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Juniper Networks
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I applied via Approached by Company and was interviewed before Feb 2021. There were 5 interview rounds.
4 questions in one and a half hour
Writing code on notepad instead of an IDE
Ensure proper indentation and formatting
Use comments to explain code
Compile and test code manually
Save frequently to avoid losing work
Top trending discussions
ES6, also known as ECMAScript 2015, is the sixth major release of the JavaScript language that introduced new features and syntax improvements.
Introduced let and const for variable declarations
Added arrow functions for more concise syntax
Included classes for object-oriented programming
Introduced template literals for easier string interpolation
Added default parameters and rest parameters for functions
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during compilation.
Variable and function declarations are hoisted to the top of their scope.
Only declarations are hoisted, not initializations.
Function declarations take precedence over variable declarations.
I applied via Naukri.com and was interviewed in Sep 2023. There were 3 interview rounds.
I applied via campus placement at BRACT's Vishwakarma Institute of Information Technology, Pune and was interviewed in Oct 2024. There was 1 interview round.
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
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 or classes.
Examples include method overloading and method overriding in object-oriented programming.
Find missing number from nth number array.
Iterate through the array and calculate the sum of all numbers
Calculate the sum of numbers from 1 to n using the formula n*(n+1)/2
Subtract the sum of array from the sum of numbers from 1 to n to find the missing number
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
Inheritance allows a class to reuse code from another class.
Types of inheritance include single inheritance, where a class inherits from only one parent class, and multiple inheritance, where a class inherits from multiple parent classes.
Example: Class B inherits from Class A, so Class B can access
Find 2nd max element from array of strings
Sort the array in descending order
Skip the first element (max element)
Return the second element
posted on 25 Sep 2024
To check if a linked list is a palindrome, compare the first half of the list with the reversed second half.
Traverse the linked list to find the middle node
Reverse the second half of the linked list
Compare the first half with the reversed second half to check for palindrome
Hacker rank, 3 questions with 1 hour duration
posted on 13 Sep 2024
I applied via Naukri.com and was interviewed in Mar 2024. There were 3 interview rounds.
Interprocess communication involves various mechanisms like pipes, sockets, shared memory, etc. Goroutines communicate using channels and shared memory.
Interprocess communication can be achieved through mechanisms like pipes, sockets, shared memory, message queues, etc.
Goroutines in Go communicate internally using channels, which are typed conduits through which you can send and receive values.
Shared memory can also be...
Design a URL shortener service
Generate a unique short code for each URL
Store the mapping of short code to original URL in a database
Redirect users from short URL to original URL
Consider scalability and performance of the service
Implement analytics to track usage statistics
posted on 26 Jul 2024
posted on 1 Feb 2024
I applied via Naukri.com and was interviewed in Jan 2024. There were 2 interview rounds.
Find min and max from List of Integers using Java 8 streams.
Use the `stream()` method on the List to create a stream of integers.
Use the `min()` method to find the minimum value.
Use the `max()` method to find the maximum value.
Find 2nd largest element using Java 8 streams from a list of integers.
Sort the list of integers in descending order using streams.
Skip the first element to get the second largest element.
Increase the values of a list of integers by 2 and create a new list.
Iterate through the list of integers
For each integer, add 2 to its value
Create a new list with the updated values
Java has introduced several new features in recent versions.
Java 8 introduced lambda expressions, which allow for functional programming.
Java 8 also introduced the Stream API for processing collections of data.
Java 9 introduced the module system, which provides better encapsulation and modularity.
Java 10 introduced local variable type inference, allowing the omission of explicit type declarations.
Java 11 introduced the...
The @Component and @Repository annotations are used in Spring Framework for different purposes.
Both annotations are used to define beans in the Spring container.
@Component is a generic stereotype annotation for any Spring-managed component.
@Repository is a specialization of @Component used for DAO classes.
The @Repository annotation provides additional exception translation for data access exceptions.
Using @Repository i...
The @Entity annotation is used in Java to mark a class as an entity, which represents a table in a relational database.
The @Entity annotation is part of the Java Persistence API (JPA) and is used in object-relational mapping (ORM) to map Java objects to database tables.
It is typically used in conjunction with other JPA annotations like @Table, @Column, and @Id.
The @Entity annotation is used to define the entity name, s...
The database is configured by setting up the necessary parameters and configurations to ensure proper functioning and performance.
Database configuration involves defining the database schema, tables, and relationships.
It includes setting up indexes and constraints for data integrity.
Configuring database security measures like user access control and permissions.
Tuning database performance by optimizing query execution ...
Dockerfile is a text file that contains instructions to build a Docker image.
Dockerfile is used to automate the creation of Docker images.
It specifies the base image, dependencies, environment variables, and commands to run.
Each instruction in the Dockerfile creates a new layer in the image.
Dockerfile can be version controlled and shared to ensure consistent builds.
Example: FROM ubuntu:latest RUN apt-get update && apt-...
CI/CD is a software development practice that enables frequent and automated code integration, testing, and deployment.
CI/CD stands for Continuous Integration and Continuous Deployment.
It involves automating the process of integrating code changes, running tests, and deploying the application.
CI/CD helps in reducing manual errors, improving code quality, and increasing development speed.
Tools like Jenkins, GitLab CI/CD...
Mutable classes in Java are classes whose state can be modified after creation.
Mutable classes allow changing their internal state
They can have mutable fields or methods that modify their state
To create a mutable class, define fields with non-final modifiers
Provide public methods to modify the state of the class
Basic java mcq, Java Hibernate Spring MVC framework questions
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