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63 Moons Technologies Interview Questions and Answers
17 Interview questions
A circular linked list is a linked list where the last node points to the first node.
It is a data structure where each node points to the next node and the last node points to the first node.
It can be used to implement a round-robin scheduling algorithm.
Traversal of a circular linked list requires a condition to stop the traversal, such as reaching the starting node again.
Polymorphism is the ability of a function or method to behave differently based on the object it is called with.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).
Example: Animal class with methods eat() and sleep(). Dog and Cat classes can inherit from Animal and ove...
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not.
In the absence of a senior, I would refer to the project documentation and requirements to understand the scope of testing.
I would prioritize the testing based on criticality and risk analysis.
I would communicate with the development team to understand the changes made an...
Types of attacks include malware, phishing, DDoS, ransomware, and social engineering.
Malware attacks involve malicious software that can harm a computer system.
Phishing attacks use deceptive emails or websites to trick individuals into revealing sensitive information.
DDoS attacks overwhelm a network or server with a flood of traffic, causing it to become unavailable.
Ransomware attacks encrypt a user's files and de...
Collections are data structures that store and organize multiple elements.
Collections allow for efficient storage and retrieval of data
They provide various operations for manipulating the data, such as adding, removing, and searching for elements
Examples of collections include arrays, lists, sets, and maps
Spring MVC is a framework for building web applications using the Model-View-Controller design pattern, while Spring Boot is an opinionated framework for quickly building production-ready applications.
Spring MVC is more customizable and requires more configuration compared to Spring Boot.
Spring Boot provides a set of defaults and auto-configuration options to simplify development.
Spring Boot is ideal for microserv...
Memory management involves allocating and deallocating memory for variables and objects.
Variables can be allocated on the stack or heap depending on their scope and lifetime.
Objects can be created using new operator and must be deleted using delete operator to avoid memory leaks.
Smart pointers like unique_ptr and shared_ptr can be used to manage object memory automatically.
Memory leaks can be avoided by properly m...
63 Moons Technologies Interview Experiences
28 interviews found
Anonymous
I applied via Instahyre and was interviewed in Dec 2024. There were 4 interview rounds.
(1 Question)
- Q1. Work Ex Discussion
(1 Question)
- Q1. System Design question- Implement APIs
- Ans.
Design APIs for a scalable system to manage user data and interactions efficiently.
Define RESTful endpoints: e.g., GET /users, POST /users, PUT /users/{id}, DELETE /users/{id}.
Use JSON for data interchange to ensure compatibility across platforms.
Implement authentication and authorization: e.g., OAuth 2.0 for secure access.
Consider rate limiting to prevent abuse of the APIs.
Design for scalability: use load balancers an...
(1 Question)
- Q1. System Design question- Design DB
- Ans.
Design a database for a scalable e-commerce platform to manage products, users, and orders efficiently.
Use a relational database like PostgreSQL for structured data.
Create tables for Users, Products, Orders, and Order_Items.
Implement indexing on frequently queried fields like product name and user email.
Consider using NoSQL for unstructured data, such as user reviews.
Ensure data normalization to reduce redundancy, e.g....
(1 Question)
- Q1. System Design question- Microservices
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Tell me about Trade Life Cycle
- Ans.
The Trade Life Cycle encompasses all stages of a trade from initiation to settlement, ensuring smooth transaction processing.
1. Trade Initiation: The process begins when a trader decides to buy or sell a security.
2. Order Execution: The order is sent to the market, where it is matched with a counterparty.
3. Trade Confirmation: Both parties receive confirmation of the trade details, including price and quantity.
4. Clear...
- Q2. Derivatives , BRD, FRD, Waterfall Model, Agile Methodologies, Captial Market , Intra day,
- Q3. Write an essay based on any current incidents national level and give a suitable solution
- Ans.
The rising issue of food insecurity in the U.S. demands immediate attention and innovative solutions to ensure access to nutritious food.
Food insecurity affects millions of Americans, with 10.5% of households experiencing it in 2020.
