Sample Questions

Ballerina language concepts

What is true about Ballerina's type system?

  • a) Ballerina type system supports union types.
  • b) Ballerina is a dynamically-typed language and all variables are implicitly typed.
  • c) Ballerina's type system is limited to primitive types such as integers, strings, and booleans.
  • d) Ballerina does not support the object type.

Ballerina database connectors and transactions

What is the purpose of the sql:ParameterizedQuery type in the Ballerina SQL connectors?

  • a) To allow writing SQL queries with parameters.
  • b) To store the results of a SQL query.
  • c) To define the structure of a database table.
  • d) None of the above.