1. The () interface in Flink is used for stream data processing, and the () interface is used for batch processing.

2. ZooKeeper nodes use ACL to control access policies. ACL can be applied to any znode node in the cluster.

3. Fusionlnsight Manager supports multi-tenant unified management.

4. When using HBase for data read service in Fusionlnsight HD, you need to connect to HMaster.

5. The description of HBase Region Split splitting process, which is wrong?

6. What processes are included in the HBase service of Fusionlnsight HD? (Multiple choice)

7. After the Loader job is submitted to YARN in Fusionlnsight HD, the job cannot be stopped manually.

8. Which of the following description about the reliability of the Fusionlnsight HD system is correct? (Multiple Choice)

9. Regarding the comparison between Hive and traditional data warehouse, which of the following description is wrong?

10. In the Kafka cluster, what is the role of the Kafka server?

11. SparkStreaming has higher real-time performance than Storm.

12. Which of the following description of ZooKeeper feature is wrong?

13. Which of the following is the incorrect statement about the description of normal and external tables in Hive?

14. In the Fusionlnsight HD platform, which components support table and column encryption? (Multiple Choice)

15. The checkpoint mechanism in Flink continuously draws a snapshot of the stream application. The state snapshot of the stream application can only be saved in the HDFS file system.

16. All nodes of ZooKeeper can process read requests.

17. Which of the following statement about the BloomFilter feature of HBase is incorrect?

18. Which of the following application scenarios generate data based on unstructured data? (Multiple Choice)

19. In the Flink technical architecture, () is the computational engine for stream processing and batch processing.

20. In the HDFS system, the data block is stored in multiple copies. When the data block on a node is lost, a copy of the data needs to be manually copied to the node.

21. Which of the following is the wrong description about Flink barrier?

22. Which of the following does not belong to the characteristics of the MapReduce component in Hadoop?

23. Which of the following is the wrong statement about ZooKeeper?

24. 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 Task to process these small files. When there is a Shuffle operation in the SQL logic, will greatly increase the number of hash buckets, which will seriously affect performance.

25. The following description of the Flink window, which is wrong? (Multiple choice)