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What is the default random engine?

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What is the default random engine?

(a) Random number engine that generates pseudo-random numbers

(b) Mersenne Twister 19937 generator generating 32-bit true random number

(c) Random number engine that generates true random numbers

(d) Mersenne Twister 19937 generator generating 32-bit pseudo random number

The question was posed to me in homework.

My question is based upon Generators in chapter Class Hierarchies, Library & Containers of C++

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Best answer
The correct choice is (a) Random number engine that generates pseudo-random numbers

Explanation: Default random engine is a random number engine that generates pseudo random numbers.

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