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Huawei H13-723-ENU Exam Syllabus Topics:

Huawei HCIP-Big Data Developer Sample Questions:

1. Which Redis commands are atomic operations?

A) HINCRBY (add incremental increment to the field value in the hash table key)
B) INCR (increase the stored digital value by one)
C) All of the above
D) LPUSH (push operation on linked list)

2. In Kafka, which statement about Consumer is correct? (multiple choice)

A) Consumer mainly conducts data consumption
B) When multiple Consumers are configured with the same group.id, the data consumed by these Consumers will not be repeated
C) Topic needs to be specified when Consumer consumes data
D) The new ConsumerAPI consumption data does not need to specify the ZooKeeper address

3. Which of the following scenarios is not suitable for Redis? (multiple choice)

A) Complex transaction operations
B) Counter application: for example, counting the number of people logged in to a certain website
C) A message queue application that is consumed by multiple consumers at the same time and guarantees that the message is successfully consumed by all subscribers (subscription-notification)
D) Get the latest N data: for example, get the latest 10 comments on a Weibo

4. In Spark, assuming that lines is a DStream object, the filter statement can filter out 80% of the data. Which statement is correct for the following two statements:
X: lines.filter(...).groupByKey(...)
Y: lines.groupByKey(...).filter(...)

A) It is impossible to determine the performance difference between X and Y
B) X has higher performance than Y
C) X and Y have the same performance
D) X has lower performance than Y

5. In FusionInsight HD, regarding the partition function of Hive, what is wrong in the following description?

A) The partition field should be defined when the table is created
B) There can only be one partition field, and multi-level partitions cannot be created
C) Using partitions can reduce the data scan range of certain queries, thereby improving query efficiency
D) The partition field can be used as the condition of the where clause

Solutions: