e-con Systems Interview Questions and Answers

Mutable data types can be modified after creation, while immutable data types cannot be changed.

• Mutable data types: lists, dictionaries, sets

• Immutable data types: strings, tuples, integers

• Example: list is mutable - myList = [1, 2, 3]; tuple is immutable - myTuple = (1, 2, 3)

To rate a customer's credibility, we consider their payment history, credit score, references, and industry reputation.

• Evaluate payment history and credit score

• Check references and past work experience

• Assess industry reputation and online presence

• Consider any legal or financial issues

• Use a scoring system or rating scale to quantify credibility

Clean code principles refer to writing code that is easy to read, understand, and maintain.

• Writing clear and descriptive variable names

• Breaking down complex functions into smaller, more manageable pieces

• Avoiding redundant or unnecessary code

• Following consistent formatting and indentation

• Writing comments to explain the purpose of the code

Customer default can be predicted based on various factors.

• Analyzing credit history and payment patterns

• Assessing financial stability and debt-to-income ratio

• Monitoring changes in employment status or income

• Identifying external factors such as economic downturns or industry changes

• Using predictive modeling and machine learning algorithms

• Working closely with collections and risk management teams

• Regularly reviewing and updating risk assessment strategies

PD stands for Probability of Default, Cumulative PD is the sum of PD over time, Marginal PD is the change in PD for a small change in time.

• PD (Probability of Default) is the likelihood that a borrower will default on a loan within a given time period.

• Cumulative PD is the sum of PD over time, representing the total probability of default by a certain point in time.

• Marginal PD is the change in PD for a small change in time, indicating how the probability of default is changing ...read more