TechMojo Solutions Major Incident Manager Interview Questions and Answers

Q1. What is difference between controller and rest controller
Ans. 
Controller is a general term for a component that handles user requests, while a REST controller specifically handles RESTful requests.
• Controller is a general term for a component that handles user requests in a web application

• REST controller specifically handles RESTful requests, following the principles of REST architecture

• REST controller typically returns data in JSON or XML format, while a regular controller may re
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Q2. Coding question to print highest salary of a employee
Ans. 
Print highest salary of an employee using coding
• Create an array of employee salaries

• Sort the array in descending order

• Print the first element of the sorted array as the highest salary
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Q3. Java 8 features
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Q4. What is jwt token
Ans. 
JWT token is a JSON web token used for securely transmitting information between parties as a compact and self-contained way.
• JWT stands for JSON Web Token

• It consists of three parts: header, payload, and signature

• It is commonly used for authentication and information exchange in web development
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Q5. Microservice how to interact with other microservice
Ans. 
Microservices interact with each other through APIs, messaging queues, or event-driven architecture.
• Use RESTful APIs for synchronous communication between microservices

• Implement messaging queues like RabbitMQ or Kafka for asynchronous communication

• Leverage event-driven architecture with tools like Apache Kafka or AWS SNS/SQS

• Consider using service mesh like Istio for managing communication between microservices
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Round duration - 140 minutes
Round difficulty - Medium

Test timing was at 2:00 pm , it was conducted in a college and the environment was good for the test. Camera was a primary part of test, so no suspicious activity.

Q1. 
Sum of Two Numbers Represented as Arrays
Given two numbers in the form of two arrays where each element of the array represents a digit, calculate the sum of these two numbers and return this sum as an ar...read more
Ans. 
Given two numbers represented as arrays, calculate their sum and return the result as an array.
• Iterate through the arrays from right to left, adding digits and carrying over if necessary

• Handle cases where one array is longer than the other by considering the remaining digits

• Ensure the final sum array does not have any leading zeros
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Round duration - 20 minutes
Round difficulty - Easy

The round was conducted at around 12 p.m. I was called at the college location and then it was conducted. The interviewer was quite polite and frank.

Round duration - 8 minutes
Round difficulty - Easy

This round was conducted right after finishing and clearing the technical round at the same place and on the same day.