Data abstraction: In a database the structure of a database is a complex and it is made easy to the user to access data form a database, in a database the developers hide the internal irrelevant details from users. The process of hiding the irrelevant data from user is called Database abstraction. Level of Data […]
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Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks. Time: 1.30 hrs. Full Marks: 30 Group ‘A‘ (Long answer questions) Attempt any two questions. 2×7.5=15 a) Explain if-else control structure with example. 3.5 b) Define the terms inheritance and polymorphism. 2+2 […]
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Group A: Multiple Choice Questions (9 x 1=9) Tick the best alternative. Which one of the following is an input device? speaker b) printer c) monitor d) mouse 2. Which of the following is NOT a bus type? Address bus b) Data bus c) Memory bus d) Control bus 3. How to represent Boolean F(x,y)=x.y […]
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Database Models Database model provides the necessary means to active data abstraction. There different database models: Hierarchical Database model Network model Relational Database Model Object oriented database model Object relational database model E-R Model Hierarchical Database model: Data are arrange in tree like structure which is also called Top Down approach or parent child structure. […]
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Concept of Database A database is a collection of related data which is organized to easy to access, update and manages. Any small portion of information is a data and also called facts and figure is data. Actually a database piece of information is stored and performs various operations. The basic Building Block of database […]
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Hello Everyone here Gyanchautari present Computer Operator Multiple Choice Question (MCQ) Set 4 for those who are prepare computer operator.
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