It210 Checkpoint Week6

Review Exercises

Fill in the Blank

1. A(n) data file is a collection of data that has been given a name and stored in

a file.

2. Data files are often made up of records, which consist of one or more items

called flat files.

3. A(n) text file consists solely of standard characters.

4. A(n) binary file may contain non-standard characters.

5. To access the fifth record in a(n) _____ file, we must read the first four

records first.

6. To access the fifth record in a(n) _____ file, we don’t need to read the first

four records first.

7. In the technique of _____, the program exits a loop or module and performs

an action whenever the value of a specified variable changes or

reaches a predetermined level.

8. The “specified variable” of Exercise 7 is called the _____ variable for the

process.

True or False

9. T F A program file contains data that is to be used by various programs.

10. T F A data file can be used by more than one program.

11. T F A data file can store a program’s output for future use.

12. T F Word processors are designed to be able to read all binary files.

13. T F If a file is opened for Output, and a file of that name already exists in

that folder, then all data on the latter file is erased.

14. T F The statement

Write DataFile, Number

transmits the value of Number to the file with internal name DataFile

15. T F When a file is opened for Input, data can be written from the program

to that file.

16. T F When a file is closed, the connection between the internal and external

names is terminated.

17. T F If a single record is to be changed in a sequential file, then the entire

file must be rewritten to a temporary file.

18. T F Some programming languages contain statements that can be used to

delete and rename files.

19. T F After merging two sequential files that are sorted in ascending order,

the resulting merged file will also be sorted in ascending order.

20. T F To merge two sequential files, they must first be...