ZeMoSo Technologies Interview Questions, Process, and Tips

Two DSA problems were given. Moderate level.

Q1. What is API gateway?, Circuit breaker pattern, Load Balancing, Java Stream API, Functional Interfaces, Design patterns.
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Q2. Default and static methods in interface?
Ans. 
Default and static methods in interface allow for method implementation and utility methods in Java interfaces.
• Default methods provide a default implementation for a method in an interface.

• Static methods in interfaces can be called directly on the interface itself.

• Default and static methods were introduced in Java 8.

• Default methods can be overridden by implementing classes.

• Static methods cannot be overridden and are no
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Q1. Project related questions. 1 Coding question.
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Q2. New technologies learnt in last 6 months.
Ans. 
React Native, GraphQL, Docker
• Learned React Native for cross-platform mobile app development

• Explored GraphQL for efficient data fetching and manipulation

• Gained knowledge in Docker for containerization and deployment
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Mcqs question based on the job profile

Q1. Basic question about the java core concepts as well as db questions were asked
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Q1. In depth question about core java concepts were asked in this round
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Q1. Salary discussion and company information was dicussed in this round
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Q1. Question related to the core java
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Q2. Feature of Java 8
Ans. 
Java 8 introduced lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to work with sequences of elements efficiently.

• Default methods allow interfaces to have methods with implementation.

• Example: List names = Ar...read more
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Q3. What is multi threading?
Ans. 
Multi threading is a programming concept where multiple threads within a process execute concurrently, allowing for better performance and responsiveness.
• Allows for parallel execution of tasks within a single process

• Improves performance by utilizing multiple CPU cores

• Can lead to synchronization issues if not handled properly

• Examples include web servers handling multiple client requests simultaneously
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Q4. How collections works internally?
Ans. 
Collections in programming languages are data structures that store and organize multiple elements.
• Collections can be implemented using various data structures such as arrays, linked lists, hash tables, and trees.

• They provide methods for adding, removing, and accessing elements efficiently.

• Examples of collections in Java include ArrayList, LinkedList, HashMap, and TreeSet.
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Q1. Questions related to the Spring framework
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Coderbyte test with MCQs and 2 Problems(One API gateway call and another medium LC question). MCQs were of mixed few technical and others aptitude.

Q1. Mostly on java/Springboot and coding
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It was a easy test with 15 MCQs

Q1. It was a good discussion. Got to learn a lot of new things.
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Q1. It had 1 coding question and 1 DB question
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