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KONE Full Stack Developer Interview Questions and Answers

Updated 22 Jun 2024

KONE Full Stack Developer Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed in May 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

It was a written round consists of Apti, coding and Verbal, cognitive.

Round 2 - Technical 

(3 Questions)

  • Q1. What is the features of Java and difference between JDK, JVM, JRE?
  • Ans. 

    Java is a popular programming language known for its features like platform independence, object-oriented programming, and automatic memory management.

    • JDK (Java Development Kit) is a software development kit used for developing Java applications. It includes JRE, compiler, debugger, and other tools.

    • JVM (Java Virtual Machine) is an abstract machine that provides a runtime environment for Java bytecode to be executed. It...

  • Answered by AI
  • Q2. Cocept of Inheritance
  • Ans. 

    Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.

    • Inheritance allows for code reusability by creating a new class that is based on an existing class.

    • The new class, known as the subclass or derived class, inherits attributes and methods from the parent class, known as the superclass or base class.

    • Subclasses can also add new attributes or methods, o...

  • Answered by AI
  • Q3. And Many more questions related to JAVA, DSA, and React,Js
Round 3 - One-on-one 

(1 Question)

  • Q1. React js related questions and Javascript
Round 4 - HR 

(1 Question)

  • Q1. Family Background , relocation

Interview Preparation Tips

Topics to prepare for KONE Full Stack Developer interview:
  • Java
  • React.Js
  • DSA
  • Node.Js
  • Javascript
Interview preparation tips for other job seekers - Prepare well in React and DSA.

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - Aptitude Test 

Aptitude test, quant, grammer, logical

Round 1 - Aptitude Test 

Related to logical,verbal

Round 2 - Technical 

(1 Question)

  • Q1. Related to coding,basic programming questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Be well prepared with anything so that u will hv more confidence
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Explain the differences between SQL joins (Inner, Left, Right and Full join)
  • Ans. 

    SQL joins (Inner, Left, Right, Full) are used to combine rows from two or more tables based on a related column between them.

    • Inner join: Returns rows when there is at least one match in both tables.

    • Left join: Returns all rows from the left table and the matched rows from the right table.

    • Right join: Returns all rows from the right table and the matched rows from the left table.

    • Full join: Returns rows when there is a mat

  • Answered by AI

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
No response

I applied via Naukri.com and was interviewed in Nov 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. OOPS concepts like encapsulation, abstraction
  • Q2. Code to print most repeated in array
  • Ans. 

    Code to print most repeated string in array

    • Iterate through array and count occurrences of each string

    • Store counts in a dictionary

    • Find the string with the highest count

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basic coding questions with normal project stack

Skills evaluated in this interview

I applied via Referral and was interviewed before Jul 2021. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Aptitude Test 

Quantitative Aptitude, Numerical Ability, Synonym etc

Round 3 - Technical 

(1 Question)

  • Q1. Introduce yourself Where you did Training? What was your academic project? Guide? What do you like? Tractor or Implement? What is your aim?

Interview Preparation Tips

Interview preparation tips for other job seekers - Confidence, presence of mind should be there
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Referral and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

There were 4 sections and first one was quant, second one was logical, third was English and finally 3 coding questions in last section

Round 2 - Coding Test 

4 codes and 5 technical questions

Round 3 - One-on-one 

(3 Questions)

  • Q1. Explain multi threading
  • Ans. 

    Multi threading is the ability of a CPU to execute multiple threads concurrently.

    • Allows for parallel execution of tasks, improving performance

    • Each thread has its own stack and runs independently

    • Threads can communicate and synchronize using shared memory

    • Examples: running multiple tasks simultaneously in a web server, processing data in parallel

  • Answered by AI
  • Q2. What is polymorphism
  • Ans. 

    Polymorphism is the ability of a single function or method to operate on different types of data.

    • Polymorphism allows objects of different classes to be treated as objects of a common superclass.

    • It enables a single interface to be used for different data types.

    • Examples include method overloading and method overriding in object-oriented programming.

  • Answered by AI
  • Q3. Diff b/w inner and outer joins
  • Ans. 

    Inner join returns only the rows that have matching values in both tables, while outer join returns all rows from both tables.

    • Inner join: returns rows with matching values in both tables

    • Outer join: returns all rows from both tables, with NULL values where there is no match

    • Example: Inner join - SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

    • Example: Outer join - SELECT * FROM table1 LEFT OUTER JOIN table

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Hitachi Intern interview:
  • Java
  • Web Technologies
  • Threads
  • OOPS
Interview preparation tips for other job seekers - Easy interview and all questions will be asked from your resume. Difficulty would be mainly depend on interviewer. Apart from technical few behavioral questions were asked.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Group Discussion 

The GD was good they give you current topic and questions related to that

Round 2 - Technical 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. What is role and responsibilities of leader

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
-
Round 1 - Group Discussion 

Topic given you need to stand out

Round 2 - Case Study 

Case study given regarding marketing opportunity

Round 3 - One-on-one 

(1 Question)

  • Q1. Interview taken

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare and go for interview, practice is important
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Aug 2023. There were 2 interview rounds.

Round 1 - Aptitude Test 

The test was good and the difficulty level was above average.

Round 2 - Coding Test 

They have asked me three number of coding questions which I had answered very well.

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KONE Interview FAQs

How many rounds are there in KONE Full Stack Developer interview?
KONE interview process usually has 4 rounds. The most common rounds in the KONE interview process are Aptitude Test, Technical and One-on-one Round.
How to prepare for KONE Full Stack Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at KONE. The most common topics and skills that interviewers at KONE expect are AWS, Java, React.Js, Microservices and Javascript.
What are the top questions asked in KONE Full Stack Developer interview?

Some of the top questions asked at the KONE Full Stack Developer interview -

  1. What is the features of Java and difference between JDK, JVM, J...read more
  2. Cocept of Inherita...read more
  3. And Many more questions related to JAVA, DSA, and React...read more

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KONE Full Stack Developer Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more

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