[Jul-2021] Huawei H13-723-ENU Dumps – Reduce Your Chance of Failure in H13-723-ENU Exam
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NEW QUESTION 83
Which of the following methods can generate DStream objects?
- A. StreamingContext.socketStream(..)
- B. KafkaUtils.createStream(...)
- C. KafkaUtils.createDirectStream(...)
- D. StreamingContext.fileStream(...)
Answer: A,B,C,D
NEW QUESTION 84
In the FusionInsight HD cluster, regarding the kinit operation command, which of the following statements are wrong? (multiple choice)
- A. Only machine-to-machine accounts can be used.
- B. A client does not support simultaneous use of multiple accounts.
- C. Only human-machine accounts can be used.
- D. The ticket obtained by executing this command will time out after 24 hours. You need to execute the kinit command again to log in again.
Answer: A,B,C
NEW QUESTION 85
In Flume, what is the main function of the source function module?
- A. Split the data and send the data to different destinations according to the characteristics of the data
- B. Cache data and save the data in memory or files according to different reliability strategies
- C. Obtain data and convert the original data into data objects that you process
- D. Output data to destination, support multiple output protocols
Answer: C
NEW QUESTION 86
When Flume writes into HDFS, what are the file generation methods? (multiple choice)
- A. According to the source file name, directly generate the file
- B. Set the size of a single file. When the file size reaches the set value, the old file will be closed and the new data will be written into the new file
- C. Set the number of events stored in a single file. When the number of events stored in the file reaches the set value, the old file will be closed and the new data will be written to the new file
- D. Set the file generation time interval. When the time interval is reached, the old file will be closed and the new data will be written into the new file
Answer: A,B,C,D
NEW QUESTION 87
In FusionInsight HD, which parts of a complete Streaming CQL application include at least? (multiple choice)
- A. Business operation statements (such as SELECT, INSERT, JION, etc.)
- B. Application submission statement
- C. Create an input stream
- D. Create an output stream
Answer: A,B,C,D
NEW QUESTION 88
Regarding the flow of data in Flume, which of the following descriptions is correct?
- A. (1) Data from sink to channle; (2) Source gets data from channel
- B. (1) Data from source to channel; (2) Sink gets data from channel
- C. (1) Data from channle to source; (2) Sink gets data from source
- D. (1) Data from channle to source; (2) Sink gets data from source
Answer: B
NEW QUESTION 89
In Kafka, is the following statement about the data sent by the Producer wrong? (multiple choice)
- A. Producer can send data to Broker, and can send data to Consumer
- B. As a message producer, Producer can directly write data to ZooKeeper
- C. Producer is responsible for producing data, Consumer is responsible for consuming data, Socket connection needs to be established between Producer and Consumer
- D. Producer can produce data by connecting to any normal Broker instance
Answer: A,B,C
NEW QUESTION 90
Which of the following descriptions about the characteristics of Kafka is correct? (multiple choice)
- A. Kafka can achieve message persistence
- B. Kafka can ensure that the messages in each Partition are in order
- C. Kafka is a high-throughput, distributed, publish-and-subscribe messaging system
- D. Kafka is suitable for offline and online message consumption scenarios
Answer: A,B,C,D
NEW QUESTION 91
In FusionInsight HD, Oozie supports HDFS Action.
- A. True
- B. False
Answer: A
NEW QUESTION 92
If a user wants to develop an application to access the HBase service, he first applies for a machine-to-machine account teste1, and sets the permission to access the HBase service: then download the keytab file of the account and use the account to run the application. Subsequent business requirements for this application require access to the Hive service. After the tested user is granted access to the Hive component, the user's keytab file needs to be re-downloaded.
- A. False
- B. True
Answer: A
NEW QUESTION 93
Because Spark is a memory-based computing engine, the amount of data that a Spars application can process cannot exceed the total memory allocated to the Spark application.
- A. False
- B. True
Answer: A
NEW QUESTION 94
In the FusionInsight HD product, what is the role name of the Kafka service?
- A. Producer
- B. Broker
- C. ZooKeeper
- D. Consumer
Answer: B
NEW QUESTION 95
In FusionInsigt HD, an application deployed on Tomcat needs to access the HBase service. In this scenario, it is recommended to use a machine-to-machine account.
- A. True
- B. False
Answer: A
NEW QUESTION 96
In the FusionInsight HD system, what interface types does Hive support? (multiple choice)
- A. Python interface
- B. Ruby interface
- C. ODBC interface
- D. JDBC interface
Answer: A,C,D
NEW QUESTION 97
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. Schema is similar to the table structure in a relational database. It is used to define the structure of index data. It mainly consists of three parts: unlqueKey, Field and FleldType.
- B. 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.
- C. For fields that do not need to store the original value, the stored attribute can be set to false.
- D. copyField can be defined as follows: <field name= " cat " type= " string " indexed = " true " stored = " true " docValues= " true " multiValued= " false " /> <field name= " dog " type = " string " indexed = " true " stored = " true " docValues= " true " multi Valued = " false " /> <field name= " text " type= " text_general " indexed = " true " stored = " false " multiValued = " false " /> <copyField source= " cat " dest= " text " maxChars= " 30000 " /> <copyField source= " dog " dest= " text " maxChars = " 30000 " />.
Answer: D
NEW QUESTION 98
In Spark, SparkSQL is an independent module, which can independently complete SQL statement parsing, optimization, and execution without relying on SparkCore.
- A. False
- B. True
Answer: A
NEW QUESTION 99
What is the role of the setMapOutputCompressorClass class in the development of MapReduce applications?
- A. Set the delivery method of map output
- B. Set the compression method of Smap input
- C. Set the compression method of reduce output
- D. Set the compression method of map output
Answer: D
NEW QUESTION 100
In FusionInsight HD, regarding Oozie's job operation commands, which of the following descriptions are correct? (multiple choice)
- A. The kill command can be used on jobs in PREP/SUSPEND/RUNNING status
- B. The submit command can change the status of the job to PREP
- C. The run command can make the job status RUNNING
- D. The start command can make the job in the PREP state become RUNNING
Answer: A,B,C,D
NEW QUESTION 101
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 good dispersion is placed in the first half of Rowkey
- D. The attribute value with high access weight is placed in the second half of Rowkey
Answer: A,C
NEW QUESTION 102
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