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Computer Chapter 4 : Topic 2.3
Dataset Structure
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In a student dataset containing Roll Number, Name, and Marks, what does the entire table represent?
Reasoning: The complete table is a dataset, also called a relation.
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In a school database table, each horizontal row usually represents which type of information structure?
Reasoning: Each row stores information about one object or entity.
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A table contains columns named Student_ID, Name, and Age. These columns are best described as:
Reasoning: Columns represent characteristics or properties of objects.
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If one row in a student table contains "101, Ali, 15", this row is called a:
Reasoning: A row containing details of one student is a record.
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Which statement correctly distinguishes a row from a column in a dataset table?
Reasoning: Rows hold records; columns hold attributes.
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In a library dataset, the column "Book Title" is an example of:
Reasoning: Book Title is a property describing each book.
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A dataset contains 500 students. What does each row most likely represent in the table?
Reasoning: Each row stores information about a single student.
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Why are columns often called attributes or properties in a dataset structure?
Reasoning: Attributes describe the features of stored objects.
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Which option correctly identifies a relation in database terminology?
Reasoning: A relation is another name for a table.
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A table contains columns "Employee_ID", "Department", and "Salary". How many attributes are present?
Reasoning: Each column represents one attribute, giving a total of three.
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Which situation best demonstrates the concept of a tuple in a dataset?
Reasoning: A tuple is another name for a row or record.
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In a dataset of products, the columns are Product_ID, Name, Price, and Quantity. What is the primary purpose of these columns?
Reasoning: Columns define the properties or attributes of each object in the dataset.
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