Learning Scala Web Development (Video 6)

The video transitions from theory to practice by exploring the Akka framework, a Scala-based implementation of the actor model. It covers Akka's history, actor systems, and code snippets, highlighting the complexities of managing actors and messaging. The video also demonstrates how to define and use actors in Akka, and discusses Akka's role in popular frameworks like Apache Spark and Spray. The section concludes with a preview of building RESTful web services using the Spray framework.

What programming language is Akka written in?

• Java

• Python

• Scala

• Ruby

What is the primary role of an actor system in Akka?

• To store data in a database

• To provide a user interface

• To compile Scala code

• To manage resources and facilitate actor communication

How can multiple actor systems coexist within the same JVM?

• By running on separate physical nodes

• By having no global shared state

• By using different programming languages

• By sharing global state

What is the first step in defining a new actor using Akka?

• Compiling the code

• Extending the Actor class

• Creating a new database

• Writing a user interface

What does the 'actorOf' function return in Akka?

• An actor reference

• A user interface

• A database connection

• An instance of the actor class

Which of the following is NOT a library or framework that uses Akka?

• Spray

• Django

• Apache Flink

• Apache Spark

What is the next topic after learning about Akka in this course?

• Building RESTful web services with Spray

• Learning Python programming

• Understanding machine learning

• Exploring database management