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السؤال #1
HDFS is not suitable for which of the following business scenarios?
A. Large file storage
B. Large amount of small file storage
C. Mass data storage
D. Streaming file storage
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اجابة صحيحة: B
السؤال #2
In FusionInsight HD, regarding the secondary development of Hive UDF, which of the following descriptions is correct? (multiple choice)
A. Before the user-defined UDF is used, it needs to be created in the Hive system
B. User-defined UDF is not allowed to add information such as summary and status
C. User-defined UDF can add deterministic and statefull annotations according to the actual situation
D. In a secure cluster, user-defined UDFs are recommended to be created before each use
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اجابة صحيحة: AC
السؤال #3
The rowkey design of HBase table is a very important development and design link. Suppose there are the following scenarios. The most frequent query scenario is based on the mobile phone number to query the historical call records every month and every six months. Which of the following rowkey designs is the best?
A. Name + mobile phone number
B. Date + mobile phone number
C. Mobile number + datecorrect
D. Mobile phone number + name
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اجابة صحيحة: C
السؤال #4
For an application running on the MapReduce platform, where will the jar package that the application depends on be placed?
A. HIVE
B. HBASE
C. HDFScorrect
D. DB
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اجابة صحيحة: C
السؤال #5
In FusionInsigt HD, which of the following components can be used for data collection? (multiple choice)
A. Flumecorrect
B. Loadercorrect
C. HBase
D. MapReduoe
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اجابة صحيحة: AB
السؤال #6
In the process of Flume cascade transmission, you can use the fail over mode to transmit, so that if the Flume node of the next hop fails or the data is received abnormally, it can automatically switch to another way to continue transmission.
A. Truecorrect
B. False
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اجابة صحيحة: A
السؤال #7
existKafkain, aboutConsumerWhich statement is correct? (multiple choice)
A. Kou XinConsumerAPIConsumption data does not need to be specifiedZooKeeperaddress
B. mouthConsumerNeed to specify when consuming dataTopic
C. multiple mouthsConsumerconfigure the samegroup
D. mouthConsumerMainly for data consumption
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اجابة صحيحة: BCD
السؤال #8
In FusionInsight HD, for the creation and read-write permissions of various resources in Solr, which of the following statements is wrong?
A. Solr user group users can create a configuration set and specify the configuration set when creating a Collectioncorrect
B. Users of the Solr user group can create Collection
C. Collection creator, role with read and write access to the collection, and Solr admin role can update the collection
D. Only the collection creator and Solr admin roles can delete a collection
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اجابة صحيحة: A
السؤال #9
In the Hive application of FusionInsight HD, there are scenarios where the data storage file has a high compression efficiency, and most queries only involve a part of the file field. This scenario is suitable for ORC File storage.
A. Truecorrect
B. False
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اجابة صحيحة: A
السؤال #10
Which of the following methods can generateDStreamobject?
A. KafkaUtils
B. StreamingContext
C. StreamingContext
D. KafkaUtils
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اجابة صحيحة: ABCD
السؤال #11
existMapReduceIn application development of , which of the followingJAVA, Class responsible for managing and running a computational task?
A. lob
B. Context
C. FileSystem
D. Configuration
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اجابة صحيحة: A
السؤال #12
aboutKafkaofProducer, is the following statement correct? (multiple choice)
A. ProducerNeed to connect first when producing dataZooKeeper, and then connectBroker
B. Produceris a message producer
C. Can play multiple at the same timeProducerprocess to the sameTopicsend data
D. ProducerProduction data needs to be specifiedTopic
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اجابة صحيحة: BC
السؤال #13
Which of the following methods can generate DStream objects?
A. KafkaUtils
B. KafkaUtils
C. StreamingContext
D. StreamingContext
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اجابة صحيحة: ABCD
السؤال #14
When using Solr for full-text search, you can specify the response format of the query result through the wt parameter. Regarding the response format of Solr query results, what is wrong in the following statement?
A. Support CSV and JSON
B. Support CSV, JSON and HTMLcorrect
C. Support CSV, JSON and XML
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اجابة صحيحة: B
السؤال #15
The system time of the node where the HDFS client is located must be consistent with the system time of the FusionInsight HD cluster. If there is a time difference, the time difference should be less than a few minutes?
