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Huawei HCIP-Big Data Developer 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 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
B) Kafka cluster security access port defaults to 21007, non-secure access port defaults to 21005.
C) 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.
D) For topics with ACL set, you can use the old API to connect to port 21005 for access.

2. When a task is submitted to the YARN cluster, which of the following options will generate a job id for the task?

A) NodeManager
B) AppMaster
C) container
D) ResourceManager

3. In FusionInsight HD, which parts of a complete Streaming CQL application include at least? (multiple choice)

A) Business operation statements (such as SELECT, INSERT, JION, etc.)
B) Create an input stream
C) Create an output stream
D) Application submission statement

4. In the Solr application query scenario, when the query results are paged in depth, the cursor needs to be used to page in depth. Which of the following is correct about the cursor? (multiple choice)

A) There will be nextCursorMark in the return result of Solr, use this value as oursorMark in the next call
B) The uniqueKey field must be sorted
C) The query field must be sorted
D) When querying, the start parameter cannot be included in the request
E) In the first query request, you need to specify the query parameters, the operation method is as follows: solrQuery.set (CursorMarkParams.CURSOR_MARK_PARAM, CursorMarkParams.CURSOR_MARK_START);

5. Which of the following is correct about the HDFS client's file reading process? (multiple choice)

A) Download data from the nearest DataNode first.
B) If the client and the connected DataNode fail during reading, the client will abandon the failed node and connect to the node where the other replica is located.
C) Support multiple clients to read the same file data from the DataNode at the same time.
D) The file data is first returned from the DataNode to the NameNode, and then sent from the NameNode to the client.

Solutions: