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Database week 2 & 3

Authored by hasan kadhem

Computers

University

Used 7+ times

Database week 2 & 3
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

what are the 3 levels in ANSI-SPARC Database Architecture ?

designer,

developer and administrator

conceptual, external and internal

conceptual, detailed and internal

conceptual, logical and physical

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

which of the three levels contains the relationship between entities ?

external

conceptual

internal

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

which of the three levels describes how the data is stored?

external

conceptual

internal

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

what is abstraction?

providing a simplified view and hiding away the complex inner workings

making simple things more complicated

a new energy drink

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the two conceptual models we studied are?

context model and key model

key model and fully attributed model

context model and fully attributed model

fully attributed model and physical model

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

which of the following models contains the attribute names?

context model

fully attributed

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

how many phases are in the database life cycle (DBLC)?

6

5

7

8

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