Answer to Question 1
Answer: TRUE
Answer to Question 2
Fixed character types use very little processor time. They can just be written to disk without any additional calculation. They are, however, potentially wasteful of disk space, since the database writes the same number of characters to disk no matter how many are actually used by the value contained in the column. Variable character types, on the other hand, use more processing time, since the computer must determine the length of the characters used for each data entry. However, variable character types use disk space more effectively because they never write more characters to disk than are actually used.