Rust Quiz

Pass with 7 / 10 to unlock your certificate.

1. 1. Which keyword makes a variable mutable?

   varmutlet mutmutable

2. 2. What does ownership ensure?

   Garbage collectionMemory safety without a GCInheritanceFaster compilation

3. 3. Which type represents a possible absence of a value?

   ResultOptionMaybeNull

4. 4. What is a borrow?

   A copy of a valueA reference to a valueMoving ownershipA trait method

5. 5. How many mutable references can coexist with immutable ones?

   UnlimitedZeroOneTwo

6. 6. Which keyword propagates errors concisely?

   !?@try

7. 7. What is a trait?

   A structAn interface-like set of method signaturesA macroA module

8. 8. Which is the package manager for Rust?

   rustupcargorustpmcrates

9. 9. What does `&str` represent?

   A heap-allocated stringA borrowed string sliceA characterA null-terminated array

10. 10. Which macro prints with a newline?

    print!println!echo!log!