Juspay Interview Questions for Technical Profiles
Juspay is a leading financial technology company, that has gained prominence in the industry due to its innovative solutions and cutting-edge payment platform. As part of their rigorous hiring process, Juspay conducts interviews to identify top talent who can contribute to their success.
To ensure a fair and comprehensive assessment, Juspay interviewers ask thought-provoking questions that go into various aspects of a candidate’s skills, experience, and problem-solving abilities. These questions are designed to evaluate an individual’s technical proficiency, adaptability to fast-paced environments, teamwork capabilities, and alignment with Juspay’s values. Some commonly asked interview questions at Juspay revolve around topics such as DSA, DBMS, OOPS, OS, and Computer Networks. By scrutinizing responses from candidates during these interviews Juspay effectively identifies individuals who possess the necessary expertise and enthusiasm to drive innovation in digital payments while maintaining a strong customer focus. This article contains some of the most important questions that would help you to land a job at Juspay.
Table of Content
- DSA Questions
- OS Questions
- DBMS Questions
- Computer Networking
- OOPS
DSA Questions
OS Questions
- What are the different types of operating systems?
- Explain the difference between kernel and shell.
- What is process management? Explain different scheduling algorithms.
- What is memory management? Discuss different memory allocation techniques.
- Explain the concept of virtual memory and its benefits.
- What are the different types of file systems? Explain their advantages and disadvantages.
- Explain the working of a disk in an operating system.
- What is deadlock? How can it be prevented or recovered from?
- Explain the concept of concurrency and how it’s handled by the OS.
- What are the different types of inter-process communication mechanisms?
- Explain the purpose and functionality of device drivers.
- Describe the boot process of an operating system.
- What are the different types of security threats to an operating system?
- Explain the concept of user management and access control in an OS.
- What are the different types of system calls and how are they handled?
- Explain the difference between multiprogramming and multitasking.
- What are the different types of resource management techniques in an OS?
- Discuss the advantages and disadvantages of monolithic and microkernel architectures.
- Explain the concept of virtualization and its applications.
- How is an operating system customized for specific needs (e.g., embedded systems)?
DBMS Questions
- Explain the ACID properties of transactions and their importance in database integrity.
- Differentiate between primary and foreign keys with examples.
- Write an SQL query to join two tables based on specific conditions.
- Optimize a slow-running SQL query by identifying and correcting bottlenecks.
- Explain the concepts of normalization and its different levels (1NF, 2NF, 3NF).
- Describe the purpose and benefits of indexing in a database.
- Compare and contrast Structured Query Language (SQL) and NoSQL databases. When would you choose one over the other?
- Explain the concept of database transactions and how they handle concurrency issues.
- Discuss different types of database views and their advantages in data security and access control.
- What database schema you will use for Juspay’s payment processing system. Explain your data model choices and how they optimize efficiency and scalability.
Computer Networking
- Name two technologies you would use to connect two offices in remote locations.
- What is internetworking?
- Explain the different types of network topologies (Bus, Star, Ring, Mesh).
- Explain the concept of subnetting and its advantages.
- Describe the working of a router and its functionalities.
- How does DHCP assign IP addresses to devices in a network?
- Difference between HTTP Post and HTTP Get Request.
- Difference between IP address and MAC address.
- What are the different types of firewalls and their purposes?
- How does NAT (Network Address Translation) work and what are its benefits?
OOPS
- Explain the concept of inheritance in object-oriented programming. Provide an example of how you would use inheritance to model different payment methods.
- Explain the role of encapsulation in OOP and its significance in securing sensitive financial data.
- What is polymorphism, and how does it enhance code flexibility and extensibility in OOP?
- Describe the principle of abstraction in OOP and its significance in software design.
- Discuss the advantages and disadvantages of using abstraction in OOP.
- What are virtual functions and how are they different from pure virtual functions?
- Explain the concept of constructors and destructors. When are they called?
- Differentiate between private, and protected access specifiers in C++.
- What is operator overloading and how can it be implemented in C++?
- Explain the concept of interfaces in object-oriented programming.