TECHNICAL INTERVIEW QUESTIONS AND ANSWERS 11 TO 15



11.SOFTWARE DEVELOPMENT LIFE CYCLE:

         Software Development Lifecycle is the process used by the software industry to design, develop and test high quality software.
AIM: To produce high quality software that meet or exceeds the customer expectation, reaches completion of software within the given time.


12.WATERFALL MODEL:

         Waterfall Model was the first model to be introduced for the development of software. It is also called as Linear Sequential Life Cycle Model. In this model each phase should be completed before the next phase begins. So there will be no overlapping.
13.DATABASE MANAGEMENT SYSTEM:
 
A database is a collection of related data which represents some aspect of the real world. DBMS is a software package designed to define, manipulate, retrieve and manage data in a database.


14.DIFFERENT TYPES OF DBMS:


  1. Hierarchical Databases
  2. Network Databases
  3. Relational Databases
  4. Object Oriented Databases
  5. ER Model Databases
  6. Graph Databases
  7. Document Databases

15.OBJECT RELATIONAL DATABASE:

         It is referred as ORD or ORDBMS. This is similar to relational database but with an object oriented database model. Classes, objects and Inheritance are directly supported in database schemas and in the language of query.

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