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Questions and Answers
What is a common characteristic of elements in a homogeneous data structure?
What is a common characteristic of elements in a homogeneous data structure?
What will be the output of the statement print(Array_2d) for the array Array_2d = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]?
What will be the output of the statement print(Array_2d) for the array Array_2d = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]?
Which statement about arrays is FALSE?
Which statement about arrays is FALSE?
Which of the following statements is TRUE about tuples?
Which of the following statements is TRUE about tuples?
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What is the output of the statement print(fruits[-1]) for the tuple fruits = ('apple', 'orange', 'watermelon', 'grapes', 'banana')?
What is the output of the statement print(fruits[-1]) for the tuple fruits = ('apple', 'orange', 'watermelon', 'grapes', 'banana')?
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What characteristics define arrays as data structures?
What characteristics define arrays as data structures?
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Which statement is TRUE regarding arrays?
Which statement is TRUE regarding arrays?
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What is the correct name of the module used to work with arrays in Python?
What is the correct name of the module used to work with arrays in Python?
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What is the index of the first element in an array?
What is the index of the first element in an array?
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Which of the following correctly represents the array declaration for 10 students' marks?
Which of the following correctly represents the array declaration for 10 students' marks?
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Which programming structure is necessary to input values into an array?
Which programming structure is necessary to input values into an array?
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Given the array student_marks = [90, 85, 70, 75, 80], what will print(student_marks) output?
Given the array student_marks = [90, 85, 70, 75, 80], what will print(student_marks) output?
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What is the output of print(Array_2d) where Array_2d = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]?
What is the output of print(Array_2d) where Array_2d = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]?
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Study Notes
Arrays
- Arrays are linear, homogenous, and static data structures.
- Arrays store data in an order.
- All data in an array must be of the same data type.
- Each element of an array has a corresponding index value, starting with index 0.
- The
arraymodule is used to work with arrays in Python. - You can iterate over arrays using a
forloop. - A two-dimensional array consists of rows and columns.
- You can iterate over a two-dimensional array using nested
forloops. - The
len()function returns the length of an array. - It is not possible to modify the size of an array once it is created.
Tuples
- Tuples are similar to arrays but are immutable, meaning their elements cannot be modified after creation.
- Tuples can contain elements of different data types.
- You can access elements of a tuple using indexing, starting with index 0.
- Tuples are useful for representing a fixed set of data.
Records
- Records are similar to arrays, but can store elements of different data types (non-homogeneous).
- Records are used to represent a single entity, with fields containing information about that entity.
- The fields in a record are not accessed by index, instead they are accessed by their unique name.
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Description
This quiz covers the fundamental concepts of arrays, tuples, and records in Python. Learn about their characteristics, differences, and how to manipulate them. Test your knowledge with questions on indexing, immutability, and data types.
