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السؤال #1
What is the purpose of a HBase cluster to execute Compaction regularly? "Multiple choices"
A. Reduce the number of files in the same Region and the same ColumnFamily
B. Improve data read performance
C. Reduce the file data of the same ColumnFamily
D. Reduce the number of files in the same region
عرض الإجابة
اجابة صحيحة: AB
السؤال #2
What is the correct statement in a Hadoop system for customers to upload files to the HDFS file system?
A. Client's file data is passed to the DataNode through the NameNode
B. The client divides the file into multiple blocks, and writes each DataNode in order according to the address information of the DataNode
C. The client writes the entire file to each DataNode in order according to the address information of the DataNode, and then the DataNode divides the file into multiple blocks
D. The client only uploads data to a DataNode, and is then copied by the NameNode Block
عرض الإجابة
اجابة صحيحة: B
السؤال #3
What is the index name of ElasticSearch?
A. ddcvc
B. doc
C. logstash-2020
D. 3sDqsm8Bu-kTplzOjqhL
عرض الإجابة
اجابة صحيحة: C
السؤال #4
Which two roles are responsible for the active and standby status management of HDFS NameNode nodes and the merging of metadata files?
A. ZKFC and standby NameNode
B. Primary NameNode and Standby NameNode
C. ZKFC and the main NameNode
D. Primary NameNode and JournalNode
عرض الإجابة
اجابة صحيحة: A
السؤال #5
Fusioninsight Hadoop:In the cluster, query through df-hT on a node. The partitions you see include the following: /var/log/srv/BigData/srv/BigData/hadoop/data5/srv/BigData/solr/solrserver3/What is the optimal RAID level planning combination for the disks corresponding to the srv/BigData/dbdadom partitions?
A. Raido Raid1 Raido Non-Raidl
B. Raidl Raid1 Non-RaidNon-Raid Raidl
C. Raido raido Raido Raido raid0
D. Non-Raid Non-Raid Non-Raid Non-Raid Raid1
عرض الإجابة
اجابة صحيحة: B
السؤال #6
Which of the following services can the Spark service read data from in the Huawei Fusioninsight HD cluster? (Multiple choices)
A. AYARN
B. BHDFS
C. CHive
D. DHBase
عرض الإجابة
اجابة صحيحة: BCD
السؤال #7
Kafka is a distributed message publish and subscribe system. It only forwards messages and does not save messages.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #8
What data does Fusioninsight Manager back up regularly? (Multiple choices)
A. NameNode
B. LDAP
C. OMs (orthophosphoric acid case)
D. DBService
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #9
What physical resources does Redis mainly consume?
A. emory
B. andwidth
C. ard disk space
D. isk I/O
عرض الإجابة
اجابة صحيحة: A
السؤال #10
What does Fusioninsight HD HBase use by default as its underlying file storage system?
A. HDFS
B. Hadoop
C. Memory
D. MapReduce
عرض الإجابة
اجابة صحيحة: A
السؤال #11
About the Fusioninsight HD installation process is correct?
A. Install Manager-> execute preinstall-> LLD tool to configure-> install cluster-> check after installation-> configure after installation
B. LLD tool configuration-> execute preinstall-> install Manager-> install cluster-> check after installation-> configure after installation
C. Install Manager-> LLD tool for configuration-> perform Reinstall-> install cluster-> check after installation-> configure after installation
D. LLD tool for configuration-> execute preinstall-> install cluster> install Managers-> check after installation-> configure after installation
عرض الإجابة
اجابة صحيحة: B
السؤال #12
The order in which the YARN scheduler allocates resources, which one of the following descriptions is correct?
A. Any machine -> same rack -> local resources
B. Any machine -> local resources -> same rack
C. Local resources -> same rack-＞Any machine
D. Same rack->any machine->local resources
عرض الإجابة
اجابة صحيحة: C
السؤال #13
A user needs to build a FusionInsightHD cluster with 350 nodes. Which planning solution is the best?
A. Management node, control node, and data node are deployed in one, layer-2 networking
B. Integrated deployment of management nodes and control nodes, independent deployment of data nodes, and Layer 2 networking
C. Management nodes, control nodes, and data nodes are independently deployed, with three-layer networking
D. The management node and data node are deployed together, the control node is independently deployed, and the two-layer networking
عرض الإجابة
اجابة صحيحة: C
السؤال #14
Regarding the ControllerNodeAgent in FusionlnsightManager, which statement is correct?
A. Controller sends heartbeat to NodeAgent every 3 seconds
B. NodeAgent accepts commands from Controller and executes specific actions
C. Controller must be deployed on each node
D. NodeAgent is open source enhanced
عرض الإجابة
اجابة صحيحة: B
السؤال #15
Which of the following descriptions about Zookeeper features is wrong?
A. The number of Zookeeper nodes must be odd
B. Updates sent by the client are applied in the order in which they were sent
C. Message updates can only succeed or fail, with no intermediate states
D. A message needs to be received by more than half of the servers
عرض الإجابة
اجابة صحيحة: A
السؤال #16
Which command in Redis is to view the remaining lifetime of the key?
A. ersist
B. xpired
C. xpire
D. tl
عرض الإجابة
اجابة صحيحة: D
السؤال #17
Fusionlnsight Manager supports large-scale cluster installation and deployment, monitoring, alarming, user management, rights management, auditing, service management, health check, problem location, upgrade, and patching.
A. True
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #18
Which statement is correct about the client uploading files to the HDF$ file system in the Hadoop system?
A. The file data of the client is passed to the DataNode through the NameNode
B. Allows the client to divide the file into multiple blocks, according to DaThe address information of taNodel is entered into each DataNode in order
C. The client writes the entire file to each DataNodel in sequence according to the address information of the DataNode, and then divides the file into multiple blos by the DataNode)ck
D. The client only uploads data to one DataNode, and then the NameNodet is responsible for block replication
عرض الإجابة
اجابة صحيحة: B
السؤال #19
Which parameter needs to be configured in YARN to set the maximum usage resource of queue QueueA?
A. yam
B. yarn
C. yarn
D. yarn
عرض الإجابة
اجابة صحيحة: D
السؤال #20
Which module in Hadoop is responsible for data storage in HDFS?
A. NameNode
B. Data Node
C. ZooKeeper
D. JobTaoker
عرض الإجابة
اجابة صحيحة: B
السؤال #21
RDD has Transformation and Action operators. Which of the following belongs to the Action operator?
A. reduceByKey
B. filter
C. map
D. saveAsTextFile
عرض الإجابة
اجابة صحيحة: D
السؤال #22
The figure below shows the data transmission architecture of flume. What is the component at the "?" in the figure?
A. Interceptor
B. Channel processor
C. Channel selector
D. None of the aboveA
عرض الإجابة
اجابة صحيحة: C
السؤال #23
Which of the following services can the Spark service read data from in the Huawei Fusioninsight HD cluster? (Multiple choices)
A. YARN
B. HDFS
C. Hive
D. HBase
عرض الإجابة
اجابة صحيحة: BCD
السؤال #24
Which of the following features does Spark provide? (Multiple choices)
A. ADistributed meat storage calculation engine
B. BDistributed File System
C. CUnified scheduling of cluster resources
D. DStream processing function
عرض الإجابة
اجابة صحيحة: AD
السؤال #25
Which of the following operations cannot be completed through Fusioninsight Manager?
A. Installation and deployment
B. Performance monitoring
C. Rights Management
D. Virtual machine allocation
عرض الإجابة
اجابة صحيحة: D
السؤال #26
FusionInsight Manager manages services, which of the following statements is wrong?
A. Can start, stop and restart the service
B. Services can be added and uninstalled
C. Uncommon services can be set to hide or show
D. Can view the current status of the service
عرض الإجابة
اجابة صحيحة: C
السؤال #27
Kafka is a distributed message publish and subscribe system. It only forwards messages and does not save messages.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #28
When the Loader of MRS creates a job, what is the role of the connector?
A. Configure how jobs connect to external data sources
B. Configure how jobs connect to internal data sources
C. Provide optimization parameters to improve data import and export performance
D. Make sure there are conversion steps
عرض الإجابة
اجابة صحيحة: A
السؤال #29
Which of the following factors contributed to the vigorous development of the era of big data?
A. Reduced hardware costs and increased network bandwidth
B. The rise of cloud computing
C. The popularization of smart terminals and the improvement of social demands
D. all of the aboveA
عرض الإجابة
اجابة صحيحة: D
السؤال #30
What is wrong about the architecture description of Hive in Fusionlnsight HD?
A. As long as one HiveServer is unavailable, the entire HiveEcluster is unavailable
B. HiveServert is responsible for accepting client requests, parsing, executing HQL commands and returning query results
C. MetaStore is used to provide raw data services and depends onDBServer
D. At the same time, only one HiveServer is in Active state, and the other is in Standby state
عرض الإجابة
اجابة صحيحة: A
السؤال #31
Through the unified user management system in the big data platform, the unified management of users, roles and organizations of various open source component application systems in the platform can be realized, and cross-domain single sign-on, logout and unification of various application systems can be realized authentication function.
A. rue
B. alse
عرض الإجابة
اجابة صحيحة: A
السؤال #32
Before installing the Fusioninsight HD software package, you must set the host names of all nodes in the cluster in the node's / etc / hosts file:
A. is correct
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #33
Which of the following descriptions about Hive features is incorrect?
A. lexible and convenient ETL
B. nly supports MapReduce computing engine
C. irect access to HDFS files and HBase
D. asy to use and easy to program
عرض الإجابة
اجابة صحيحة: B
السؤال #34
Which of the following HDFS commands can be used to check the integrity of a data block?
A. hdfs fsck / (correct answer>
B. hdfs fsck / - delete
C. hdfs dfsadmin - report
D. hdfs balancer - threshold 1
عرض الإجابة
اجابة صحيحة: A
السؤال #35
What is the purpose of a HBase cluster to execute Compaction regularly? "Multiple choices"
A. Reduce the number of files in the same Region and the same ColumnFamily
B. Improve data read performance
C. Reduce the file data of the same ColumnFamily
D. Reduce the number of files in the same region
عرض الإجابة
اجابة صحيحة: AB
السؤال #36
When installing the Streaming component of FusionlnsightHD, the Nimbus role requires several nodes to be installed
A. 3
B. 2
C. 4
D. 1
عرض الإجابة
اجابة صحيحة: B
السؤال #37
Kafka is a distributed message publish and subscribe system. It only forwards messages and does not save messages.
A. True
B. False
عرض الإجابة
اجابة صحيحة: B
السؤال #38
Which of the following operations cannot be completed through Fusioninsight Manager?
A. Installation and deployment
B. Performance monitoring
C. Rights Management
D. Virtual machine allocation
عرض الإجابة
اجابة صحيحة: D
السؤال #39
Which of the following programming languages does Spark implement?
A. C
B. C + ten
C. JAVA
D. Scale
عرض الإجابة
اجابة صحيحة: D
السؤال #40
Which of the following is the ElasticSearch node?
A. EsNode
B. Index
C. EsMaster
D. Cluster
عرض الإجابة
اجابة صحيحة: A
السؤال #41
Regarding the alarm of insufficient Kafka disk capacity, what is the following analysis incorrect for possible reasons?
A. AThe disk configuration (such as the number of disks and the disk size) used to store Kafka data cannot meet the current business data flow, resulting in the disk usage reaching the upper limit
B. BThe data storage time is too long, and the data accumulation reaches the upper limit of disk usage
C. CUnreasonable business planning, resulting in uneven data distribution, and some disks have reached the upper limit of utilization
D. DBroker node failure caused
عرض الإجابة
اجابة صحيحة: D
السؤال #42
Which of the following descriptions about Fusioninsight CTBase is incorrect?
A. TBase is a cluster table development framework based on HBasel
B. TBase provides a set of WebUI for metadata definition,Provides a medical-only watch design tool to reduce the difficulty of watch design
C. TBase's java API provides a set of interfaces for HBasej connection pool management
D. TBase's read and write data interface
عرض الإجابة
اجابة صحيحة: A
السؤال #43
Which module is responsible for Fusioninsight Manager user data storage?
A. CAS
B. AOS
C. Kerberos
D. LDAP
عرض الإجابة
اجابة صحيحة: D
السؤال #44
The minimum processing unit of HBase in Fusioninsight HD system is Region. Where is the routing information between User Region and RegionSeiver stored?
A. ZooKeeper
B. HDFS
C. Master
D. meta table
عرض الإجابة
اجابة صحيحة: D
السؤال #45
HDFSmiddle,piece(BlocThe size of k) is much larger than the smallest singleYuan,can be minimalchangeSearchingsiteout of the box.
A. ALSE
B. RUE
عرض الإجابة
اجابة صحيحة: B
السؤال #46
What is correct about Controller and NodeAgent in Fusioninsight Manager?
A. Controller sends heartbeat to NodeAgent every 3 seconds
B. NodeAgent accepts commands from Costroller and performs specific actions
C. Every node must deploy Controller
D. NodeAgent is open source enhanced
عرض الإجابة
اجابة صحيحة: B
السؤال #47
What is the purpose of a HBase cluster to execute Compaction regularly? "Multiple choices"
A. Reduce the number of files in the same Region and the same ColumnFamily
B. Improve data read performance
C. Reduce the file data of the same ColumnFamily
D. Reduce the number of files in the same region
عرض الإجابة
اجابة صحيحة: AB
السؤال #48
In FusionlnsightHD, if you need to view the users and rights groups currently logged in to HBase, what commands can you execute in the HBase shell?
A. use_pemission
B. whoami (Orthophosphoric answer)
C. who
D. get_user
عرض الإجابة
اجابة صحيحة: B
السؤال #49
When Solr creates a collection, the recommended route algorithm is composited router, so the collection can expand the shard.
A. s correct
B. alse
عرض الإجابة
اجابة صحيحة: B
السؤال #50
Which module in Hadoop is responsible for data storage of ZHDFS?
A. oo Keeper
B. ameNode
C. ataNode
D. obTraoker
عرض الإجابة
اجابة صحيحة: C

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