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السؤال #1
YARN manages cluster resources through ResourceManager. What are its main functions?
A. The above statement is not correct
B. application management
C. log management
D. Cluster resource scheduling
عرض الإجابة
اجابة صحيحة: BD
السؤال #2
Big data needs the change of traditional industry thinking mode. Data collection and analysis should be regarded as an important part of the business process. Data-driven business process optimization, realizes intelligence and automation, and relying on data assets to achieve cross-border expansion.
A. Truecorrect
B. False
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اجابة صحيحة: A
السؤال #3
When using HBase for data read service in Fusionlnsight HD, you need to connect to HMaster.
A. True
B. Falsecorrect
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اجابة صحيحة: B
السؤال #4
There are two ways to clean Kafka logs: delete and compact. The default value is delete.
A. TRUEcorrect
B. FALSE
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اجابة صحيحة: A
السؤال #5
SparkStreaming has higher real-time performance than Storm.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #6
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
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اجابة صحيحة: A
السؤال #7
Which of the following is the wrong statement about ZooKeeper?
A. If ZooKeeper breaks during the synchronization message, after the fault is recovered, it can continue to synchronize according to the transmission status before the failure, that is, support the resume of the breakpoint
B. ZooKeeper uses a custom atomic message protocol to ensure the consistency of node data throughout the system
C. The ZooKeeper cluster elects the Leader role at startup
D. After receiving the data change request, the Leader node writes the disk first and then writes the memory
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اجابة صحيحة: A
السؤال #8
The () interface in Flink is used for stream data processing, and the () interface is used for batch processing.
A. Stream API, Batch API
B. DataStream API, Data Batch APIcorrect
C. Data Batch API, DataStream API
D. Batch API, Stream API
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اجابة صحيحة: B
السؤال #9
Flume supports monitoring and transferring new files under the directory, which can realize data transfer. What kind of source is described of the following?
A. spooling directory sourcecorrect
B. http source
C. exec source
D. syslog source
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اجابة صحيحة: A
السؤال #10
In the Flink technical architecture, () is the computational engine for stream processing and batch processing.
A. Standalone
B. Runtimecorrect
C. DataStream
D. FlinkCore
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اجابة صحيحة: B
السؤال #11
Now server.channels=ch1 is available, set the Channel type to File Channel, which of the following configurations are correct?
A. server
B. server
C. server
D. server
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اجابة صحيحة: A
السؤال #12
Which of the following method cannot see the Loader job execution results in FusionInsight HD system?
A. View through Yarn task managementcorrect
B. View through Loader UI interface
C. View through Manager alarm
D. View through NodeManagercorrect
عرض الإجابة
اجابة صحيحة: AD
السؤال #13
In the FusionInsight HD system, which is the LDAP data synchronously method?
A. One-way synchronizationcorrect
B. Two-way synchronization
C. isolation not synchronized
D. Data cross synchronization
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اجابة صحيحة: A
السؤال #14
Which of the following application scenarios generate data based on unstructured data? (Multiple Choice)
A. CRM customer relationship management businesscorrect
B. Seismic surveying and mapping analysis businesscorrect
C. Taobao online payment servicecorrect
D. Financial instrument imaging businesscorrect
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #15
In Fusioninsight products, about Kafka Topic, which of the following descriptions are incorrect?
A. Each topic can only be divided into one partitioncorrect
B. The number of Topic partitions can be configured at the time of creation
C. The storage level of each Partition corresponds to a log file, which records all information and data
D. Every message published to Kafka has a category, which is called Topic, which can also be understood as a queue for storing messages
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اجابة صحيحة: A
السؤال #16
In FusionInsight system, which component does not Flume data flow need to pass through in the node?
A. sourcecorrect
B. channel
C. sink
D. topiccorrect
عرض الإجابة
اجابة صحيحة: AD
السؤال #17
Which items need to be checked after FusionInsight HD cluster is installed successfully? (Multiple choice)
A. Service component health statuscorrect
B. system whether there is a warningcorrect
C. whether service configuration status is synchronizedcorrect
D. host health statuscorrect
عرض الإجابة
اجابة صحيحة: ABCD
السؤال #18
In Flink, the checkpoint mechanism can ensure that when the application fails during operation, it recovers from a certain checkpoint. During this process, stream snapshots are created sequentially according to the order of data inflow.
A. False
B. True
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اجابة صحيحة: B
السؤال #19
Which of the following options are action operators?
A. collect
B. mapPartiion
C. reduce
D. reduceByKe
عرض الإجابة
اجابة صحيحة: AC
السؤال #20
Which application scenarios is HBase not suitable for?
A. Require application scenarios with full ACID characteristicscorrect
B. Massive data application scenarios
C. High throughput application scenario
D. Semi-structured data application scenario
عرض الإجابة
اجابة صحيحة: A
السؤال #21
two Transformations. What types of data flow can be divided into?
A. distributingi flow
B. redistributing stream
C. one-to-many stream
D. one-to-one
عرض الإجابة
اجابة صحيحة: CD
السؤال #22
What is the default block size of HDFS in Fusioninsight HD system?
A. 32M
B. 64M
C. 128Mcorrect
D. 256M
عرض الإجابة
اجابة صحيحة: C
السؤال #23
What does the main features of Big Data Analysis related technology include? (Multiple Choice)
A. Machine learning, full featurecorrect
B. Data behind the incident correlation analysiscorrect
C. Based on massive datacorrect
D. Based on exact sample
عرض الإجابة
اجابة صحيحة: ABC
السؤال #24
What types of data nodes znode are there in Zookeeper? (Multiple Choice)
A. semi-persistentcorrect
B. ephemeralcorrect
C. temporary
D. persistentcorrect
عرض الإجابة
اجابة صحيحة: ABD
السؤال #25
What processes are included in the HBase service of Fusionlnsight HD? (Multiple choice)
A. HMastercorrect
B. Slave
C. HRegionServercorrect
D. Data Node
عرض الإجابة
اجابة صحيحة: AC
السؤال #26
The memory size allocated by YARN to the Container in the Hadoop system can be set by the parameter yarn.app.mapreduce.am.resource.mb.
A. True
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: B
السؤال #27
Fusionlnsight Manager's service management operations. What is wrong with the following statement?
A. The service can be restarted
B. Services can be added and uninstalled
C. Can be set to hide or show infrequently used services
D. You can view the current status of the service
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اجابة صحيحة: C
السؤال #28
Where is the Meta Region routing information of HBase metadata stored in?
A. Root table
B. Zookeepercorrect
C. HMaster
D. Meta table
عرض الإجابة
اجابة صحيحة: B
السؤال #29
Which one of the following commands can be used to clear the data of all databases under the Redis instance?
A. dropall
B. flushallcorrect
C. flushdb
D. dropdb
عرض الإجابة
اجابة صحيحة: B
السؤال #30
FusionInsight HD installation does not support non-root installation method.
A. Truecorrect
B. Falsecorrect
عرض الإجابة
اجابة صحيحة: AB

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