CompSci

 1) The .Net framework is a revolutionary platform that helps you to write the following types of applications. a) Windows applications b) Web applications c) Web services d) All of These And: D 2) Built-in reference types are: a) object b) dynamic c) string d) All of these Ans: D 3)  In C#, type casting has two forms. a) Implicit  b) Explicit c) both A & B d) None of these Ans: B 4) ______________ is defined 'as the process of enclosing one or more items within a physical or logical package'. a) Encapsulation b) Inheritance c) abstraction d) polymorphism Ans: A 5) An access specifier defines the ______________ of a class member. a) scope b) visibility c) scope and visibility d) None of these Ans: B 6) The __________keyword is used for creating a structure. a) class b) interface c) struct  d) package Ans: C 7) __________...

  1. ________________ is a subject oriented, integrated, time-variant, and non-volatile collection of data. a) Data Mining             b) data warehouse       c) data Processing       d) Database Ans: data warehouse 2. ______________ supports knowledge discovery by finding hidden patterns and associations, constructing analytical models, performing classification and prediction. a) Data Mining             b) data warehouse       c) Analytical Processing          d) Information Processing Ans: Data Mining 3. Metadata repository is an ___________ part of a data warehouse system. a) formal          b) directory       c) integral         d) All of these Ans:...

Overview In a deductive database system we typically specify rules through a declarative language — a language in which we specify what to achieve rather than how to achieve it. An inference engine (or deduction mechanism ) within the system can deduce new facts from the database by interpreting these rules. The model used for deductive databases is closely related to the relational data model, and particularly to the domain relational calculus formalism (see Section 6.6). It is also related to the field of logic programming and the Prolog language. The deductive database work based on logic has used Prolog as a starting point. A variation of Prolog called Datalog is used to define rules declaratively in conjunction with an existing set of relations, which are themselves treated as literals in the language. Although the language structure of Datalog resembles that of Prolog, its operational semantics—that is, how a Datalog program is executed—is still different. A deductive ...

Introduction to Spatial Databases •        Spatial databases incorporate functionality that provides support for databases that keep track of objects in a multidimensional space. •        For example, cartographic databases that store maps include two-dimensional spatial descriptions of their objects—from countries and states to rivers, cities, roads, seas, and so on. •        The systems that manage geographic data and related applications are known as Geographical Information Systems (GIS). •        Spatial Database are used in areas such as environmental applications, transportation systems, emergency response systems, and battle management. •        Also they are use as meteorological databases for weather information, are three-dimensional, since temperatures and other meteorological information are related to three-di...