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Huawei H13-711-ENU Exam Syllabus Topics:

Huawei HCIA-Big Data(Huawei Certified ICT Associate-Big Data) Sample Questions:

1. In the Spark SQL table, there are often many small files (the size is much smaller than the HDFS block size). In this case, Spark will start more Tasks to process these small files. When there is a Shuffle operation in the SQL logic, It will greatly increase the number of hash buckets, which will seriously affect performance.

A) True
B) False

2. One of the goals of the data center technology architecture is to be able to solve the disadvantages that traditional data warehouses tend to become data islands and big data platforms tend to become data swamps.

A) True
B) False

3. Fusioninsight HD system audit log is unavailable to record which of the following operations?

A) Clear warnings manually
B) Start and stop the service instance
C) Query History Monitoring
D) Delete service instance

4. After using the Streaming client shell command to submit the topology in the Fusioninsight HD system, I use the Strom UI to view and find that the topology has not processed data for a long time. What may be the reason? (Multiple choice)

A) There is a logic error in the topology business, and it cannot run normally after submission
B) The topology is too complex or the concurrency is too large, causing the worker startup time to be too long, exceeding the waiting time of the Supervisor
C) Supervisor is a component that receives data in topology and then performs processing
D) The slots resources of the Supervisor are exhausted. After the topology is submitted, there are no slots to start the worker process.

5. Spark Streaming computing is based on DStream, which decomposes streaming computing into a series of short batch jobs.

A) True
B) False

Solutions: