Why might filtering by field values in a REST API sometimes return fewer results than expected when filtering by a field that can be null or missing?

hard📝 Conceptual Q10 of 15

Rest API - Query Parameters and Filtering

ABecause records with null or missing fields are excluded by the filter

BBecause the API automatically fills missing fields with default values

CBecause filtering always returns all records regardless of field values

DBecause the API converts null fields to zero before filtering

Step-by-Step Solution

Solution:

Step 1: Understand filtering behavior with null/missing fields
Filters usually exclude records where the field is null or missing because they don't match the filter condition.
Step 2: Recognize why results are fewer
Records without the field or with null values do not satisfy the filter, so they are left out.
Final Answer:
Because records with null or missing fields are excluded by the filter -> Option A
Quick Check:
Null/missing fields excluded in filtering [OK]

Quick Trick: Filters exclude null or missing fields by default [OK]

Common Mistakes:

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