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
Answer(s): A
Explanation:
By default, Kafka brokers use the PLAINTEXT protocol for network communication. This means:
No encryption data is sent in plain text.
No authentication any client can connect without verifying identity. No authorization there are no access control checks by default.
Security features like TLS, SASL, and ACLs must be explicitly configured.
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