Gameberry Labs Engineering Manager Interview Questions and Answers

Flight search system

Q1. System design Scheduler system
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Q1. System design sending notification to million users.
Ans. 
Design a scalable system to send notifications to a million users.
• Use a distributed system to handle the large volume of notifications.

• Implement a message queue to manage the notifications efficiently.

• Utilize push notifications for mobile devices to reduce server load.

• Consider using a content delivery network (CDN) for delivering notifications quickly.

• Implement monitoring and alerting to track the performance of the no
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It was a time constraint exam with easy to hard questions in the questionnaire. There were multiple choice questions from English, Aptitude, Basic technical questions.

Q1. Questions were related to mostly everything that was mentioned in the resume.Questions included technical discussion , communication, games & puzzles, hobies etc. It was a great experience overall.
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Q1. Mostly situation based questions were there. They tested writing skills.
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There were two coding questions; one was related to linked lists, and the other was linked to binary trees.

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
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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.
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Q3. Some questions were asked regarding the four pillars of Object-Oriented Programming (OOP)?
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Q4. Questions related to pointers, dangling pointers.
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Q1. Program for finding the perfect squares between two numbers.
Ans. 
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
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Q2. What are smart pointers in C++?
Ans. 
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.
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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
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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
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Q1. SQL on joins , partition, rank dense rank
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Q2. Case study on guestimation
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Q1. Search in 2d matrix
Ans. 
Search for a target value in a 2D matrix efficiently.
• Use binary search on rows to find the potential row where the target value may exist.

• Then use binary search on that row to find the target value.
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Q2. Find quadraplets that sum to target
Ans. 
Find quadraplets in an array that sum up to a target value.
• Use a nested loop to iterate through all possible combinations of quadraplets.

• Keep track of the sum of each quadraplet and compare it to the target value.

• Return the quadraplets that match the target sum.
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Basic coding test like palindrome, series,arrays

Q1. Logical questions,puzzle, behavioural round, introduction
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Simple and straight

Q1. Past Experience and skills
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Q1. Knowledge and experience in chosen field
Ans. 
I have extensive knowledge and experience in project management, including planning, execution, and monitoring.
• I have successfully managed multiple projects from initiation to closure

• I am proficient in project management tools such as Gantt charts and risk management matrices

• I have experience in leading cross-functional teams and managing stakeholder expectations

• I continuously seek to improve my skills through professi
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Q1. Skills and future and plans
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