Govt Exams
A Primary Key uniquely identifies each record and cannot contain null values
REST stands for Representational State Transfer, an architectural style for web services
Inheritance allows a class to inherit properties and methods from another class (parent/base class)
Stack follows LIFO principle. Queue follows FIFO. Array and Tree are not strictly LIFO/FIFO structures
Following order of operations: y * 2 = 10 * 2 = 20. Then x + 20 = 5 + 20 = 25. Wait, output is 25, not 30. Let me recalculate: x + y * 2 = 5 + 10*2 = 5 + 20 = 25
12, 24, 36, 48 are all multiples of 12. 58 is not a multiple of 12
A dog barks, similarly a cat meows. This is a sound association analogy
Each number is double the previous: 2, 4, 8, 16, 32, 64. Pattern is multiplication by 2
Sum = Average × Count = 30 × 5 = 150
By transitivity, if a < b and b < c, then a < c