While indexing is used with other data types to access values, a dictionary uses _____.Group of answer choicesKeysListIndexItem
Question
While indexing is used with other data types to access values, a dictionary uses _____.
Group of answer choices
- Keys
- List
- Index
- Item
Solution
1. Break Down the Problem
We need to determine the correct term that describes the method by which values are accessed in a dictionary data structure.
2. Relevant Concepts
In computer science, particularly in data structures, a dictionary (or hashmap) uses a specific method for accessing stored values.
3. Analysis and Detail
- Keys: In a dictionary, values are associated with unique identifiers known as keys. Each key can be used to retrieve the value associated with it.
- List: A list is an ordered collection of items, which is not how dictionaries function.
- Index: Indexing usually pertains to positional access, common in arrays and lists, not dictionaries.
- Item: While items refer to entries in the dictionary, they are not the method of access.
4. Verify and Summarize
Since the question is asking for the method of accessing values in a dictionary, the correct answer must pertain to the unique keys that are used for this purpose.
Final Answer
A dictionary uses Keys to access values.
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