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InfoAxon Technologies Senior Engineer Interview Questions and Answers
6 Interview questions
Fill ratio is the percentage of array slots that are occupied by elements. Concurrency level is the estimated number of concurrently updating threads.
Fill ratio is important for performance optimization and memory usage.
Concurrency level determines the number of segments in the collection.
Higher concurrency level can improve performance but also increases memory usage.
Examples of concurrent collection frameworks i...
A thread is a lightweight process that can run concurrently with other threads within a program.
Threads share the same memory space as the parent process.
Threads can communicate with each other through shared memory.
Threads can be created and managed using threading libraries in programming languages like Java and Python.
HashMap is a data structure that stores key-value pairs and provides constant time complexity for basic operations.
HashMap uses hashing to store and retrieve values based on their keys.
It allows null values and one null key.
Collisions are resolved by chaining or open addressing.
The initial capacity and load factor can be specified during initialization.
The internal array is resized when the load factor exceeds a t...
StringBuffer is synchronized while StringBuilder is not.
StringBuffer is thread-safe while StringBuilder is not.
StringBuffer is slower than StringBuilder due to synchronization.
StringBuilder is preferred for single-threaded operations.
Both classes are used for manipulating strings.
Example: StringBuffer sb = new StringBuffer(); StringBuilder sb = new StringBuilder();
The entry point of a Java program, must be public, static, void and accept an array of strings as argument.
public: accessible from anywhere in the program
static: belongs to the class, not to an instance of the class
void: does not return any value
main: the name of the method that serves as the entry point of the program
String[] args: an array of strings that can be used to pass arguments to the program
Encapsulation is the process of hiding implementation details and exposing only necessary information.
Encapsulation is achieved through access modifiers like public, private, and protected.
It helps in achieving data abstraction and information hiding.
It prevents unauthorized access to the internal details of an object.
Example: A class with private variables and public methods to access those variables.
Example: A c...
InfoAxon Technologies Senior Engineer Interview Experiences
1 interview found
I applied via Campus Placement and was interviewed before May 2020. There were 4 interview rounds.
Interview Questionnaire
6 Questions
- Q1. What do you know about HashMap explain with internal working?
- Ans.
HashMap is a data structure that stores key-value pairs and provides constant time complexity for basic operations.
HashMap uses hashing to store and retrieve values based on their keys.
It allows null values and one null key.
Collisions are resolved by chaining or open addressing.
The initial capacity and load factor can be specified during initialization.
The internal array is resized when the load factor exceeds a thresh...
- Q2. What is the difference between StringBuffer and StringBuilder?
- Ans.
StringBuffer is synchronized while StringBuilder is not.
StringBuffer is thread-safe while StringBuilder is not.
StringBuffer is slower than StringBuilder due to synchronization.
StringBuilder is preferred for single-threaded operations.
Both classes are used for manipulating strings.
Example: StringBuffer sb = new StringBuffer(); StringBuilder sb = new StringBuilder();
- Q3. Explain public static void main (String[] args) .
- Ans.
The entry point of a Java program, must be public, static, void and accept an array of strings as argument.
public: accessible from anywhere in the program
static: belongs to the class, not to an instance of the class
void: does not return any value
main: the name of the method that serves as the entry point of the program
String[] args: an array of strings that can be used to pass arguments to the program
- Q4. Explains ways to define Thread.
- Ans.
A thread is a lightweight process that can run concurrently with other threads within a program.
Threads share the same memory space as the parent process.
Threads can communicate with each other through shared memory.
Threads can be created and managed using threading libraries in programming languages like Java and Python.
- Q5. What is encapsulation? How can achieve it?
- Ans.
Encapsulation is the process of hiding implementation details and exposing only necessary information.
Encapsulation is achieved through access modifiers like public, private, and protected.
It helps in achieving data abstraction and information hiding.
It prevents unauthorized access to the internal details of an object.
Example: A class with private variables and public methods to access those variables.
Example: A capsul...
- Q6. What is the fill ratio and concurrency level in Concurrent Collection Framework
- Ans.
Fill ratio is the percentage of array slots that are occupied by elements. Concurrency level is the estimated number of concurrently updating threads.
Fill ratio is important for performance optimization and memory usage.
Concurrency level determines the number of segments in the collection.
Higher concurrency level can improve performance but also increases memory usage.
