1. What is Box ? Junior A. a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur B. the pattern of mutating data through a shared reference by deferring the aliasing check to runtime C. a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads D. a smart pointer that stores its single owned value on the heap, used for recursive types or large data
2. Which term means: "a smart pointer that stores its single owned value on the heap, used for recursive types or large data"? Junior A. Rc B. Box C. RefCell D. Arc
3. Which statement is correct? Junior A. Box — the pattern of mutating data through a shared reference by deferring the aliasing check to runtime B. Box — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops C. Box — a smart pointer that stores its single owned value on the heap, used for recursive types or large data D. Box — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
4. What is Rc ? Mid A. the pattern of mutating data through a shared reference by deferring the aliasing check to runtime B. a smart pointer that stores its single owned value on the heap, used for recursive types or large data C. a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops D. a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads
5. Which term means: "a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops"? Mid A. Box B. Arc C. RefCell D. Rc
6. Which statement is correct? Mid A. Rc — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops B. Rc — a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads C. Rc — a smart pointer that stores its single owned value on the heap, used for recursive types or large data D. Rc — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
7. What is Arc ? Mid A. a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads B. the pattern of mutating data through a shared reference by deferring the aliasing check to runtime C. a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur D. a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
8. Which term means: "a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads"? Mid A. Rc B. Arc C. RefCell D. Box
9. Which statement is correct? Mid A. Arc — a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads B. Arc — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur C. Arc — a smart pointer that stores its single owned value on the heap, used for recursive types or large data D. Arc — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
10. What is RefCell ? Senior A. the pattern of mutating data through a shared reference by deferring the aliasing check to runtime B. a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops C. a smart pointer that stores its single owned value on the heap, used for recursive types or large data D. a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
11. Which term means: "a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur"? Senior A. Arc B. RefCell C. Interior mutability D. Rc
12. Which statement is correct? Senior A. RefCell — the pattern of mutating data through a shared reference by deferring the aliasing check to runtime B. RefCell — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur C. RefCell — a smart pointer that stores its single owned value on the heap, used for recursive types or large data D. RefCell — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
13. What is Interior mutability ? Senior A. a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur B. a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops C. a smart pointer that stores its single owned value on the heap, used for recursive types or large data D. the pattern of mutating data through a shared reference by deferring the aliasing check to runtime
14. Which term means: "the pattern of mutating data through a shared reference by deferring the aliasing check to runtime"? Senior A. Arc B. Rc C. Interior mutability D. RefCell
15. Which statement is correct? Senior A. Interior mutability — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur B. Interior mutability — a smart pointer that stores its single owned value on the heap, used for recursive types or large data C. Interior mutability — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops D. Interior mutability — the pattern of mutating data through a shared reference by deferring the aliasing check to runtime