SELECTED | WIPRO | Java microservice spring boot real time interview | Teams interview | Round-I

#javainterviewquestion #wipro #springboot
Microservice
Springboot
Java 8

Real time interview:

real time interview questions and answer

[aakritigupta]

Notes:

about project
oops concepts
abstraction - gave examples abstract class, interface
abstraction, inheritance
difference b/w extends and implements
can we extend more than one class?
how to achieve multiple inheritance in java?
What is string pool?
ExecutorService in java?
What is deadlock and how to avoid it?
how to combine the end result of multiple threads?
Collections in java, name them? ArrayList, HashMap
Types of HashMap
Use of Concurrent Hashmap (Multithreaded env, locks write feature when multiple threads not reads)
What is singleton class in Java
Where are you using Singleton in your current project? (Spring bean default scope is singleton)

Asked to share screen
Given a number in chat, find the sum of the number

Advantage of Microservices architecture explanation (compared with monolith)
What happens when a spring boot application starts?
Docker, how it works?
Docker system command
Docker image?
How to secure endpoints from outside? (Spring security, JWT)
Asked about cloud platform he worked and messaging system
What are docker container's disadvantage?
What are docker container's advantage?
How many services can we run in container, what are the factors affecting this?
How to restart docker container?
can it restart by itself?
ec2 instances?
two instances reach 95% utilization, how to handle?

[PramodKumar-kgsd]

3-4, combine the result at end - I think answer is using cyclicbarrier. Please comment

[sunilji]

You can implement multiple inheritance using default methods in functional interfaces Java8

[vasanthabhanu]

Its good if u can make the question scroll on screen

[krish]

The only way to implement multiple inheritance is to implement multiple interfaces in a class.

[iarpanbose]

The interviewer started its interview by asking fresher lvl theoretical questions also i think the interviewer need some energy drink.

[PramodKumar-kgsd]

Sum of digits of a number simple, 2 expression, mod of num by 10, and divided num by 10. Y to convert it to string

[priyeshgangwar]

Superb bro!!! It really helps a lot...😊😊😊

[ashokkumarrout]

Which Headset You Use, It have lots of background noise

[darshanatandel]

How many rounds, technical and hr only? No written test?

[ishrathshaik]

Thank you for uploading videos..it's very helpful...how much package they offered

[shwetabhat]

Really helpful content sir 🙂 Thank You
Could you kindly tell what was the coding question . Couldn't really hear clearly . Thank You 🙂

[democratcobra]

tomr final package koto holo go rainak??

[TheMvsudhir]

Is it mandatory to write the program on ide

[akashtetme]

Amazing work, can you please record the coding problems and share, that'll be great. I know they can be found anywhere, but here it'll be nice.