Loyalty Juggernaut Backend Developer Interview Questions and Answers

Normal java coding question

Q1. What are spring ioc
Ans. 
Spring IoC (Inversion of Control) is a design pattern where the control of object creation and lifecycle is shifted to a container or framework.
• In Spring IoC, objects are created and managed by the Spring container.

• It helps in achieving loose coupling between classes.

• Dependency Injection is a key feature of Spring IoC, where dependencies of a class are injected by the container.

• Example: @Autowired annotation in Spring ...read more
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Q2. Different implementation of map interface
Ans. 
The Map interface in Java provides a way to store key-value pairs and retrieve values based on keys.
• Different implementations of the Map interface include HashMap, TreeMap, LinkedHashMap, and ConcurrentHashMap.

• HashMap provides constant-time performance for basic operations but does not guarantee the order of elements.

• TreeMap maintains elements in sorted order based on keys.

• LinkedHashMap maintains the insertion order of...read more
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Q1. Could you provide an in-depth discussion about your current project?
Ans. 
Currently, I am working on a scalable microservices architecture for an e-commerce platform.
• Utilized Node.js and Express for building RESTful APIs, ensuring efficient data handling.

• Implemented Docker for containerization, allowing seamless deployment across different environments.

• Integrated MongoDB for a NoSQL database solution, optimizing data retrieval and storage.

• Employed RabbitMQ for message queuing, enhancing comm...read more
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Q2. What occurs behind the scenes when a URL is entered into a browser?
Ans. 
Entering a URL triggers a series of network and server interactions to retrieve and display the requested web page.
• 1. DNS Resolution: The browser checks the URL and queries a DNS server to translate the domain name into an IP address.

• 2. TCP Connection: A TCP connection is established with the server using the IP address, typically over port 80 (HTTP) or 443 (HTTPS).

• 3. HTTP Request: The browser sends an HTTP request to ...read more
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Good technical round, you can manage, mainly Java questions used to come

Q1. HR round is also good package discussion will happen
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Q2. Company personal so kept secret
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