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What are the various types of system testing?
1. Recovery testing - is planned to check the system's ability to recover from failures.
2. Security testing - determines that system protection mechanism stop improper penetration or data alteration.
3. Stress testing - verifies breakpoint of a system to establish maximum service level.
4. Performance testing - evaluates the run time performance of the software, especially real-time software.
Q. What is the use of a data flow diagram? Explain the important concepts of data flow diagram. Ans. A data flow diagram is utilized to show the functional view of an applica
explain about transaction and transform mapping
Define query language? A query is a statement requesting the retrieval of information. The portion of DML that includes information retrieval is known as a query language.
Dynamic and static metrics Dynamic metrics are closely related to software quality attributes It is relatively easy to measure the response time of a system (performance
You are to create a decision table to help you decide what to do for the day. If it is a weekday and it is not a holiday, then you go to work. However, if it is a weekday and it
Explain in detail the design concepts Abstraction Data abstraction Functional abstraction •Control abstraction Information hiding •Every module in the s
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Q. Applicability with reference to software reliability models? Applicability : It is another important characteristic of a model. The model must be judged by its degree of a
What are the various types of coupling? i. Data coupling - The data coupling is possible by parameter passing or data interaction. ii. Control coupling - The modules share r
What we called the problem arising in development of software Problems arising in the development of software is called as crisis. It includes problems arising in the process o
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