Implement **Client-Side Field Level Encryption (CSFLE)** or **In-Use Encryption**. The driver automatically encrypts sensitive document fields on the application client side before sending binary payloads to MongoDB. The database server stores strictly encrypted cipher-text and never possesses the decryption keys.

Q67 [Scenario]: Compliance requires encrypting sensitive fields (SSN, Credit Cards) such that even database administrators cannot read plain text. How do you satisfy this?

Q68 [Scenario]: A movie document has 50,000 customer reviews. Loading the movie page fetches all reviews, slowing down page loads. How do you optimize this?

Q66 [Scenario]: An Express API endpoint looping through posts to fetch author details executes 101 queries for 100 posts. How do you resolve this?

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Top 70 MongoDB + Mongoose Interview Questions & Scenario Challenges

Q67 [Scenario]: Compliance requires encrypting sensitive fields (SSN, Credit Cards) such that even database administrators cannot read plain text. How do you satisfy this? - Top 70 MongoDB + Mongoose Interview Questions & Scenario Challenges

Q67 [Scenario]: Compliance requires encrypting sensitive fields (SSN, Credit Cards) such that even database administrators cannot read plain text. How do you satisfy this?

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