larsen & Toubro Limited Data Engineer Interview Questions and Answers

A decision tree is a flowchart-like structure in which each internal node represents a test on an attribute, each branch represents the outcome of the test, and each leaf node represents a class label.

• Decision trees are a popular machine learning algorithm used for classification and regression tasks.

• They are easy to interpret and visualize, making them useful for understanding the decision-making process.

• Each internal...read more

Model evaluation metrics are used to assess the performance of machine learning models.

• Model evaluation metrics help in determining how well a model is performing in terms of accuracy, precision, recall, F1 score, etc.

• Common evaluation metrics include accuracy, precision, recall, F1 score, ROC-AUC, confusion matrix, and mean squared error.

• These metrics help in comparing different models and selecting the best one for a...read more

I am impressed by the company's commitment to innovation and data-driven decision making.

• I admire the company's reputation for using cutting-edge technology in data analysis.

• I am excited about the opportunity to work with a talented team of data analysts.

• I believe my skills and experience align well with the company's goals and values.

I have a strong background in data analysis, excellent problem-solving skills, and a passion for utilizing data to drive business decisions.

• I have a Bachelor's degree in Statistics and experience working with various data analysis tools such as Python, R, and SQL.

• I have a proven track record of successfully analyzing complex data sets and providing actionable insights to stakeholders.

• I am detail-oriented, organized, an...read more

Absolute xpath specifies the complete path from the root element to the desired element, while relative xpath starts from the current node.

• Absolute xpath starts with a single forward slash (/) and is more specific.

• Relative xpath starts with a double forward slash (//) and is more flexible.

• Absolute xpath is prone to breakage if the structure of the page changes.

• Relative xpath is easier to maintain as it adapts to change...read more

Push and fetch are two common operations used in software development and version control systems.

• Push refers to the action of sending local changes to a remote repository.

• Fetch refers to the action of retrieving the latest changes from a remote repository.

• Push and fetch are commonly used in Git, a popular version control system.

• Pushing changes allows others to access and review your code.

• Fetching changes ensures that ...read more