[2021] Valid H13-711_V3.0 test answers & Huawei H13-711_V3.0 exam pdf
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NEW QUESTION 149
Which is the correct description of the Loader job in Fusionlnsight HD?
- A. After the Loader submits the job to Yam for execution, if the Loader service is abnormal at this time, the job execution fails.
- B. After the execution of Loader job fails, the dam data will be generated, which needs to be manually cleared by the user
- C. After Loader submits a job to Yam for execution, no other jobs can be submitted until the job is completed.
- D. After Loader submits the job to Yam for execution, if a Mapper task fails to execute, it can automatically retry
Answer: D
NEW QUESTION 150
In the era of big data, which of the following challenges companies face? (Multiple choice)
- A. Scattered data has problems such as noise, missing, irregular storage type, etc., which requires a lot of data preprocessing.
- B. The data structure is diversified.
- C. The data is scattered among various departments of the enterprise, and the same data is inconsistent in the internal storage format of each department.
- D. The technological advancement of competitors.
Answer: A,B,C,D
NEW QUESTION 151
Spark divides the stages according to the dependencies of the RDD. The scheduler starts from the end of the DAG graph and traverses the entire dependency chain in reverse. It will disconnect when it encounters a narrow dependency, and add it to the current stage when it encounters a wide dependency.
- A. True
- B. False
Answer: B
NEW QUESTION 152
Planning Fusionlnsight HD clusters, if customers have no performance requirements for functional testing, under the case of cost savings, they can deploy management nodes, control nodes, and data nodes in one. How many nodes are required at least?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 153
In the Fusioninsight product, which of the following statement about the Kafka component is correct? (Multiple choice)
- A. When creating a topic, the number of replicas must not be greater than the number of currently surviving Broker instances, otherwise the topic creation will fail
- B. Kafka will store metadata information on Zookeeper
- C. After Kafka is installed, the sensitive data storage directory can no longer be configured
- D. When Kafka's Producer sends a message, it can specify which Consumer consumes the message
Answer: A,B,C,D
NEW QUESTION 154
Which of the following descriptions of Zookeeper features are wrong?
- A. Message update can only succeed or fail, there is no intermediate state
- B. If a message is received by a server with more than radius, it will be able to successfully write to the disk
- C. The number of Zookeeper nodes must be an odd number
- D. The updating snapshot sent by the client will be applied in the order in which they were sent
Answer: C
NEW QUESTION 155
Which of the following commands delete files?
- A. dfs -rm
- B. dfs -Is
- C. dfs -del
- D. dfs -clear
Answer: A
NEW QUESTION 156
Kafka, as a distributed messaging system, supports online and offline message processing, and provides javaAPI for the docking of other components. In the Fusioninsight solution, Kafka belongs to the Fusionlnsight HD module.
- A. True
- B. False
Answer: A
NEW QUESTION 157
The open source big data platform based on Hadoop mainly provides distributed computing and storage capabilities for data. Which of the following are distributed storage components? (Multiple choice)
- A. HDFS
- B. HBase
- C. Spark
- D. MR
Answer: A,B
NEW QUESTION 158
Which of the following HDFS commands can be used to check the integrity of data blocks?
- A. HDFS balancer -threshold 1
- B. HDFS fsck -delete
- C. HDFS dfsadmin -report
- D. HDFS fsck /
Answer: D
NEW QUESTION 159
Which of the following statement about ZKFC is incorrect?
- A. ZKFC (ZKFailoverController) is used as a Zookeeper cluster client to monitor the status information of the NameNode
- B. The ZKFC of HDFS NameNode connects to Zookeeper and saves the host name and other information in Zookeeper
- C. The ZKFC process needs to be deployed in the NameNode node and the Zookeeper Leader node
- D. The Standby NameNode perceives the status of the Active NameNode through Zookeeper. Once the Active NameNode goes down, the Standby NameNode will perform the upgrade operation
Answer: C
NEW QUESTION 160
The overall process of Kafka Producer reading data is that the Producer connects to any surviving Broker, requests the leader metadata information of the specified topic and partition, and then directly connects to the corresponding Broker to publish the data.
- A. True
- B. False
Answer: A
NEW QUESTION 161
The most basic unit of distributed storage in HBase is Region.
- A. True
- B. False
Answer: A
NEW QUESTION 162
Which way is correct to load data into Hive table? (Multiple choice)
- A. Insert the result set of other tables into the Hive table.
- B. Load the files on HDFS into the Hive table.
- C. Hive supports the method of insert into a single record, so you can insert a single record directly on the command line
- D. Load the file in the local path directly into the Hive table.
Answer: A,B,D
NEW QUESTION 163
SoIrCloud mode is a cluster mode. In this mode, the Solr server strongly depends on which of the following services?
- A. HDFS
- B. HBase
- C. ZooKeeper
- D. YARN
Answer: C
NEW QUESTION 164
Regarding the Kafka in Fusioninsight HD products, which of the following is incorrect?
- A. Kafka's server can generate messages
- B. Consumer serves as the client role of Kafka for message consumption
- C. The number of instances deployed by Kafka must not be less than 2
- D. Kafka strongly relies on Zookeeper
Answer: C
NEW QUESTION 165
In creating a Loader job, which of the following steps can be used to set the filter type?
- A. Input settings
- B. Basic information
- C. Conversion
- D. Output
Answer: A
NEW QUESTION 166
Which of the following are enterprise-level big data application scenarios? (Multiple choice)
- A. Customer analysis
- B. Internal operation management
- C. Supply chain management
- D. Marketing analysis
Answer: A,B,C,D
NEW QUESTION 167
In Fusionlnsight HD cluster planning, what kind of scenario is suitable for the integrated deployment of management node & control node & data node?
- A. More than 100 nodes
- B. More than 200 nodes
- C. Below 30 nodes
- D. 100-200 nodes
Answer: C
NEW QUESTION 168
A KeyValue format in the HBase data file HFile contains Key, Value, TimeStamp, KeyType, etc.
- A. True
- B. False
Answer: A
NEW QUESTION 169
In the process of data transmission by Flume, after sink takes the data and writes it to the destination, events will be deleted from the channel.
- A. True
- B. False
Answer: A
NEW QUESTION 170
Which of the following aspects reflect Fusioninsight HD data high reliability? (Multiple choice)
- A. Disk hot swap
- B. Third-party backup system integration
- C. Cross-data center disaster recovery
- D. Critical data power failure protection
Answer: A,B,C,D
NEW QUESTION 171
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