Lab 18.2 Self-Review Questions

In order to test your progress, you should be able to answer the following questions.

1)	One of the differences between the nested tables and varrays is that _____ nested tables can be sparse, and varrays cannot. _____ varrays can be sparse, and nested tables cannot.
2)	A varray has an upper bound that _____ can be extended without any limits. _____ can be extended to its maximum size. _____ is fixed and cannot be extended to all.
3)	A varray must be initialized prior to its use. _____ True _____ False
4)	If a varray has maximum size of 5 and contains 2 elements _____ the LIMIT and COUNT methods return the same value of 5. _____ the LIMIT and COUNT methods return the same value of 2. _____ the LIMIT method returns the value of 5, and the COUNT method returns the value of 2.
5)	If a varray has eight elements, the DELETE (3, 7) method _____ deletes the third and seventh elements of the collection. _____ deletes the third element and ignores the seventh element of the collection. _____ deletes the elements three to seven. _____ causes an error.

Answers appear in Appendix A, Section 18.2 .