Examples of concurrent collection frameworks includ...
Interview Preparation Tips
Be real.
Skills evaluated in this interview
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Software Engineer Interview Questions & Answers
Apmosys Technologies
Anonymous
posted on 13 Jan 2021
I applied via Referral and was interviewed before Jan 2020. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Which technology are you using, is this latest?
- Ans.
We are using a variety of technologies, including some of the latest ones.
We are using React for our front-end development.
We are also using Node.js for our back-end development.
We are using Docker for containerization.
We are using Kubernetes for orchestration.
We are using AWS for cloud hosting.
We are constantly evaluating new technologies to see if they can improve our development process.
- Q2. If not then which technology can we use instead of this?
- Ans.
It depends on the specific requirements and constraints of the project.
Consider the project's goals and objectives
Evaluate the available technologies and their capabilities
Assess the project's budget and timeline
Consult with stakeholders and experts in the field
Examples: React vs Angular, MySQL vs MongoDB, Java vs Python
Interview Preparation Tips
Listen carefully and speak fluently.
Randeep Singh
I applied via Company Website and was interviewed before Dec 2019. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Regarding OOPS, wordpress and laravel.
Interview Preparation Tips
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Apmosys Technologies
Anonymous
posted on 12 Apr 2023
Selected
I applied via Recruitment Consulltant and was interviewed before Apr 2022. There were 3 interview rounds.
25 MCQ questions online with time limit
Create webapp . Frontend, Backend , data encryption
I applied via Campus Placement and was interviewed in Sep 2023. There were 4 interview rounds.
Python based questions
(2 Questions)
- Q1. Python based questions
- Q2. Java based questions
(1 Question)
- Q1. Tell me about yourself
I appeared for an interview in Feb 2025.
They asked one coding question that is for star pattern question
Interview Preparation Tips
Selected
I applied via Recruitment Consulltant and was interviewed in Apr 2024. There was 1 interview round.
(1 Question)
- Q1. Pattern question based on the coding
- Ans.
This question tests your ability to identify and generate patterns in coding.
Understand the pattern: Analyze the given examples to identify the underlying rule.
Use loops: Implement loops to generate sequences based on the identified pattern.
Consider edge cases: Ensure your solution handles special cases, like empty arrays or single elements.
Optimize for performance: Think about the time complexity of your solution, esp...
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Snovasys
218A1A05A9 GOGATI GOVARDHAN
posted on 1 Nov 2024
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Number series in aptitude
- Ans.
Number series in aptitude involves identifying the pattern in a sequence of numbers and predicting the next number.
Look for patterns such as arithmetic progression, geometric progression, or a combination of both.
Check for alternate numbers, differences between consecutive numbers, or multiplication factors.
Consider prime numbers, squares, cubes, or other mathematical operations applied to the series.
Example: 2, 4, 6, ...
- Q2. Relation ships in berbal
- Ans.
Relationships in verbal communication are crucial for effective collaboration and understanding.
Verbal communication involves both verbal and non-verbal cues
Active listening is key to building strong relationships in verbal communication
Clarity and conciseness in speech can enhance relationships
Empathy and understanding of others' perspectives are important in verbal relationships
(2 Questions)
- Q1. Explain the four branches of oops
- Ans.
The four branches of OOP are encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation: Bundling data and methods that operate on the data into a single unit.
Inheritance: Allowing a class to inherit properties and behavior from another class.
Polymorphism: The ability for objects of different classes to respond to the same method call.
Abstraction: Hiding the complex implementation details and showing only ...
- Q2. Explain about the structures in c
- Ans.
Structures in C are user-defined data types that allow grouping of variables of different data types under a single name.
Structures are used to represent a record which consists of different data types.
They are defined using the 'struct' keyword.
Each variable in a structure is called a member.
Structures can be nested within other structures.
Example: struct employee { int emp_id; char emp_name[50]; float emp_salary; };
E...
Skills evaluated in this interview
Software Developer Interview Questions & Answers
Hummingbird Web Solutions
Anonymous
posted on 24 Oct 2024
(1 Question)
- Q1. 3 Question was there related to architecture and Computer networks.
(2 Questions)
- Q1. Microservices and Monolith.
- Q2. Leetcode hard Sum.
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. String related questions
- Q2. ARRAY related questions
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