Arrays, tuples and records

What is an array defined as in computer science?

• A) A finite, ordered set of elements of the same type

• B) An infinite, unordered set of elements of different types

• C) A finite, unordered set of elements of different types

• D) An infinite, ordered set of elements of the same type

Which of the following is an example of an elementary data type?

• A) Integer

• B) Array

• C) Record

• D) String

In the example array myArray = [51, 72, 35, 37, 0, 3], what value is assigned to x if x = myArray[2]?

• A) 51

• B) 72

• C) 35

• D) 37

What does the function len(arrayName) return in most programming languages?

• A) The sum of all elements in the array

• B) The length of the array

• C) The first element of the array

• D) The last element of the array

What is a tuple in Python?

• A mutable list of elements

• An ordered set of values that is immutable

• A collection of key-value pairs

• A dynamic array

Which of the following is a valid way to refer to an element in a tuple?

• pupil[0] = "Mary"

• pupil = "John"

• name = pupil[0]

• pupil.append("Mary")

What is a record in the context of data structures?

• A single value in a tuple

• A collection of fields in a file

• A dynamic array of integers

• A mutable list of strings

How is a record type declared in some programming languages?

• recordType = student

• studentType = record

• record = studentType

• student = recordType

How would you refer to the surname of a student in a record?

• student.surname

• surname.student

• student.surname()

• surname = student

Which of the following operations can be performed on an array?

• Accessing elements by index

• Removing elements from the middle

• Adding elements at the end

• All of the above