Huawei H13-711-ENU 問題練習

Question No : 1
Which application scenarios is HBase not suitable for?

• A.Require application scenarios with full ACID characteristics
• B.Massive data application scenarios
• C.High throughput application scenario
• D.Semi-structured data application scenario

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Question No : 2
The following statement about ZKFC, which is wrong?

• A.ZKFC (ZKFailoverController) is used as a client of the ZooKeeper cluster to monitor the status information of the NameNode.
• B.The ZKFC process needs to be deployed in the node of the NameNode and the Leader node of the ZooKeeper.
• C.Standby NameNode senses the status of the Active NameNode through ZooKeeper. Once the Active NameNode rock machine,
• D.Standby NameNode will perform the main operation.
• E.HDFS NameNode ZKFC is connected to ZooKeeper, and the host name and other information is saved to ZooKeeper.

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Question No : 3
Huawei has rich experience in big data solutions in many industries such as finance, public security, railway and government affairs.

• A.True
• B.False

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Question No : 4
Which of the following scenarios are not good for Flink components? (Multiple choice)

• A.Batch processing
• B.Iterative calculation
• C.Stream processing
• D.Data storage

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Question No : 5
The memory size allocated by YARN to the Container in the Hadoop system can be set by the parameter yarn.app.mapreduce.am.resource.mb.

• A.True
• B.False

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Question No : 6
The following description of the Flink window, which is wrong? (Multiple choice)

• A.The scrolling windows do not overlap in time.
• B.The scrolling windows overlap in time.
• C.There is an overlap between the time points between the sliding windows.
• D.There is no overlap between the time point between the sliding windows.

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Question No : 7
In the Spark SQL table, there are often many small files (the size is much smaller than the HDFS block size). In this case, Spark will start more Task to process these small files. When there is a Shuffle operation in the SQL logic, will greatly increase the number of hash buckets, which will seriously affect performance.

• A.True
• B.False

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Question No : 8
The () interface in Flink is used for stream data processing, and the () interface is used for batch processing.

• A.Stream API, Batch API
• B.DataStream API, Data Batch API
• C.Data Batch API, DataStream API
• D.Batch API, Stream API

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Question No : 9
ZooKeeper nodes use ACL to control access policies. ACL can be applied to any znode node in the cluster.

• A.True
• B.False

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Question No : 10
Fusionlnsight Manager supports multi-tenant unified management.

• A.True
• B.False

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Question No : 11
When using HBase for data read service in Fusionlnsight HD, you need to connect to HMaster.

• A.True
• B.False

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Question No : 12
After the Loader job is submitted to YARN in Fusionlnsight HD, the job cannot be stopped manually.

• A.True
• B.False

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Question No : 13
The description of HBase Region Split splitting process, which is wrong?

• A.The split process does not really separate the files, just create a reference file.
• B.In order to reduce the size of the data in the Region, Split splits a Region into two Regions.
• C.The table will be suspended duringSplit.
• D.The Region that was split during the split process will suspend the service.

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Question No : 14
What processes are included in the HBase service of Fusionlnsight HD? (Multiple choice)

• A.HMaster
• B.Slave
• C.HRegionServer
• D.Data Node

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Question No : 15
Which of the following description about the reliability of the Fusionlnsight HD system is correct? (Multiple Choice)
A. There are no single points of failure for all components.
B. All management nodes HA.
C. Software and hardware health monitoring.
D. Network plane isolation.

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正解: ABCD