A varchar data type:
A) is used to represent elements for which the analyst needs to determine the length.
B) is an element that contains a check digit.
C) is used to represent a floating point number with an indeterminate number of decimal positions..
D) is used for data that can contain any number of characters (up to the database limit).
D) is used for data that can contain any number of characters (up to the database limit).
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The data in most forms comes from the tables and queries in the database. _________________________
Answer the following statement true (T) or false (F)
Asynchronous transmission is more efficient than synchronous transmission
a. when there are small data blocks b. when there are large data blocks c. in all cases d. when transmission speeds are high