Q21.Marks: +2.0UGC NET Paper 2: Computer Science 2nd January 2026 Shift 1
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: OLAP systems are optimized for complex queries and analysis. Reason R: OLTP systems are designed for transactions processing with large read-only queries.
In the light of the above statements, choose the most appropriate answer from the options given below
1.Both A and R are correct and R is the correct explanation of A
2.Both A and R are correct but R is NOT the correct explanation of A
3.A is correct but R is not correct✓ Correct
4.A is not correct but R is correct
Solution
The correct answer is A is correct but R is not correct.
Key Points
OLAP systems (Online Analytical Processing) are optimized for complex queries and analysis, making them ideal for tasks that involve multidimensional data analysis and decision support.
OLAP systems are designed to handle large amounts of data and provide quick responses to analytical queries.
OLTP systems (Online Transaction Processing), on the other hand, are designed for transaction processing and are optimized for a large number of small, short, and frequent operations like insert, update, and delete.
OLTP systems are not optimized for large read-only queries, which are typical in OLAP systems.
Hence, while the assertion regarding OLAP systems is correct, the reason provided in relation to OLTP systems is not accurate.
Additional Information
Key Features of OLAP Systems:
Support for complex analytical queries.
Use of multidimensional data models, such as star and snowflake schemas.
Data aggregation and summarization for decision-making purposes.
Examples include data warehouses and business intelligence tools.
Key Features of OLTP Systems:
Optimized for day-to-day transaction processing.
Handle large numbers of concurrent users and transactions.
Ensure data integrity and consistency through ACID properties.
Examples include banking systems, e-commerce platforms, and point-of-sale systems.
Differentiation Between OLAP and OLTP:
OLAP focuses on data analysis and reporting, while OLTP focuses on transaction processing.
OLAP systems are read-intensive, whereas OLTP systems are write-intensive.
OLAP systems typically work with historical data, while OLTP systems work with real-time data.
Important Points:
Understanding the distinction between OLAP and OLTP systems is crucial for designing efficient data management solutions.
Both systems serve different purposes and are integral to modern data-driven applications.