A. 5correct
B. 10
C. 20
D. 30
عرض الإجابة
اجابة صحيحة: A
السؤال #16
Which of the following reasons will cause HDFS NameNode to enter safemode (safe read-only mode)? (multiple choice)
A. The disk space where the metadata of the active and standby NameNodes reside is insufficient
B. The number of lost blocks exceeds the threshold
C. The missing copy exceeds the threshold
D. The damaged copy exceeds the threshold
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اجابة صحيحة: AB
السؤال #17
When designing a certain collection of Solr, you need to design its Schema, and realize the design of the Schema by configuring the schema.xml file. What is wrong about the Schema statement below?
A. For fields that do not need to store the original value, the stored attribute can be set to false
B. Schema is similar to the table structure in a relational database
C. For a field of the same document, there are multiple values, and they all need to be retained, then the multiValued of the field must be set to true
D. copyField can be defined as follows:
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اجابة صحيحة: D
السؤال #18
In FusionInsight HD, what are the computing frameworks that can be used in real-time processing scenarios? (multiple choice)
A. Spark Streamingcorrect
B. Streamingcorrect
C. MapReduoe
D. HDFS
عرض الإجابة
اجابة صحيحة: AB
السؤال #19
Which distributed computing frameworks can the Hive component of FusionInsigt HD run on? (multiple choice)
A. MapReduoe
B. HDFS
C. Streaming
D. Spark
عرض الإجابة
اجابة صحيحة: AD
السؤال #20
During the Solr application development of FusionInsight HD products, you can verify the Collection through the Solr Admin UI. Which of the following statements about Solr Admin UI is correct? (multiple choice)
A. Click Tree under Cloud to view metadata information such as Collections, configuration sets and live_nodes in Solr Cloudcorrect
B. Click Cloud to view the distribution and status of each ShardReplica under each Collectioncorrect
C. Enter the Core Overview interface of the Shard Replica of a Collection, you can view the actual number of documents, storage size and location information of the Replica indexcorrect
D. Solr user group, Solr admin role and Super group users can access Solr Admin UIcorrect
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اجابة صحيحة: ABCD
السؤال #21
In FusionInsight HD, which method of the OozieClient class will be called by the JAVA API of the Oozie client when running tasks?
A. suspend
B. getJobInfo
C. submit
D. runcorrect
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اجابة صحيحة: D
السؤال #22
Fusionlnsiht HDmiddle,Oozieclient'sJava APIwill be called when the task is runOozieClientWhich method of the class?
A. Asuspend
B. BgetJoblnfo
C. Csubmit
D. Drun
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اجابة صحيحة: D
السؤال #23
for running onMapReduceThe application on the platform that this application depends onjarWhere will the bag be placed?
A. AHIVE
B. BHBASE
C. CHDFS
D. DDB
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اجابة صحيحة: C
السؤال #24
When a MapReduce application is executed, which of the following actions occurred before the map phase?
A. splitcorrect
B. combine
C. partition
D. sort
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اجابة صحيحة: A
السؤال #25
HBase filters can set column names or column values ?? as filter conditions, and support multiple filters to be used together.
A. Truecorrect
B. False
عرض الإجابة
اجابة صحيحة: A
السؤال #26
Regarding the disaster tolerance of Streaming, which of the following statements is correct? (multiple choice)
A. After the Supervisor process exits, it can be automatically recognized and pulled up by Nimbus without affecting the running business
B. Worker can be automatically pulled up by Supervisor after abnormal exit without manual intervention
C. When a node fails, tasks on that node will be reassigned to other normal nodes without manual intervention
D. After Nimbus fails, the standby Nimbus will automatically take over, without affecting the running business
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اجابة صحيحة: ABCD
السؤال #27
Regarding Streaming's topology, what is wrong in the following description?
A. A Topology is a directed acyclic graph (DAG) connected by a set of Spout components and Bolt components through Stream Groupings
B. Topology will keep running until it is explicitly killed
C. Business logic is encapsulated in Topology
D. A Topology can only specify to start one Worker processcorrect
عرض الإجابة
اجابة صحيحة: D
السؤال #28
In Streaming application development, which interface does Bolt use to send Tuples?
A. execute
B. emit
C. open
D. nextTuple
عرض الإجابة
اجابة صحيحة: A
السؤال #29
What are the several parameter setting methods for Spark applications? (multiple choices)
A. Configure in the application configuration file spark-defaults
B. When submitting the application, set it through --confcorrect
C. In the application code, set by the setProperty method of SparkContext
D. In the application code, set through the SparkConf objectcorrect
عرض الإجابة
اجابة صحيحة: ABD
السؤال #30
In the implementation of the business logic of HBase writing data, which of the following interfaces or classes does not need to be involved?
A. Put
B. HTable
C. HBaseAdmincorrect
D. PutList
عرض الإجابة
اجابة صحيحة: C

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