Question

1.If the people posing for a photo are data ,then the photo uploaded on the Facebook with the name of the people in it is :
(a) processing
(b) Backing store
(c) Information
2. A collection of related records is also known as:
(a) Field
(b) Database
(c) File
3. Which of the following is a composite key most closely related to?
(a) Primary key
(b) Foreign key
(c) None of these
4. Can a primary key ever be NULL?
(a) Yes
(b) No
(c) It depends​

Answer 1

Answer:

1.(b) Backing store

2.(a) Field

3.(b) Foreign key

4.(c) It depends

Explanation:

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Answer 2

Answer:

1. (b) Backing Store.
2. (a) Field.
3. (b) Foreign Key.
4. (c) It Depends.