LinkedIn C Objective Assessment Answers
The LinkedIn Skill Assessments feature allows you to demonstrate your knowledge of the skills you’ve added to your profile. Job posters on LinkedIn can also add Skill Assessments as part of the job application process. This allows job posters to more efficiently and accurately verify the crucial skills a candidate should have for a role.
The topics in the Objective-C assessment include:
- General
- Collections
- Variables
- Functions
- Classes
- Control Flow
- Operators and Strings
- Categories and Blocks
- Threading
- Notifications and Unit Testing
Question Format
Multiple Choice
Language
English
LinkedIn C Objective Assessment Questions and Answers
- 123456
- 123
- 456
- This code contains an error.
- nil
- 0 (technically nil == 0 but i will have a literal value of 0 and not the void* value of nil)
- -1
- This code crashes.
- This code contains an error
- test
- nil
- test more
- 2
- 1,2,3
- 1,2
- Nothing, since this code contains an error.
- atomic/strong
- atomic/weak
- nonatomic/weak
- nonatomic/strong
- NSMutableDictionary's values can change
- NSMutableDictionary has not initializers.
- NSDictionary can't be copied.
- NSDictionary's values can change.
- A function with a return type of float.
- This code contains an error.
- A variable declaration of type float.
- A property of type float.
- NameHelper is a category of NSString.
- NameHelper is a subclass of NSString.
- NSString implements the NameHelper protocol.
- NSString has a helper class.
- Nothing is wrong with this code.
- Declarations do not need semicolons.
- x=5 is an invalid float.
- Variables can't be declared and initialized in the same state.
- 50
- 99
- 100
- This code contains an error.
- Key-Value Observing
- Class Value Observing
- Key-Data Observing
- KeyPath Observing
- Automatic Reference Counting
- Automatic Retain Checking
- Async Retain Cycles
- Automatic Release Code
- 1
- 2
- 0
- This code contains an error.
- single inheritance but multiple protocol implementation
- Objective-C doesn't support inheritance
- dual-class inheritance
- unlimited class inheritance and protocol adherence
- 2
- 4
- 5
- This code contains an error.
- The key and value items are mixed
- Nothing is wrong with it
- You can't set the capacity of a dictionary
- NSMutableDictionary doesn't have a :setValue:forKey function.
- This code is invalid
- Nothing is printed from this code.
- nil
- It is static
- It is abstract.
- It is inline.
- This code contains an error.
- functions
- initializers
- fields
- all of these answers
- There is nothing wrong with this code.
- There is not read-only directive.
- MyClass doesn't implement NSObject.
- Properties are declared in the implementation.
- There is no base type.
- NSObject
- int
- NSNumber
- UserDefaults
- plist file
- CoreData
- TextFile
- to extend other classes
- to manage access control
- to coordinate objects
- to group classes
- This code contains an error
- if keyPath is an instance of NSString
- if keyPath's base class is the same as NSString's base class
- if keyPath implements the same methods as NSString
- an Extension
- a Generic
- a block of code
- an abstract class
- Statement 2, since it calls the auto-created setter on the property.
- Statement 1, since it uses the property directly.
- Statement 2, since it specifies the class instance to use.
- Statement 1, since it calls the auto-created setter on the property.
- Ints and floats can't be multiplied.
- The parameter isn't declared correctly.
- x is not in the right scope.
- Nothing is wrong with this code.
- Arrays are ordered non-unique values.
- Arrays are stored sorted.
- Sets are ordered unique values.
- Sets can contain nils.
- nothing, as they're never used in Objective-C
- function calls only
- property getter/setter
- parameter delimiters
- 2,3
- nil
- This code contains an error
- 2, "3"
- self.foo(5, b:10);
- This code contains an error.
- [self foo:5:10:20];
- [self foo:5 b:10];
- NSString
- NSArray
- id
- NSDictionary
- The parameter is passed by value and can not be changed
- ** is not allowed on a parameter
- The parameter may be nil
- The parameter is passed by reference and may be changed
- 0
- 1
- thing2
- This code does not print anything
- non-atomic
- strong
- weak
- atomic
- ==================
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