Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. To Create Mutable Object __ Is Used? Both A & B
var
let
None of them

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2. First version of IOS released was _______ 2007
2010
2009
2005

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3. Which of the following is incorrect data type in swift? Optional
UInt
Char
Double

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4. Which method is used to check if a value in a set? excludes()
contains()
includes()
exists()

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5. Which of the following is the default access level of an object? File Private
Internal
Private
Public

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6. Which keyword does in function start? var function
func
function_name
function

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7. Object is _________ of a class. a duplicate
a declaration
an instance
the opposite

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8. The IDE used in swift is Swiftc
XCODE
Dreamweaver
All of them

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9. The building blocks using object, variables and structures are known as _______ classes
objects
methods
properties

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10. Which of the following classes is used to encode a JSON string? JSONString
None of these
JSONEncoder
JSONDecoder

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11. How is an external parameter used with a function? When calling the functions
None of these
When return value are not required
When the parameter is used in the function body

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12. To use a function we call that function name with its name and what will be passed as input values? Expressions
variables
parameters
Arguments

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13. _________ are collection of key-value pairs, where all keys are of same type and all values are of same type. Arrays
Properties
Dictionaries
Classes

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14. Lazy properties are declared by using the _________ keyword before the property declaration. Slow
None of these
Lazy
weak

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15. Which of the following will be executed. If no matches occurs in switch statement? Continue
Default
Case 0
Break

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16. First IOS was written In 2006
1986
2010
1996

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17. What is a closure Expression? Code that ends a function
Self-contained block of codes
None of these
A function that occurs within another function

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18. IOS stands for? Internet Object Security
Iphone Operating System
Internet Operating System
None of these

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19. Which of the following will be executed, if no matches occur in switch statement? break
default
continue
switch

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20. _________ are a collection of different values of the same type in an unorder list. Collections
Sets
Groups
Values

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