A.Flink can send received components to Kafka

B.The operation of Flink tasks depends on YARN for resource scheduling management

C.Flink reads and writes data in the HDFS file system

D.The implementation of Flink's checkpoint depends on Zookeeper

A.Traditional databases do not require high data processing time, while big data requires real-time data processing

B.The operation and maintenance of massive data needs to ensure data stability, support high concurrency and increase server load.

C.Traditional databases do not consider the diversity of data, especially compatible with structured data, unstructured data and semi-structured data.

D.Traditional databases are not suitable for processing PB-level data.

A.RCFile

B.TextFile

C.SequenceFile

D.HFile

A.Each partition is a directory

B.The data table can be partitioned according to the value of a field

C.There can be partitions or buckets under the partition

D.The number of partitions is fixed

A.Operating system security hardening

B.Data integrity check

C.Component Data Encryption

D.User rights authentication management