The COVID-19 pandemic exacerbated food access issues, leading to increased reliance on food banks.
Innovative solutions include community gardens, urban farming, and partnerships with local ...
- Q4. Scenario Based Question
Interview Preparation Tips
Selected
I applied via Walk-in and was interviewed in Sep 2024. There was 1 interview round.
(2 Questions)
- Q1. HR round mandatory
- Q2. Technical round first and second
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Jun 2024. There was 1 interview round.
(3 Questions)
- Q1. Oops concepts, questions on strings and Arrays
- Q2. Abstract class and interface,
- Q3. SQL query related questions
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Oct 2024. There was 1 interview round.
(2 Questions)
- Q1. Tell me about yourself?
- Ans.
I am a dedicated Cyber Security Analyst with a passion for protecting systems and data from cyber threats.
Educational Background: I hold a degree in Cyber Security and have completed certifications like CompTIA Security+ and CEH.
Professional Experience: I have worked for two years at XYZ Corp, where I monitored network traffic and responded to security incidents.
Technical Skills: Proficient in using tools like Wireshar...
- Q2. Salary negotiation
I applied via Naukri.com and was interviewed in Jul 2024. There was 1 interview round.
(1 Question)
- Q1. Questions about background
Interview Preparation Tips
Selected
I applied via Campus Placement and was interviewed in Sep 2023. There were 3 interview rounds.
I applied in campus placement first round is aptitude test
(4 Questions)
- Q1. Ask question on oops concepts
- Q2. What ia polymorphism Pointers etc.
- Ans.
Polymorphism is the ability of a function or method to behave differently based on the object it is called with.
Polymorphism allows objects of different classes to be treated as objects of a common superclass.
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).
Example: Animal class with methods eat() and sleep(). Dog and Cat classes can inherit from Animal and override...
- Q3. Asked about academic project what is your role on these project
- Q4. Based on resume asked questions and mostly asked the oops and c++ concept
(1 Question)
- Q1. Based on resume and asked weakness ,strength
Interview Preparation Tips
Prepare for c++ and oops basic concept
Resume based questions
ronald reji
(2 Questions)
- Q1. Introduce yourself
- Ans.
Analytical thinker with a background in data analysis, passionate about leveraging insights to drive business decisions.
Educational Background: Bachelor's degree in Economics, focusing on data analysis and statistics.
Professional Experience: Worked as a data analyst intern at XYZ Corp, where I improved reporting efficiency by 30%.
Technical Skills: Proficient in SQL, Python, and Excel for data manipulation and visualiza...
- Q2. Why u want to work with 63 moons
(2 Questions)
- Q1. Types of attacks
- Ans.
Types of attacks include malware, phishing, DDoS, ransomware, and social engineering.
Malware attacks involve malicious software that can harm a computer system.
Phishing attacks use deceptive emails or websites to trick individuals into revealing sensitive information.
DDoS attacks overwhelm a network or server with a flood of traffic, causing it to become unavailable.
Ransomware attacks encrypt a user's files and demand ...
- Q2. How can they be prevented
(2 Questions)
- Q1. Trade life cycle
- Q2. Tell me about current role
(1 Question)
- Q1. Salary discussion
(2 Questions)
- Q1. Spring MVC vs Spring Boot
- Ans.
Spring MVC is a framework for building web applications using the Model-View-Controller design pattern, while Spring Boot is an opinionated framework for quickly building production-ready applications.
Spring MVC is more customizable and requires more configuration compared to Spring Boot.
Spring Boot provides a set of defaults and auto-configuration options to simplify development.
Spring Boot is ideal for microservices ...
- Q2. Collection and it's benefits
- Ans.
Collections are data structures that store and organize multiple elements.
Collections allow for efficient storage and retrieval of data
They provide various operations for manipulating the data, such as adding, removing, and searching for elements
Examples of collections include arrays, lists, sets, and maps
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63 Moons Technologies Interviews By Designations
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