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Suppose that the line var ['b'] var be (select ALL that apply)? string list dictionary == 'y' evaluates to True. Which of the following types could

Suppose that the line var ['b'] var be (select ALL that apply)? string list dictionary == 'y' evaluates to True. Which of the following types could

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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**Question** Suppose that the line `var['b'] == 'y'` evaluates to True. Which of the following types could var be (select ALL that apply)? - [ ] string - [ ] list - [ ] dictionary **Explanation** The code snippet `var['b'] == 'y'` checks if the value associated with the key 'b' in a data structure is equal to 'y'. - **String**: Strings do not support key-value pair indexing, and attempting to index them with a string like `'b'` would result in an error. Thus, var cannot be a string. - **List**: Lists are index-based with integer indices and do not use keys. Therefore, var cannot be a list. - **Dictionary**: Dictionaries in Python hold key-value pairs, and you can access an element using the key. If `var['b']` evaluates to 'y', var is likely a dictionary with 'b' as a key and 'y' as its corresponding value. Hence, var can be a dictionary.
Transcribed Image Text:**Question** Suppose that the line `var['b'] == 'y'` evaluates to True. Which of the following types could var be (select ALL that apply)? - [ ] string - [ ] list - [ ] dictionary **Explanation** The code snippet `var['b'] == 'y'` checks if the value associated with the key 'b' in a data structure is equal to 'y'. - **String**: Strings do not support key-value pair indexing, and attempting to index them with a string like `'b'` would result in an error. Thus, var cannot be a string. - **List**: Lists are index-based with integer indices and do not use keys. Therefore, var cannot be a list. - **Dictionary**: Dictionaries in Python hold key-value pairs, and you can access an element using the key. If `var['b']` evaluates to 'y', var is likely a dictionary with 'b' as a key and 'y' as its corresponding value. Hence, var can be a dictionary.
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