Questions and Exercises

Check your level of understanding of the concepts presented in this chapter by answering the following questions:

1. How can I read a text file with lines of variable length?

   a) By using the CSV Reader node

   b) By using the File Reader node

   c) By using the File Reader node and the allow short lines enabled option

   d) By using the File Reader node and the Limit Rows enabled option

2. How can I filter records to the Age > 42 column?

   a) By using the Column Filter node and selecting the Age column

   b) By using the Row Filter node and pattern matching =42 with the Include option on the right

   c) By using the Row Filter node and range checking on, lower boundary 42, with the Include option on the right

   d) By using the Row Filter node and range checking on, lower boundary 42, with the Exclude option on the right

3. How can I find the average sentiment rating for single women?

   a) By using a GroupBy node with Gender and MaritalStatus as group columns and...