SAFCODE

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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19. First IOS was written In 1996
1986
2006
2010

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

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