Onward Technologies Inc K2 Developer Interview Questions, Process, and Tips

Q1. Given an array of non-negative integers.Find the length of the longest subsequence such that elements in the subsequence are contiguous integers. The consecutive numbers can be in any order. Example n=7 nu...read more
Ans. 
Find the length of the longest subsequence of contiguous integers in an array.
• Sort the array

• Iterate through the array and check for consecutive integers

• Keep track of the longest subsequence found
Answered by AI
Add your answer
Q2. Get list of pincodes from these objects Employee{ id Long, name String, Addresses : List
} Addresses{ houseNo long, pindcode long, state String, country String, } Ans. Use flatMap to flatten and then use m...read more
Ans. 
Use flatMap and map to extract list of pincodes from Employee objects
• Use flatMap to flatten the list of Addresses in each Employee object

• Use map to iterate over the flattened list and extract the pincodes

• Example: employeeList.stream().flatMap(emp -> emp.getAddresses().stream()).map(address -> address.getPincode()).collect(Collectors.toList())
Answered by AI
Add your answer
Q3. What is Database Pooling, Hikari and its configurations. Java 8 to current enchancements and current java version Factory and Builder design patterns to explain and code Project expalantion and details, Cr...read more
Ans. 
Database pooling is a technique used to manage a pool of database connections for efficient resource utilization. HikariCP is a popular database connection pooling library in Java.
• HikariCP is a high-performance database connection pooling library for Java applications.

• It is known for its low latency and high throughput.

• Configurations for HikariCP include settings such as maximum pool size, connection timeout, and idle ...read more
Answered by AI
Add your answer

Q1. What is LMS ?
Ans. 
LMS stands for Learning Management System, a software application for the administration, documentation, tracking, reporting, and delivery of educational courses or training programs.
• LMS helps organizations deliver online courses and training programs to employees or students.

• It allows for the creation and management of courses, assessments, and learning materials.

• LMS can track learner progress, generate reports, and p...read more
Answered by AI
Add your answer
Q2. What is shadow DOM
Ans. 
Shadow DOM is a way to encapsulate the styling and structure of a web component, preventing styles from leaking out or clashing with the rest of the page.
• Shadow DOM allows for creating self-contained components with their own styles and markup

• It helps in preventing styles from the main document affecting the component and vice versa

• Shadow DOM can be created using the 'shadowRoot' property of an element
Answered by AI
Add your answer

Q1. What all exceptions you know ?
Ans. 
Some common exceptions in Salesforce development include DMLException, QueryException, and LimitException.
• DMLException: Thrown when an error occurs while performing DML operations like insert, update, delete.

• QueryException: Thrown when an error occurs while querying data from the database.

• LimitException: Thrown when governor limits are exceeded, such as SOQL query limit or CPU time limit.
Answered by AI
Add your answer
Q2. Have you worked on integration ?
Ans. 
Yes, I have worked on integration in Salesforce development.
• I have experience integrating Salesforce with external systems using REST and SOAP APIs.

• I have worked on integrating Salesforce with third-party applications like MailChimp and DocuSign.

• I have implemented custom integrations using tools like Salesforce Connect and MuleSoft.

• I have experience with data mapping, transformation, and synchronization during integrat
Answered by AI
Add your answer

Q1. Why governor limits ?
Ans. 
Governor limits are in place to ensure efficient use of resources and prevent abuse in Salesforce platform.
• Governor limits help in maintaining system performance and preventing monopolization of resources.

• They ensure fair usage of resources among all users on the platform.

• Examples include limits on number of records retrieved in a single query, number of SOQL queries executed, and CPU time consumed.

• Governor limits also...read more
Answered by AI
Add your answer
Q2. What is challenge you faced ?
Ans. 
One challenge I faced was integrating a third-party API with Salesforce.
• Had to understand the API documentation thoroughly

• Encountered compatibility issues with Salesforce platform

• Implemented custom code to bridge the gap between API and Salesforce
Answered by AI
Add your answer

Test will be in hacker rank there would be a difficulty level between easy to medium

Q1. Question will be from data structure and easy to medium level of the programming laanguage question
Add your answer

Q1. This is just to check your english ability
Add your answer

Q1. Context api, js related qstns, simple programming qstn,
Add your answer
Q2. Remove duplicates without using set.
Ans. 
Remove duplicates from array of strings without using set.
• Iterate through the array and compare each element with all other elements to find duplicates.

• Create a new array and add elements only if they are not already present in the new array.
Answered by AI
Add your answer

Q1. Basic Java Question
Add your answer
Q2. Spring Boot related questions
Add your answer

Q1. Design a rest API and code it.
Ans. 
Design and code a REST API for a software developer interview.
• Define the endpoints and HTTP methods for the API (e.g. GET /users, POST /users)

• Implement authentication and authorization mechanisms (e.g. JWT tokens)

• Use proper status codes for responses (e.g. 200 OK, 401 Unauthorized)

• Include error handling and validation for input data

• Document the API using tools like Swagger or OpenAPI
Answered by AI
Add your answer
Q2. Questions related to JPA HIBERNATE SQL
Add your answer

Q1. Discussion related to Last company Project and architecture level questions
Add your answer
Q2. Write code to calculate frequency of a word using Stream API and lambda expressions
Ans. 
Calculate word frequency using Stream API and lambda expressions
• Use Stream API to convert array of strings to stream

• Use Collectors.groupingBy to group words by their frequency

• Use Collectors.counting to count the occurrences of each word
Answered by AI
Add your answer

20 aptitude,20 comunication,4 program questions

General topics . topics about online class vs office line class

Q1. In this round also they mainly check communication.after that basic questions about the what you put on your resume
Add your answer

Q1. General round. In this round they told about the company and bond
Add your answer

Q1. Looker developer
Add your answer
Q2. Sql server
Add your answer

Q1. Looker developer
Add your answer
Q2. Sql server
Add your answer

Q1. Explain Sonarqube, different type of code smells, and how its implemented in CI CD
Ans. 
Sonarqube is a static code analysis tool used to detect code smells and bugs in code. It is integrated into CI/CD pipelines for continuous code quality checks.
• Sonarqube is a static code analysis tool that identifies code smells, bugs, and security vulnerabilities in code.

• Code smells are common programming issues that may indicate a deeper problem in the code. Examples include duplicated code, long methods, and complex ...read more
Answered by AI
Add your answer
Q2. Write a program to find the numbers divisble by 3 in a string - and reverse its indexes eg : - input : String s = "123456789" output String s = "129456783"
Ans. 
Program to find numbers divisible by 3 in a string and reverse their indexes.
• Iterate through the string and check if each character is a number divisible by 3.

• Store the divisible numbers in an array and reverse their indexes.

• Join the array back into a string and return the result.
Answered by AI
Add your answer