Question
Which of the following is a characteristic feature of a
Relational Database Management System (RDBMS)?Solution
One of the fundamental characteristics of a Relational Database Management System (RDBMS) is its ability to enforce data integrity through the use of constraints such as primary keys, which ensure that each row is uniquely identified, and foreign keys, which maintain referential integrity between related tables. This feature helps prevent data anomalies and ensures consistency within the database. Why Other Options are Wrong: a) RDBMS is designed for structured data, not unstructured data. c) RDBMS uses a relational model, not a hierarchical one. d) RDBMS is designed to support multi-user environments with concurrent access. e) RDBMS strictly follows ACID (Atomicity, Consistency, Isolation, Durability) properties, which guarantee reliable transactions.
What is the angle traced by the hour hand in 18 minutes?
- Two chords PQ and RS intersect each other at point ‘A’ inside the circle. If PQ = 5 cm, RA = 3.6 cm and AQ = 1.8 cm, find the length of RS.
The perimeter of a rectangular field is 240 meters, and its length is 20% more than its breadth. What is the area of the field?
In triangle GHI, a point J lies on side HI such that ∠GJH = ∠GJI. If GH = 50 cm, GI = 30 cm, and HI = 40 cm, find the length of HJ.
In Fig. if QT ⊥ PR, ∠ TQR = 40 ° and ∠ SPR = 30 ° , find x and y.
If G is the centroid and AD, BE, CF are three medians of ∆ABC with area 78 cm² , then the area of ∆EFG is?
In ∆ABC , G is the centroid , AB = 20 cm, BC= 24 cm and AC = 28 cm , find GD, where D is the mid-point of BC?
If I is the incentre of ΔABC , if ∠ BAC = 700 , then what is the measure of ∠ BIC?