If I want to send binary data through the REST proxy to topic "test_binary", it needs to be base64 encoded. A consumer connecting directly into the Kafka topic
Answer(s): B
On the producer side, after receiving base64 data, the REST Proxy will convert it into bytes and then send that bytes payload to Kafka. Therefore, consumers reading directly from Kafka will receive binary data.
Which is an optional field in an Avro record?
Answer(s): A
doc represents optional description of message
A consumer application is using KafkaAvroDeserializer to deserialize Avro messages. What happens if message schema is not present in AvroDeserializer local cache?
Answer(s): D
First local cache is checked for the message schema. In case of cache miss, schema is pulled from the schema registry. An exception will be thrown in the Schema Registry does not have the schema (Which should never happen if you set it up properly)
Which of the following event processing application is stateless? (Select two)
Answer(s): A,C
Stateless means processing of each message depends only on the message, so converting from JSON to Avro or filtering a stream are both stateless operations
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