CCAAK問題集、Confluent実際の試験問題

質問 1

You have an existing topic t1 that you want to delete because there are no more producers writing to it or consumers reading from it.
What is the recommended way to delete the topic?

A. The consumer should send a message with a 'null' key.

B. Delete the offsets for that topic from the consumer offsets topic.

C. Delete the log files and their corresponding index files from the leader broker.

D. If topic deletion is enabled on the brokers, delete the topic using Kafka command line tools.

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 2

An employee in the reporting department needs assistance because their data feed is slowing down. You start by quickly checking the consumer lag for the clients on the data stream.
Which command will allow you to quickly check for lag on the consumers?

A. bin/kafka-reassign-partitions.sh

B. bin/kafka-consumer-group-throughput.sh

C. bin/kafka-consumer-groups.sh

D. bin/kafka-consumer-lag.sh

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 3

How does Kafka guarantee message integrity after a message is written on a disk?

A. Only message metadata can be altered using command line (CLI) tools.

B. A message cannot be altered once it has been written.
C A message can be grouped with message sharing the same key to improve read performance

C. A message can be edited by the producer, producing to the message offset.

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 4

You want to increase Producer throughput for the messages it sends to your Kafka cluster by tuning the batch size ('batch size') and the time the Producer waits before sending a batch ('linger.ms').
According to best practices, what should you do?

A. Increase 'batch.size' and decrease 'linger.ms'

B. Decrease 'batch.size' and decrease 'linger.ms'

C. Decrease 'batch.size' and increase 'linger.ms'

D. Increase 'batch.size' and increase 'linger.ms'

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 5

Kafka broker supports which Simple Authentication and Security Layer (SASL) mechanisms for authentication? (Choose three.)

A. SASL/SAML20

B. SASL/GSSAPI (Kerberos)

C. SASL/OAUTHBEARER

D. SASL/OTP

E. SASL/PLAIN

正解: B,C,E

解説: (PassTest メンバーにのみ表示されます)

質問 6

The Consumer property 'auto offset reset' determines what to do if there is no valid offset for a Consumer Group.
Which scenario is an example of a valid offset and therefore the 'auto.offset.reset' does NOT apply?

A. The Consumer offset is greater than the last offset in the partition (log end offset).

B. When an offset points to a message that has been removed by compaction but is still within the current partition.offset range.

C. The Consumer Group started for the first time.

D. The Consumer offset is less than the smallest offset in the partition (log start offset).

正解: B

解説: (PassTest メンバーにのみ表示されます)

Confluent Certified Administrator for Apache Kafka - CCAAK 模擬練習