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KJ System
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KJ System SDE Interview Questions and Answers
KJ System SDE Interview Experiences
1 interview found
Anonymous
(2 Questions)
- Q1. Goood role and it was the best round for me
- Q2. How to find middel element of linked list
- Ans.
To find the middle element of a linked list, use the slow and fast pointer technique.
Initialize two pointers, slow and fast, at the head of the linked list.
Move the slow pointer by one step and the fast pointer by two steps until the fast pointer reaches the end of the list.
The position of the slow pointer will be the middle element of the linked list.
Interview Preparation Tips
Skills evaluated in this interview
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Interview questions from similar companies
Selected
I applied via Campus Placement and was interviewed before Jun 2023. There were 3 interview rounds.
60 minutes of coding round with medium level of question asked
Coding and Aptitude MCQ questions
(2 Questions)
- Q1. How i can design a login system for client?
- Ans.
Designing a login system for clients involves creating secure authentication methods and user management.
Implement secure password hashing algorithms like bcrypt to store passwords securely.
Use HTTPS to encrypt data transmission between client and server.
Implement multi-factor authentication for added security.
Utilize session management to keep track of user login status.
Consider implementing account lockout mechanisms
- Q2. What is foreign key and how you can you can use foreign key in your DBMS system?
- Ans.
Foreign key is a key used to link two tables in a database, enforcing referential integrity.
Foreign key is a column or a set of columns in one table that references the primary key in another table.
It ensures that the values in the foreign key column(s) match the values in the primary key column of the referenced table.
Foreign key constraints help maintain data integrity by preventing actions that would destroy links b...
Skills evaluated in this interview
Interview Questionnaire
1 Question
- Q1. Introduction And Overview of Company
- Ans. First introduced yourself with a little smile and before any interview go through the JD of the company, this will help you more. And one more thing that search about the interviewers who is going to take your interview.
Selected
I applied via Campus Placement and was interviewed before Aug 2023. There were 4 interview rounds.
Basic Aptitude test, it was easy
Questions on array medium level
(1 Question)
- Q1. Array questions
(2 Questions)
- Q1. Tell me about yourself
- Ans.
I am a software engineer with 5 years of experience in developing web applications using Java, Spring, and Angular.
5 years of experience in software development
Proficient in Java, Spring, and Angular
Strong problem-solving skills
Team player with excellent communication skills
- Q2. Where do you see yourself
- Ans.
I see myself continuing to grow and develop my skills in a challenging and rewarding role.
Continuing to learn new technologies and stay updated with industry trends
Taking on more responsibilities and leadership roles
Contributing to the success and growth of the company
Striving for personal and professional growth
Interview Preparation Tips
DEEPANSHU MITTAL
(2 Questions)
- Q1. What is the shortest distance between two farthest vertices in a cubical room
- Ans.
The shortest distance between two farthest vertices in a cubical room is the length of the diagonal of the cube.
The diagonal of a cube can be calculated using the formula: sqrt(3) * side length
In a cube with side length 1 unit, the diagonal length is sqrt(3) units
Therefore, the shortest distance between two farthest vertices in a cubical room is sqrt(3) times the side length of the cube
- Q2. A root 5 is the ans
Selected
I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
Learn about techstack
Easy interview which mainly focus on concepts
(1 Question)
- Q1. Interview went fine and difficulty is medium
Viren Punjabi
I applied via Campus Placement and was interviewed in Mar 2024. There were 2 interview rounds.
Linked list and trees
(2 Questions)
- Q1. What is arraylist
- Ans.
ArrayList is a dynamic array in Java that can grow or shrink in size as needed.
ArrayList is a class in Java that implements the List interface.
It allows for dynamic resizing of the array, unlike regular arrays.
Elements can be added, removed, or accessed by index.
Example: ArrayList
names = new ArrayList ();
- Q2. What is oops conecepts
- Ans.
Object-oriented programming concepts focus on creating objects that interact with each other to accomplish tasks.
Encapsulation: Bundling data and methods that operate on the data into a single unit (object)
Inheritance: Allowing a class to inherit properties and behavior from another class
Polymorphism: Objects of different classes can be treated as objects of a common superclass
Abstraction: Hiding complex implementation
Skills evaluated in this interview
Dany Soul
(1 Question)
- Q1. 3 EMERGING TECHNOLOGIES
(1 Question)
- Q1. Reverse a linked list
- Ans.
Reverse a linked list by changing the next pointers of each node to point to the previous node.
Start with three pointers: current, prev, and next.
Iterate through the linked list, updating the next pointer of each node to point to the previous node.
Update prev to current and current to next in each iteration.
Skills evaluated in this interview
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KJ System SDE Interview Process
based on 1 interview
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