F1ume supports monitoring and transmission of newly added files in the directory, enabling data transmission. Which type of source is described above?
When the loader in Fusioninsight HD imports files from the SFTP server, which of the following file types does not require encoding conversion and data conversion and is the fastest?
When the Loader of Fusioninsight HD creates a job, what is the function of the connector?
In many small file scenarios, Spark will start many tasks. When there is a Shuffle operation in the SQL logic, the number of hash buckets will be greatly increased, which will seriously affect the performance. In Fusioninsight, scenarios for small files usually use the( )Operator to merge partitioni generated by small files in Tabler, reduce the number of partitions, avoid generating too many hash buckets during shuffle, and improve performance?
A user needs to build a FusionInsightHD cluster with 350 nodes. Which planning solution is the best?
Which of the following operations are recorded in the Fusioninsight HD system audit log unavailable?
In the YARN service, if you want to set the capacity of the queue QuqueA to 30%, which parameter should be configured?
RowKey of a table in HBase:Divide the SplitKey into 9, e, a, z. How many Regions does this table have?
Which two roles are responsible for the active and standby status management of HDFS NameNode nodes and the merging of metadata files?
In Hadoop, if yarn.scheduler.capacity.root.QueueA. minimum-user-limit-percenti is set to 50, which of the following statements is wrong?
In an MRS cluster, which of the following components does Spark mainly interact with?
Which of the following options does the main role of Zookeeper in distributed applications not include?
RDD has Transformation and Action operators. Which of the following belongs to the Action operator?
FlinkThe time window can be divided into the following three types of windows according to the different implementation principles?
Multiple channels can be configured in the properties.protertises configuration file of Flumef to transmit data
Which of the following options are correctHBasoProcess description of reading and datastatedcorrect?
In the Fusioninsight HD system, if dirty data is generated while the Loader job is running, the status of the Loader job execution result must be failed.
MapReduce - When a task fails, the task can be recalculated through a retry mechanism.
With the continuous increase in the volume of big data, the requirements for the physical security of data storage are getting higher and higher, and higher requirements are also put forward for the multiple copies of data and disaster recovery mechanism.
About HDFSThe function of the NameNode, which one of the following descriptions is wrong?
The job of Loader fails to execute, and the imported data will not be deleted automatically, and must be deleted manually.
Hive is a data warehouse infrastructure built on Hadoop. It provides a set of tools that can be used to perform extract-transform-load (ETL), a mechanism for storing, querying, and analyzing large-scale data stored in Hadoop.
HDFSmiddle,piece(BlocThe size of k) is much larger than the smallest singleYuan,can be minimalchangeSearchingsiteout of the box.
In the numberaccording toDuring stream processing, eachthingThe time can be divided into which of the following three?
A website learning activity. Ask to count the number of user visits per minute to this network. To achieve this requirement, which of the following options is the most appropriate?
The reliability of flume's data transmission means that in the process of data transmission, flume can automatically switch to another route to continue transmission when the next-hop flume node fails or the data is received abnormally.
A large enterprise needs to do log analysis, operation and maintenance monitoring,searchWith recommendation, database acceleration, can be used for the enterpriseWhich are recommendedwork?
All messages in Kafka will be persisted to the hard disk. At the same time, Kafka ensures data reliability by setting Replication to Topic Partitio.
When creating a Loaderf job, in which of the following steps can the filter type be set?
The following optionsitem, offAtZooKeeper is reliableSexual inclusionWhich is the correct expression?
Data in FlumeCompression characteristics are mainlyYesFor which of the following purposes?
When creating a Loader job, in which of the following steps can the number of Maps be set?
In a point-to-point messaging system, data in the queue can be consumed by one or more consumers, but a message can only be consumedoneSecond-rate.
In Hive architecture, ( ) groupPiece is responsible for table, columnand Partition etC. yuandataRead, write and update operations
When a certain task of MapReduce fails, the task can be recalculated through the retry mechanism.
When Solr creates CollectionE, it is recommended to select the routing algorithm as compositld Router, then the Collection can expand shard.
Fl? ?in transmissiondata process. Data can be simply filtered.hostwantby setting( )at Source? ?between (writeCa?Before)ordon't caredata is filtered.
Colocation (identical distribution) The same distribution at the file level realizes fast access to files. It avoids a lot of network overhead caused by data relocation.
. The open source big data platform based on Hadoop mainly provides distributed computing and storage capabilities for data. Which of the following are distributed storage components?
In Huawei's big data solution, which of the following components are included in the hadoop layer?
When the Hive service status is displayed as Bad on the Fusioninsight Manager interface, what are the possible reasons?
The following figure shows the label storage strategy of HDFS. Observe the figure below, which data nodes will HBasel data be stored on
YARN manages cluster resources through ResourceManager. What are its main functions?
SELECT a salary，b adiress FROM employee a JoiNsELECT adress FROM Employee info where provine ='zhejiang) b NO ananme=B. name: "What types of operations are included?
How many nodes are required to install the Nimbus role of the Streaming component of FusionInsight HD?
What can the unified certification management system of the new mainstream merchants consist of?
In Flink( )Interface for streaming data processing.( )interface for batch processing
In the Output stage, Structured Streaming can define different data writing methods, including which of the following methods?
AAppend Mode
B. Update Mode
C. General Mode
D. Ccomplete Mode
A Fusioninsight HD cluster contains multiple services, and each service consists of several roles. Which of the following are the roles of the service?
Regarding the basic operation of Hive table building, the correct description is
Which of the following descriptions about the deployment of big data components on Kunpeng and X86 servers is correct?
Which components in the Fusioninsight HD platform support table and column encryption?
Which of the following are the characteristics of Streamingl?
A data is stored first and then calculated
B. event driven
C. low latency
D. Can do continuous query
Are the following descriptions correct about the HBase file storage module (HBase FileStream, HFS for short)?
Which of the following statements about the LdapServer organizational model is correct?
Which of the following descriptions about the functions of HMaster in HBase are correct?
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TESTED 23 Nov 2024
