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Octro Software Engineer Interview Questions and Answers
6 Interview questions
Reversing a linked list involves changing the direction of pointers to go from the end to the beginning.
Start by initializing three pointers: current, previous, and next.
Iterate through the linked list, updating the pointers to reverse the direction of the links.
Update the head of the linked list to point to the new first node, which was the original last node.
Mutual exclusion is a concept in concurrent programming where only one thread can access a shared resource at a time.
Ensures that only one thread can access a critical section of code at a time
Prevents race conditions and data corruption
Commonly implemented using locks, semaphores, or mutexes
Example: Using a mutex to protect a shared variable in a multi-threaded application
Implementing multithreading involves creating and managing multiple threads to execute tasks concurrently.
Identify the tasks that can be executed concurrently
Create and manage multiple threads to execute these tasks simultaneously
Use synchronization techniques like locks and semaphores to prevent race conditions
Handle communication and coordination between threads
Consider thread safety and resource sharing issues
The four pillars of OOP are encapsulation, inheritance, polymorphism, and abstraction, essential for building robust software.
Encapsulation: Bundling data and methods that operate on the data within a single unit (class). Example: A class 'Car' with attributes like 'speed' and methods like 'accelerate()'.
Inheritance: Mechanism to create a new class using properties and methods of an existing class. Example: 'Elect...
Program to find perfect squares between two numbers
Iterate through numbers between the given range
Check if the square root of the number is an integer
If yes, then it is a perfect square
Smart pointers in C++ are objects that act like pointers but provide automatic memory management.
Smart pointers help prevent memory leaks by automatically managing memory allocation and deallocation.
Examples include unique_ptr, shared_ptr, and weak_ptr.
unique_ptr is used for exclusive ownership, shared_ptr for shared ownership, and weak_ptr to prevent circular references.
Octro Software Engineer Interview Experiences
1 interview found
Anonymous
Selected
I appeared for an interview before Feb 2024.
There were two coding questions; one was related to linked lists, and the other was linked to binary trees.
(4 Questions)
- Q1. Can you elaborate on the project discussion you mentioned in your resume?
- Ans.
Developed a web application for tracking inventory and sales data
Used React for front-end development
Implemented RESTful APIs using Node.js and Express for back-end
Utilized MongoDB for database management
Integrated authentication and authorization features for secure access
Implemented data visualization using Chart.js
- Q2. Can you provide the code to reverse a linked list?
- Ans.
Reversing a linked list involves changing the direction of pointers to go from the end to the beginning.
Start by initializing three pointers: current, previous, and next.
Iterate through the linked list, updating the pointers to reverse the direction of the links.
Update the head of the linked list to point to the new first node, which was the original last node.
- Q3. Some questions were asked regarding the four pillars of Object-Oriented Programming (OOP)?
- Q4. Questions related to pointers, dangling pointers.
(4 Questions)
- Q1. Program for finding the perfect squares between two numbers.
- Q2. What are smart pointers in C++?
- Q3. What is mutual exclusion in the context of concurrent programming?
- Ans.
Mutual exclusion is a concept in concurrent programming where only one thread can access a shared resource at a time.
Ensures that only one thread can access a critical section of code at a time
Prevents race conditions and data corruption
Commonly implemented using locks, semaphores, or mutexes
Example: Using a mutex to protect a shared variable in a multi-threaded application
- Q4. What is the process for implementing multithreading?
- Ans.
Implementing multithreading involves creating and managing multiple threads to execute tasks concurrently.
Identify the tasks that can be executed concurrently
Create and manage multiple threads to execute these tasks simultaneously
Use synchronization techniques like locks and semaphores to prevent race conditions
Handle communication and coordination between threads
Consider thread safety and resource sharing issues
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
I applied via Company Website and was interviewed in Aug 2024. There was 1 interview round.
Write a code for HTML DOM
Selected
I appeared for an interview before Apr 2024, where I was asked the following questions.
- Q1. Sliding window question
- Q2. Tree question basic
Software Developer Interview Questions & Answers
Biyani Technologies
Kirti Bajaj
posted on 13 Sep 2024
Selected
Asked some medium level SQL questions
(1 Question)
- Q1. Everything that the HR asks
Aniket Prabhakar
Selected
I appeared for an interview in Nov 2024, where I was asked the following questions.
- Q1. What interests you most about working at apptunix?
- Ans.
Apptunix offers a dynamic environment for innovation, collaboration, and growth in mobile and web application development.
Innovative Projects: Working on cutting-edge technologies like AI and IoT, which allows me to push my skills and creativity.
Collaborative Culture: The emphasis on teamwork and knowledge sharing fosters a supportive environment where I can learn from experienced colleagues.
Career Growth Opportunities...
- Q2. How do you handle tight deadlines in app development?
- Ans.
Handling tight deadlines in app development requires effective planning, prioritization, and communication to ensure timely delivery.
Prioritize Tasks: Identify critical features that must be completed first. For example, focus on core functionalities before adding enhancements.
Agile Methodology: Use agile practices like sprints to break down the project into manageable chunks, allowing for iterative progress and adjust...
Interview Preparation Tips
Selected
I appeared for an interview in Dec 2024, where I was asked the following questions.
- Q1. Tell be about your self
- Ans.
I am a passionate software developer with a strong background in full-stack development and a love for problem-solving.
Experience in JavaScript frameworks like React and Angular, building responsive web applications.
Proficient in backend technologies such as Node.js and Express, creating RESTful APIs.
Strong understanding of databases, both SQL (PostgreSQL) and NoSQL (MongoDB), for data management.
Worked on a team proje...
- Q2. What inspired you to apply for this role ?
- Ans.
I was inspired by the opportunity to innovate and contribute to impactful projects in a collaborative environment.
Passion for technology: I've always been fascinated by how software can solve real-world problems, like developing an app that helps users track their health.
Alignment with company values: Your commitment to sustainability resonates with my personal values, and I want to be part of a team that makes a diffe...
Interview Preparation Tips
Selected
I appeared for an interview before Jun 2024, where I was asked the following questions.
- Q1. Tell me about a time when you worked in a team
- Q2. How do you handle stress or pressure in the workplace
- Ans.
I manage stress by prioritizing tasks, maintaining open communication, and practicing mindfulness techniques to stay focused and calm.
Prioritize tasks: I create a to-do list to focus on high-impact tasks first, ensuring I meet deadlines without feeling overwhelmed.
Open communication: I discuss challenges with my team or manager, which helps in finding solutions and reduces feelings of isolation.
Mindfulness techniques: ...
Interview Preparation Tips
Ranjit Ratiya
I applied via AmbitionBox and was interviewed in Nov 2023. There were 2 interview rounds.
DSA question and DBMS SQL
(1 Question)
- Q1. Basic concepts and your project
Interview Preparation Tips
It's normal question easy to cark
Selected
I applied via LinkedIn and was interviewed in Sep 2024. There was 1 interview round.
It was online test with 3 coding questions and 18 mcqs
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