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I applied via Naukri.com and was interviewed in May 2022. There was 1 interview round.
Hashmap is a data structure that stores key-value pairs. Concurrent Hashmap is a thread-safe version of Hashmap.
Hashmap is implemented using an array of linked lists.
It allows null values and only one null key.
Concurrent Hashmap allows multiple threads to access and modify the map concurrently.
It achieves thread-safety by dividing the map into segments and locking only the affected segments during modification.
Annotations in Spring Boot repository and service
Annotations are used to provide metadata to the code
@Repository annotation is used to indicate a DAO component
@Service annotation is used to indicate a service component
Both annotations are used in Spring Boot to enable dependency injection
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posted on 2 Jun 2022
I appeared for an interview before Jun 2021.
Had DSA and aptitude questions
I applied via Referral and was interviewed in Sep 2021. There were 6 interview rounds.
Reliability refers to the ability of a system or component to perform its required functions under stated conditions for a specified period of time.
Reliability is a measure of how often a system or component fails and how quickly it can be restored to normal operation.
It is important to design systems with redundancy and failover mechanisms to ensure high reliability.
Reliability can be improved through regular maintena...
I applied via LinkedIn and was interviewed in Jun 2021. There was 1 interview round.
I appeared for an interview in Nov 2020.
Round duration - 2 hours
Round difficulty - Medium
In the 1st round
Aptitude
Reasoning
English
Automata fix( code debug)
Timing in morning
Environment is good
Interviewer was very cool and interactive
Given a text message, your task is to return the Run-length Encoding of the given message.
Run-length encoding is a fast and simple method of encoding strings, repres...
Implement a function to encode a text message using run-length encoding.
Iterate through the message and count consecutive characters
Append the character and its count to the encoded message
Handle edge cases like single characters or empty message
Round duration - 30 minutes
Round difficulty - Medium
This is interview round
Ques from basic electronics
C language
Create a class named Person
with a string variable 'name'
and an integer variable 'age'
, such that these variables are not accessible outside the class. Implement a me...
Create a class Person with private variables name and age, and methods to set and get their values.
Create a class Person with private variables 'name' and 'age'.
Implement a method setValue to set the variables' values.
Implement a method getValue to print the variables' values.
Ensure the name is a non-empty string and the age is a non-negative integer.
Encapsulate the data and provide a clear interface for setting and ge...
Tip 1 : Do aptitude from indiabix. Go through your basics. At least one language u know. Learn about your branch basics. Know concept of data structure and oops.
Tip 2 : prepare your final project well.
Tip 1 : the skills you know very well mention in resume
Tip 2 : mention project in resume
I applied via Naukri.com and was interviewed in Feb 2022. There were 2 interview rounds.
C , java
HTML
Aptitude and resume shortlist and HTML
I applied via Naukri.com and was interviewed before May 2021. There were 3 interview rounds.
Inner join returns only matching rows from both tables while outer join returns all rows from one table and matching rows from the other.
Inner join is used to combine data from two tables based on a common column.
Outer join is used to combine data from two tables where one table may not have matching rows in the other.
There are three types of outer join: left outer join, right outer join, and full outer join.
Left outer...
An abstract class is a class that cannot be instantiated and is used as a base class for other classes.
An abstract class can have abstract and non-abstract methods.
Abstract methods have no implementation and must be implemented by the derived class.
An abstract class can have constructors and fields.
An abstract class can be used to define a common interface for a group of related classes.
Example: Animal is an abstract c...
Normalization is a process of organizing data in a database to reduce redundancy and dependency.
Normalization is used to eliminate data redundancy and dependency.
3NF (Third Normal Form) eliminates transitive dependencies while BCNF (Boyce-Codd Normal Form) eliminates partial dependencies.
3NF is a subset of BCNF.
Normalization helps in improving data consistency and integrity.
Normalization can also improve database perfo...
I applied via Naukri.com and was interviewed before Sep 2019. There were 6 interview rounds.
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