Page 1 out of 43. Viewing questions 1-15 out of 649
Question 1
According to the way of data acquisition in Flue, Source can be divided into driven Sourcet and( )Source.
Answer:
polling
User Votes:
Discussions
0/ 1000
Question 2
A telecommunications companyplanopenexhibitionBigdatabusiness,target businesshavecustomer grouping,calendarHistorical bill analysis, real-time call charge analysis and other services. Which of the following options is the most appropriate in terms of functionality and cost to meet business needs?
A. Deploy Soark separately
B. Deploy Map Rabace
C. Deploy Storm
D. Deploy MapReduce with Stare
Answer:
A
User Votes:
A
50%
B
50%
C
50%
D
50%
Discussions
0/ 1000
Question 3
Which of the following options is correct for the description of Compactiong?
A. There are two types of Minor and Major
B. Compation reduces the number of HFile files by merging files CCompation reduces the number of HFile files by eliminating expired data files
D. Minor trigger frequency is higher than Major
Answer:
A
User Votes:
A
50%
B
50%
D
50%
Discussions
0/ 1000
Question 4
DataSet from Spark2.0Officially enabled, it has the characteristics of both DataFrame and RDD, and RDD is no longer used.
A. TRUE
B. FALSE
Answer:
B
User Votes:
A
50%
B
50%
Discussions
0/ 1000
Question 5
The following aboutHiveComponent capabilities in the architecture. Which is the correct description?
A. ThriftServer for thriftcatchmouth, as JDBCservices and willHive and other applicationsintegrated
B. Compiler pressAccording tomissionaccording toDependent relationship is executed separatelyMap/Raduce task
C. Executor is responsible for editingTranslate voQLandwillwhich translates into a series of mutualrelyofMap/ReduceTask D. Ooptimizer is an optimizer, divided into logicalJiyouoptimizer and physical optimizer.HiveQLGenerated execution planMapRadceTaskEnterrow optimization
Answer:
A, B, C, D
User Votes:
A
50%
B
50%
C
50%
Discussions
0/ 1000
Question 6
Which of the following descriptions about Hive are correct?
A. supportTez, Spark and other computing engines
B. Can query and manage petabytes of distributed data
C. E for dataTL process automation
D. Direct access to HDFS files and HBase
Answer:
A, B, C, D
User Votes:
A
50%
B
50%
C
50%
D
50%
Discussions
0/ 1000
Question 7
Hive comparisonAtWhat are the advantages of a traditional data warehouse?
A. Data is stored in HDFS. High reliability and high fault tolerance
B. Integrate a complete set of mature reporting solutions, which can be more convenient for data analysis
C. sooEfficient lead processing
D. Less hardware dependent, adaptableordinarythe machine
Answer:
A, D
User Votes:
A
50%
B
50%
C
50%
D
50%
Discussions
0/ 1000
Question 8
About HDFSThe function of the NameNode, which one of the following descriptions is wrong?
A. for storing metadata
B. Save the mapping relationship between file blocks and DataNodes
C. MaintenanceThe mapping relationship between Block ID and DataNode local file
D. Store file content
Answer:
C, D
User Votes:
A
50%
B
50%
C
50%
D
50%
Discussions
0/ 1000
Question 9
AboutHDFSdataFinishIntegrity guarantee, which of the following mechanisms isMistakeof?
A. SectionPoint higher performance DataNodemore data will be stored
B. The log mechanism is used to operate the metadata, and the metadata is stored on the active and standby NanoNodes.
C. The snapshot mechanism implements the file systemas usualSee the snapshot mechanism to ensure that data can be recovered in time when misoperation occurs
D. DataNode to NameNode periodic reportFailTask,NameNodeinitiateviceThis rebuild action to restore lostcopy
Answer:
A
User Votes:
A
50%
B
50%
C
50%
D
50%
Discussions
0/ 1000
Question 10
In big data computing tasks, aboutI0Which of the following is an incorrect description of an intensive task?
A. CHigh PU consumption
B. I0During intensive task execution, most of the time is spent in I0deal with
C. By improving network transmission efficiency and read and write efficiency, performance can be greatly improved
D. The more tasks, the more efficient the CPU
Answer:
A
User Votes:
A
50%
B
50%
C
50%
D
50%
Discussions
0/ 1000
Question 11
Redis multi-server nodedeploy, the client sends a requestbeggingtake officemeaning? ?,if? ?check itself is not key placementnode, thenwill requestto itshe?.
A. TRUE B.FALSE
Answer:
B
User Votes:
A
50%
Discussions
0/ 1000
Question 12
What is the module used to manage the active and standby states of the Loader Server process in Loader?
A. ResourcesManager
B. HAManager
C. Job Manager
D. Job Scheduler
Answer:
B
User Votes:
A
50%
B
50%
C
50%
D
50%
Discussions
0/ 1000
Question 13
In the MRS interface, Loader can specify a variety of different data sources, configuration data cleaning and conversion steps, and configure cluster storage systems, etC. .
A. TRUE
B. FALSE
Answer:
A
User Votes:
A
50%
B
50%
Discussions
0/ 1000
Question 14
In the MRS interface, Loader can specify a variety of different data sources, configuration data cleaning and conversion steps, configure cluster storage systems, etC. .
A. TRUE
B. FALSE
Answer:
A
User Votes:
A
50%
B
50%
Discussions
0/ 1000
Question 15
ElWhat processing capabilities does asticSearch have for structured, semi-structured, and unstructured data?
A. to enterA series of operations such as line cleaning, word segmentation, and establishment of an inverted index
B. Provides the ability to search full text, conditions can include words or phrases
C. The written data can be checked in real timeSow
D. numberOptional rewrite when data is writtendeleteand compression function