Western Governors University (WGU) ITSW 2113 D278 Scripting and Programming Foundations Practice Exam

Question: 1 / 400

Which of the following statements about arrays is true?

Arrays can only store numerical values

Arrays have a fixed size and can hold a collection of values

Arrays are versatile data structures that can hold a collection of values, and one of their key characteristics is that they have a fixed size. This means that when you create an array, you define its length, and it can only hold that specified number of elements. Each element can be of a specific data type (such as integers, strings, or objects, depending on the programming language).

By having a fixed size, arrays provide efficient indexing based on numerical indices, allowing for quick access to each element. This organization is beneficial for tasks that require storing and managing multiple related values as a single unit.

The other statements do not accurately reflect the capabilities or properties of arrays. For instance, arrays can store various types of data, not just numerical values; they can be accessed using numerical indices rather than string indices; and they can accommodate duplicate values—an attribute that enhances their utility in numerous programming scenarios. Thus, the assertion that arrays have a fixed size and can hold a collection of values accurately captures the essential characteristics of arrays.

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Arrays can only be accessed by string indices

Arrays cannot store duplicate values

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