Kaleyra Interview Questions and Answers

Print a specific pattern using any programming language.

Q1. What is a class in Object-Oriented Programming (OOP)?
Ans. 
A class in OOP is a blueprint for creating objects, defining their properties and behaviors.
• Classes are templates for creating objects in OOP

• They define the properties (attributes) and behaviors (methods) of objects

• Objects are instances of classes, each with its own unique data

• Inheritance allows classes to inherit properties and behaviors from other classes

• Encapsulation ensures that the data is hidden and can only be a...read more
Answered by AI
Add your answer
Q2. What is the difference between an abstract class and an interface?
Ans. 
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have constructors, fields, and methods, while interface cannot have any implementation.

• A class can only extend one abstract class, but can implement multiple interfaces.

• Abstract classes are used to define common characteristics of subclasses, while interfaces are used to define contracts for...read more
Answered by AI
Add your answer
Q3. What is joining and creating an inner join query?
Ans. 
Joining is combining data from two or more tables based on a related column, while an inner join query retrieves only the matching records.
• Joining is used to combine data from multiple tables in a database.

• Inner join query retrieves only the records that have matching values in both tables.

• Syntax for inner join: SELECT columns FROM table1 INNER JOIN table2 ON table1.column = table2.column;

• Example: SELECT orders.order_i...read more
Answered by AI
Add your answer

Q1. OOPS concept and All Major pillars with Scanrio-based questions asked on Abstract class and Interface
Add your answer
Q2. .Net MVC and .Net Core based on program.cs file and Dependency Injection and Middleware in deep
Add your answer
Q3. Pattern question and check string Palindrome
Add your answer
Q4. SQL Queries around 4th highest salary of Employee
Add your answer
Q5. All basic programming concept checking like having prefix and postfix expression problem solving on paper
Add your answer

Q1. TechnoManagerial Round Collection question to find about number of character present in the word Mirafra with live coding F2F
Add your answer
Q2. API testing ang REST API Concept
Add your answer
Q3. Professional Journey
Add your answer
Q4. Project Details
Add your answer

Q1. It was a director round but say you need to give again technical round ,they wasted my time and money.
Add your answer
Q2. SQL Queries on pen and paper
Add your answer

Q1. What is difference between Targeting and Headhunting
Ans. 
Targeting involves identifying a specific group of candidates, while headhunting is actively seeking out and approaching top talent.
• Targeting focuses on a specific group of candidates based on criteria such as skills, experience, or industry.

• Headhunting involves actively seeking out and approaching top talent, often individuals who are not actively looking for a job.

• Targeting is more passive and relies on attracting ca...read more
Answered by AI
Add your answer
Q2. What are Backent and Frontend Technologies
Ans. 
Backend and Frontend technologies refer to the technologies used to develop the server-side and client-side of a web application, respectively.
• Backend technologies include languages like Java, Python, Ruby, and frameworks like Node.js, Django, Flask

• Frontend technologies include HTML, CSS, JavaScript, and frameworks like React, Angular, Vue.js

• Backend technologies handle server-side logic, database interactions, and API ...read more
Answered by AI
Add your answer
Q3. Difference Between LinkedIn and Recruiter
Ans. 
LinkedIn is a social networking platform for professionals, while Recruiter is a tool within LinkedIn for recruiters to find and connect with potential candidates.
• LinkedIn is a platform for professionals to network and showcase their skills and experience.

• Recruiter is a tool within LinkedIn that allows recruiters to search for and connect with potential candidates for job opportunities.

• LinkedIn is used by individuals t...read more
Answered by AI
Add your answer

Q1. C++ Concepts and classes
Add your answer

Q1. Code snippet and output
Add your answer

Q1. Managerial round and related non tech questions
Add your answer

Coding test based on leet code 1 hard(mountain array)and 1 easy(balance the parentheses)

Q1. Hiring manager round- resume based
Add your answer
Q2. Basics, puzzles like find the number that should fill in the blank etc
Add your answer

First round Aptitude + Technical questions on CS fundamentals

Q1. Frog jump Dynamic programming question
Add your answer
Q2. Remove zeroes from a numbers only string and insert at last also maintain the relative order
Ans. 
Remove zeroes from a numbers only string and insert at last while maintaining relative order.
• Iterate through the string and separate numbers and zeroes

• Store numbers in an array and zeroes in a separate array

• Concatenate the numbers array with the zeroes array at the end
Answered by AI
Add your answer
Q3. One sql question on joins
Add your answer

Q1. 1st Technical round : Difference between Epic and User story.
Ans. 
An Epic is a large body of work that can be broken down into smaller tasks called User Stories.
• Epic is a high-level requirement that is too large to be completed in a single iteration.

• User Story is a small, specific piece of work that can be completed in a single iteration.

• Epics are usually broken down into multiple User Stories for implementation.

• User Stories are more detailed and focused compared to Epics.

• Example: Ep...read more
Answered by AI
Add your answer
Q2. Test cases of Data grid.
Ans. 
Test cases for data grid involve verifying data display, sorting, filtering, pagination, editing, and deleting functionalities.
• Verify data is displayed correctly in the grid

• Test sorting functionality by sorting columns in ascending and descending order

• Test filtering functionality by applying filters and checking if data is displayed correctly

• Test pagination by navigating through multiple pages of data

• Test editing funct...read more
Answered by AI
Add your answer
Q3. How to test a website on different devices?
Ans. 
To test a website on different devices, use responsive design testing tools, emulators, physical devices, and browser developer tools.
• Use responsive design testing tools like BrowserStack or Responsinator to simulate different screen sizes.

• Utilize emulators like Android Studio's emulator or Xcode's simulator to test on various mobile devices.

• Test on physical devices to ensure accurate performance and user experience.

• Us...read more
Answered by AI
Add your answer
Q4. Have you ever meet your client.
Ans. 
Yes, I have met with clients in previous roles to discuss project requirements and gather feedback.
• I have met with clients to understand their requirements and expectations for the project.

• I have conducted meetings to gather feedback on the testing process and results.

• Building a good relationship with clients is important for successful project delivery.
Answered by AI
Add your answer

Write testcases for a profile page that has option to change: name, email, phone number, address etc.

Q1. Severity, priority, scenario based questions.
Add your answer

Q1. CEO round : general problem solving questions.
Add your answer