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Huawei H13-711_V3.0 - HCIA-Big Data V3.0

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Total 649 questions

In the era of big data, which of the following challenges are faced by enterprises?

A.

Data is scattered among various departments of the enterprise, and the same data is stored in different formats within each department.

B.

Diversified data structures.

C.

technological advancements of competitors.

D.

Scattered data has problems such as noise, missing, and non-standard storage types, which requires a lot of data preprocessing.

Which of the following conversion rules can be implemented by Loader

A.

Null conversion

B.

splice conversion

C.

long time conversion

D.

Incremental conversion

What data does FusionInsightManager regularly back up?

A.

NameNode

B.

LDAPServer

C.

OMS

D.

DBService

Which of the following measures are used to safeguard the integrity of data

A.

Metadata Reliability Guarantee

B.

Rebuild the replica data of the failed data disk

C.

safe mode

D.

Cluster data balance

YARN manages cluster resources through ResourceManager. What are its main functions?

A.

Cluster resource scheduling

B.

application management

C.

log management

D.

The above statement is not correct

The HDFS data reading process includes the following steps, please choose the correct order. (Drag title) Order: ECADB

A.

After obtaining this input stream, the client calls the read method to read the data. The input stream selects the nearest DataNode to establish a connection and read data.

B.

The client calls close. to close the input stream.

C.

The location where the data block corresponding to this file in NameNodel is obtained by calling NameNode remotely through RPC

D.

If the end of the data block has been reached. Then close the connection with this DataNodel, and then re-find the next data block. until all data is read.

E.

The client calls the open method of the FileSystem instance to obtain the input stream corresponding to the file.

Kafka Cluster Mirroring. Which of the following functions can be achieved by the tool?

A.

Kafka cross-cluster data synchronization scheme

B.

Kafka data backup within a single cluster

C.

Kafkat but intra-cluster data recovery

D.

None of the aboveA. True

What configuration files can the Fusioninsight HD LLD configuration planning tool generate?

A.

Monitoring Alarm Threshold Profiles

B.

Cluster installation template file

C.

Configuration files for HDFS and YARN

D.

Configuration file Check required to execute Precheck Nodes.Config

NodeManager memory andCThe number of PUs is configured by which of the following options?

A.

YARN.scheduler.capacity.root.QueueA. maximum-capacity

B.

YARN.nodemanager.resource.cpu-vcore

C.

YARN.nodemanager.vmem-pmom-ratio

D.

YARN.modemanager.resource.memory-mb

Which of the following functions can the Shell1 script of Loader achieve?

A.

View job status

B.

start job

C.

stop job

D.

Data source query

In Task Scheduling at YRN. oneAppliedMasterapply to? ?After that, the corresponding? ?communication,wantask it to enlightenmove.

A.

TRUE

B.

FALSE

Flumofor data collection. What is the basic unit of data it transmits?

A.

block

B.

event

C.

split

D.

packet

The processing logic of topology is in bolt.

A.

True

B.

False

Spark Streaming has higher real-time performance than Storm.

A.

True

B.

False

The following customson Hivev basicoperatecommandexplainThe correct one?

A.

alter table T1 rerame to T2:/Rename table T1 to T2

B.

firop tab1 e if exists T1.//deletesurfaceT1

C.

create table if not exists T1 1ikeT2.//copyT2 table, including the data in the table, and named T1

D.

rödovetab1e T1where id=, //deleteEligible in the table"id=1” ofdata.