You want to return all fields except password and credit_card, but also explicitly include only name and email. Which _source filter configuration achieves this?

hard🚀 Application Q8 of 15

Elasticsearch - Search Results and Scoring

You want to return all fields except password and credit_card, but also explicitly include only name and email. Which _source filter configuration achieves this?

A{"_source": {"includes": ["name", "email"], "excludes": ["password", "credit_card"]}}

B{"_source": {"includes": ["name", "email", "password", "credit_card"]}}

C{"_source": {"excludes": ["password", "credit_card"]}}

D{"_source": false}

Step-by-Step Solution

Solution:

Step 1: Understand includes and excludes
Includes specify fields to return, excludes specify fields to omit.
Step 2: Analyze requirement
Return only name and email but exclude password and credit_card. Using both includes and excludes together filters accordingly.
Step 3: Evaluate options
{"_source": {"includes": ["name", "email"], "excludes": ["password", "credit_card"]}} correctly combines includes and excludes. {"_source": {"includes": ["name", "email", "password", "credit_card"]}} includes sensitive fields. {"_source": {"excludes": ["password", "credit_card"]}} returns all except excluded but does not restrict to name and email. {"_source": false} disables source entirely.
Final Answer:
Option A -> Option A
Quick Check:
Use both includes and excludes arrays to filter precisely [OK]

Quick Trick: Combine includes and excludes arrays for precise filtering [OK]

Common Mistakes:

MISTAKES

Using only excludes when includes are needed
Including sensitive fields by mistake
Setting _source to false disables all fields

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You want to return all fields except password and credit_card, but also explicitly include only name and email. Which _source filter configuration achieves this?

Step 1: Understand includes and excludes

Step 2: Analyze requirement

Step 3: Evaluate options

Final Answer:

Quick Check:

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