Question1: If HDFS is deployed with a single name node, what limitations may exist? (multiple choice)
Question2: Which of the following options cannot be achieved through big data technology?
Question3: In Fusionlnsight HD products, a typical Kafka cluster contains several Producers, several Borkers, several Consumers and a Zookeeper cluster.
Question4: In Zookeeper's service model, the Leader node exists in the active-standby mode. All other nodes belong to the Follower node.
Question5: What is the default resource scheduler in YARN?
Question6: Kunpeng computing industry is a full-stack I1 infrastructure, industry applications and services built on the Kunpeng processor, including PCs, servers, storage, operating systems, middleware, virtualization, databases, cloud services, industry applications and consulting management services Wait.
Question7: Which instance must the Loader instance be deployed with in FusionlnsightHD?
Question8: Which of the following is not a core element of KrbServer?
Question9: Which one of the following is not a role or service involved in the HBase read data process?
Question10: Which of the following options are action operators?
Question11: Kafka is a distributed message publishing and subscribing system. It only forwards messages and does not save messages.
Question12: Which of the following descriptions of HBase FileStream (HFS) are correct? (Multiple choice)
Question13: Loader only supports the data import guide between relational database and HBase.
Question14: Hive comparisonAtWhat are the advantages of a traditional data warehouse?
Question15: The following figure shows the storage locations of files A, B, C, and D.
Among them, A and B are related, and their storage locations conform to the colocation strategy of Colocation.
Question16: What log download methods does Fusionlnsight HD support? (Multiple choice)
Question17: A user needs to build a 350-node Fusionlnsight HD cluster. Which planning solution is the best?
Question18: Which of the following statements about Fusioninsight HBase visual modeling are correct? (Multiple choice)
Question19: Which of the following description of the flink window is wrong? (Multiple choice)
Question20: In Hadoop, if yarn.scheduler.capacity.root.Queue A.
minimum-user-limitpercent is set to 50, which of the following statements is wrong?
Question21: When planning and deploying a Fusionlnsight cluster, it is recommended that the management node be best deployed( ), the control node needs to be deployed at least( )Piece,Data nodes need to be deployed at least( )Piece.
Question22: What are the types of znodes in Zookeeper?
Question23: Spark on YARN-clienti is suitable for production environment because it can see the output of APP faster.
Question24: When Fusionlnsight HD products deploy Kerberos and LDAP services, which of the following descriptions are correct?
Question25: Which of the following belongs to DDL (Data Definition Language) in Hive SQL?
Question26: As the following figure, regarding the flume data transmission architecture, what are the components at the "?"?
Question27: In YARN, which of the following tasks is the "slave" node responsible for? (Multiple choice)
Question28: In the Flink technical architecture, ______ is the calculation engine for stream processing and batch processing.
Question29: The Fusioninsight HD cluster planned by a bank has 90 nodes. If three control nodes are planned, it is recommended to plan only one data node in the cluster.
Question30: What interfaces does Fusioninsight Manager support when interfacing with external platforms?
Question31: The key features of Zookeeper include which of the following options?
Question32: Fusionin, a graphical health inspection tool The sight Tool consists of FusionCare and SysCheckerp.
Question33: HUAWEI CLOUD MapReduce service provides tenants fully controllable-station enterprise-level big data cluster cloud service, fully compatible with open-source interfaces, combined with HUAWEI cloud computing, storage advantages and big data industry experience, to provide customers with high performance, low cost, Flexible and easy-to-use full-stack big data platform, easy to run Hadoop, Spark, HBase. Kafka, Storm and other big data components. Realize real-time and offline analysis and mining, and discover new business opportunities.
Question34: Which component controls the master/slave arbitration in HDFS?
Question35: On the Fusioninsight Manager interface, when an alarm of insufficient disk capacity of Kafka is received, and the cause of the alarm has been eliminated from the hard disk hardware failure, the system administrator needs to consider expanding the capacity to solve this problem.
Question36: What log download methods does Fusionlnsight HD support?
Question37: NodeManager memory andCThe number of PUs is configured by which of the following options?
Question38: In the MRS interface, Loader can specify a variety of different data sources, configuration data cleaning and conversion steps, and configure cluster storage systems, etC. .
Question39: Regarding the comparison between Hive and traditional data warehouse, which is wrong in the following description?
Question40: There are two ways to clean up Kafka logs: delete and compact. The default value is delete.
Question41: In the Fusioninsight HD platform, HBase does not currently support secondary index.
Question42: Big data requires a change in traditional industry thinking. Data collection and analysis should be regarded as an important part of business processes. The data end drives business process optimization, realizes intelligence and automation, and realizes cross-border expansion by relying on data assets.
Question43: Which of the following scenarios in HBase will trigger the F1ush operation?
Question44: The most basic unit of distributed storage in HBase is Region.
Question45: Streaming:Event listening is mainly implemented through which of the following services provided by Zookeeper?
Question46: In the Fusionlnsight cluster, which of the following components does Spark mainly interact with? (Multiple choice)
Question47: inWebHCatin the architecture. Users can use the secureHTTPSprotocolexecuteDo which of the following actions?
Question48: Which of the following information is included in the Zookeeper client command? (Multiple choice)
Question49: Flink is a unified computing framework that combines batch processing and stream processing. Its core is a stream data processing engine for data distribution and parallel computing.
Question50: All nodes of ZooKeeper can handle read requests.
Question51: Flink supports Localt mode and Clustert mode deployment. Other modes are not supported at the moment.
Question52: Regarding DataSet, which of the following statements is incorrect?
Question53: HiveManaged tables and external tables can be created, which of the following descriptions is correct for both types of tables?
Question54: Flink is suitable for applications with high concurrency processing data and millisecond delay.
Question55: The capacity scheduler is performing resource allocation. The existing two queues Q1 and Q2 at the same level have a capacity of 30. Among them, Q1 has used 8 and Q2 has used 14, and the resource will be allocated to Q1 first.
Question56: Redis multi-server nodedeploy, the client sends a requestbeggingtake officemeaning? ?,if? ?check itself is not key placementnode, thenwill requestto itshe?.
Question57: In the Loader of Fusioninsight HD, a connector can only be assigned to one job.
Question58: When using HBase for data reading services in Fusioninsight HD, you need to connect to HMaster.
Question59: One of the goals of the data center technology architecture is to be able to solve the disadvantages of traditional data warehouses that tend to become data islands and big data platforms that tend to become data swamps.
Question60: When using Loader to import and export data, it must go through the Reduce phase for data processing.
Question61: When the HDFS Client writes a file, the first copy of the data is determined by the NameNode, and the other copies are written by the Data Node.
Question62: Which is not the channel type of Flume
Question63: Which is the correct description of the Loader job in Fusionlnsight HD?
Question64: F1ink is a unified computing framework that combines batch processing and stream processing. Its core is a stream data processing engine for data distribution and parallel computing.
Question65: The figure below shows the configuration of HDFS tiered storage. If the number of copies of a block is 4. Which of the following statements is wrong?
Question66: Which of the following descriptions about Kafka partition offset is incorrect?
Question67: 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 put forward for multiple copies of data and disaster tolerance mechanisms.
Question68: When creating a Loaderf job, in which of the following steps can the filter type be set?
Question69: In Hive, which of the following statements about partitions is incorrect
Question70: Which of the following options belong to Fusioninsight data security? (Multiple choice)
Question71: Which statement is correct about worker (worker process), Executor (thread) and task (task)?
Question72: Regarding the client uploading files to the HDFS file system, which of the following statement is correct?
Question73: From the point of view of the life cycle, what stages does data mainly go through?
Question74: Kerberos, as an authentication server center, can provide unified authentication services to all services in the cluster and secondary development applications of customers.
Question75: Which of the following options is correct about the meaning of Zookeeper reliability?
Question76: Kafka, as a distributed messaging system, supports online and offline message processing, and provides javaAPI for the docking of other components. In the Fusioninsight solution, Kafka belongs to the Fusionlnsight HD module.
Question77: In the MRS service, the unavailability of the Zookeeper service will result in the unavailability of the kafka service.
Question78: F1ume is used to collect data, and the basic unit of data transmitted by the device is
Question79: Indataduring stream processing. eachthingpieceTimeWhich of the following three can be divided into?
Question80: When creating a Loaderf job, in which of the following steps can the filter type be set?
Question81: Assuming that HDFS only saves 2 copies when writing data. During the writing process, the HDFS Client first writes the data to DataNodel1 and then writes the data to DataNode2.
Question82: Which of the following is not a mandatory option when creating a Loader job?
Question83: Which of the following descriptions is correct about the deployment of big data components on Kunpeng and X86 servers? (Multiple choice)
Question84: YARN manages cluster resources through ResourceManager. What are its main functions? (Multiple choice)
Question85: Regarding the relationship between Hive and other components of Hadoop. Which of the following descriptions is wrong?
Question86: Regarding the management operation of Fusionlnsight Manager to the service, which of the following is incorrect?
Question87: When the Fusioninsight Manager interface shows that the Hive service status is Bad, what are the possible reasons? (Multiple choice)
Question88: The Fusionlnsight HD cluster contains many kinds of services, and each service consists of thousands of roles. Which of the following are the roles of the service?( )
Question89: What is the default resource scheduler in YARN?( )
Question90: Which component controls the primary and secondary arbitration in HDFS?
Question91: In Huawei's big data solution, LadpServer, as a directory service system, can implement centralized management of accounts on the big data platform. The following statement about LdapServer is correct:
Question92: What are the main characteristics of big data analysis related technologies?
Question93: In the Output stage, Structured Streaming can define different data writing methods, including which of the following methods?
Question94: Compared with MapReduce computing, Spark uses ____ resources to obtain ____ times the performance?
Question95: The following description about the flink window is wrong
Question96: Flink is a computing framework that combines batch processing and stream processing. Its core is a stream data processing engine for data classification and parallel computing.
Question97: There is no single point of failure in the Discovery module of elasticSearch.
Question98: Which of the following options does the main role of Zookeeper in distributed applications not include?
Question99: What can the unified certification management system of mainstream manufacturers consist of? (Multiple choice)
Question100: When the Fusionlnsight HD product deploys Kerberos and LDAP services, which of the following descriptions is correct? (Multiple choice)
Question101: Which of the following descriptions of Flink key features are wrong?
Question102: In the Fusioninsight product, which statement is correct about the Kafka component?
Question103: Which of the following commands are of the set type? (Multiple choice)
Question104: Which of the following processing methods is unreasonable when the window has been closed and the calculation result has been produced when the delayed event occurs?
Question105: Which way does ElasticSearch index data use?
Question106: Which of the following descriptions about the functions of HMaster in HBase are correct? (Multiple choice)
Question107: In the operation process of Flink, which role is responsible for applying for resources?
Question108: Which of the following options belong to Fusioninsight data security?
Question109: Data in FlumeCompression characteristics are mainlyYesFor which of the following purposes?
Question110: What data does Fusion Insight Manager back up regularly? (Multiple choice)
Question111: carriage return as its row separator. In Huawei Fusioninsight Hiver, you can specify the input and output format processing classes of table data.
Question112: How many fragments does an index library of ElasticSearch have by default?
Question113: If you want to add 1 to the digital value stored in the Key, which command should you use?
Question114: Similar to Spark Streaming, Flink is an event-driven real-time streaming system
Question115: 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? (Multiple choice)
Question116: Which of the following statements about Huawei's big data solution is correct? (Multiple choice)
Question117: F1ume supports monitoring and transmission of newly added files in the directory, enabling data transmission. Which type of source is described above?
Question118: In order to consider performance optimization, it is recommended to deploy LdapServer and KrbServer on the same node in all clusters.
Question119: In the Kafka cluster, the role of the Kafka server is:
Question120: The combine of MapReduce in the Map phase is a pre-grouping process and is optional.
Question121: In the Hadoop system, if the backup factor of the HDFS file system is 3, then each time MapReduce runs a task, it must transfer the file segments to be processed from 3 machines with replicas.
Question122: What are the key features of Streaming in Huawei's big data product Fusioninsight HD? (Multiple choice)
Question123: The description of the role of the standby NameNode in the HDFS system, which is correct? (Multiple choice)
Question124: Which of the following descriptions of Zookeeper features is wrong?
Question125: To set the maximum resource usage of queue QueueA in YARN, which parameter needs to be configured?
Question126: Which of the following are important roles of Spark? (Multiple choice)
Question127: InHive, which of the following statements about partitions is incorrect?
Question128: The following aboutHiveComponent capabilities in the architecture. Which is the correct description?
Question129: What data types of application scenarios is HBase of Hadoop not suitable for?
Question130: What query types does ElasticSearch have? (multiple choice)
Question131: Which of the following are used to configure the number of memory and CPU of the NodeManager? (Multiple choice)
Question132: Spark on YARN-client is suitable for production environments because you can see the output of the APP faster.
