Options: Entity-Relationship model
B. Relational data model
C. Object-Based data model
D. All of the above
Ans: – D
More Database Systems Related questions:
Which of the following is not true of immediate processing?
Options: It is often used in real-time applications, It can occur with either sequential of direct-access files, It can be used in an airline-reservation system, Transactions are processed shortly after a real-world event occurs
In Word, the default alignment for paragraphs is _____.
Options: a. left-aligned, or flush margins at the left edge and uneven edges at the right edge
b. centered, or equidistant from both the left edge and the right edge
c. right-aligned, or flush margins at the right edge and uneven edges at the left edge
d. justified, or flush margins at both the left and right edges
Options: a. Right-click the row heading where you want to insert the new row and select Insert from the shortcut menu b. Select the row heading where you want to insert the new row and select Edit >Row from the menu c. Select the row heading where you want to insert the new row and click the Insert Row button on the standard toolbar d. All of the above