Question

Pls answer Q.6 pls urgent

Answer 1

a) Wireless connection or Digital subscriber line.

b) E-mail and chat room or forms

Hope this answer is helpful.

Answer 2

The data type of all the field is

1)String.Integer

2).Float (floating point numbers - also called double)

3)Boolean.

4)Array.

Primary keys must contain unique values. A primary key column cannot have NULL values. A table can have only oneprimary key, which may consist of single or multiple fields. When multiple fields are used as aprimary key, they are called a composite key.