40+ Interview Questions and Answers

To collect NPA payment when customer contact is missing, utilize various methods such as skip tracing, contacting references, using social media, and legal actions if necessary.

• Perform skip tracing to locate the customer's current contact information.

• Contact references provided by the customer to gather any updated contact details.

• Utilize social media platforms to search for the customer and attempt to establish contact.

• Send written communication to the customer's last known ...read more

Design a system to handle 10 lacs transactions per second.

• Use distributed systems and load balancing to handle the high volume of transactions.

• Implement caching mechanisms to reduce database load.

• Use high-performance hardware and optimize code for speed.

• Consider using a NoSQL database for faster read/write operations.

• Implement fault-tolerant mechanisms to ensure system reliability.

• Use asynchronous processing to handle requests quickly.

• Consider using a message queue to handle ...read more

To exploit/test for vulnerabilities, use penetration testing tools and techniques to simulate attacks and identify weaknesses.

• Use vulnerability scanners to identify potential vulnerabilities

• Conduct penetration testing to simulate attacks and identify weaknesses

• Perform social engineering tests to assess human vulnerabilities

• Use fuzzing techniques to identify software vulnerabilities

• Conduct code reviews to identify potential vulnerabilities

• Test for security misconfigurations

• Use...read more

Create a custom hashmap with OOPs concepts

• Create a class for the hashmap with private variables for key and value

• Implement methods for adding, removing and retrieving elements

• Use inheritance to create a separate class for each type of data to be stored

• Use encapsulation to protect the data and ensure proper access

• Use polymorphism to allow for different types of data to be stored in the same hashmap

The bridge between SwiftUI and UIKit is represented by the UIViewRepresentable and UIViewControllerRepresentable protocols.

• UIViewRepresentable and UIViewControllerRepresentable protocols allow SwiftUI views to interact with UIKit views and controllers respectively.

• UIViewRepresentable is used to wrap a UIKit view and make it available to SwiftUI.

• UIViewControllerRepresentable is used to wrap a UIKit view controller and make it available to SwiftUI.

• These protocols enable develop...read more

I implement training programs, provide resources, set clear goals, and offer regular feedback to enhance caller productivity.

• Implementing training programs to improve skills and knowledge

• Providing resources such as tools and technology to streamline processes

• Setting clear goals and expectations for callers to work towards

• Offering regular feedback and coaching to help callers improve performance

Explain the importance of paying the amount and address any concerns the customer may have.

• Explain the reasons for the amount owed (e.g. services provided, products purchased)

• Discuss the consequences of not paying the amount (e.g. late fees, credit score impact)

• Offer solutions or payment plans to help the customer meet their financial obligations

• Listen to the customer's concerns and try to find a mutually beneficial resolution

Increasing caller productivity through training, motivation, and efficient tools.

• Provide comprehensive training on product knowledge and communication skills

• Implement performance incentives to motivate callers to meet and exceed targets

• Utilize efficient call center software and tools to streamline processes and improve efficiency

There are designated initializers in Swift that have specific behaviors, such as convenience init and required init.

• Designated initializers are primary initializers for a class and must call a designated initializer from its superclass.

• Convenience initializers are secondary initializers that must call another initializer in the same class.

• Required initializers must be implemented by all subclasses of a class.

SSRF is an attack that allows an attacker to send a crafted request from a vulnerable web application. CSRF is an attack that tricks a victim into performing an action on a website without their knowledge or consent.

• SSRF stands for Server-Side Request Forgery while CSRF stands for Cross-Site Request Forgery.

• SSRF allows an attacker to send a request from a vulnerable server to a third-party server while CSRF tricks a victim into performing an action on a website.

• SSRF can be us...read more

To reduce idle percentage, focus on optimizing workflow, improving communication, setting clear goals, and monitoring performance.

• Optimize workflow by identifying and eliminating bottlenecks or inefficiencies.

• Improve communication among team members to ensure tasks are being completed efficiently.

• Set clear goals and expectations for employees to keep them focused and motivated.

• Monitor performance regularly to identify areas for improvement and provide feedback.

• Implement time ...read more

I am a highly qualified and experienced professional who can provide convenience to merchants through my expertise and skills.

• Qualifications: MBA in Marketing, Certified Fintech Professional

• Experience: 10+ years in sales and marketing, 5+ years in fintech industry

• Convenience to merchant: By offering personalized solutions, optimizing processes, and providing excellent customer service

• Example: Implementing a new POS system to streamline transactions and improve efficiency

Delegate pattern is a design pattern in which an object delegates some of its responsibilities to another object.

• Create a protocol defining the methods that the delegate should implement

• Declare a delegate property in the delegating class

• Set the delegate property to the object that will act as the delegate

• Call the delegate methods from the delegating class

Rate limiter is a system that controls the rate of traffic sent or received by a network interface.

• Implement a token bucket algorithm to track and limit the rate of requests

• Use a sliding window algorithm to track the number of requests within a specific time frame

• Consider using a distributed rate limiter for scalability and fault tolerance

Design a framework for exception handling in a LRU Cache system

• Implement try-catch blocks to handle exceptions

• Use specific exception classes for different types of errors

• Consider using logging mechanisms to track and debug exceptions

• Implement a global exception handler to catch unhandled exceptions

Experience in developing products from ideation to launch

• Identifying market needs and opportunities

• Creating a product roadmap and strategy

• Leading cross-functional teams in product development

• Iterating on prototypes based on user feedback

• Launching and scaling the product successfully

Messaging queue system similar to Kafka for real-time data processing and streaming

• Kafka is a distributed streaming platform capable of handling high volumes of data in real-time

• It uses topics to organize data streams and partitions for scalability

• Producers publish messages to topics and consumers subscribe to topics to receive messages

• Kafka provides fault tolerance, scalability, and high throughput for data processing

• Example: Apache Kafka, Amazon Kinesis, Google Cloud Pub/Su...read more

Improve Chrome browser by optimizing performance, enhancing security, and adding new features.

• Optimize memory usage to improve performance

• Enhance security by regularly updating security protocols

• Add new features like built-in ad blocker or improved tab management

• Improve compatibility with web standards and technologies