Rust Intermediate Quiz 5
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Quiz 5
1. How many ways can a closure capture its environment?
3 (Fn, FnMut, FnOnce)
1 (By value only)
2 (By value or by reference)
2. Which trait is used to define custom cleanup logic?
Clean
Finalize
Drop
3. What is the benefit of using 'Iterator::collect'?
It deletes the collection
It transforms an iterator into a concrete collection
It sorts the elements
4. What does 'std::mem::replace' do?
Swaps the value at a destination with a new one
Deletes a variable
Compares two memory locations
5. What is a 'raw pointer' in Rust?
A faster reference
A pointer to a file
A pointer that bypasses safety checks
6. What is 'monomorphization'?
A memory leak
Generating specific code for each generic type used
Converting a struct into an enum
7. Are slices (&[T]) fixed-size or growable?
Fixed-size
Growable
It depends on the allocator
8. What is an 'associated constant'?
A constant that changes
A constant global variable
A constant value defined as part of a type or trait
9. What is a benefit of shadowing over mutability?
It uses less memory
It allows changing the type of the variable
It makes the code run faster
10. What does 'Option::as_ref' do?
Converts an owned Option to a borrowed one
Deletes the Option
Prints the Option value
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