PureSoftware Interview Questions, Process, and Tips

Constraints are used to restrict user input while Declare triggers are used to automate actions based on certain events.

• Constraints are used to validate user input and ensure it meets certain criteria.

• Declare triggers are used to automate actions based on certain events, such as when a new record is created or updated.

• Constraints are defined at the property level while Declare triggers are defined at the class level.

• Co...read more

Forward and backward chaining are two types of reasoning used in artificial intelligence and expert systems.

• Forward chaining starts with the available data and uses rules to infer new conclusions.

• Backward chaining starts with a goal and works backwards to find the data and rules needed to support that goal.

• Forward chaining is used in rule-based systems, while backward chaining is used in goal-based systems.

• Examples of ...read more

Implement a data structure that supports insert, delete, and getRandom operations in O(1) time complexity.

• Use a hashmap to store the mapping of values to their indices in an array for O(1) lookup during delete operation.

• For getRandom operation, generate a random index within the size of the array and return the value at that index.

• To achieve O(1) time complexity for all operations, use a combination of hashmap and arra

LOD, Pie Chart, Dual Axis Chart in Tableau

• LOD (Level of Detail) is used to compute aggregations that are not at the level of detail of the visualization

• Pie Chart is used to show the proportion of different categories in a dataset

• Dual Axis Chart is used to compare two measures with different scales on the same chart

• To create LOD, use curly braces and specify the level of detail

• To create Pie Chart, drag the dimension to ...read more