Monexo Fintech Software Developer Interview Questions and Answers

3 dsa questions medium level

Q1. 2 medium level dp questions based on string and stocks
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Q2. One hard question based on graph
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Q1. Hr questions and java , springboot questions etc
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Coding and aptitude round

Q1. Tree dsa questions
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Q1. Horse race question
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Q1. Location specific question
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Q1. Internal Implementation of HashMap
Ans. 
HashMap is implemented using an array of linked lists to handle collisions.
• HashMap stores key-value pairs in an array of linked lists

• Hash function is used to determine the index of the array where the key-value pair will be stored

• Collision handling is done by chaining, where multiple key-value pairs with the same hash value are stored in the same linked list

• HashMap allows null keys and values

• HashMap is not synchronized...read more
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Test was based on arrays and some dsa concepts.

Technical Aptitude on singalton pattern

Q1. What is man in middle attack?
Ans. 
A man-in-the-middle attack is a cyber security attack where the attacker secretly intercepts and possibly alters the communication between two parties.
• Attacker intercepts communication between two parties

• Attacker may alter the communication

• Commonly occurs in public Wi-Fi networks

• Can lead to data theft or unauthorized access
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Q2. How to protect api?
Ans. 
Protecting API involves using authentication, authorization, encryption, rate limiting, and monitoring.
• Implement authentication mechanisms such as OAuth, JWT, or API keys

• Use authorization to control access to different parts of the API

• Encrypt sensitive data using SSL/TLS

• Implement rate limiting to prevent abuse and protect against DDoS attacks

• Monitor API traffic for unusual activity and potential security threats
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Q3. Whats is csrf ?
Ans. 
CSRF stands for Cross-Site Request Forgery, a type of attack where a malicious website tricks a user into performing actions on another website without their knowledge.
• CSRF attacks exploit the trust that a site has in a user's browser, by sending unauthorized requests using the user's session.

• Prevent CSRF attacks by using tokens in forms, checking the origin of requests, and implementing proper authentication and autho...read more
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Q1. Why you want ti join airpay?
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Q2. Why you leave current organisation?
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Q1. Basic Python Questions Work Exp related discussions
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Q2. Snake and Ladder Problem
Ans. 
Snake and Ladder Problem is a classic board game where players move their tokens based on the roll of a dice.
• The game involves a board with numbered squares, where players move their tokens based on the roll of a dice.

• Snakes and ladders on the board can either help a player advance or set them back.

• The game continues until a player reaches the final square, usually 100, to win.
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Sql, power Bi basic and Reporting knowledge

Sql knowledge , use of power bi

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