CSS Mastery – Address Management System Practice Test

Address normalization aims to turn addresses into a consistent, searchable form. A common fix is adding missing spaces between address components while leaving other parts intact. In this example, the original address has no space between the number and the street name: “111Maple St.” The resolved form “111 Maple St” inserts the missing space, preserving the numeric part, the street name, and the suffix, which keeps the actual location the same while making the format standard.

The other mappings change elements that aren’t just formatting fixes: one switches the street suffix from St to Avenue, which would point to a different street; another would expand the abbreviation to a full word, which isn’t necessary for normalization in this context and can introduce inconsistency. The last option removes the space, reversing normalization. Hence, inserting the missing space to achieve a standard form best represents a valid Address Resolve here.