1. What is Stored property ? Junior A. a reusable type that adds behavior to a member through an attribute prefixed with an at sign B. a constant or variable that holds a value as part of an instance C. a member with no backing storage that derives its result on each access via a getter D. observers that run code immediately before and after a stored member's value changes
2. Which term means: "a constant or variable that holds a value as part of an instance"? Junior A. Stored property B. lazy C. Property wrapper D. Computed property
3. Which statement is correct? Junior A. Stored property — a constant or variable that holds a value as part of an instance B. Stored property — a reusable type that adds behavior to a member through an attribute prefixed with an at sign C. Stored property — observers that run code immediately before and after a stored member's value changes D. Stored property — a member with no backing storage that derives its result on each access via a getter
4. What is Computed property ? Junior A. a constant or variable that holds a value as part of an instance B. a modifier delaying a stored member's initialization until it is first read C. a reusable type that adds behavior to a member through an attribute prefixed with an at sign D. a member with no backing storage that derives its result on each access via a getter
5. Which term means: "a member with no backing storage that derives its result on each access via a getter"? Junior A. Stored property B. Computed property C. lazy D. willSet and didSet
6. Which statement is correct? Junior A. Computed property — a constant or variable that holds a value as part of an instance B. Computed property — a member with no backing storage that derives its result on each access via a getter C. Computed property — a reusable type that adds behavior to a member through an attribute prefixed with an at sign D. Computed property — observers that run code immediately before and after a stored member's value changes
7. What is lazy ? Mid A. a modifier delaying a stored member's initialization until it is first read B. a reusable type that adds behavior to a member through an attribute prefixed with an at sign C. a constant or variable that holds a value as part of an instance D. observers that run code immediately before and after a stored member's value changes
8. Which term means: "a modifier delaying a stored member's initialization until it is first read"? Mid A. Computed property B. lazy C. Property wrapper D. Stored property
9. Which statement is correct? Mid A. lazy — a constant or variable that holds a value as part of an instance B. lazy — observers that run code immediately before and after a stored member's value changes C. lazy — a modifier delaying a stored member's initialization until it is first read D. lazy — a reusable type that adds behavior to a member through an attribute prefixed with an at sign
10. What is willSet and didSet ? Mid A. a reusable type that adds behavior to a member through an attribute prefixed with an at sign B. a modifier delaying a stored member's initialization until it is first read C. a member with no backing storage that derives its result on each access via a getter D. observers that run code immediately before and after a stored member's value changes
11. Which term means: "observers that run code immediately before and after a stored member's value changes"? Mid A. Computed property B. willSet and didSet C. lazy D. Property wrapper
12. Which statement is correct? Mid A. willSet and didSet — a member with no backing storage that derives its result on each access via a getter B. willSet and didSet — a modifier delaying a stored member's initialization until it is first read C. willSet and didSet — observers that run code immediately before and after a stored member's value changes D. willSet and didSet — a reusable type that adds behavior to a member through an attribute prefixed with an at sign
13. What is Property wrapper ? Senior A. observers that run code immediately before and after a stored member's value changes B. a reusable type that adds behavior to a member through an attribute prefixed with an at sign C. a member with no backing storage that derives its result on each access via a getter D. a constant or variable that holds a value as part of an instance
14. Which term means: "a reusable type that adds behavior to a member through an attribute prefixed with an at sign"? Senior A. Property wrapper B. Computed property C. Stored property D. lazy
15. Which statement is correct? Senior A. Property wrapper — a member with no backing storage that derives its result on each access via a getter B. Property wrapper — a reusable type that adds behavior to a member through an attribute prefixed with an at sign C. Property wrapper — observers that run code immediately before and after a stored member's value changes D. Property wrapper — a constant or variable that holds a value as part of an instance