SQA UPDATED ACTUAL Exam Questions and CORRECT
Answers
What is black box testing? - Testing without any knowledge of the inner workings of the item
being tested. E.g., when black box testing is used to software engineering, the tester would only
know the "valid" inputs and what the desired outputs should be, but not how the program in
reality comes at those outputs. It's because of this that black box testing can be considered
validation with reference to the specifications, no additional knowledge of the application under
test is necessary. Because this reason, the tester and the programmer can be independent of one
another, avoiding coder bias towards his own work. This process of test design is applicable to
all levels of software testing: unit, integration, functional testing, system and acceptance. The
higher the level, and therefore the greater and a lot complex the box, the more one is forced to
use black box testing to simplify. Although this process can uncover unimplemented parts of the
specification, one can't be certain that all existent paths are validated.
Advantages of Black Box Testing
1. More efficient on larger units of code than white box testing
2. Tester needs no knowledge of implementation, including particular programming languages
3. Tester and coder are autonomous of each other
4. Validations are done from a End user's point of view
5. Will assist to reveal any ambiguities or inconsistencies in the specifications
6. Test cases can be planned as soon as the specifications are done
Disadvantages of Black Box Testing
1. Just a low number of potential inputs can actually be validated, to test every possible input
stream would take almost forever
2. Without clean and concise specs, test cases are hard to design
3. There can be unnecessary repetition of test inputs if the tester is not informed of test cases the
programmer has already tried
4. Might allow for many program
, Describe a bug? - A mismatch between actual behavior of a software application and its intended
(expected) behavior. We learn about expected behavior from requirements, specifications, other
technical documentation.
What is the most important impact QA can have on a product development process? -
*Clarifying requirements
*Bringing down percentage of code re-written due to the change in requirements
What is Negative testing? - Negative testing is aimed at showing that software handles properly
situations in which user acts not as user is supposed to act (invalid inputs, unreasonable
selections of settings, etc.)
What is the software development life cycle? - A conceptual model used in project management
that describes the stages involved in an information system development project, from an initial
feasibility study through maintenance of the completed application.
What is grey box testing? - Gray box testing is using structural, design, and environment
information (complete or incomplete) to expand or focus black box testing and to enhance testing
productivity by using appropriate methods and tools.
Describe SDLC - Planning
Analysis
Requirements
Design
Development
Testing
Implementation/release
Maintenance
Answers
What is black box testing? - Testing without any knowledge of the inner workings of the item
being tested. E.g., when black box testing is used to software engineering, the tester would only
know the "valid" inputs and what the desired outputs should be, but not how the program in
reality comes at those outputs. It's because of this that black box testing can be considered
validation with reference to the specifications, no additional knowledge of the application under
test is necessary. Because this reason, the tester and the programmer can be independent of one
another, avoiding coder bias towards his own work. This process of test design is applicable to
all levels of software testing: unit, integration, functional testing, system and acceptance. The
higher the level, and therefore the greater and a lot complex the box, the more one is forced to
use black box testing to simplify. Although this process can uncover unimplemented parts of the
specification, one can't be certain that all existent paths are validated.
Advantages of Black Box Testing
1. More efficient on larger units of code than white box testing
2. Tester needs no knowledge of implementation, including particular programming languages
3. Tester and coder are autonomous of each other
4. Validations are done from a End user's point of view
5. Will assist to reveal any ambiguities or inconsistencies in the specifications
6. Test cases can be planned as soon as the specifications are done
Disadvantages of Black Box Testing
1. Just a low number of potential inputs can actually be validated, to test every possible input
stream would take almost forever
2. Without clean and concise specs, test cases are hard to design
3. There can be unnecessary repetition of test inputs if the tester is not informed of test cases the
programmer has already tried
4. Might allow for many program
, Describe a bug? - A mismatch between actual behavior of a software application and its intended
(expected) behavior. We learn about expected behavior from requirements, specifications, other
technical documentation.
What is the most important impact QA can have on a product development process? -
*Clarifying requirements
*Bringing down percentage of code re-written due to the change in requirements
What is Negative testing? - Negative testing is aimed at showing that software handles properly
situations in which user acts not as user is supposed to act (invalid inputs, unreasonable
selections of settings, etc.)
What is the software development life cycle? - A conceptual model used in project management
that describes the stages involved in an information system development project, from an initial
feasibility study through maintenance of the completed application.
What is grey box testing? - Gray box testing is using structural, design, and environment
information (complete or incomplete) to expand or focus black box testing and to enhance testing
productivity by using appropriate methods and tools.
Describe SDLC - Planning
Analysis
Requirements
Design
Development
Testing
Implementation/release
Maintenance
