Answer:
The object oriented software engineering approach is basically focus on the attention for capture the given structure and conduct the data frameworks in the form of small module which consolidates the information and the procedure.
The principle and aim of the Object Oriented Design (OOD) is that improving the quality of the system analysis and increase its productivity and more usable efficiently.
There are different phases in the object oriented software engineering approach are as follows:
- Firstly, we start analyze and define the particular system
- Then, construct the analysis model based on the above approach of the specific system.
- We verify the correctness of the system by using the testing.
Answer:
A concatenated index, also known as multi-column, composite, or combined index, is one index across multiple columns. In the case of queries with multiple equality conditions, even though multiple single-column indexes can result in a very good performance, a single concatenated index solution is preferable.
Answer:
The first IBM PC virus in the "wild" was a boot sector virus dubbed (c)Brain, created in 1986 by Amjad Farooq Alvi and Basit Farooq Alvi in Lahore, Pakistan, reportedly to deter unauthorized copying of the software they had written. The first virus to specifically target Microsoft Windows, WinVir was discovered in April 1992, two years after the release of Windows 3.0.
Explanation:
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Answer:
A.Use rounding to get -6(0.2), and then multiply. and D. use front end estimation to get -6(0.2), and multiply. and B.
Explanation:
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