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
B. Sparse Matrix
C. Adjacency Matrix
D. Object–Attribute Matrix

7. Why are Big Data Matrices often sparse?

A. Data is random
B. Most entities have few interactions
C. Storage systems force zeros
D. All features are correlated

8. Which technology is used to process Big Data Matrices?

A. MS Word
B. Apache Spark
C. Notepad
D. PowerPoint

9. In a Time-Series Matrix, rows represent:

A. Features
B. Objects
C. Time points
D. Classes

10. The most basic form of data matrix is:

A. Sparse Matrix
B. Graph Matrix
C. Object–Attribute Matrix
D. Document–Term Matrix

---

Prepared by: Brajesh Jha