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What application scenarios is HBase not suitable for?

A.

High throughput application scenarios

B.

Application scenarios requiring full ACD characteristics

C.

Semi-structured data application scenarios

D.

Mass data (TB, PB) application scenarios

How many shards does an index library of ElasticSearchl have by default?

A.

5

B.

6

C.

3

D.

4

In the operation process of F1ink, the role responsible for applying for resources is

A.

ResourceManager

B.

JobManager

C.

Client

D.

TaskManager

F1ume supports monitoring and transmission of newly added files in the directory, enabling data transmission. Which type of source is described above?

A.

spooling directory source

B.

http source

C.

exec source

D.

syslog source

In many small file scenarios, Spark will start many tasks. When there is a Shuffle operation in the SQL logic, the number of hash buckets will be greatly increased, which will seriously affect the performance. In Fusioninsight, scenarios for small files usually use the( )Operator to merge partitioni generated by small files in Tabler, reduce the number of partitions, avoid generating too many hash buckets during shuffle, and improve performance?

A.

group by

B.

coalosce

C.

onnect

D.

join

Regarding the alarm about insufficient disk capacity of Kafkat, which of the following analysis is incorrect for the possible reasons?

A.

The disk configuration used to store Kafka data (such as the number of disks, size, etC. ) cannot meet the current business data stream declaration, resulting in the disk usage reaching the upper limit

B.

The data storage time is configured too long, and the accumulated data reaches the upper limit of the disk usage.

C.

Unreasonable business planning results in uneven data distribution and makes some disks reach the upper limit of usage

D.

Caused by the failure of the rocker node

When the Loader of MRS creates a job, what is the role of the connector?

A.

Configure how jobs connect to external data sources

B.

Configure how jobs connect to internal data sources

C.

Provide optimization parameters to improve data import and export performance

D.

Make sure there are conversion steps

Which of the following factors contributed to the vigorous development of the era of big data?

A.

Reduced hardware costs and increased network bandwidth

B.

The rise of cloud computing

C.

The popularization of smart terminals and the improvement of social demands

D.

all of the aboveA. True

RowKey of a table in HBase:Divide the SplitKey into 9, e, a, z. How many Regions does this table have?

A.

3

B.

4

C.

5

D.

6

In the Fusioninsight Manager interface, which of the following options is not included in the operation of the loader?

A.

Switch the active and standby Loader nodes

B.

Start the loader instance

C.

Configure loader parameters

D.

View loader service status

The following are the characteristics of Huawei Kunpeng processor

A.

High-performance computing, ARM-compatible high-performance Kunpeng processors and x86-architecture servers and solutions

B.

Safe and reliable, creating high quality as stable as Mount Tai

C.

Open ecology, support mainstream software and hardware in the industry, and work with developers, partners and industrial organizations to create a new base for intelligent computing

D.

everything abovecorrect

Regarding the relationship between Hive and other components of Hadoop. Which of the following descriptions is wrong?

A.

Hive finally stores data in HDFS

B.

Hive is a data warehouse tool for the Hadoop platform

C.

HQL can execute tasks through MapReduce

D.

Hive has a strong dependence on HBase

Which two roles are responsible for the active and standby status management of HDFS NameNode nodes and the merging of metadata files?

A.

ZKFC and standby NameNode

B.

Primary NameNode and Standby NameNode

C.

ZKFC and the main NameNode

D.

Primary NameNode and JournalNode

Which module is responsible for Fusioninsight Manager user data storage?

A.

CAS

B.

AOS

C.

Kerberos

D.

LDAP

Which of the supervisor descriptions of Fusioninsight HD Streaming is correct?

A.

Supervisor is responsible for resource allocation and task scheduling

B.

Supervisort is responsible for accepting tasks assigned by Nimbus, starting and stopping Worker processes that belong to its own management

C.

Supervisor is a process that runs specific processing logic

D.

Supervisor is a component that receives data in Topology and then performs processing