CS403P Quiz 2 Set 2

Q1. Arrow symbol in Data Flow Diagram represents __________.

1. System components
2. Decision making
3. Entity
4. Flow of data

Correct answer: Flow of data

Q2. A simple rectangle symbol in Data Flow Diagram is used to represent ___________.

1. Processes
2. External Entities
3. Level
4. Data Store

Correct answer: External Entities

Q3. Which of the following diagram is most commonly use for designing databases?

1. Sequence Diagram
2. Tree Diagram
3. Data Flow Diagram
4. Block Diagram

Correct answer: Data Flow Diagram

Q4. What does an oval or rounded rectangle represent in Data Flow Diagram?

1. Entity
2. Processes
3. Data Store
4. System Component

Correct answer: Processes

Q5. In a Data Flow Diagram, _________ symbol is used to express the convergence of several data flow connections to a single point.

1. Collector
2. Merger
3. Diamond
4. Oval

Correct answer: Collector

Q6. A Context Level Data Flow Diagram shows ___________.

1. Input/Output to and from the process and interaction with external entities
2. Data Store only
3. Detailed working of the system
4. External entities only

Correct answer: Input/Output to and from the process and interaction with external entities

Q7. A DATA STORE in Data Flow Diagram is represented by __________.

1. An arrow
2. Diamond symbol
3. Rectangle open on right width and left width of the rectangle drawn with double lines
4. Rectangle open on left width and right width of the rectangle drawn with single line

Correct answer: Rectangle open on right width and left width of the rectangle drawn with double lines