2021 Updated Verified H13-723-ENU dumps Q&As - Pass Guarantee or Full Refund
H13-723-ENU PDF Questions and Testing Engine With 155 Questions
NEW QUESTION 13
In Spark, which of the following is the operator that takes the intersection of the DataFrame?
- A. filter (condifionExpr: String): DataFrame
- B. intersect (other: Data Fra me): Data Fra me
- C. dropDuplicates():DataFrame
- D. join (right: DataFrame, join Exprs: Column): DataFrame
Answer: B
NEW QUESTION 14
When a task is submitted to the YARN cluster, which of the following options will generate a job id for the task?
- A. ResourceManager
- B. container
- C. NodeManager
- D. AppMaster
Answer: A
NEW QUESTION 15
Hive service and HBase service are deployed on a FusionInsight cluster, and two apps (applications) are deployed on Tomcat. One app is to access the HBase service, and the other app is to access the Hive service. Regarding authentication, which methods are as follows Is it right? (multiple choice)
- A. Just do authentication on the app that accesses the Hive service.
- B. Deploy these two apps to two independent Tomcats, and then authenticate each
- C. Combine these two apps into one and do authentication on the new app
- D. Just do authentication on the app that accesses the HBase service
Answer: B,C
NEW QUESTION 16
In FusionInsight HD, which of the following scenarios does Streaming apply to? (multiple choice)
- A. Offline log analysis
- B. Streaming data monitoring
- C. Traffic flow analysis
- D. Real-time access statistics of the website
Answer: B,C,D
NEW QUESTION 17
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. Solr user group, Solr admin role and Super group users can access Solr Admin UI
- B. Click Cloud to view the distribution and status of each ShardReplica under each Collection
- C. Click Tree under Cloud to view metadata information such as Collections, configuration sets and live_nodes in Solr Cloud
- D. 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 index
Answer: A,B,C,D
NEW QUESTION 18
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. PutList
- C. HTable
- D. HBaseAdmin
Answer: D
NEW QUESTION 19
In the FusionInsight HD HBase cluster, Table1 belongs to Namespace1, Table2 belongs to Namespace2, and Table1 has two column families, namely cf11 and cf12, and Table2 has a column family named cf21. Which of the following schemes allows user account A to be at the same time Have read and write permissions for cf11 and cf21. (Multiple choice)
- A. Grant the user account Namespace1 read and write permissions
- B. Give the user account global read permission
- C. Grant the user account Namespace1 and Namespace2 read and write permissions
- D. Grant the user account Table1 and Tablet2 read and write permissions
Answer: C,D
NEW QUESTION 20
Which of the following is correct about the HDFS client's file reading process? (multiple choice)
- A. The file data is first returned from the DataNode to the NameNode, and then sent from the NameNode to the client.
- B. If the client and the connected DataNode fail during reading, the client will abandon the failed node and connect to the node where the other replica is located.
- C. Support multiple clients to read the same file data from the DataNode at the same time.
- D. Download data from the nearest DataNode first.
Answer: B,C,D
NEW QUESTION 21
Which of the following table types does Hive support? (multiple choice)
- A. Bucket table
- B. Tilt table
- C. Partition table
- D. Partition + bucket table
Answer: A,B,C,D
NEW QUESTION 22
In Spark application development, which of the following codes can correctly count words?
- A. val counts = textFile.map (line=>line.split (" ")).map (word => (word, 1)).groupByKey ()
- B. val counts = textFile.flatMap (line=>line.split (" ")).map (word => (word, 1)).reduceByKey(_ +_)
- C. val counts = textFile.map (line => line.split ("')).map (-rd => (word, 1)).reduceByKey(_ +_)
- D. val counts = textFile.flatMap (line=>line.split (" ")).map (word => (word, 1)).groupByKey ()
Answer: B
NEW QUESTION 23
In Spark, the accumulator can realize high-speed parallel counter and variable summation; in the process of Spark application development, only the value of this counter can be obtained on the Driver.
- A. True
- B. False
Answer: A
NEW QUESTION 24
Regarding the Hive service of the FusionInsight HD platform and its WebHCat development interface, which of the following descriptions is incorrect?
- A. WebHCat provides external services based on HTTP and HTTPS protocols
- B. Support REST-based query request
- C. You can create tables, query and other operations through WebHCat
- D. The data format returned by WebHCat is XML
Answer: D
NEW QUESTION 25
Which source type does Flume support for real-time data collection?
- A. Thrift
- B. JMS
- C. Log4j
- D. taildir
Answer: D
NEW QUESTION 26
In FusionInsight HD, regarding Ooze job management, which of the following operations can be performed on suspended jobs? (multiple choice)
- A. resume
- B. kill
- C. submit
- D. run
Answer: A,B
NEW QUESTION 27
Which of the following is not a feature of MapReduce?
- A. Real-time calculation
- B. Easy to program
- C. High fault tolerance
- D. Good scalability
Answer: A
NEW QUESTION 28
Regarding Kafka's Producer, which of the following statements is correct? (multiple choice)
- A. Multiple Producer processes can be started at the same time to send data to the same topic
- B. Producer production data needs to specify Topic
- C. When Producer produces data, it needs to connect to ZooKeeper first, and then connect to Broker
- D. Producer is a message producer
Answer: A,B,D
NEW QUESTION 29
In MapReduce application development, which of the following JAVA classes is responsible for managing and running a computing task?
- A. Configuration
- B. Context
- C. lob
- D. FileSystem
Answer: C
NEW QUESTION 30
In which of the following is the MapReduce task finally executed?
- A. ResourceManager
- B. container
- C. NodeManager
- D. AppMaster
Answer: B
NEW QUESTION 31
For the design principles of HBase rowkey, which of the following descriptions is correct? (multiple choice)
- A. The attribute value with high access weight is placed in front of RowKey
- B. Attribute values with good dispersion are placed in the second half of Rowkey
- C. The attribute value with high access weight is placed in the second half of Rowkey
- D. The attribute value with good dispersion is placed in the first half of Rowkey
Answer: A,D
NEW QUESTION 32
In HBase of FusionInsight HD, which of the following scenarios will not trigger the Flush operation?
- A. The total memory of RegionServer exceeds the threshold
- B. Initiate Flush operation through the client specified method
- C. The scan caching is set too large when the client initiates a scan request
- D. The MemStore setting of the Region exceeds the threshold
Answer: C
NEW QUESTION 33
In FusionInsigt HD, if an application wants to complete Kerberos security authentication, which of the following options must be used? (multiple choice)
- A. jaas.conf configuration file
- B. krb5.conf configuration file
- C. The keytab file of the user account
- D. User account applied for on FusionInsight Manager
Answer: B,C,D
NEW QUESTION 34
In FusionInsight HD, in which ways can I view the debugging results of Oozie jobs? (multiple choice)
- A. Check whether the returned result of Oozie's JAVA API meets expectations
- B. Oozie's own web interface can also view job execution results
- C. Use Hue's file browser to check whether the desired file is generated in the HDFS specified directory
- D. View program running results through Hue's workflow dashboard
Answer: A,B,C,D
NEW QUESTION 35
Which role in Yarn manages the resources (CPU/Memory) of a single node?
- A. ResourceManager
- B. NodeManager
- C. Data Node
- D. NameNode
Answer: B
NEW QUESTION 36
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