SwiftUI Test 2

Question 1

What will the numbers constant contain when this code is run?

Accepted Answer

[[1,1],[2,1],[3,1]]

Answer

[[1,1],[1,2],[1,3]]

Answer

[1,1,2,2,3,3]

Answer

[[1,2,3],[1,2,3],[1,2,3]]

Question 2

Integers are stored in how many bits?

Accepted Answer

It depends on the device

Answer

32-bit

Answer

16-bit

Answer

64-bit

Question 3

What will the code below yield as a result?

Accepted Answer

1, 5, 9, 13

Answer

1, 5, 9, 13, 17

Answer

4, 8, 12, 16

Answer

1, 4, 8, 12, 16

Question 4

Which of the following methods for creating a raw string in Swift is correct?

Accepted Answer

#"Hello, World!"#

Answer

`Hello, World!`

Answer

"""Hello, World!"""

Answer

@"Hello, World!"

Question 5

What data type will be allocated to result in the code below?

Accepted Answer

Tuple

Answer

UInt

Answer

Array

Answer

Int

Question 6

What will the numbers constant contain when this code is run?

Accepted Answer

[1,1,2,2,3,3]

Answer

[[1,2,3],[1,2,3],[1,2,3]]

Answer

[[1,1],[1,2],[1,3]]

Answer

[1,2,3]

Question 7

What is the output of the following code?

Accepted Answer

"Hello, Dave!"

Answer

Nothing will be output

Answer

"Dave"

Answer

"Hello, "

Question 8

What will the code below yield as a result?

Accepted Answer

1

Answer

0

Answer

nill

Answer

Nothing will be output

Question 9

What data type does convertedNumber have when this code is run?

Accepted Answer

Int?

Answer

This code will not compile

Answer

Int

Answer

String