Engineering Questions with Answers - Multiple Choice Questions
Software Engineering MCQ – Reverse Engineering
1 - Question
In reverse engineering process, what refers to the sophistication of the design information that can be extracted from the source code?
a) interactivity
b) completeness
c) abstraction level
d) direction level
View Answer
Answer: c
Explanation: None.
2 - Question
In reverse engineering, what refers to the level of detail that is provided at an abstraction level?
a) interactivity
b) completeness
c) abstraction level
d) directionality
View Answer
Answer: b
Explanation: None.
3 - Question
The core of reverse engineering is an activity called
a) restructure code
b) directionality
c) extract abstractions
d) interactivity
View Answer
Answer: c
Explanation: The engineer must evaluate the old program and extract a meaningful specification of the processing that is performed, the user interface that is applied, and the program data structures or database that is used.
4 - Question
What have become de rigueur for computer-based products and systems of every type?
a) GUIs
b) Candidate keys
c) Object model
d) All of the mentioned
View Answer
Answer: a
Explanation: Therefore, the redevelopment of user interfaces has become one of the most common types of re-engineering activity. But before a user interface can be rebuilt, reverse engineering should occur.
5 - Question
Forward engineering is also known as
a) extract abstractions
b) renovation
c) reclamation
d) both renovation and reclamation
View Answer
Answer: d
Explanation: Forward engineering, also called renovation or reclamation , not only recovers design information from existing software, but uses this information to alter or reconstitute the existing system in an effort to improve its overall quality.
6 - Question
Reverse engineering is the process of deriving the system design and specification from its
a) GUI
b) Database
c) Source code
d) All of the mentioned
View Answer
Answer: c
Explanation: None
7 - Question
Reverse engineering techniques for internal program data focus on the definition of classes of objects.
a) True
b) False
View Answer
Answer: a
Explanation: This is accomplished by examining the program code with the intent of grouping related program variables.
8 - Question
Which of the following steps may not be used to define the existing data model as a precursor to re-engineering a new database model:
a) Build an initial object model
b) Determine candidate keys
c) Refine the tentative classes
d) Discover user interfaces
View Answer
Answer: d
Explanation: Once information defined in the preceding steps is known, a series of transformations can be applied to map the old database structure into a new database structure.
9 - Question
Much of the information necessary to create a behavioral model can be obtained by observing the external manifestation of the existing
a) candidate keys
b) interface
c) database structure
d) none of the mentioned
View Answer
Answer: b
Explanation: The GUI or the interface provides the base for the behavioral model.
10 - Question
Extracting data items and objects, to get information on data flow, and to understand the existing data structures that have been implemented is sometimes called
a) data analysis
b) directionality
c) data extraction
d) client applications
View Answer
Answer: a
Explanation: None.
11 - Question
Reverse engineering and Re-engineering are equivalent processes of software engineering.
a) True
b) False
View Answer
Answer: b
Explanation: Re engineering is a process of analysis and change whereby a system is modified by first reverse engineering and then forward engineering.
12 - Question
Transformation of a system from one representational form to another is known as
a) Re-factoring
b) Restructuring
c) Forward engineering
d) Both Re-factoring and Restructuring
View Answer
Answer: d
Explanation: None.
13 - Question
Which of the following is not an objective of reverse engineering?
a) to reduce maintenance effort
b) to cope with complexity
c) to avoid side effects
d) to assist migration to a CASE environment
View Answer
Answer: d
Explanation: Reverse engineering helps us to detect side effects rather than avoiding them.