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The client writes data to any Zookeeper node. Zookeeper needs to fully synchronize the data to other nodes before returning to the client to write successfully.

A.

True

B.

False

Which of the following query scenarios is more appropriate to use column storage?

A.

Conditional query

B.

Group query

C.

Aggregate query

D.

point query

What physical resources does Redis mainly consume?

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

The following are typical application scenarios of DWS

A.

Enterprise Data Warehouse

B.

Trading System

C.

data mart

D.

CRM/ERP

Which of the following are the functions that Spark can provide?

A.

Distributed memory computing engine

B.

Distributed file system

C.

Unified scheduling of cluster resources

D.

Stream processing capabilities

In the process of using Flume to transmit data, in order to prevent data loss due to the restart of the Flume process. Which of the following Channel types can be used

A.

Memory Channel

B.

JDBC Channel

C.

File Channel

D.

HDES Channel

In Hive, which of the following descriptions about bucketing is correct?

A.

Data can put different data into different buckets according to the way of buckets

B.

Unsortable in bucket

C.

The advantage of bucketing is that it can achieve higher query processing efficiency and make sampling more efficient

D.

You can specify the number of buckets when creating a table

Which of the following options belong to the advantages of HUAWEI CLOUD MRS?

A.

Extensibility

B.

High reliability

C.

high performance

D.

Ease of use

In the processing node Bolt of Streaming. Which of the following operations can be done

A.

join operation

B.

Connect to the database

C.

filter

D.

business processing

Which of the following indicators belong to flume data monitoring?

A.

The amount of data received by the source

B.

The amount of data written by the sink

C.

Number of DataNodes

D.

The amount of cached data in the channel

Which of the following options is an important role for Spark

A.

DateNode

B.

Nodemanager

C.

Driver

D.

ResourceManager

Which components in the Fusioninsight HD platform support table and column encryption?

A.

Flink

B.

HBase

C.

Hive

D.

HDFS

The data node is the working node of HDFS. Which of the following are its functions? (multiple choice)

A.

Responsible for storing and reading data

B.

Data storage and retrieval are performed according to the scheduling of the client or the name node

C.

Records all operations for file creation, deletion, renaming, etC.

D.

Periodically send the namenode a list of its own stored blocks.

The following figure shows the computational model of Structured Streaming. By observation, it can be concluded that the final calculation result of 3 is

A.

Dog 1, owl 1

B.

Cat 2, dog 4, owl 2

C.

Cat 2, dog 3, owl 1

D.

Cat 1, cat 1, dog 2, dog 2, owl 2