T3_PC6.1 & PC6.2

PC6.1.-What is an array in Swift?

• A collection of random data

• A collection of similar data types in the same structure

• A collection of data in no specific order

• A collection of different data types in the same structure

PC6.1-How are elements in an array accessed?

• Using a label

• Using a specific order of index

• Using a unified index

• Using a specific order of values

PC6.1-Which of the following statements is true about arrays in Swift?

• A. Arrays can hold elements of different data types.

• B. Elements in an array are accessed using unique labels.

• C. Arrays require elements to be of the same data type.

• D. B and C are true

PC6.2-What are indices in arrays?

• A type of data structure

• A method for accessing arrays

• An indicator used to locate and allow access to a particular element within an array

• A way to sort arrays

PC6.2-How are indices represented in Swift?

• As strings

• As integers

• As booleans

• As floating point numbers

PC6.2-What is the index of the second element in the Marks array?

Marks = [100, 93, 85, 70]

• 0

• 1

• 2

• 3

PC6.2: What will be the output of this Swift code?

• [1,0,2,3]

• error

• [0,1,2,3]

• [1,2,3,0]

PC6.1: Which Swift array method adds an element at the end of the array?

• insert()

• joined()

• append()

• remove()

PC6.1-Which of the following is the correct swift playground statement that is used to insert the number 10 between 0 and 1 in score array?

• insert(10)

• score.insert(at:10)

• Score.insert(10)

• Score.insert(10,at:1)

PC6.2-var list :[Int]= [ 3 , 2 , 4 , 6 , 8 , 10 ].

what is the range of index in the list array ?

• 0 to 5

• 1 to 5

• 0 t0 6

• 1 to 6