HCIA-Big Data(Huawei Certified ICT Associate-Big Data)

Question 1

If HDFS is deployed with a single name node, what limitations may exist? (Multiple choices)

A. The throughput of the entire distributed file system is limited by the throughput of a single name node

B. Once the only-name node fails, the entire cluster will be unavailable

C. It will affect the function realization of the upper layer components based on HDFS

D. The number of objects (files, blocks) that the name node can hold will be limited by the size of the memory space

Correct Answer: A,B,D

Question 2

As shown in the figure, which of the following description about the Kafka message consumer reading the message is wrong?

A. The messages generated by the producer are placed at the end of the topic one by one.

B. The blue in the picture is a topic of Kafka, which can be understood as a queue, and each grid represents a message.

C. Consumer uses offset to record the read position

D. Consumers read messages sequentially from right to left.

Correct Answer: D

Question 3

In the Fusioninsight cluster networking design, Layer 2 networking refers to Layer 2 switching within the cluster, and the cluster nodes are in a subnet, which is applicable to cluster scenarios with less than 200 nodes.

A. True

B. False

Correct Answer: A

Question 4

Which of the following factors have contributed to the vigorous development of the big data era?

A. The popularity of smart terminals and the improvement of social needs

B. Reduction of hardware cost and improvement of network bandwidth

C. All of the above are correct

D. The rise of cloud computing

Correct Answer: C

Question 5

What data types of application scenarios are HBase of Hadoop not suitable for?

A. Mass data application scenarios

B. High throughput application scenarios

C. Large file application scenarios

D. Semi-structured data application scenarios

Correct Answer: C

Question 6

What is the purpose of the HBase cluster regularly executing Compaction? (Multiple choice)

A. Improve data reading performance

B. Improve data writing ability

C. Reduce the number of files under the same ColumnFamily in the same Region

D. Reduce the number of files in the same Region

Correct Answer: A,B,C

Question 7

Which of the following descriptions about Hive features is wrong?

A. Only supports MapReduce computing engine

B. Can directly access HDFS files and HBase

C. Flexible and convenient ETL

D. Easy to use and easy to program

Correct Answer: A

Question 8

Fusioninsight Manger supports external REST interface, SNMP interface, and SYSLOG interface.

A. True

B. False

Correct Answer: A

Question 9

Which of the following are the RESTful request methods of ElasticSearch? (Multiple choice)

A. Delete

B. Update

C. Post

D. Get

Correct Answer: A,C,D

Question 10

Which of the following statements about the interaction between Flink and other components is correct? (Multiple choice)

A. Flink reads and writes data in the HDFS file system

B. The operation of Flink tasks depends on YARN for resource scheduling management

C. Flink can send received components to Kafka

D. The implementation of Flink's checkpoint depends on Zookeeper

Correct Answer: A,B,C,D

Question 11

What is the index name of ElasticSearch?

A. doc

B. logstash-2020.01.17

C. ddcvc

D. 3sDqsm8Bu-kTplz0jqhL

Correct Answer: B

Question 12

The overall process of kafka Consumer writing data is that the Consumer connects to the Leader Broker where the specified Topic Partition is located, and uses it to actively obtain messages from Kafka.

A. True

B. False

Correct Answer: A

Question 13

When the Fusioninsight HD cluster has a three-layer network, it is recommended to install the management nodes, control nodes, and data nodes in different network segments to improve reliability.

A. True

B. False

Correct Answer: A

Question 14

In the Hadoop system, if the backup factor of the HDFS file system is 3, then each time MapReduce runs the Task, it must transfer the file segments to be processed from 3 machines with copies.

A. True

B. False

Correct Answer: B

Question 15

The following figure shows the label storage strategy of HDFS. Observe the following figure, which data nodes will the HBase data be stored on? (Multiple choice)

A. DataNode B

B. DataNode A

C. DataNode F

D. DataNode E

Correct Answer: A,B

Huawei HCIA-Big Data(Huawei Certified ICT Associate-Big Data) - H13-711-ENU Exam Practice Test

Latest Update

Useful Links

Contact Us