Specification Grid Computer 12

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Sample Question Bank Grade 12

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Database 1.        Differentiate the centralized and distributed database system. 2.        What are the Purpose/Importance of Normalization? Describe with example of 1NF, 2NF, 3NF. 3.        Explain ER Diagram in DBMS. 4.        Describe the Normalization in DBMS. Advantages of it. 5.        Explain the different types of data integrity in DBMS. 6.        What is SQL? Describe the different types of Statements with example. 7.        What is database model? Explain its types with advantages and disadvantages. 8.        What is DBMS? Explain the advantages of DBMS. 9.        Explain advantages of decentralized database. 10.    What is Relational Database Management System? List advantages and disadvantages of ...
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Important Questions for XII

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  Unit-1- Database Management System - 8 Marks 1. What is Database and DBMS? List out the advantages and disadvantages of DBMS. 2. Explain the different models of DBMS with advantages and disadvantages. 3. Write differentiate between centralized and distributed database systems. 4. Who is DBA? What are the major responsibilities of DBA? 5. What is data integrity in DBMS? Explain its types. 6. What is normalization? Explain the normalization process with examples. 7. Define the following terms.            a) Data Dictionary      b) Primary Key      c) Relationship      d) DML           e) SQL      f) Data Integrity      g) DDL      h) Data Security      i) Database System 8. What are the different types of SQL commands. Write with example.  Unit-2- Data Communication and Networking - 9 Marks 1...
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Question Collection-11

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 Computer System 1. Draw the block diagram of computer system. Explain the input and processing unit. 2. Explain different types of system bus. Different types of system bus. Differentiate between primary and secondary memory. 3. Define the memory structure of computer system. Explain cache, main and secondary memory with purpose. 4. What is computer system? Explain different components with their function. 5. What is generation of computer? Explain the different generations of computer with their major features. 6. What is CPU? Explain the major units of CPU. 7. Explain any five fields of usage of computer in present days. 8. Explain the role of memory in a computer and differentiate between main memory and auxiliary storage. 9. What do you mean by peripherals? Differentiate between impact and non-impact printers. 10. Discuss about how the development of the PCs(Personal computer) has extended the use of computer in present days. 11. Differentiate between analog and digital comput...
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