DEA-C02 Exam Dumps | Consider a scenario where you have a Snowflake table named 'CUSTOMER DATA' containing customer IDs (INTEGER)

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Snowflake.DEA-C02.v2025-10-09.q149
Question 63

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Question 63/149

Consider a scenario where you have a Snowflake table named 'CUSTOMER DATA' containing customer IDs (INTEGER) and encrypted credit card numbers (VARCHAR). You need to create a secure JavaScript UDF to decrypt these credit card numbers using a custom encryption key stored securely within Snowflake's internal stage, and then mask all but the last four digits of the decrypted number for data protection. Which of the following actions are necessary to ensure both functionality and security while adhering to Snowflake's best practices for UDF development and security?

A. Store the encryption key directly within the JavaScript UDF code as a string variable.

B. Store the encryption key in a separate file on an internal stage accessible only by the UDF's service account and load the key from the file within the UDF at runtime.

C. Pass the encryption key as an argument to the UDF each time it is called.

D. Use Snowflake's Secure Vault (Secret) feature to store the encryption key and retrieve it securely within the UDF.

E. Encrypt the key using a weaker encryption algorithm before storing it in an internal stage to balance security and performance.

Correct Answer: B,D

Options B and D are the correct answers. Option B - Storing the encryption key in a file on an internal stage, accessible only by the UDF's service account, is a secure way to manage the key. Option D - Snowflake's Secure Vault (Secret) feature is designed specifically for securely storing and managing sensitive information like encryption keys. This is the most recommended approach. Options A and C are insecure and should be avoided. Option E defeats the purpose of encryption.

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