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Confluent CCDAK Exam Syllabus Topics:

Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions:

1. You want to connect with username and password to a secured Kafka cluster that has SSL encryption.
Which properties must your client include?

A) security.protocol=SASL_SSLsasl.jaas.config=org.apache.kafka.common.security.plain.
PlainLoginModule required username='myUser' password='myPassword';
B) security.protocol=SASL_PLAINTEXTsasl.jaas.config=org.apache.kafka.common.security.plain.
PlainLoginModule required username='myUser' password='myPassword';
C) security.protocol=PLAINTEXTsasl.jaas.config=org.apache.kafka.common.security.ssl.
TlsLoginModule required username='myUser' password='myPassword';
D) security.protocol=SSLsasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username='myUser' password='myPassword';

2. You create a producer that writes messages about bank account transactions from tens of thousands of different customers into a topic.
Your consumers must process these messages with low latency and minimize consumer lag Processing takes ~6x longer than producing Transactions for each bank account must be processed in orderWhich strategy should you use?

A) Use the timestamp of the message's arrival as its key.
B) Use the bank account number found in the message as the message key.
C) Use a unique identifier such as a universally unique identifier (UUID) as the message key.
D) Use a combination of the bank account number and the transaction timestamp as the message key.

3. Clients that connect to a Kafka cluster are required to specify one or more brokers in the bootstrap.servers parameter.
What is the primary advantage of specifying more than one broker?

A) It is the mechanism to distribute a topic's partitions across multiple brokers.
B) It provides redundancy in making the initial connection to the Kafka cluster.
C) It forces clients to enumerate every single broker in the cluster.
D) It provides the ability to wake up dormant brokers.

4. What are two examples of performance metrics?
(Select two.)

A) incoming-byte-rate
B) fetch-rate
C) Number of active user sessions
D) total-login-attempts
E) Time of last failed login
F) Number of active users

5. (Which configuration determines the maximum number of records a consumer can poll in a single call to poll()?)

A) max.records.consumer
B) max.poll.records.interval
C) fetch.max.records
D) max.poll.records

Solutions: