GE Senior Data Engineer Interview Questions and Answers

Compile time polymorphism is achieved through function overloading and templates.

• Function overloading allows multiple functions with the same name but different parameters.

• Templates allow generic programming by defining functions or classes that can work with different data types.

• Examples of function overloading include cout<< for different data types and sqrt() for float and double.

• Examples of templates include vector

Connecting to a database has multiple options depending on the type of database and programming language used.

• For SQL databases, options include using JDBC for Java, ODBC for C++, and ADO.NET for C#.

• For NoSQL databases, options include using MongoDB's driver for Python or Node.js.

• ORMs like Hibernate and Entity Framework can also be used to abstract away the database connection details.

• Connection strings are used to spe...read more

Dependency injection is a design pattern where the dependencies of an object are provided externally.

• Dependencies are objects that a class needs to function properly

• Dependency injection allows for loose coupling between objects

• There are three types of dependency injection: constructor injection, setter injection, and interface injection

• Example: Instead of creating a new instance of a dependency within a class, the depe...read more

Steam API is a set of tools and resources for game developers to integrate Steam features into their games.

• Steam API provides access to features such as matchmaking, achievements, and user profiles.

• Developers can use Steamworks SDK to integrate Steam features into their games.

• Steam API also allows for in-game purchases and microtransactions.

• Examples of games that use Steam API include Counter-Strike: Global Offensive a

HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.

• Hashing function is used to convert the key into an index of an array where the value is stored.

• Collisions occur when two keys have the same hash value, which is resolved using separate chaining or open addressing.

• HashMap uses an array of linked lists to handle collisions.

• The load factor determines when the HashMap shoul...read more