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Showing posts from January 11, 2026

Test - 1

Quiz: Big Data Matrix Instructions: Enter your details, answer all questions, and click Submit Quiz . Name: Roll Number: 1. What is a Big Data Matrix? A. A small table stored in Excel B. A large-scale matrix representation of big data C. A graphical visualization tool D. A database index 2. In an Object–Attribute Matrix, rows represent ______. A. Attributes B. Columns C. Objects or entities D. Algorithms 3. Which matrix is commonly used in recommendation systems? A. Document–Term Matrix B. Object–Attribute Matrix C. User–Item Matrix D. Time-Series Matrix 4. A Sparse Matrix is characterized by: A. All values are non-zero B. Mostly negative values C. Mostly zero values D. Equal rows and columns 5. Document–Term Matrix is mainly used in: A. Image processing B. Network routing C. Natural Language Processing D. Sorting algorithms 6. Which matrix represents relationships between nodes? A. Time-Series Matrix...