# Are You Well Familiar With Arrays? Practice Test!

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Arrays are the collection of data which are stored under a name. Array is set to consist of collection of elements which are identified at least by one array index or key. Array is an important keyword to be noted in computer science. Are you familiar with Arrays? Take this quiz now!

• 1.

### What collection's is an array made up of?

• A.

Elements

• B.

Units

• C.

Wares

• D.

Data

A. Elements
Explanation
An array is made up of elements.

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• 2.

### Which of these terms is used in naming an array?

• A.

Vector

• B.

Parasite

• C.

Pin

• D.

Pest

A. Vector
Explanation
The term "Vector" is used in naming an array. In computer programming, a vector is a data structure that represents a collection of elements of the same type. It is commonly used to store and manipulate arrays of data. Therefore, "Vector" is the correct answer for this question.

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• 3.

### What are two-dimensional arrays called?

• A.

Duo

• B.

Doubles

• C.

Matrices

• D.

Matrix

C. Matrices
Explanation
Two-dimensional arrays are called matrices. Matrices are a type of data structure that store elements in a two-dimensional grid-like format, with rows and columns. They are often used in mathematics and computer science to represent and manipulate data that has multiple dimensions.

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• 4.

### Which mathematical concept's can be used as a two-dimensional grid?

• A.

Matrix

• B.

Logarithm

• C.

Differentiation

• D.

Calculus

A. Matrix
Explanation
Matrices can be used as a two-dimensional grid because they are arrays of numbers or variables arranged in rows and columns. Each element in the matrix can be accessed by its row and column index. Matrices are commonly used in various areas of mathematics, such as linear algebra and graph theory, as well as in computer science and physics. They are useful for representing and solving systems of linear equations, performing transformations, and organizing data in a structured way.

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• 5.

### What is first address also called?

• A.

• B.

• C.

• D.

Explanation
The first address is also known as the foundation address.

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• 6.

### What is the memory address of the first element of an array?

• A.

• B.

• C.

• D.

Explanation
The memory address of the first element of an array is referred to as the "first address". This is because arrays are stored in contiguous memory locations, with the first element being stored at the lowest memory address. Therefore, the first address is the correct answer.

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• 7.

### What is another name for linear array?

• A.

Squared array

• B.

Three-dimensional array

• C.

Two-dimensional array

• D.

One-dimensional array

D. One-dimensional array
Explanation
A linear array is another name for a one-dimensional array. It is called "linear" because it consists of a single line or sequence of elements, where each element can be accessed using a single index value. Unlike two-dimensional or three-dimensional arrays, which have multiple dimensions or levels, a one-dimensional array is a simple and straightforward data structure that stores elements in a linear fashion.

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• 8.

### What is the simplest type of data structure?

• A.

Multiple arrayy

• B.

Square array

• C.

Simultaneous array

• D.

Linear array

D. Linear array
Explanation
A linear array is the simplest type of data structure because it consists of a sequence of elements where each element has a unique position. It is a one-dimensional structure where elements are accessed sequentially. Unlike other types of arrays, a linear array does not have any specific pattern or arrangement, making it the most basic and straightforward data structure.

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• 9.

### Which of these formulas is used in computing index tuple?

• A.

Biological

• B.

Electrical

• C.

Chemical

• D.

Mathematical

D. Mathematical
Explanation
The correct answer is Mathematical. Mathematical formulas are used in computing index tuples, which are typically used in data indexing and retrieval systems. These formulas help determine the position or index of a specific data item within a data structure, such as an array or a database table. By using mathematical calculations, index tuples can efficiently locate and retrieve data, making them an essential component in various computer science and information retrieval applications.

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• 10.

### What is another name for an array index?

• A.

Term

• B.

Piece

• C.

Key

• D.

Point

C. Key
Explanation
Another name for an array index is a "key". In programming, an array is a data structure that stores a collection of elements, and each element is accessed using its index or key. The key serves as a unique identifier for each element in the array, allowing for efficient retrieval and manipulation of data. Therefore, "key" is the correct answer as it accurately represents the role of an array index.

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• Current Version
• Mar 19, 2023
Quiz Edited by
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• Jul 08, 2019
Quiz Created by
Gregorynaomi

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