Rust Intermediate Quiz 3
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Quiz 3
1. What are 'GATs' in Rust?
Generic Associated Types
Global Array Tables
General Async Tasks
2. What does the 'Send' marker trait signify?
The type can be sent over a network
The type is an iterator
The type can be transferred between threads
3. What does the 'Sync' marker trait signify?
The type is synchronized with a database
Multiple threads can safely access the type via references
The type is a constant
4. Why use 'Associated Types' instead of 'Generics' in a trait?
To improve readability and simplify type annotations
To make the trait faster
To allow multiple implementations for one type
5. Which method is used to chain together operations that return 'Option'?
map()
and_then()
or_else()
6. What is the 'turbofish' operator used for?
Fast network communication
Iterating over a list backwards
Specifying generic types in expressions
7. How do you protect data for shared mutability across threads?
Mutex<T>
RefCell<T>
Box<T>
8. What is 'RAII' in the context of Rust?
Remote Access Interface
Resource management tied to object lifetime
A type of compiler optimization
9. What is 'Box<dyn Trait>' commonly used for?
Speeding up string concatenation
Storing a single integer
Creating a collection of different types that implement a trait
10. When should you use 'Result' instead of 'panic!'?
For errors that the calling code can handle
For internal logic bugs that should never happen
When you want the program to crash immediately
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