Techwave Consulting Team Lead Interview Questions and Answers

I was asked 2 programming questions.

Q1. Scenario based question. What if someone creates new user with 1st name and last name but backend developer forgot to write code to store last name. How will data be corrected.
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Q1. Explain random forest
Ans. 
Random forest is an ensemble learning method that builds multiple decision trees and merges them to improve accuracy and prevent overfitting.
• Random forest is a type of ensemble learning method.

• It builds multiple decision trees during training.

• Each tree is built using a subset of the training data and a random subset of features.

• The final prediction is made by averaging the predictions of all the individual trees.

• Random...read more
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Q2. What is boosting
Ans. 
Boosting is a machine learning ensemble technique where multiple weak learners are combined to create a strong learner.
• Boosting is an iterative process where each weak learner is trained based on the errors of the previous learners.

• Examples of boosting algorithms include AdaBoost, Gradient Boosting, and XGBoost.

• Boosting is used to improve the accuracy of models and reduce bias and variance.
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Mcq tests on java ,springboot and data base concepts

Q1. Techno managerial round on last project worked.Discussion about project you are going to work.
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Q1. Telephonic basic questions were asked about Java related technologies.
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Q1. Skill based questions as scenario based coding questions were asked. Not hard , average level. Here the focus is more towards your retention pawer rather than your understanding. Prepare java 8 features we...read more
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Q1. Normal stuff about our willingness to contribute and attitude.
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Q1. This happens after you join the company weird right? but it is okay to hire beforehand..
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Q1. API architectures
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Q1. What do you understand by Mutual funds?
Ans. 
Mutual funds are investment vehicles that pool money from multiple investors to invest in a diversified portfolio of securities.
• Mutual funds are managed by professional fund managers who make investment decisions on behalf of the investors.

• Investors can buy shares of mutual funds, which represent their ownership in the fund's portfolio.

• Mutual funds offer diversification, liquidity, and professional management to invest...read more
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Q2. General rules of accounting?
Ans. 
General rules of accounting include consistency, relevance, reliability, and comparability.
• Consistency: Accounting methods should be applied consistently from one period to another.

• Relevance: Financial information should be relevant to the decision-making needs of users.

• Reliability: Financial information should be reliable and free from bias or error.

• Comparability: Financial information should be comparable across diff...read more
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Q3. Understanding of investment banking?
Ans. 
Investment banking involves providing financial services to corporations, governments, and other institutions, including raising capital, mergers and acquisitions, and advisory services.
• Facilitates capital raising for corporations through issuing stocks and bonds

• Assists in mergers and acquisitions by advising on deals and facilitating transactions

• Provides financial advisory services to clients on various strategic matt...read more
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Q4. General question about experience/family/yourself.
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Some mcq questions and coding question. Both where easy to medium level. Prepare combination/permutation/Time complexity etc

A question related to Binary search and some other follow ups.