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Intro to DFD 2

Authored by Prynze Reyes

Computers

12th Grade

Intro to DFD 2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a DFD external entities are represented by a

Circle

Diamond shaped box

Ellipse

Rectangle

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

External Entities may be a

Source of input data only

Source of input data or destination of results

Destination of results only

Repository of data

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A data store in a DFD represents

A disk store

A repository of data

A random access memory

A sequential file

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

By an external entity we mean a

A unit which is not part of DFD

A unit external to the system being designed

Unit outside the system whose behaviour is independent of the system being designed

Unit outside the system being designed which can be controlled by an analyst

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A data flow can

Only enter a data store

Either enter or leave a data store but not both

Only leave a data store

Enter or leave a data store

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A circle in a DFD represents

An input unit

A data store

A process

A an external entity

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

External entity to process

Process to external entity

Process to store and back

Data can flow from

Process to process

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