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Huawei HCIA-Big Data V3.5 Sample Questions:
1. To execute the HBase data reading business, which parts of the data need to be read? (Multiple choice)
A) HLog
B) HFile
C) HMaster
D) MemStore
2. What is the purpose of the HBase cluster regularly executing Compaction? (Multiple choice)
A) Reduce the number of files under the same ColumnFamily in the same Region
B) Reduce the number of files in the same Region
C) Improve data reading performance
D) Improve data writing ability
3. Regarding the comparison between Hive and traditional data warehouses, which of the following descriptions is wrong?
A) Hive is based on HDFS storage, theoretically, the storage capacity can be expanded infinitely, while the storage capacity of traditional data warehouses will have an upper limit
B) Since Hive is based on a big data platform, the query efficiency is faster than traditional data warehouses
C) Since Hive data is stored in HDFS, it can guarantee high fault tolerance and high reliability of data
D) Hive metadata storage is independent of data storage, thereby decoupling metadata and data, with high flexibility, while traditional data warehouses have single data applications and low flexibility
4. Which process is described in the Map stage shown in the figure below?
A) Sort
B) Partition
C) Spill/Merge
D) Combine
5. In Fusioninsight HD, if you need to view the users and permission groups currently logged into HBase, what commands can you execute in the HBase shell?
A) whoami
B) who
C) use_permission
D) get_user
Solutions:
| Question # 1 Answer: B,D | Question # 2 Answer: A,C,D | Question # 3 Answer: B | Question # 4 Answer: D | Question # 5 Answer: A |
By Quintion
