H13-723-ENU Dumps - Grab Out For [NEW-2022] Huawei Exam
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NEW QUESTION 11
In FusionInsight HD, assuming a topology, spout concurrency is set to 3, bolt1 concurrency is 2, bolt2 concurrency is 3, and the number of workers is 2, then how are bolt1's executors distributed among workers?
- A. One of the two workers is distributed to two
- B. Two workers each distribute one
- C. Two workers are distributed
- D. There is no fixed pattern
Answer: B
NEW QUESTION 12
There are scenarios where 500G of new data is generated by the online system every day, and these data need to be statistically summarized in dimensions such as days, weeks, and months.
Which table is suitable for Hive processing?
- A. Bucket table, according to talent
- B. Tilt table, select the date in the tilt field, and the tilt value is random
- C. Partition table, partition by day
- D. Partition + bucket table, partitioned by time, 2560 buckets per partition
Answer: C
NEW QUESTION 13
In the FusionInsight HD system, what interface types does Hive support? (multiple choice)
- A. Python interface
- B. ODBC interface
- C. JDBC interface
- D. Ruby interface
Answer: A,B,C
NEW QUESTION 14
What distributed computing framework does the FusionInsigt HD big data platform provide? (multiple choice)
- A. MapReduce
- B. HBase
- C. Spark
- D. Streaming
Answer: A,C,D
NEW QUESTION 15
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 16
An application needs to interact with two FusionInsight clusters at the same time: it needs to access both the HBase service of cluster 1 and the Hive service of cluster 2;
So which of the following operations are necessary? (multiple choice)
- A. The accounts created by option A and option B must belong to the supergroup group
- B. Create an account with the same name in option A on cluster 2, and set this account to access the Hive service of this cluster
- C. Cluster 1 and cluster 2 complete mutual trust operation
- D. Create the account required for this application on cluster 1, and set this account to access the HBase service of the cluster
Answer: B,C,D
NEW QUESTION 17
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 18
In FusionInsight HD, what are the data distribution methods belonging to Streaming? (multiple choice)
- A. Direct Grouping
- B. Local Grouping
- C. Field Grouping
- D. Shuffle Grouping
Answer: A,B,C,D
NEW QUESTION 19
When the HDFS client writes files to HDFS with N copies, if one of the copies fails to write, all copies will return the write failure.
- A. True
- B. False
Answer: B
NEW QUESTION 20
When Flume writes into HDFS, what are the file generation methods? (multiple choice)
- A. 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
- B. 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
- C. 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
- D. According to the source file name, directly generate the file
Answer: A,B,C,D
NEW QUESTION 21
In Kafka, Consumer can support both offline and online message consumption, but the consumption of data is sequential consumption.
- A. True
- B. False
Answer: A
NEW QUESTION 22
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 23
Spark Streaming can receive data from Kafka and perform calculations. The calculation results can only be stored in HDFS and cannot be written back to Kafka.
- A. True
- B. False
Answer: B
NEW QUESTION 24
In FusionInsight HD, Oozie supports HDFS Action.
- A. True
- B. False
Answer: A
NEW QUESTION 25
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 26
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 27
Regarding the file format provided by Hive in the FusionInsight HD system, which is not a columnar file?
- A. CRC
- B. Parquet
- C. TextFiIe
- D. RCFile
Answer: C
NEW QUESTION 28
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 29
In the Fusioninsight HD product, what is wrong about the Kafka secure and non-secure port description?
(Note: The old API refers to the old Producer API and the old Consumer API. Among them, the old Consumer API: refers to the interface defined in kafka.consumer.ConsumerConnector; the old Producer API: refers to the interface defined in kafka.producer.Producer.)
- A. Kafka cluster security access port defaults to 21007, non-secure access port defaults to 21005.
- B. The premise for the old API to access a topic through port 21005 is that the server parameter allow.everyone.if.no.acl.found is set to true, and the topic does not have ACL attributes set
- C. The old API only supports access to port 21005; the new API is compatible with access to non-secure port 21005 and secure port 21007.
- D. For topics with ACL set, you can use the old API to connect to port 21005 for access.
Answer: D
NEW QUESTION 30
What are the several parameter setting methods for Spark applications? (multiple choices)
- A. In the application code, set through the SparkConf object
- B. When submitting the application, set it through --conf
- C. Configure in the application configuration file spark-defaults.conf
- D. In the application code, set by the setProperty method of SparkContext
Answer: A,B,C
NEW QUESTION 31
In FusionInsight HD, which method of the OozieClient class will be called by the JAVA API of the Oozie client when running tasks?
- A. submit
- B. suspend
- C. getJobInfo
- D. run
Answer: D
NEW QUESTION 32
In FusionInsight HD, which of the following parameters of the Hive client are used to control reduce concurrency? (multiple choice)
- A. hive.exec.reducers.bytes.per.reducer
- B. hive.exec-ducers.max
- C. hive.exec.max.dynamic.partitions
- D. hive.exec.max.dynamic.partitions.pernode
Answer: A,B
NEW QUESTION 33
HDFS adopts a file access model of "write once, read many times". Therefore, it is recommended that after a file is created, written, and closed, it should not be modified.
- A. True
- B. False
Answer: A
NEW QUESTION 34
For the HBase component of the FusionInsight HD platform, what attributes of the secondary index need to be defined when adding a secondary index? (multiple choice)
- A. The name of the column family to which the index column belongs
- B. Index column
- C. Index name
- D. Index column type
Answer: A,B,C,D
NEW QUESTION 35
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. Producer is responsible for producing data, Consumer is responsible for consuming data, Socket connection needs to be established between Producer and Consumer
- C. Producer can produce data by connecting to any normal Broker instance
- D. As a message producer, Producer can directly write data to ZooKeeper
Answer: A,B,D
NEW QUESTION 36
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