Online Questions - Valid Practice To your H13-723-ENU Exam (Updated 155 Questions)
Practice To H13-723-ENU - Remarkable Practice On your HCIP-Big Data Developer Exam
NEW QUESTION 66
For Spark Streaming applications, in a JVM, only one StreamingContext can be active at the same time.
- A. True
- B. False
Answer: A
NEW QUESTION 67
In FusionInsigt HD, which of the following components can be used for data collection? (multiple choice)
- A. Loader
- B. MapReduoe
- C. HBase
- D. Flume
Answer: A,D
NEW QUESTION 68
In Spark, assuming that lines is a DStream object, which of the following statements can periodically count the number of words on this stream?
- A. Iines.flatMap(_.split (" " )).flatMap(word => (word, 1)).groupByKey(_ +_).print()
- B. Iines.flatMap(_.split (" " )).map(word => (word,word.Iength())).reduceByKey (_ +_).print()
- C. Iines.flatMap(_.split (" " )).map(word => (word, 1)).reduce(_ +_).print()
- D. Iines.fIatMap(_.spIit (" " )).map(word => (word, 1)).reduceByKey(_ +_).print()
Answer: D
NEW QUESTION 69
HBase filters can set column names or column values as filter conditions, and support multiple filters to be used together.
- A. True
- B. False
Answer: A
NEW QUESTION 70
In FusionInsight HD, use the Streaming command line to submit the om.huawei.examole.WordCount task in example.jar. The task name is wcTest. Which of the following commands is correct?
- A. storm jar example .jar wcTest WordCount
- B. storm jar example .jar wcTest om.huawei.example.WordCount
- C. storm jar example .jar om.huawei.example.WordCount wcTest
- D. storm jar example.jar WordCount wcTest
Answer: C
NEW QUESTION 71
HDFS is not suitable for which of the following business scenarios?
- A. Mass data storage
- B. Large amount of small file storage
- C. Large file storage
- D. Streaming file storage
Answer: B
NEW QUESTION 72
In FusionInsight HD, if there are multiple sources in a Flume configuration file, the source names cannot be repeated.
- A. True
- B. False
Answer: A
NEW QUESTION 73
In Kafka, which statement about Consumer is correct? (multiple choice)
- A. Topic needs to be specified when Consumer consumes data
- B. When multiple Consumers are configured with the same group.id, the data consumed by these Consumers will not be repeated
- C. The new ConsumerAPI consumption data does not need to specify the ZooKeeper address
- D. Consumer mainly conducts data consumption
Answer: A,B,C,D
NEW QUESTION 74
In the FusionInsight HD system, in the Solr example project solr-example\conf\solr-example.properties, the values of ZK_URL and ZOOKEEPER_DEFAULT_SERVER_PRINCIPAL can be obtained from which of the following options?
- A. Obtain from the Solr Admin UI interface
- B. Obtained from the FusionInsight Manager Solr service configuration interface
- C. In solr-example\conf\solr-example.properties, these two parameters are already included by default
Answer: A
NEW QUESTION 75
In the FusionInsight HD system, with regard to the Hive JDBC interface type, which of the following descriptions is correct?
- A. Hive is different from traditional databases, so the connection established by JDBC does not need to be closed.
- B. In a network isolation environment, ZooKeeper's IP can be configured as either a service IP or a management IP.
- C. When using JDBC to submit SQL, you can add a semicolon ";" after the SQL statement.
- D. In a secure cluster environment, before establishing a connection with Hive, you need to log in using a unified authentication method.
Answer: D
NEW QUESTION 76
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 77
When writing MapReduce applications, which two interfaces usually need developers to implement?
- A. map and combine
- B. combine and sort
- C. reduce and combine
- D. map and reduce
Answer: D
NEW QUESTION 78
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 XML
- C. Support CSV, JSON and HTML
Answer: C
NEW QUESTION 79
On the client of FusionInsight HD, execute the kinit {account} command to get what item of KDC?
- A. TGT
- B. jaas.conf
- C. Krb5.conf
- D. ST
Answer: A
NEW QUESTION 80
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 81
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 82
In which of the following is the MapReduce task finally executed?
- A. ResourceManager
- B. NodeManager
- C. container
- D. AppMaster
Answer: C
NEW QUESTION 83
When the HDFS client writes files with N copies, which of the following is correct about the writing process? (multiple choice)
- A. Each DataNode can store at most 1 copy.
- B. Support multiple users to write to the same file at the same time.
- C. The first copy of the data block is prioritized on the node where the client writing the data block is located.
- D. The copied file blocks are all stored on the same rack by default.
Answer: A,C
NEW QUESTION 84
In Kafka, which of the following commands can check how many partitions a topic has?
- A. kafka-topics.sh --create
- B. kafka-topics.sh --list
- C. kafka-topics.sh --alter
- D. kafka-topics.sh - describe
Answer: D
NEW QUESTION 85
Regarding FusionInsight HD's Spark, which of the following programming languages can be used to develop Spark applications? (multiple choice)
- A. Scala
- B. Python
- C. Java
- D. C
Answer: A,B,C
NEW QUESTION 86
In FusionInsight HD, where can I view the running results of the MapReduce application?
- A. FusionInsight Manager web interface
- B. Solr web interface
- C. Loader web interface
- D. Yarn web interface
Answer: D
NEW QUESTION 87
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