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Huawei HCIP-Big Data Developer V1.0 Sample Questions:

1. In the Fusioninsight HD product, what is wrong about the Kafka secure and non-secure port description?
(Note: The old API refers to the old Producer API and the old Consumer API. Among them, the old Consumer API: refers to the interface defined in kafka.consumer.ConsumerConnector; the old Producer API: refers to the interface defined in kafka.producer.Producer.)

A) The old API only supports access to port 21005; the new API is compatible with access to non-secure port 21005 and secure port 21007.
B) The premise for the old API to access a topic through port 21005 is that the server parameter allow.everyone.if.no.acl.found is set to true, and the topic does not have ACL attributes set
C) Kafka cluster security access port defaults to 21007, non-secure access port defaults to 21005.
D) For topics with ACL set, you can use the old API to connect to port 21005 for access.

2. Which of the following descriptions about the characteristics of Kafka is correct? (multiple choice)

A) Kafka can achieve message persistence
B) Kafka is a high-throughput, distributed, publish-and-subscribe messaging system
C) Kafka is suitable for offline and online message consumption scenarios
D) Kafka can ensure that the messages in each Partition are in order

3. The rowkey design of HBase table is a very important development and design link.
Suppose there are the following scenarios. The most frequent query scenario is based on the mobile phone number to query the historical call records every month and every six months. Which of the following rowkey designs is the best?

A) Date + mobile phone number
B) Mobile number + date
C) Mobile phone number + name
D) Name + mobile phone number

4. Regarding the file format provided by Hive in the FusionInsight HD system, which is not a columnar file?

A) Parquet
B) CRC
C) TextFiIe
D) RCFile

5. In FusionInsight HD, assuming a topology, spout concurrency is set to 3, bolt1 concurrency is 2, bolt2 concurrency is 3, and the number of workers is 2, then how are bolt1's executors distributed among workers?

A) Two workers are distributed
B) One of the two workers is distributed to two
C) Two workers each distribute one
D) There is no fixed pattern

Solutions: