H13-723 by Huawei Actual Free Exam Q&As

Question 1

When HDFS is running, the NameNode will load all the metadata of the file system from the disk to the memory. Therefore, the total number of files that the file system can store is limited by the memory capacity of the NameNode.

A. False B. True

Discussion 0

Correct Answer: B Vote an answer

Question 2

Regarding the Hive service of the FusionInsight HD platform and its WebHCat development interface, which of the following descriptions is incorrect?

A. The data format returned by WebHCat is XML B. You can create tables, query and other operations through WebHCat C. WebHCat provides external services based on HTTP and HTTPS protocols D. Support REST-based query request

Discussion 0

Correct Answer: A Vote an answer

Question 3

Which of the following is not a feature of MapReduce?

A. Good scalability B. High fault tolerance C. Easy to program D. Real-time calculation

Discussion 0

Correct Answer: D Vote an answer

Question 4

When the cluster is normal, the Redis client initiates a get call, and there are () message interactions between the client and the server?

A. 3 B. 4 C. 2 D. 1

Discussion 0

Correct Answer: D Vote an answer

Question 5

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. Use Hue's file browser to check whether the desired file is generated in the HDFS specified directory C. View program running results through Hue's workflow dashboard D. Oozie's own web interface can also view job execution results

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question 6

In which of the following is the MapReduce task finally executed?

A. NodeManager B. container C. AppMaster D. ResourceManager

Discussion 0

Correct Answer: B Vote an answer

Question 7

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. False B. True

Discussion 0

Correct Answer: B Vote an answer

Question 8

In the Solr application query scenario, when the query results are paged in depth, the cursor needs to be used to page in depth. Which of the following is correct about the cursor? (multiple choice)

A. There will be nextCursorMark in the return result of Solr, use this value as oursorMark in the next call B. The query field must be sorted C. In the first query request, you need to specify the query parameters, the operation method is as follows: solrQuery.set (CursorMarkParams.CURSOR_MARK_PARAM, CursorMarkParams.CURSOR_MARK_START); D. When querying, the start parameter cannot be included in the request E. The uniqueKey field must be sorted

Discussion 0

Correct Answer: A,C,D,E Vote an answer

Question 9

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. 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 B. In the configuration set, the DirectoryFactory parameter in the solrconfig.xml file can be set to org.apache.solr.core.NIOFSDirectoryFactory C. 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. D. 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

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 10

In FusionInsight HD, when using SparkSQL, which of the following methods (or tools) can be used to execute SQL statements? (multiple choice)

A. JDBC B. spark-beeline C. spark-sql

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 11

In FusionInsight HD, regarding the secondary development of Hive UDF, which of the following descriptions is correct? (multiple choice)

A. User-defined UDF is not allowed to add information such as summary and status. B. In a secure cluster, user-defined UDFs are recommended to be created before each use. C. User-defined UDF can add deterministic and statefull annotations according to the actual situation. D. Before the user-defined UDF is used, it needs to be created in the Hive system.

Discussion 0

Correct Answer: C,D Vote an answer

Question 12

Which of the following is correct about the HDFS client's file reading process? (multiple choice)

A. Support multiple clients to read the same file data from the DataNode at the same time. 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. 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.

Discussion 0

Correct Answer: A,B,C Vote an answer

Question 13

In FusionInsigt HD, the user wants to query the contents of a certain HBase table through the HBase shell operation. In this scenario, it is recommended that the administrator assign a machine-to-machine account to the user.

A. False B. True

Discussion 0

Correct Answer: A Vote an answer

Question 14

In FusionInsight HD, which parts of a complete Streaming CQL application include at least? (multiple choice)

A. Create an input stream B. Business operation statements (such as SELECT, INSERT, JION, etc.) C. Create an output stream D. Application submission statement

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Huawei HCIP-Big Data Developer V1.0 - H13-723 Exam Practice Test