Question

6. Which one of the following refers to the "data about data"?

a. Directory

b. Sub Data

c. Warehouse

d. Meta Data

7. Which of the following refers to the level of data abstraction that describes

exactly how the data actually stored?

a. Conceptual Level

b. Physical Level

c. File Level

d. Logical Level

8. To which of the following the term "DBA" referred?

a. Data Bank Administrator

b. Database Administrator

c. Data Administrator

d. None of the above

9. Rows of a relation are known as the _______.

a. Degree

b. Tuples

c. Entity

d. All of the above

10. Which of the following refers to the number of tuples in a relation?

a. Entity

b. Column

c. Cardinality

d. None of the above​

Answer 1

Answer:

sub data

none of the above

Answer 2

Answer:

1. b , 2. e ,3. c ,4.a ,5. d