HCIA-Big Data V3.0
Last Update Sep 30, 2025
Total Questions : 649
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The kafka logs segment file naming rule is the first segment of the global partion/starting from o, and each subsequent segment file is named the maximum offset (offset message number) of the previous global partionE.
By configuring which of the following parameters can the logs generated in Kafkal be cleaned up?
"Group by" in Hive refers to dividing each data set into several small data sets through certain rules, and then performing data grouping processing for several small data sets.
The label-based scheduling of YARN is to label which of the following options?
In Spark On YARN mode, the node without NodeManager cannot start the executor to execute the Task
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 following figure shows the storage locations of files A, B, C, and D. A and B are related, and their storage locations conform to the Colocation strategy.
When creating a Loaderf job, in which of the following steps can the filter type be set?
The client writes data to any Zookeeper node. Zookeeper needs to fully synchronize the data to other nodes before returning to the client to write successfully.
Assuming that HDFS only saves 2 copies when writing data. Then during the writing process, HDFS Client first writes data to DataNodel1 and then writes data to DataNode2.0
F? ?middle is ten? ?Lightweight?of?Technology provides Cha? ?mechanism, distributed snapshots can? ?Tap Taak/Opara? ?The state data of the global unified snapshot processing.
During the deployment of Fusioninsight HD, the CheckNode.Config configuration file must be called when performing precheck to check each node.
A telecommunications companyplanopenexhibitionBigdatabusiness,target businesshavecustomer grouping,calendarHistorical bill analysis, real-time call charge analysis and other services. Which of the following options is the most appropriate in terms of functionality and cost to meet business needs?
HBase quickly determines that user data does not exist. (fill in the blank)
In Zookeeper's service model, the Leader node exists in the active-standby mode. All other nodes belong to the Follower node.
In Task Scheduling at YRN. oneAppliedMasterapply to? ?After that, the corresponding? ?communication,wantask it to enlightenmove.
There are two ways to clean up Kafkal logs: delete and compact. The default value is delete.
In the Fusioninsight HD platform, HBase does not currently support secondary indexes
Which of the following descriptions about the key features of F1ink is incorrect?
As shown in the figure, the following description of the message read by the Kafka message consumer Consumeri is wrong?
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?
Which statement about the DataNodel of HDFS in Huawei Fusioninsight HD system is correct?
Which of the following options is correct about the meaning of Zookeeper reliability?
When a Regioni in HBaser performs the Split operation, what stage occurs in the process of actually dividing an HFile file into two Regions?
What component does HBase use by default as its underlying file storage system?
Is the description of the role of the standby NameNode correct in the HDFS system?
Which of the following belongs to the shufle mechanism in the MapReduce process?
What are the correct understandings and descriptions of the main features of big data?
Which of the following descriptions about the HBase storage model is correct?
Which components in the Fusioninsight HD platform support table and column encryption?
The compatibility of F1ink is reflected in which of the following aspects?
In an MRS cluster, which of the following components does Spark mainly interact with?
In the F1ink technical architecture,( )is a computing engine for stream processing and batch processing
Which of the descriptions of the Loader job in FusionlnsightHD is correct?
In the Fusioninsight product, about the Kafka topic, which of the following descriptions are incorrect?
Which two roles are responsible for the active and standby status management of HDFS NameNode nodes and the merging of metadata files?
Which of the following descriptions about Hive log collection on the Fusioninsight Manager interface is incorrect?
Which of the following is not included in the schemai authentication method of Zookeeper?
In Fusioninsight HD, if you need to view the user and permission group currently logged in to HBase, what command can be executed in the HBase shell?
To set the maximum resource usage of QueueA in YARN, which parameter needs to be configured?
Which of the following is not a characteristic of the MapReduce component in Hadoopl?
Which of the following commands can be used to clear the data of all databases under the Redis instance?
SoIrCloud mode is cluster mode. In this modeSWhich of the following services does the olr server strongly depend on?
How many blocks are saved in HDFS by default in the FusionlnsightHD system?
The following figure shows the computational model of Structured Streaming. By observation, it can be concluded that the final calculation result of 3 is
Which components in FusioninsightHD can Zookeeper provide distributed management support for?
In the process of using Flume to transmit data, in order to prevent data loss due to the restart of the Flume process. Which of the following Channel types can be used
Which of the following statements about Zookeeper's Leaderi election is correct?
Which of the following scenarios is not suitable for HDFS?
A streaming data access
B. Lots of small file storage
C. Large file storage and access
D. random write
Hadoop:When the scale of the cluster is large, the distribution of data will be very critical. Users need to decide whether to expand the cluster and whether the data needs to be balanced according to the data distribution. The following statements about Fusioninsight resource distribution monitoring are correct:
As shown in the figure, which of the following options are wide dependencies
What are the main characteristics of big data analysis related technologies?
When the Hive service status is displayed as Bad on the Fusioninsight Manager interface, what are the possible reasons?
Are the following descriptions correct about the HBase file storage module (HBase FileStream, HFS for short)?
From the point of view of the life cycle, what stages does data mainly go through?
In the Fusioninsight product, which of the following descriptions are correct about the topic of creating Kafka?
Which of the following statements about the LdapServer organizational model is correct?
When the F1ume process is cascaded, which of the following sink types are used to receive the messages sent by the previous hop Flume?
Which of the following designs are mainly considered in the planning process of the big data business consulting service plan?
Kafka Cluster Mirroring. Which of the following functions can be achieved by the tool?
Regarding the task selection of the capacity scheduler, which of the following statements is correct?
Which of the following options are included in the key features of ZooKeeper?
MapReduce - When a task fails, the task can be recalculated through a retry mechanism.
TESTED 30 Sep 2025