Question133: The index data of ElasticSearch can only be stored in the HDFS system.
Question134: When a RegionServer fails, the Region on the failed RegionServer is migrated. (fill in the blank)
Question135: What are the advantages of going to solutions for the industry?
Question136: When Flume processes are cascaded, which of the following sink types are used to receive messages sent by the last hop Flume? (Multiple choice)
Question137: Multiple channels can be configured in the properties.protertises configuration file of Flumef to transmit data
Question138: How does ElasticSearch index data?
Question139: Which of the following components does the platform architecture of Huawei's big data solution include?
Question140: When installing a Fusionlnsight HD cluster in safe mode, which components must be installed?
Question141: What are the main features of YARN capacity scheduler? (Multiple choice)
Question142: Which of the following belong to DDL (Data Definition Language) in Hive SQL? (Multiple choice)
Question143: The "Group by" in Hive refers to dividing a data set into several small data sets through certain rules, and then performing data grouping processing for several small data sets.
Question144: Among the Kerberos service roles, KerberosServer mainly provides authentication functions, and KerberosAdmin mainly provides user management functions.
Question145: During the Flume data collection process, among the following options, the data which can be filtered and modified is:
Question146: F? ?Include? ?Second major?, the following are about these two? ?Which one is it?
Question147: LdapServe in Huawei's big data platform can support different types of operations such as query, update, and authentication.
Question148: Which parameters need to be configured to enable the log aggregation function of the Yam component in the Hadoop platform?
Question149: Fusioninsight is Huawei's unified platform for enterprise-level big data storage, query, and analysis. It can help enterprises quickly build massive data information processing systems, and discover new value points and business opportunities through real-time and non-real-time analysis and mining of massive information data.
Question150: What are the characteristics of Spark?
Question151: Flume supports monitoring and transferring new files under the directory, which can realize data transfer. What kind of source is described of the following?
Question152: Regarding the order of the YARN scheduler allocating resources, which one of the following descriptions is correct?
Question153: The MOB data in HBaser is directly stored in the HFile format on HDFS. Then, the address information and size M information of this file are stored as value in the store that manages HBase. These files are centrally managed through tools. This can greatly reduce the frequency of compation and split of HBase and improve performance.
Question154: After submitting the topology using the Streaming client shell command in the Fusioninsight HD system, using the Strom UI to view it, it is found that the topology has not processed data for a long time. What are the possible reasons? (Multiple choice)
Question155: Streaming of Fusioninsight HD is weakly dependent on Zookeeper, even if Zookeeper fails, Streaming can provide services normally.
Question156: Which data type application scenarios are not suitable for Hadoop's HBase?
Question157: "Group by" in Hive refers to dividing a data set into several small data sets through certain rules. Then perform data group processing for several small data sets.
Question158: What data does Fusioninsight Manager back up regularly? (Multiple choice)
Question159: HMaster needs to be connected when using HBase for data reading service in Fusioninsight HD
Question160: Which of the following options are Huawei Kunpeng industrial products?
Question161: When HBasel is deployed in a Fusioninsight HD cluster with N nodes, it is recommended to deploy( )HMasteri process,( )A RegionServeri process.
Question162: In the Fusioninsight Manager interface, which of the following options is not included in the operation of the loader?
Question163: What types of data sources does F1ink stream processing include?
Question164: What modules does the Spark framework include? (Multiple choice)
Question165: When FusionInsight Manager is connected to an external management platform, which interfaces are supported? (Multiple choice)
Question166: When a Region in HBase performs a Split operation, at what stage does the process of separating an HFile file into two regions occur?
Question167: As shown in the figure, the following description of the message read by the Kafka message consumer Consumeri is wrong?
Question168: 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?
Question169: Capacity schedulingThe processor allocates resources for each queue, which of the followingOptionsis in the queueresourcescheduleStrategy?
Question170: When creating a Loader job, which of the following steps can be used to set the number of maps?
Question171: The ResourceManager adopts a high-availability solution. When the Active resourcemanager finds a fault, it can only start the standby resourcemanager through the built-in zookeeper and switch its state to active.
Question172: Which of the following commands downloads directory files from HDFS to local?
Question173: What are the performance bottlenecks of traditional data processing?
