10+ Associate Product Engineer Interview Questions and Answers

Yes, I know SQL and can write a query to select rows in a database table.

• Yes, I am proficient in SQL and can write queries to retrieve specific data from database tables.

• I can use SELECT statement along with WHERE clause to filter rows based on specified conditions.

• For example, SELECT * FROM table_name WHERE condition;

• I can also use ORDER BY, GROUP BY, and JOIN clauses to further refine the query results.

JavaScript is a programming language commonly used for web development. It is different from Java in terms of syntax, purpose, and usage.

• JavaScript is a scripting language primarily used for client-side web development.

• Java is a general-purpose programming language often used for server-side applications.

• JavaScript code is executed on the client's browser, while Java code is executed on the server.

• JavaScript is dynamically typed, while Java is statically typed.

• JavaScript is o...read more

Java is a compiled language.

• Java code is compiled into bytecode by the Java compiler.

• The bytecode is then interpreted and executed by the Java Virtual Machine (JVM).

• This combination of compilation and interpretation makes Java a compiled language.

The different types of access modifiers in Java control the visibility and accessibility of classes, methods, and variables.

• There are four types of access modifiers in Java: public, private, protected, and default (no modifier).

• Public: accessible from any other class.

• Private: accessible only within the same class.

• Protected: accessible within the same package and subclasses.

• Default: accessible only within the same package.

Lists are mutable, ordered collections of items while tuples are immutable, ordered collections of items in Python.

• Lists are defined using square brackets [] while tuples are defined using parentheses ().

• Lists can be modified (add, remove, change elements) while tuples cannot be modified once created.

• Lists are typically used for collections of similar items while tuples are used for fixed collections of items.

• Example: list_example = [1, 2, 3] and tuple_example = (4, 5, 6)

Binary search on rotated arrays involves finding a target value in a sorted array that has been rotated at an unknown pivot point.

• Identify the pivot point by finding the minimum element in the array.

• Determine which half of the array the target value falls into based on the pivot point.

• Perform binary search on the appropriate half of the array to find the target value.

package.json file is used in Node.js projects to manage dependencies, scripts, and metadata.

• Contains project metadata like name, version, description, etc.

• Lists dependencies required for the project to run.

• Defines scripts for tasks like building, testing, and running the project.

• Can include configurations for tools like ESLint, Babel, etc.

Access specifiers control the visibility of class members in object-oriented programming.

• Public: accessible from any class

• Private: only accessible within the same class

• Protected: accessible within the same class and its subclasses

• Examples: public int age; private String name; protected double salary;

Quick sort is a popular sorting algorithm that uses divide and conquer strategy.

• Quick sort picks a pivot element and partitions the array around the pivot.

• It recursively sorts the sub-arrays on either side of the pivot.

• It is efficient for large datasets but can have worst-case time complexity of O(n^2).

• Example: [3, 6, 8, 10, 1, 2, 1]