Apache Spark Certification Practice Test

In Scala, semicolons are indeed optional for ending statements. This is a distinctive feature of the language that promotes cleaner and more readable code. Scala uses line breaks to determine where a statement ends, allowing developers to omit semicolons unless they want to place multiple statements on a single line. This flexibility makes Scala less verbose compared to languages that strictly require semicolons to signify the end of statements.

While there are scenarios where semicolons can be used, such as separating multiple commands on the same line, it is not a necessity for single-line statements. This design choice reflects Scala's emphasis on reducing boilerplate code and enhancing readability, aligning with functional programming paradigms. Thus, the correct assertion about semicolons in Scala is that they are optional.