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NEW QUESTION 39
In FusionInsight HD, which of the following scenarios does Streaming apply to? (multiple choice)
- A. Real-time access statistics of the website
- B. Traffic flow analysis
- C. Streaming data monitoring
- D. Offline log analysis
Answer: A,B,C
NEW QUESTION 40
If a user wants to develop an application to access the HBase service, he first applies for a machine-to-machine account teste1, and sets the permission to access the HBase service: then download the keytab file of the account and use the account to run the application. Subsequent business requirements for this application require access to the Hive service. After the tested user is granted access to the Hive component, the user's keytab file needs to be re-downloaded.
- A. False
- B. True
Answer: A
NEW QUESTION 41
In FusionInsight HD V100R002C60, regarding the Hive Python interface type, which of the following descriptions is incorrect?
- A. The client must be installed with setuptools, and the version is not lower than 5.0
- B. The hive_python_client script provides the function of directly executing SQL, such as hive_python_client'show tables '
- C. Python secondary development does not support secure clusters
- D. The Python version is required to be no lower than 2.6.6 and no higher than 2.7.0
Answer: C
NEW QUESTION 42
Regarding the file format provided by Hive in the FusionInsight HD system, which is not a columnar file?
- A. TextFiIe
- B. RCFile
- C. Parquet
- D. CRC
Answer: A
NEW QUESTION 43
In FusionInsight HD, regarding the secondary development of Hive UDF, which of the following descriptions is correct? (multiple choice)
- A. Before the user-defined UDF is used, it needs to be created in the Hive system.
- B. In a secure cluster, user-defined UDFs are recommended to be created before each use.
- C. User-defined UDF is not allowed to add information such as summary and status.
- D. User-defined UDF can add deterministic and statefull annotations according to the actual situation.
Answer: A,D
NEW QUESTION 44
A customer has the following scenario: indexing PB-level data requires real-time indexing performance of more than 2MB/s, and supports full-text retrieval, and requires query performance to reach a second-level response.
For the above scenarios, regarding the Solr collection design, which of the following design schemes are reasonable? (multiple choices)
- A. In the configuration set, the DirectoryFactory parameter in the solrconfig.xml file can be set to org.apache.solr.core.NIOFSDirectoryFactory
- B. When creating a Collection, you can set the number of Shards to be an integer multiple of the number of SoIrServer instances to ensure that each SoIrServer instance is negatively balanced as much as possible
- C. It can be used in conjunction with Hbase, set the uniqueKey field and HBase RowKey field to the same value, and use the implicit Router method to make the document evenly distributed to each shard
- D. It can be used in conjunction with HBase. Solr only builds indexes for non-RowKey fields that need to be retrieved. HBase is responsible for storing data in all fields.
Answer: A,B,D
NEW QUESTION 45
Which of the following table types does Hive support? (multiple choice)
- A. Tilt table
- B. Bucket table
- C. Partition table
- D. Partition + bucket table
Answer: A,B,C,D
NEW QUESTION 46
What is the role of the setMapOutputCompressorClass class in the development of MapReduce applications?
- A. Set the delivery method of map output
- B. Set the compression method of Smap input
- C. Set the compression method of reduce output
- D. Set the compression method of map output
Answer: D
NEW QUESTION 47
Which Redis commands are atomic operations?
- A. All of the above
- B. INCR (increase the stored digital value by one)
- C. HINCRBY (add incremental increment to the field value in the hash table key)
- D. LPUSH (push operation on linked list)
Answer: A
NEW QUESTION 48
What methods does FusionInsight HD support to submit Oozie jobs? (multiple choice)
- A. Shell commands
- B. Hue UI
- C. Rest API
- D. Java API
Answer: A,B,C,D
NEW QUESTION 49
In FusionInsight HD, if there are multiple sources in a Flume configuration file, the source names cannot be repeated.
- A. True
- B. False
Answer: A
NEW QUESTION 50
In Spark, which of the following is the operator that takes the intersection of the DataFrame?
- A. intersect (other: Data Fra me): Data Fra me
- B. filter (condifionExpr: String): DataFrame
- C. join (right: DataFrame, join Exprs: Column): DataFrame
- D. dropDuplicates():DataFrame
Answer: A
NEW QUESTION 51
When creating a user through the FusionInsight manager interface, if you want the user to have read and write permissions for all topics, but do not have the permission to create topics, which group of Kafka service should be added?
- A. Kafkaadmin group
- B. Kafkasuperuser group
- C. Kafka group
Answer: B
NEW QUESTION 52
In FusionInsight HD, what are the computing frameworks that can be used in real-time processing scenarios? (multiple choice)
- A. Spark Streaming
- B. MapReduoe
- C. Streaming
- D. HDFS
Answer: A,C
NEW QUESTION 53
Hive service and HBase service are deployed on a FusionInsight cluster, and two apps (applications) are deployed on Tomcat. One app is to access the HBase service, and the other app is to access the Hive service. Regarding authentication, which methods are as follows Is it right? (multiple choice)
- A. Just do authentication on the app that accesses the HBase service
- B. Deploy these two apps to two independent Tomcats, and then authenticate each
- C. Combine these two apps into one and do authentication on the new app
- D. Just do authentication on the app that accesses the Hive service.
Answer: B,C
NEW QUESTION 54
In Streaming application development, which interface does Bolt use to send Tuples?
- A. nextTuple
- B. open
- C. execute
- D. emit
Answer: C
NEW QUESTION 55
Which of the following measures can improve the query performance of HBase? (multiple choice)
- A. Pre-divide regions to make regions evenly distributed and improve concurrency
- 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. Query frequent attributes are placed in front of rowkey
Answer: A,B,C,D
NEW QUESTION 56
In Spark, assuming that lines is a DStream object, the filter statement can filter out 80% of the data. Which statement is correct for the following two statements:
X: lines.filter(...).groupByKey(...)
Y: lines.groupByKey(...).filter(...)
- A. X has higher performance than Y
- B. It is impossible to determine the performance difference between X and Y
- C. X has lower performance than Y
- D. X and Y have the same performance
Answer: A
NEW QUESTION 57
When a task is submitted to the YARN cluster, which of the following options will generate a job id for the task?
- A. ResourceManager
- B. NodeManager
- C. AppMaster
- D. container
Answer: A
NEW QUESTION 58
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