[Oct 15, 2021] H13-723-ENU Dumps Full Questions - Exam Study Guide
Huawei Other Certification Free Certification Exam Material from DumpsMaterials with 155 Questions
NEW QUESTION 70
When the cluster is normal, the Redis client initiates a get call, and there are () message interactions between the client and the server?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 71
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 72
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 73
In Spark, which of the following is the operator that takes the intersection of the DataFrame?
- A. intersect (other: Data Fra me): Data Fra me
- B. filter (condifionExpr: String): DataFrame
- C. join (right: DataFrame, join Exprs: Column): DataFrame
- D. dropDuplicates():DataFrame
Answer: A
NEW QUESTION 74
Which of the following scenarios is not suitable for Redis? (multiple choice)
- A. Get the latest N data: for example, get the latest 10 comments on a Weibo
- B. A message queue application that is consumed by multiple consumers at the same time and guarantees that the message is successfully consumed by all subscribers (subscription-notification)
- C. Complex transaction operations
- D. Counter application: for example, counting the number of people logged in to a certain website
Answer: B,C
NEW QUESTION 75
Which distributed computing frameworks can the Hive component of FusionInsigt HD run on? (multiple choice)
- A. HDFS
- B. Streaming
- C. MapReduoe
- D. Spark
Answer: C,D
NEW QUESTION 76
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. Give the user account global read permission
- B. Grant the user account Table1 and Tablet2 read and write permissions
- C. Grant the user account Namespace1 read and write permissions
- D. Grant the user account Namespace1 and Namespace2 read and write permissions
Answer: B,D
NEW QUESTION 77
Which of the following is correct about the HDFS client's file reading process? (multiple choice)
- A. 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.
- B. Support multiple clients to read the same file data from the DataNode at the same time.
- C. Download data from the nearest DataNode first.
- D. The file data is first returned from the DataNode to the NameNode, and then sent from the NameNode to the client.
Answer: A,B,C
NEW QUESTION 78
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 79
In FusionInsight HD, which of the following parameters of the Hive client are used to control reduce concurrency? (multiple choice)
- A. hive.exec-ducers.max
- B. hive.exec.max.dynamic.partitions.pernode
- C. hive.exec.max.dynamic.partitions
- D. hive.exec.reducers.bytes.per.reducer
Answer: A,D
NEW QUESTION 80
Regarding the file format provided by Hive in the FusionInsight HD system, which is not a columnar file?
- A. TextFiIe
- B. RCFile
- C. Parquet
- D. CRC
Answer: A
NEW QUESTION 81
A customer has the following scenario: indexing PB-level data requires real-time indexing performance of more than 2MB/s, and supports full-text retrieval, and requires query performance to reach a second-level response.
For the above scenarios, regarding the Solr collection design, which of the following design schemes are reasonable? (multiple choices)
- A. In the configuration set, the DirectoryFactory parameter in the solrconfig.xml file can be set to org.apache.solr.core.NIOFSDirectoryFactory
- B. When creating a Collection, you can set the number of Shards to be an integer multiple of the number of SoIrServer instances to ensure that each SoIrServer instance is negatively balanced as much as possible
- C. It can be used in conjunction with Hbase, set the uniqueKey field and HBase RowKey field to the same value, and use the implicit Router method to make the document evenly distributed to each shard
- D. It can be used in conjunction with HBase. Solr only builds indexes for non-RowKey fields that need to be retrieved. HBase is responsible for storing data in all fields.
Answer: A,B,D
NEW QUESTION 82
What distributed computing framework does the FusionInsigt HD big data platform provide? (multiple choice)
- A. MapReduce
- B. Streaming
- C. Spark
- D. HBase
Answer: A,B,C
NEW QUESTION 83
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 84
When the HBase application is running, the application can write data while creating a table.
- A. False
- B. True
Answer: A
NEW QUESTION 85
In FusionInsight HD, regarding Hive's data loading function (importing data through Hive's LOAD command), what is wrong in the following description?
- A. It can be directly loaded to the hive table from the local hard disk of the node where HiveServer is located
- B. It can be directly loaded to the hive table from the local hard disk of the node where the client is located
- C. It can be loaded directly to the hive table from HDFS
- D. Hive's data loading process will not parse the specific file content, mainly the process of file transfer
Answer: B
NEW QUESTION 86
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 87
Regarding the disaster tolerance of Streaming, which of the following statements is correct? (multiple choice)
- A. After Nimbus fails, the standby Nimbus will automatically take over, without affecting the running business.
- B. When a node fails, tasks on that node will be reassigned to other normal nodes without manual intervention.
- C. After the Supervisor process exits, it can be automatically recognized and pulled up by Nimbus without affecting the running business.
- D. Worker can be automatically pulled up by Supervisor after abnormal exit without manual intervention.
Answer: A,B,C,D
NEW QUESTION 88
In FusionInsight HD, for the creation and read-write permissions of various resources in Solr, which of the following statements is wrong?
- A. Solr user group users can create a configuration set and specify the configuration set when creating a Collection
- B. Users of the Solr user group can create Collection
- C. Collection creator, role with read and write access to the collection, and Solr admin role can update the collection
- D. Only the collection creator and Solr admin roles can delete a collection
Answer: A
NEW QUESTION 89
Spark Streaming, as a stream processing engine for micro-batch processing, converts the data of each time slice into a partition in an RDD for calculation.
- A. True
- B. False
Answer: A
NEW QUESTION 90
Regarding the characteristics of the data collected by Flume, which of the following descriptions is correct?
- A. Parallel collection with MapReduce tasks
- B. Support distributed and streaming collection
- C. Only structured data can be collected
- D. Use external timing tasks to trigger data collection
Answer: B
NEW QUESTION 91
In FusionInsight HD V100R002C60, regarding the Hive Python interface type, which of the following descriptions is incorrect?
- A. The client must be installed with setuptools, and the version is not lower than 5.0
- B. The hive_python_client script provides the function of directly executing SQL, such as hive_python_client'show tables '
- C. Python secondary development does not support secure clusters
- D. The Python version is required to be no lower than 2.6.6 and no higher than 2.7.0
Answer: C
NEW QUESTION 92
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