Confluent CCAAK Question Answer
By default, what do Kafka broker network connections have?
No encryption, no authentication and no authorization
Encryption, but no authentication or authorization
No encryption, no authorization, but have authentication
Encryption and authentication, but no authorization
By default, Kafka does not enable any security mechanism. This means:
Communication is done over PLAINTEXT (unencrypted).
No authentication is configured.
No authorization is enforced.
From Apache Kafka documentation:
“By default, Kafka has no security. All network communication is done in plaintext, and there is no client authentication or authorization.”
This means that:
Option A is correct.
Option B is incorrect because encryption is not enabled by default.
Option C is incorrect because authentication is not provided unless SASL is configured.
Option D is incorrect as neither encryption nor authentication is enabled by default.
Page Reference:
Confluent Kafka: The Definitive Guide, 1st Edition, Chapter 9, p. 275
Apache Kafka Documentation: “Security Overview” section
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TESTED 11 Jul 2025
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