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TCS Placement Model Test 8

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Question : 40

Total: 40

Direction: Mark the best option
Which of the following are essential features of object-oriented programming languages?
1. Abstraction and encapsulation
2. Strictly-typedness
3. Type-safe property coupled with sub-type rule
4. Polymorphism in the presence of inheritance

1 and 2 only
1 and 4 only
1,2 and 4 only
1,3 and 4 only

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