Which of the following statements about Zookeeper's Leader election is correct? (Multiple choice)

Which parts of the data need to be read to perform the HBase data reading service? (Multiple choice)

Use the Hbase client to write 10 pieces of data in batches.
An HRegionServer node contains 2 Regions of the table, namely A and B.
6 of the 10 pieces of data belong to A and 4 belong to B.
Please write How many RPC requests need to be sent to HRegionServer for these 10 pieces of data?

Which data type application scenarios are not suitable for Hadoop's HBase?

What is the purpose of the HBase cluster to perform compaction regularly? (Multiple choice)