ZeMoSo Technologies Interview Questions, Process, and Tips

2 Coding questions and Java & Spring Boot MCQs
Coding questions were on Arrays, File System in Java.

Q1. Convert a String into sub-strings based on the number of given rows in a zig-zag pattern and display as a single string P A H N I/P: "paypalishiring...read more
Ans. 
Convert a given string into sub-strings based on the number of rows in a zig-zag pattern and display as a single string.
• Create an array of strings with the number of rows specified

• Iterate through the input string and distribute characters in a zig-zag pattern

• Concatenate the sub-strings row by row to form the final output string
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Q1. Count the continuous unique character from given string "aaaaBbbbCDEaAb", O/P: a4 B4 C1 D1 E1 a2 b2
Ans. 
Count the continuous unique characters in a given string.
• Iterate through the string and keep track of the current character and its count

• If the current character is different from the previous one, print the count and reset it

• Handle both uppercase and lowercase characters separately
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Coding test will be conducted on CoderByte platform , where we will be given two question one is a backend challenge and other question on DSA , dynamic programming.

Q1. Given an integer array , and a target k , we need to find the pair of elements from array whose sum will be equal to target k.
Ans. 
Find pair of elements in array whose sum is equal to target k.
• Use a hashmap to store the difference between target k and each element in the array.

• Iterate through the array and check if the current element's complement exists in the hashmap.

• Return the indices of the pair that sums up to target k.
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Q2. Asked about OAuth and JWT
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Q3. Actuator in spring boot and what are the actuator endpoints
Ans. 
Actuator in Spring Boot provides production-ready features like monitoring and metrics.
• Actuator is a set of tools provided by Spring Boot to monitor and manage your application.

• Actuator endpoints are URLs that provide information about your application, such as health, metrics, info, etc.

• Examples of actuator endpoints include /actuator/health, /actuator/metrics, /actuator/info, etc.
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Q4. Design pattern of microservices architecture
Ans. 
Microservices architecture is a design pattern where an application is composed of small, independent services that communicate over well-defined APIs.
• Each microservice is responsible for a specific business function or capability

• Services are loosely coupled and can be developed, deployed, and scaled independently

• Communication between services is typically done through lightweight protocols like HTTP or messaging queue...read more
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Q1. Given an input string "aaabbCCaaDD" , O/p : a3b2C2a2D2 , we need to find the frequency of subsequent characters.
Ans. 
The task is to find the frequency of subsequent characters in a given input string.
• Iterate through the input string while keeping track of the current character and its frequency.

• If the current character is the same as the previous character, increment the frequency count.

• If the current character is different, append the previous character and its frequency to the output string.

• Repeat until the end of the input string
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Q2. Branching strategies in Agile methodologies
Ans. 
Branching strategies in Agile methodologies involve creating separate branches for different features or tasks to enable parallel development.
• Feature branching: Each feature or user story is developed in a separate branch, allowing for isolation and independent testing.

• Release branching: A branch is created for each release, enabling bug fixes and maintenance to be done separately from ongoing development.

• Task branchin...read more
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Q3. Questions on NoSQL and MySQL
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Q4. Questions on Springboot and Microservices
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Platform used for coding test is good and you need to prepare DSA properly to crack

DSA coding and question related to technology

DSA coding and question related to technology

Q1. React working and hooks
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Q2. System Design of hotel mgmt
Ans. 
System design for hotel management including booking, check-in/out, room allocation, and payment processing.
• Use a database to store information about rooms, bookings, guests, and payments.

• Implement a booking system that allows guests to search for available rooms based on dates and preferences.

• Include a check-in/out process that updates room availability and guest information.

• Design a room allocation algorithm to optim...read more
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Q3. Ode working and its functionalities
Ans. 
Code working and its functionalities
• Code working refers to the process of writing, compiling, and executing code to achieve a desired outcome

• Functionalities of code include data manipulation, logic implementation, and interaction with external systems

• Examples of code working functionalities include sorting algorithms, database queries, and user interface design
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It had 2 DSA problems along with MCQs on Java, Maths etc...

Q1. DSA, Core Java, Spring boot
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Q1. Again DSA, SQL queries, Core java and Spring boot questions
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Q1. DSA, Multi-threading questions, SQL queries
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Q1. Basic HR questions and salary discussion
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