Use Real H13-723-ENU Dumps - Huawei Correct Answers updated on 2022
Huawei Other Certification H13-723-ENU Exam Practice Dumps
NEW QUESTION 42
Which of the following measures can improve the query performance of HBase? (multiple choice)
- A. Query frequent attributes are placed in front of rowkey
- B. The data read at the same time are stored in the same cell
- C. Use secondary indexes to adapt to more query scenarios
- D. Pre-divide regions to make regions evenly distributed and improve concurrency
Answer: A,B,C,D
NEW QUESTION 43
When indexing in Solr, which of the following code snippets can significantly improve indexing performance? (multiple choice)
- A. SolrlnputDocument doc = new SolrlnputDocument(); doc.addField ("id", i.toString()); doc.addField ("name", "Zhang San" + i); doc.addField ("features", "test" + ); doc.addField ("price", (float) i * 1.01); cloudSolrClient.add (doc); cloudSolrClient.commit();
- B. lbClient.setRequestWriter (new BinaryRequestWriter());
- C. if (updateRequest.getDocuments().size() >= 1000) { cloudSolrClient.request (updateRequest, collName); updateRequest.clear(); }
- D. if (updateRequest.getDocumentsMap().size() >= 10000) { cloudSolrClient.request (updateRequest, collName); updateRequest.clear(); }
Answer: B,D
NEW QUESTION 44
For an application running on the MapReduce platform, where will the jar package that the application depends on be placed?
- A. DB
- B. HDFS
- C. HBASE
- D. HIVE
Answer: B
NEW QUESTION 45
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. Two workers each distribute one
- B. There is no fixed pattern
- C. Two workers are distributed
- D. One of the two workers is distributed to two
Answer: A
NEW QUESTION 46
In FusionInsight HD, what are the computing frameworks that can be used in real-time processing scenarios? (multiple choice)
- A. Spark Streaming
- B. HDFS
- C. MapReduoe
- D. Streaming
Answer: A,D
NEW QUESTION 47
Which role in Yarn manages the resources (CPU/Memory) of a single node?
- A. Data Node
- B. ResourceManager
- C. NodeManager
- D. NameNode
Answer: C
NEW QUESTION 48
In FusionInsight HD's Hive, the user-defined UDF can have the same name as the Hive built-in UDF. In this case, the user-defined UDF will be used.
- A. False
- B. True
Answer: A
NEW QUESTION 49
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. False
- B. True
Answer: B
NEW QUESTION 50
In a MapReduce application, the output of the map function is processed by the MapReduce framework and sent to the reduce function. This process is based on key-value pairs for sorting and grouping.
- A. False
- B. True
Answer: B
NEW QUESTION 51
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. False
- B. True
Answer: A
NEW QUESTION 52
In Streaming application development, which interface does Bolt use to send Tuples?
- A. open
- B. execute
- C. nextTuple
- D. emit
Answer: B
NEW QUESTION 53
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
Answer: B
NEW QUESTION 54
When developing applications in the FusionInsight HD security version, the keytab file can be used for Kerberos security authentication.
- A. False
- B. True
Answer: B
NEW QUESTION 55
In Kafka, which of the following commands can check how many partitions a topic has?
- A. kafka-topics.sh - describe
- B. kafka-topics.sh --create
- C. kafka-topics.sh --list
- D. kafka-topics.sh --alter
Answer: A
NEW QUESTION 56
For HBase column family, which of the following attributes can be set? (multiple choice)
- A. Versions
- B. Compression
- C. TTL
- D. Coprocessor
Answer: A,B,C
NEW QUESTION 57
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 channle to source; (2) Sink gets data from source
- C. (1) Data from source to channel; (2) Sink gets data from channel
- D. (1) Data from channle to source; (2) Sink gets data from source
Answer: C
NEW QUESTION 58
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. The uniqueKey field must be sorted
- B. When querying, the start parameter cannot be included in the request
- 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. There will be nextCursorMark in the return result of Solr, use this value as oursorMark in the next call
- E. The query field must be sorted
Answer: A,B,C,D
NEW QUESTION 59
Regarding the characteristics of Redis, which of the following descriptions is correct? (multiple choice)
- A. Support SQL query interface
- B. Support data persistence
- C. Low latency
- D. Rich data structure
Answer: B,C,D
NEW QUESTION 60
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. Partition table, partition by day
- B. Tilt table, select the date in the tilt field, and the tilt value is random
- C. Bucket table, according to talent
- D. Partition + bucket table, partitioned by time, 2560 buckets per partition
Answer: A
NEW QUESTION 61
In the FusionInsight HD system, with regard to the Hive JDBC interface type, which of the following descriptions is correct?
- A. When using JDBC to submit SQL, you can add a semicolon ";" after the SQL statement.
- B. In a secure cluster environment, before establishing a connection with Hive, you need to log in using a unified authentication method.
- C. Hive is different from traditional databases, so the connection established by JDBC does not need to be closed.
- D. In a network isolation environment, ZooKeeper's IP can be configured as either a service IP or a management IP.
Answer: B
NEW QUESTION 62
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. False
- B. True
Answer: B
NEW QUESTION 63
When writing MapReduce applications, which two interfaces usually need developers to implement?
- A. combine and sort
- B. reduce and combine
- C. map and reduce
- D. map and combine
Answer: C
NEW QUESTION 64
When adding a RegionServer host to an HBase cluster, you must stop the original cluster first, because HBase does not support dynamic expansion.
- A. False
- B. True
Answer: A
NEW QUESTION 65
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, JSON and XML
- B. Support CSV, JSON and HTML
- C. Support CSV and JSON
Answer: B
NEW QUESTION 66
In FusionInsight HD, which components provide external SQL or SQL-like capabilities? (multiple choice)
- A. Spark
- B. HBase
- C. Hive
- D. Redis
Answer: A,C
NEW QUESTION 67
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