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Huawei H13-723 Exam Syllabus Topics:

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

1. In HBase of FusionInsight HD, which of the following scenarios will not trigger the Flush operation?

A) The MemStore setting of the Region exceeds the threshold
B) The scan caching is set too large when the client initiates a scan request
C) The total memory of RegionServer exceeds the threshold
D) Initiate Flush operation through the client specified method

2. What methods does FusionInsight HD support to submit Oozie jobs? (multiple choice)

A) Java API
B) Shell commands
C) Hue UI
D) Rest API

3. Which of the following reasons will cause HDFS NameNode to enter safemode (safe read-only mode)? (multiple choice)

A) The disk space where the metadata of the active and standby NameNodes reside is insufficient.
B) The missing copy exceeds the threshold.
C) The damaged copy exceeds the threshold.
D) The number of lost blocks exceeds the threshold.

4. Suppose there is an application, there are 10 tables, each table has tens of millions of records, and the number of fields is about 20.
Now Redis is used to cache the data of these 10 tables. For the design of the data structure, which of the following is the best design?

A) Using string structure, each field in each row of each table uses a KEY.
B) A hash structure is adopted, and a table uses a hash KEY, and a row in the table records a field for the hash KEY.
C) Using string structure, each row of each table uses a KEY, and value is the concatenated value of all the fields in a row of the table.
D) Using a hash structure, each row record of each table uses a hash KEY, the field of the hash KEY corresponds to the field of the table record, and each table is designed with a different prefix to distinguish it.

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

Solutions: