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Huawei H13-723-ENU Exam Syllabus Topics:

Huawei HCIP-Big Data Developer Sample Questions:

Question 1

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

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

Question 2

In FusionInsight HD's Hive, the user-defined UDF can have the same name as the Hive built-in UDF. In this case, the user-defined UDF will be used.

A. False
B. True

Question 3

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 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.
B. 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.
C. Using string structure, each field in each row of each table uses a KEY.
D. 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.

Question 4

When HDFS is running, the NameNode will load all the metadata of the file system from the disk to the memory. Therefore, the total number of files that the file system can store is limited by the memory capacity of the NameNode.

A. False
B. True

Question 5

In Kafka, which of the following commands can check how many partitions a topic has?

A. kafka-topics.sh --list
B. kafka-topics.sh --create
C. kafka-topics.sh - describe
D. kafka-topics.sh --alter

Solutions: