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Free Confluent CCDAK Exam Braindumps (page: 2)

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150 Questions & Answers
Page 2 of 38

Where are the ACLs stored in a Kafka cluster by default?

  1. Inside the broker's data directory
  2. Under Zookeeper node /kafka-acl/
  3. In Kafka topickafka_acls
  4. Inside the Zookeeper's data directory

Answer(s): A

Explanation:

ACLs are stored in Zookeeper node /kafka-acls/ by default.



Is KSQL ANSI SQL compliant?

  1. Yes
  2. No

Answer(s): B

Explanation:

KSQL is not ANSI SQL compliant, for now there are no defined standards on streaming SQL languages



What information isn't stored inside of Zookeeper? (Select two)

  1. Schema Registry schemas
  2. Consumer offset
  3. ACL information
  4. Controller registration
  5. Broker registration info

Answer(s): B

Explanation:

Consumer offsets are stored in a Kafka topic consumer_offsets, and the Schema Registry stored schemas in the _schemas topic.



Which KSQL queries write to Kafka?

  1. COUNT and JOIN
  2. SHOW STREAMS and EXPLAIN <query> statements
  3. CREATE STREAM WITH <topic> and CREATE TABLE WITH <topic>
  4. CREATE STREAM AS SELECT and CREATE TABLE AS SELECT

Answer(s): C,D

Explanation:

SHOW STREAMS and EXPLAIN <query> statements run against the KSQL server that the KSQL client is connected to. They don't communicate directly with Kafka. CREATE STREAM WITH <topic> and CREATE TABLE WITH <topic> write metadata to the KSQL command topic. Persistent queries based on CREATE STREAM AS SELECT and CREATE TABLE AS SELECT read and write to Kafka topics. Non- persistent queries based on SELECT that are stateless only read from Kafka topics, for example SELECT … FROM foo WHERE …. Non-persistent queries that are stateful read and write to Kafka, for example, COUNT and JOIN. The data in Kafka is deleted automatically when you terminate the
query with CTRL-C.






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