Question174: Which of the following statements about ZKFC is wrong?
Question175: If it is necessary for the data producer to determine the data sent to a certain task of the target Bolt, which of the following message publishing strategies should be selected?
Question176: How is the main master of HBaseM elected?
Question177: What are the functions of Nimbus in the Streaming architecture?
Question178: ElasticSearch can be used as a relational database similar to MySQL.
Question179: In the HDFS federated environment, which of the following contents are included in the NameSpace
Question180: In Fusioninsight HD, which of the following is not part of the flow control feature of Hive? (Multiple choice)
Question181: Regarding DataSet, which of the following statements is incorrect?
Question182: Regarding the task selection of the capacity scheduler, which statement is correct?
Question183: Which of the following scenarios is Flumej suitable for data collection?
Question184: In creating a Loader job, which of the following steps can be used to set the filter type?
Question185: When deploying Solr on Fusioninsight HD, if you choose to store the index on the local disk, it is recommended to mount a separate disk for the data directory of each SolrServer instance, and configure the disk as RAID0 or RAID5.
Question186: Which of the following two methods are used for cleaning logs in Kafka?
Question187: Neither Spark nor Hadoopi are suitable for iterative computing scenarios.
Question188: How is the HBaseM master elected?
Question189: Assuming that the amount of data is about 200GB: the maximum capacity of shards is limited to 30GB, what is the appropriate maximum number of shards?
Question190: Which of the following belongs to the features of Streaming? (Multiple choice)
Question191: All Kafka messages will be persisted to the hard disk. At the same time, Kafka ensures data reliability by setting Replicetion on Topic Partitio.
Question192: Redis supports multiple databases.
Question193: Which components in Fusioninsight HD can Zookeeper provide distributed management support for? (Multiple choice)
Question194: What are the main features of HBase?
Question195: Which of the following does not belong to the characteristics of the MapReduce component in Hadoop?
Question196: HiveServer compiles and parses the HQL statements submitted by the user into corresponding Yarn tasks, Spark tasks or HDPS operations, thereby completing data extraction, conversion, and analysis.
Question197: The smallest processing unit of HBase is Region. Where is the routing information between User Region and Region Server stored in?
Question198: What is the purpose of the HBase cluster to perform compaction regularly? (Multiple choice)
Question199: RDD has Transformation and Action operators. Which of the following are Action operators?
Question200: Driven Source is flume proactively obtains data periodically.
Question201: In the HDFS mechanism, the NameNode is responsible for managing metadata. Each read request on the client side needs to read metadata information from the metadata disk of the NameNode to obtain the location of the read file in the DataNode.
Question202: In Hive architecture, ( ) groupPiece is responsible for table, columnand Partition etC. yuandataRead, write and update operations
Question203: What kinds of Kafka message transmission guarantees are usually provided?
Question204: Which of the following statements about Sparkstreaming and Streaming are wrong?
Question205: Which of the following descriptions are correct about Fusionlnsight HD cluster upgrade? (Multiple choice)
Question206: The core concept of MapReduce is to decompose a large computing task into each node of the cluster to make full use of cluster resources to shorten the running time.
Question207: The overall process of Kafka Produceri reading data is that the Producer connects to any surviving Broker, requests the leader metadata information of the specified topic and partition, and then directly connects with the corresponding Brokerl to publish the data.
Question208: HDFSIs andeploypoints on the clusterclothfile system, becausethis,many numbersaccording toneedPassover gridEnterRowtransmission,the following aboutCommunication of HDFS?Which one of the protocol descriptions is wrong??
Question209: The client is a user operationHDFSThe most common way. the following aboutHDFSThe description of the client issureyeswhich?
Question210: If there are only Default, QueueA and QueueB sub-queues in the YARNU group, then their capacities are allowed to be set to 60%, 25%, and 22% respectively.
Question211: If the physical memory utilization of some Containers exceeds the configured memory threshold, but the total memory utilization of all Containers does not exceed the set NodeManager1 memory threshold, then the Containert with excessive memory usage can still continue to run.
Question212: A typical Kafka cluster contains several Producers, several Brokers, several Consumers and a ZooKeeper cluster.
Question213: Which of the following are enterprise-level big data application scenarios
Question214: What are the successful cases of Huawei Fusioninsight HD in the industry?
