Thursday 3 May 2012

SOFTWARE ENGINEERING


Part 1 of 1 -     100.0 Points

Question 1 of 10    10.0 Points
Requirements can be classified in to two types, namely, functional requirements and non-functional requirements

   True

 False

Answer Key: True


Question 2 of 10    10.0 Points
Some examples of non-functional requirements are.

1.Number of significant digits to which accuracy should be maintained in all numerical calculations is 10
2.The response time of the system should always be less than 5 seconds
3.The software should be developed using C language on a UNIX based system
4.The matrix diagonalisation routine should zero out all off-diagonal elements, which are equal to or less than 10-3
5.Experienced officers should be able to use all the system functions after a total training of two hours. After this training, the average number of errors made by experienced officers should not exceed two per day.



     True

 False
Answer Key: True



Question 3 of 10    10.0 Points
Every software system has the following essential characteristics:

        A. It has processes which collaborate with each other to generate the outputs.  
   

    B. All the above  
   

    C. It has a boundary. The boundary separates what is with in system scope and what is outside.  
   

    D. The system may also use data stores to store data which has a life beyond the system.  
   

    E. These processes operate on data by creating, modifying, destroying, and querying it.  
   

    F. It takes inputs from external agents and generates outputs.  
Answer Key: B



Question 4 of 10    10.0 Points
ERD complements DFD. While DFD focuses on data and the relationships between them, ERD focuses on processes and data flow between them
     True

 False

Answer Key: False



Question 5 of 10    10.0 Points
Polymorphism: - It is the means by which an operation behaves differently in different contexts.
     True

 False

Answer Key: True


Question 6 of 10    10.0 Points
Encapsulation: This helps in controlling the visibility of internal details of the objects. It improves security and integrity of data
      True

 False
Answer Key: True


Question 7 of 10    10.0 Points
There are 4 types of Abstraction, namely Entity, Action, Virtual machine & Coincidental.
 True

 False

Answer Key: True


Question 8 of 10    10.0 Points
There can be more than one hash fields on a file.

 True

 False

Answer Key: False



Question 9 of 10    10.0 Points
Concurrency refers to multiple transactions accessing the same database at the same time. In a system which allows concurrency, some kind of control mechanism has to be in place to ensure that concurrent transactions do not interfere with each other.

 True

 False

Answer Key: True



Question 10 of 10    10.0 Points
Software genetic development process contains three genetic phrases namely
    A. Software engineering, Definition, Coding  
   

    B. Definition, development, maintenance  
   

    C. Coding, design, Software engineering  
   

    D. Design, Coding, Development  
   

    E. Development, Definition, Testing  

Answer Key: B

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