A. all of the aboveA. True
B. The popularization of smart terminals and the improvement of social demands
C. Reduced hardware costs and increased network bandwidth
D. The rise of cloud computing
A. KrbServer
B. Zookeeper
C. HDFS
D. LDAPServer
A. Kafka
D. YARN
A. True
B. False
A. data analysis
B. data management
C. data presentation
D. data collection
E. data storage
A. Processing time,eventquiltsystem processing time
B. ingestion time, the time the event arrives at the stream processing system
C. eventime,the time when the event occurred
D. delay time,Right nowthingincident to processingextendlate time
A. If the end of the data block has been reached. Then close the connection with this DataNodel, and then re-find the next data block. until all data is read.
B. The location where the data block corresponding to this file in NameNodel is obtained by calling NameNode remotely through RPC
C. After obtaining this input stream, the client calls the read method to read the data. The input stream selects the nearest DataNode to establish a connection and read data.
D. The client calls the open method of the FileSystem instance to obtain the input stream corresponding to the file.
E. The client calls close. to close the input stream.
A. head
B. hadoop
C. IKAnalyzer
D. bigdesk
A. mapPartiion
B. collect
C. reduceByKe
D. reduce
A. Data aggregation, such as daily, weekly user clicks,Click to rank
B. Non-real-time analysis, such as log analysis, statistical analysis
C. Data mining, such as user behavior analysis, interest division, regional display
D. Real-time online data analysis
A. remove
B. update
C. delete
D. compact
A. Load the file of the local path directly into the Hive table
B. Insert result set from other table into Hive table
C. Load files on HDFS into Hive tables.
D. Hive supports insert into! The method of a single record. So you can insert a single record directly on the command line
A. data integration
B. safety management
C. System Management
D. Service Governance
