Complete the mcq:
1 Functional decomposition is a repetitive process of breaking the description or perspective of a system down into finer and finer detail.
A True
B False
2 The way a user can move from one display to another best describes
A Dialogue sequence
B Transition plan
C Menu-driven interface
D Screen sequence
E Computer interface
3 Which of the following focuses on how information is provided to and captured from users?
A Structure chart
B Flow chart
C Entity-relationship diagram
D PERT diagram
E Interface and dialogue design
4 The number of entity types that participate in a relationship refers to
A Cardinality
B Association
C Count
D Degree
E Normalization
5 The primary deliverable from the conceptual data-modeling step within the analysis phase is
A A state-transition diagram
B An entity-relationship diagram
C A context data flow diagram
D A decision table
E Structured English
6 Desired features are those that users could live without but that are used to select between design strategies that are of almost equal value in terms of essential features.
A True
B False
7 One of the primary purposes of a DFD is to represent time, giving a good indication of whether data flows occur constantly in real time, once a day, or once a year.
A True
B False
8 The calculation of an employee's salary would be represented on a data-flow diagram as a(n)
A Data flow
B Source
C Data store
D Process
E Action stub
9 During systems design, a conceptual data model with attributes is prepared.
A True
B False
10 An entity instance is a single occurrence of an entity type.
A True
B False
11 When designing textual output, you should use single spacing wherever possible.
A True
B False
12 During systems implementation and operation
A A conceptual data model (E-R with attributes) is prepared
B A logical model (relational) is prepared
C Physical files and database designs are prepared
D An enterprise-wide data model is prepared
E Database and file definitions are prepared
13 The top-down approach to data modeling derives a data model from an intimate understanding of the nature of the business.
A True
B False
14 Which of the following is a guideline for displaying text?
A Use double spacing if space permits
B Do not hyphenate words between lines
C Left-justify text and leave a ragged right margin
D Display text in mixed upper- and lowercase and use conventional punctuation
E All of the above are guidelines for displaying text
15 Data contained on a customer order form would be represented on a data-flow diagram as a
A Process
B Data flow
C Source
D Sink
E Relationship
16 Completeness, consistency, timing, iterative development, and primitive DFDs are guidelines for drawing DFDs.
A True
B False
17 Which of the following is a true statement regarding a data store?
A Data can move directly from one data store to another data store
B Data stores illustrate relationships among entities
C A data store has a noun phrase label
D Data can move from an outside source to a data store
E A data store shows data in motion
18 Designing usable forms and reports requires your active interaction with users.
A True
B False
19 The most common format used for data modeling is
A State-transition diagramming
B Entity-relationship diagramming
C Process modeling
D Logic modeling
E A flowchart
20 A data-flow diagram that represents a system's major processes, data flows, and data stores at a high level of detail refers to a
A Context diagram
B Level-1 diagram
C Level-0 diagram
D Level-00 diagram
E Logic diagram
21 Each of the following is a guideline for displaying text except
A Use abbreviations and acronyms instead of full text
B Do not hyphenate words between lines
C Left-justify text and leave a ragged right margin
D Display text in mixed upper- and lowercase and use conventional punctuation
E Use double spacing if space permits
22 Designing usable forms and reports requires
A Prototyping
B Data modeling
C Active interaction with end users
D Process modeling
E Using structured analysis
23 While essential features help screen out possible solutions, desirable features help compare alternative design strategies.
A True B False
24 The names of data stores on primitive-level data flow diagrams often correspond to the names of data entities in entity-relationship (E-R) diagrams.
A True
B False
25 A data flow represents data in motion, moving from one place in the system to another.
A True
B False