SYSTEMS ANALYSIS AND DESIGN 10TH EDITION By HARRY J - Test Bank

SYSTEMS ANALYSIS AND DESIGN 10TH EDITION By HARRY J – Test Bank

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 

 

1. Processes contain the business _____ that transform data and produce the required results.

 

1. logic
   b. dictionary
2. structures
3. records

 

Analysis:

1. Correct.
2. Incorrect. See [Page 181]
3. Incorrect. See [Page 181]
4. Incorrect. See [Page 181]

 

2. A data _____, which is represented as a line with a single or double arrow on a DFD, is a path for data to move from one part of an information system to another.

 

1. element
   b. repository
2. store
3. flow

 

Analysis:

1. Incorrect. See [Page 182]
2. Incorrect. See [Page 182]
3. Incorrect. See [Page 182]
4. Correct.

 

3. On lower-level DFDs with multiple processes, it is recommended that no more than _____ process symbols be included.

 

1. 6
2. 7
3. 8
4. 9

 

Analysis:

1. Incorrect. See [Page 187]
2. Incorrect. See [Page 187]
3. Incorrect. See [Page 187]
4. Correct.

 

4. When a data flow diagram is partitioned, the higher-level diagram is referred to as the _____ diagram.

 

1. control
2. context
3. parent
4. child

 

Analysis:

1. Incorrect. See [Page 191]
2. Incorrect. See [Page 191]
3. Correct.
4. Incorrect. See [Page 191]

 

5. Complex systems, which have many processes, require analysts to create lower-level DFDs until all processes are identified as _____.

 

1. control structures
2. types
3. functional primitives
4. sinks

Analysis:

1. Incorrect. See [Page 192-193]
2. Incorrect. See [Page 192-193]
3. Correct.
4. Incorrect. See [Page 192-193]

 

6. A(n) _____, also known as a data structure, is a meaningful combination of related data elements that is included in a data flow or retained in a data store.

 

1. field
2. record
3. logical structure
4. domain

 

Analysis:

1. Incorrect. See [Page 197]
2. Correct.
3. Incorrect. See [Page 197]
4. Incorrect. See [Page 197]

 

 

7. _____, which is an attribute that is recorded and described in a data dictionary, refers to whether a data element contains numeric, alphabetic, or character values.

 

1. Selection
2. Iteration
3. Type
4. Alias

 

Analysis:

1. Incorrect. See [Page 199]
2. Incorrect. See [Page 199]
3. Correct.
4. Incorrect. See [Page 199]

 

8. Modular design is based on combinations of three logical structures, which are called sequence, selection, and _____.

 

1. iteration
2. length
3. type
4. alias

 

Analysis:

1. Correct.
2. Incorrect. See [Page 204]
3. Incorrect. See [Page 204]
4. Incorrect. See [Page 204]

 

9. A process that continues to print payroll checks until it reaches the end of the payroll file is an example of _____.

 

1. balancing
2. looping
3. leveling
4. sequencing

 

Analysis:

1. Incorrect. See [Page 205]
2. Correct.
3. Incorrect. See [Page 205]
4. Incorrect. See [Page 205]

 

 

10. A(n) _____ table can be simplified because some rules might be duplicates, redundant, or unrealistic.

 

1. Yourdon
2. Gane and Sarson
3. diverging
4. multicondition

 

Analysis:

1. Incorrect. See [Page 207]
2. Incorrect. See [Page 207]
3. Incorrect. See [Page 207]
4. Correct.

 

1. The four basic symbols used in data flow diagrams represent processes, _______________, data flows, and data stores.

Answer:

entities. See page 180.

2. In a data flow diagram, the _______________ symbol for a data store is a flat rectangle that is open on the right side and closed on the left side.

Answer:

Gane and Sarson. See page 184.

3. A(n) _______________ is a top-level view of an information system that shows the system’s boundaries and scope.

Answer:

context diagram. See page 188.

4. Two techniques, _______________ and balancing, must be used if lower-level data flow diagrams are being created.

Answer:

leveling. See page 192.

5. A(n) _______________, which is the smallest piece of data that has meaning within an information system, may also be referred to as a data item or field.

Answer:

data element. See page 197.

 

6. Modern _______________ tools can help in simplifying the difficult task of maintaining full and accurate documentation for complex systems.

Answer:

CASE. See page 198.

7. Decision tables are an example of a(n) _______________ tool that can be used to create accurate, complete, and concise models.

Answer:

process description. See page 204.

8. One rule to follow when writing in _______________ is to use limited vocabulary, including standard terms used in the data dictionary and specific words that describe the processing rules.

Answer:

structured English. See page 205.

9. A(n) _______________ is a graphical representation of the conditions, actions, and rules found in a decision table.

Answer:

decision tree. See page 210.

10. The additional cost and time associated with developing a logical and physical model of a system is one disadvantage of the _______________

Answer:

four-model. See page 211.

 

1. A gray hole is a process that produces output, but has no input data flow.
   T
   Incorrect. See page 183.
   F
   Correct.

 

2. An entity name is the singular form of a department, outside organization, other information system, or person.
   T
   Correct.
   F
   Incorrect. See page 185

 

3. Diagram 0 contains a single process symbol and provides the most general view of an information system.
   T
   Incorrect. See page 189.
   F
   Correct.

 

4. In situations in which the same data travels to two or more different locations, it is appropriate to use a diverging data flow.
   T
   Correct.
   F
   Incorrect. See page 191.

 

5. As a rule, data flow diagrams should only show a data store when two or more processes use that data store.
   T
   Correct.
   F
   Incorrect. See pages 193-194.
6. The default value is the value for a data element if a value otherwise is not entered for it.
   T
   Correct.
   F
   Incorrect. See page 199.

 

7. Although each data element must be documented in the data dictionary, documenting the data flows isn’t necessary.
   T
   Incorrect. See page 200.
   F
   Correct.

 

8. Typical characteristics of a data store include the data store name, a description, alternate name(s), attributes, and volume and frequency.
   T
   Correct.
   F
   Incorrect. See page 202.

 

9. Pseudocode is a subset of standard English that describes logical processes clearly and accurately.
   T
   Incorrect. See page 205.
   F
   Correct.

 

10. A decision table is a physical structure that shows every combination of conditions and outcomes.
    T
    Incorrect. See page 206.
    F
    Correct.