H13-723 by Huawei Actual Free Exam Questions And Answers

Question 1

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. Support REST-based query request

C. WebHCat provides external services based on HTTP and HTTPS protocols

D. You can create tables, query and other operations through WebHCat

Discussion 0

Correct Answer: A Vote an answer

Question 2

HDFS is not suitable for which of the following business scenarios?

A. Large file storage

B. Streaming file storage

C. Large amount of small file storage

D. Mass data storage

Discussion 0

Correct Answer: C Vote an answer

Question 3

Regarding FusionInsight HD's Spark, which of the following programming languages can be used to develop Spark applications? (multiple choice)

A. Python

B. C

C. Java

D. Scala

Discussion 0

Correct Answer: A,C,D Vote an answer

Question 4

In Kafka, which of the following commands can check how many partitions a topic has?

A. kafka-topics.sh --alter

B. kafka-topics.sh --create

C. kafka-topics.sh --list

D. kafka-topics.sh - describe

Discussion 0

Correct Answer: D Vote an answer

Question 5

Regarding the characteristics of the data collected by Flume, which of the following descriptions is correct?

A. Support distributed and streaming collection

B. Use external timing tasks to trigger data collection

C. Parallel collection with MapReduce tasks

D. Only structured data can be collected

Discussion 0

Correct Answer: A Vote an answer

Question 6

As the core object of Spark, which of the following characteristics does RDD have? (multiple choice)

A. Efficient

B. Read only

C. Fault tolerance

D. Partition

Discussion 0

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

Question 7

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 the second half of Rowkey

B. The attribute value with good dispersion is placed in the first half of Rowkey

C. Attribute values with good dispersion are placed in the second half of Rowkey

D. The attribute value with high access weight is placed in front of RowKey

Discussion 0

Correct Answer: B,D Vote an answer

Question 8

In Streaming application development, which interface does Bolt use to send Tuples?

A. execute

B. nextTuple

C. emit

D. open

Discussion 0

Correct Answer: A Vote an answer

Question 9

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 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

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. 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

Discussion 0

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

Question 10

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. Index name

B. The name of the column family to which the index column belongs

C. Index column type

D. Index column

Discussion 0

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

Question 11

In FusionInsight HD, regarding the partition function of Hive, what is wrong in the following description?

A. There can only be one partition field, and multi-level partitions cannot be created

B. The partition field should be defined when the table is created

C. Using partitions can reduce the data scan range of certain queries, thereby improving query efficiency

D. The partition field can be used as the condition of the where clause

Discussion 0

Correct Answer: A Vote an answer

Question 12

In HBase application development, when the Rowkey range and distribution of a table are known, it is recommended to pre-divide regions. After calling the following code (fragment) to pre-divide a table into regions, this table will create several regions.
//Create a table of pre-partitioned regions
byte[][] splits=new byte[4][];
splits[0] = Bytes.toBytes("A");
splits[1] = Bytes.toBytes("H");
splits[2] = Bytes.toBytes("O");
splits[3] = Bytes.toBytes("U");
admin.createTable (htd, splits);

A. 6

B. 4

C. 5

D. 3

Discussion 0

Correct Answer: C Vote an answer

Question 13

Set the data block storage size to 128M. When the HDFS client writes a file, when writing a 100M file, how much storage space is actually occupied?

A. 128M

B. 50M

C. 100M

D. 64M

Discussion 0

Correct Answer: C Vote an answer

Question 14

During the Solr application development of FusionInsight HD products, you can verify the Collection through the Solr Admin UI.
Which of the following statements about Solr Admin UI is correct? (multiple choice)

A. Click Cloud to view the distribution and status of each ShardReplica under each Collection

B. Enter the Core Overview interface of the Shard Replica of a Collection, you can view the actual number of documents, storage size and location information of the Replica index

C. Solr user group, Solr admin role and Super group users can access Solr Admin UI

D. Click Tree under Cloud to view metadata information such as Collections, configuration sets and live_nodes in Solr Cloud

Discussion 0

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

Question 15

For HBase column family, which of the following attributes can be set? (multiple choice)

A. TTL

B. Compression

C. Coprocessor

D. Versions

Discussion 0

Correct Answer: A,B,D Vote an answer

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

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