53 Knowledge Exercises Knowledge Exercises 1. What is data? 2. Define the term Data Structure. 3. What is a built-in data structure? 4. What three criteria are used to determine whether a data structure is acceptable for a particu- lar application? 5. What factors determine the cost of software? 6. It has been estimated that a program will consist of 300,000 lines of code. If the burdened cost of a programmer's efforts is $150 per hour, determine the cost of the program. 7. Put the following terms in size order: node, field, data set. 8. An application is to be written that would allow students to find out their GPA (a double ) and their total number of credits (an integer ), given their student number (an integer ). (a) Draw a picture of the node used in this application. Include field names and data types. (b) Give the node width in bytes. EXERCISES