1
A DFD provides no information about the timing or ordering of processes, or about whether processes will operate in sequence or in parallel.
A) True
B) False
2
The first component of the DFD is known as a ....... Common synonyms are a bubble, a function, or a transformation.
A) Flow
B) Process
C) Square
D) Entity
3
Initially a context diagram is drawn, which is a simple representation of the entire system under investigation. This is followed by a level 1 diagram
A) level 0 diagram
B) level 1 diagram
C) level A diagram
D) Both A & B
4
Context Diagram defines the scope of the system by identifying the system boundary
A) Context Diagram
B) Level 0 DFD
C) Level 1 DFD
D) Level 2 DFD
5
A .... is represented graphically by an arrow into or out of a process
A) Process
B) Entity
C) Level
D) Flow
6
Composite data flow on one level can be split into its component data flows on the next level - but new data cannot be added and all data in the composite must be included in the sub-flows
A) True
B) False
7
A data flow may or may not be attached to at least one process
A) True
B) False
8
....... is to organize the overall DFD in a series of levels so that each level provides successively more detail about a portion of the level above it.
A) Split DFDs
B) LEVELED DFDs
C) Flow DFDs
D) All of Above
9
Objects in a set of DFDs have unique names
A) True
B) False
10
Lowest level DFDs may add new data flows to represent exception handling, i.e., error messages
A) True
B) False