CompTIA Data+ DA0-002 (V2) Practice Question

The correct regular expression is SKU:([A-Z]{3}-\d{5}). The parentheses () create a 'capturing group.' This tells the regex engine to match the entire pattern but to specifically capture and return only the portion of the string that matches the pattern inside the parentheses. In this case, it matches 'SKU:' but only captures the [A-Z]{3}-\d{5} part.

• (SKU:[A-Z]{3}-\d{5}) is incorrect because the capturing group includes the 'SKU:' prefix, which the requirement states should be excluded from the final extracted value.
• SKU:[A-Z]{3}-\d{5} is incorrect because it will find and match the pattern, but it lacks a capturing group (), so it will not isolate and extract only the identifier part.
• SKU:([A-z]{3}-\d{5}) is incorrect because the character range [A-z] is a common mistake. In ASCII, this range includes non-alphabetic characters that fall between 'Z' and 'a' (such as '[', '', ']', '^', '_', ''). The requirement specifies only uppercase letters, for which [A-Z]` is the correct and precise range.