Database Concepts — Question 15
Back to all questionsGive the terms for each of the following:
(a) Collection of logically related records.
(b) DBMS creates a file that contains description about the data stored in the database.
(c) Attribute that can uniquely identify the tuples in a relation.
(d) Special value that is stored when actual data value is unknown for an attribute.
(e) An attribute which can uniquely identify tuples of the table but is not defined as primary key of the table.
(f) Software that is used to create, manipulate and maintain a relational database.
(a) Table
(b) Data dictionary
(c) Primary key
(d) NULL
(e) Alternate Key
(f) Database Management System (DBMS)
Key Concepts Covered
This question tests your understanding of the following concepts from the chapter Database Concepts: Question, Terms, Collection, Logically, Related, Records. These are fundamental topics in Informatics Practices that students are expected to master as part of the CBSE Class 11 curriculum.
A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Informatics Practices papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This Question
Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to Remember
- Read the question carefully and identify all parts before answering.
- Use the terminology specific to this subject and chapter.
- Review the textbook content for this chapter before attempting questions.
- Practice writing concise, well-structured answers within time limits.
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