Fivetran Senior Product Manager Interview Questions and Answers

How do you handle chronic cases

Tell me something about company

Tell me something about your self

How do you handle chronic situation

Q1. Asked Kadane's algorithm, and some android related questions.
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Q1. Design a hashmap, and optimise it
Ans. 
Design and optimize a hashmap
• Choose a good hash function to minimize collisions

• Implement dynamic resizing to handle increasing load factor

• Consider using open addressing or separate chaining for collision resolution

• Use an efficient data structure for storing key-value pairs, such as an array or linked list
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Q1. Design a custom recyclerview with appropriate data structures
Ans. 
Custom recyclerview with appropriate data structures
• Create a custom adapter extending RecyclerView.Adapter

• Implement onCreateViewHolder() and onBindViewHolder() methods

• Use appropriate data structures like ArrayList or HashMap for efficient data handling

• Implement onClickListener for item clicks

• Use ViewHolder pattern for efficient view recycling
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Q1. What are your expectations related to work and salary
Ans. 
I expect fair compensation for my skills and experience, and a challenging work environment that allows for growth and learning.
• I am looking for a salary that is commensurate with my experience and skills.

• I am open to negotiation and willing to discuss salary and benefits.

• I am looking for a challenging work environment that allows me to learn and grow as a software engineer.

• I am interested in opportunities for professi...read more
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Q1. Skills related questions only
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Q1. Skills related questions only
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Q1. Salary related questions only
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Q1. Difference between static and final
Ans. 
Static is used to define class-level variables and methods, while final is used to define constants that cannot be changed.
• Static variables belong to the class itself, while final variables are constants that cannot be modified.

• Static methods can be called without creating an instance of the class, while final methods cannot be overridden.

• Static variables are shared among all instances of a class, while final variables...read more
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Q2. ArraysList vs LinkedList
Ans. 
ArrayList is better for random access, LinkedList is better for frequent insertions/deletions.
• ArrayList uses dynamic array to store elements, LinkedList uses doubly linked list.

• ArrayList provides fast random access to elements using index, LinkedList provides fast insertion/deletion at any position.

• Example: ArrayList is suitable for scenarios where random access is required like searching, LinkedList is suitable for sc...read more
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Q3. Describe Java8 Features
Ans. 
Java8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to write code in a more concise and readable way.

• Functional interfaces are interfaces with a single abstract method, which can be implemented using lambda expressions.

• Streams provide a way to work with collections of objects in a functional style.

• Default methods allow inte...read more
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Q4. Gave one scenario to solve using streams in java8
Ans. 
Using streams in Java 8 to filter and map a list of numbers
• Create a list of numbers

• Use stream to filter out even numbers

• Use map to square each number

• Collect the results into a new list
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Q5. Multithreading- Write program to print even and odd numbers from 1 to 20 using 2 threads. 1 thread will responsible for printing even and another for Odd. And print in such a manner it should be alternate....read more
Ans. 
Program to print even and odd numbers from 1 to 20 using 2 threads alternately.
• Create two threads, one for printing even numbers and one for printing odd numbers.

• Use wait(), notify(), and notifyAll() to ensure alternate printing.

• Ensure synchronization between the two threads to avoid race conditions.

• Example: Thread 1 prints even numbers (2, 4, 6, ...) and Thread 2 prints odd numbers (1, 3, 5, ...).
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Q6. Why strings immutable
Ans. 
Strings are immutable to ensure data integrity and security.
• Immutable strings prevent accidental changes to data

• Immutable strings allow for safe sharing of data between different parts of a program

• Immutable strings help prevent security vulnerabilities like SQL injection attacks
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Q7. Outer Join SQL query
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Q8. What is the purpose of using default methods in java8?
Ans. 
Default methods in Java 8 allow interfaces to have method implementations, enabling backward compatibility and reducing code duplication.
• Default methods were introduced in Java 8 to provide a way to add new methods to interfaces without breaking existing implementations.

• They allow interfaces to have method implementations, which was not possible before Java 8.

• Default methods can be overridden in implementing classes to...read more
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Q1. 1 coding problem related to Anagrams
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Q2. 1 Java8 streams problem
Ans. 
Using Java8 streams to solve a problem
• Use stream() method to convert a collection into a stream

• Use filter() method to filter elements based on a condition

• Use map() method to transform elements

• Use collect() method to collect the elements into a new collection
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Q3. What are checked exceptions
Ans. 
Checked exceptions are exceptions that must be either caught or declared in the method signature.
• Checked exceptions are subclasses of Exception (excluding RuntimeException and its subclasses)

• Checked exceptions must be either caught using try-catch block or declared in the method signature using 'throws' keyword

• Examples of checked exceptions in Java include IOException, SQLException, and ClassNotFoundException
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Q4. Purpose of @SpringBootApplication annotation?
Ans. 
Annotation used to mark a class as a Spring Boot application
• Combines @Configuration, @EnableAutoConfiguration, and @ComponentScan annotations

• Used to bootstrap and launch a Spring application

• Automatically scans for Spring components in the package and sub-packages
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Q5. Use of @Qualifier
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Annotation used in Spring to specify which bean to autowire
• Used to disambiguate when multiple beans of the same type are present

• Can be used with @Autowired to specify which bean to inject

• Helps in resolving dependencies when multiple beans of the same type are available
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Q6. What are microservices?
Ans. 
Microservices are a software development technique where an application is composed of small, independent services that communicate with each other.
• Microservices are designed to be small, focused on specific tasks, and independently deployable.

• Each microservice typically runs its own process and communicates with other services through APIs.

• Microservices allow for easier scalability, flexibility, and maintenance compar...read more
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Q7. Design patterns
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Q8. How microservices communicate with each other
Ans. 
Microservices communicate with each other through APIs, messaging queues, or service meshes.
• APIs: Microservices can communicate with each other by exposing APIs that allow them to send and receive data.

• Messaging queues: Microservices can use messaging queues like RabbitMQ or Kafka to send messages to each other asynchronously.

• Service meshes: Microservices can communicate through a service mesh like Istio, which handles...read more
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Q1. Asked about projects.
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Q2. Complete flow and business use case of the project
Ans. 
The project involves creating a web-based platform for online shopping with features like user registration, product browsing, shopping cart, and payment processing.
• User registers on the platform with personal information

• User browses products by category or search

• User adds products to the shopping cart

• User proceeds to checkout and makes payment

• Order is confirmed and user receives a confirmation email
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Q3. Interviewer was more concerned about matching the tech stack with job description
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Duration: 1hr
Topics: Array, LinkedList,Stack

Q1. Write code for Insertion in a binary tree.
Ans. 
Code for insertion in a binary tree
• Create a new node with the given data

• If the tree is empty, make the new node as root

• Else, traverse the tree to find the appropriate position to insert the new node

• If the data is less than the current node, go to the left subtree

• If the data is greater than the current node, go to the right subtree

• Repeat until an appropriate position is found

• Set the new node as the child of the appropri
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Q2. Write code for quick sort
Ans. 
Quick sort is a divide-and-conquer algorithm that sorts an array by partitioning it into two sub-arrays.
• Choose a pivot element from the array

• Partition the array around the pivot element

• Recursively apply quick sort to the left and right sub-arrays

• Combine the sorted sub-arrays to get the final sorted array
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Q1. Various DBMS related question(JOINS, SORT, LIMIT)
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Q1. Tell us about yourself.
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Q2. Why do want to join the company
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Q1. Based on your previous experience
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Simple coding questions in your preferred language