Question215: Which of the following sub-products does the Fusioninsight family include? (Multiple choice)
Question216: HUAWEI CLOUD MapReducel service provides tenants fully controllable - one-stop enterprise-level big data cluster cloud service, fully compatible with open source interfaces, combined with HUAWEI cloud computing, storage advantages and big data industry experience, to provide customers with high-performance, low-cost, The flexible and easy-to-use full-stack big data platform can easily run big data components such as Hadoop, Spark, HBase.Kafka, Storm, etC. Real-time and offline analysis and mining to discover new business opportunities.
Question217: The smallest processing unit of HBase is Region, and the routing information between User Region and RegionServer is stored in Zookeeper.
Question218: In the Fusioninsight cluster networking design, the Layer 2 networking refers to the Layer 2 switching in the cluster. The cluster nodes are in a subnet, which is suitable for cluster scenarios with nodes less than 200.
Question219: The Group of LdapServer is a unified group management for users. If a user is added to the group, the dn record of the member will be added to the member attribute of the group.
Question220: Which module in Hadoop is responsible for data storage in HDFS?
Question221: HBasoTo achieve the scale of bench drills with billions of accidents and millions of columns, which of the following options is required?
Question222: HDFSmiddle,piece(BlocThe size of k) is much larger than the smallest singleYuan,can be minimalchangeSearchingsiteout of the box.
Question223: What is the core module of spark?
Question224: Which of the following links is the data conversion operation of F1ink completed?
Question225: Which service process manages the Region of HBasel?
Question226: Which of the following sub-products does the Fusioninsight family include? (Multiple choice)
Question227: Hive supports normal views and materialized views.
Question228: What is the index name of ElasticSearch?
Question229: Which object cannot be managed by Fusion Insight manager?
Question230: In Huawei Fusioninsight, HBase's table design tool, connection pool management and enhanced $DK can simplify the business development of complex data tables.
Question231: The correct steps for data transformation in Fusioninsight HD are
Question232: In Fusioninsight HD, which of the following does not belong to the flow control feature of Hive? (Multiple choice)
Question233: What information does a KeyValue format in HFile of HBase data file contain? (Multiple choice)
Question234: Map Reducein MaThe combine in stage p is a pre-grouping process and is optional.
Question235: Which of the following components must depend on Zookeeper to run? (Multiple choice)
Question236: When installing the Streaming component of Fusionlnsight HD, how many nodes are required to install by the Nimbus role?
Question237: On the FusionInsight Manager interface, when a warning about insufficient kafka wipe disk capacity is received, and the cause of the warning has been eliminated from the hard disk hardware failure, the system administrator needs to consider expanding the capacity to solve this problem.
Question238: In YARN, "Which of the following work is the slave node responsible for?
Question239: After submitting the topology using the Streaming client shell command in the Fusioninsight HD system, use Strom The UI view shows that the topology has not processed data for a long time. What are the possible reasons?
Question240: What are the following main functions of FusionInsightManager?
Question241: Which of the following options cannot be achieved through big data technology?
Question242: Which of the following aspects reflect Fusioninsight HD data high reliability? (Multiple choice)
Question243: Which of the following languages are supported by the Flink streaming data processing interface Datastream API? (Multiple choice)
Question244: In the WebHCat architecture, which of the following operations can users perform over the secure HTTPS protocol
Question245: In the WebHCat architecture, which of the following operations can users perform through the secure HTTPS protocol?
Question246: Among the following options, which are the processes that MapReduce will have?
Question247: Fusioninsight Manger supports REST interface, SNMP interface and SYSLOG interface externally
Question248: When Solr creates CollectionE, it is recommended to select the routing algorithm as compositld Router, then the Collection can expand shard.
Question249: What are the performance bottlenecks of traditional data processing? (Multiple choice)
Question250: Which of the following descriptions about Fusioninsight CTBase is wrong?
Question251: In the Fusioninsight product, which of the following statement about the Kafka component is correct? (Multiple choice)
Question252: Which of the following descriptions about HBase secondary indexes is correct?
Question253: In Flink, the checkpoint mechanism can ensure that when the application fails during operation, it can recover from a certain checkpoint. During this process, the flow snapshot is established according to the inflow of data
Question254: FLINK adopts the checkpoint mechanism to ensure fault tolerance in the running of applications.
Question255: In the operation process of F1ink, the role responsible for applying for resources is
Question256: Which of the following options are suitable for MapReduce scenarios?