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H13-711 Exam Dumps - HCIA-Big Data V2.0

Question # 4

Which data types are not suitable for Hadoop's HBase?

A.

large file application scenario (positive answer)

B.

Massive Data Application Scenarios

C.

High Throughput Application Scenarios

D.

Semi-structured data application scenarios

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Question # 5

Which of the following HDFS commands can be used to check the integrity of a data block?

A.

hdfs fsck / (correct answer>

B.

hdfs fsck / -delete

C.

hdfs dfsadmin -report

D.

hdfs balancer-threshold 1

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Question # 6

When deploying Fusionlnsight HD, how many Flume server nodes are recommended to be deployed in the same cluster?

A.

1

B.

2

C.

3

D.

4

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Question # 7

Regarding Kerberos deployment, what is the correct description?

A.

Kerberos has only one role

B.

Kerberos service has two instances on the same node

C.

Kerberos service is deployed in active / standby mode

D.

The Kerberos service must be deployed on the same node as the LDAP service

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Question # 8

A Fussinsight Manager is incorrect about the configuration function of the service?

A.

Service level configuration takes effect for all instances

B.

Instance-level configuration takes effect only for this instance

C.

Instance-level configuration also works for other instances

D.

The configuration needs to be restarted after the configuration is saved. The service takes effect

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Question # 9

After a Loader job in Fusioninsight HD is submitted to Yam, the job cannot be stopped manually.

A.

True

B.

False

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Question # 10

During the Fusioninsight HD installation process, which function cannot be performed by performing preinstall?

A.

Modify the 0S configuration to ensure that the 0S meets the installation requirements of Fusioninsight HD

B.

Install Manager

C.

formatted partition

D.

install RPM package missing from OS

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Question # 11

What information is included in a KeyValue format in the HBase data file HFile? (Multiple choices)

A.

Key

B.

Value

C.

TimeStamp

D.

Key Type

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Question # 12

When using Flume to input data, in order to prevent losing data due to restart of the Flume process, which of the following channel types is recommended?

A.

Memory Channel

B.

File Channel

C.

JDBC Channel

D.

HDFS Channel

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Question # 13

In a Fusioninsight Hadoop cluster, if you query df-hT on a node, you can see the following partitions:

/ var / log

/ snzOgData

/ srv / BigData / hadoop / data 5

/ s MBigD at a / solr / solrsen / er3

/ s rv / BigData / d t) data_o m

What is the optimal RAID combination plan for the disks of these partitions?

A.

Raid0 Raidl Raid0 Non-Raid Raidl

B.

Raidl Raidl Non-Raid Non-Raid Raidl

C.

RaidO RaidO Raid0 RaidO RaidO

D.

Non-Raid Non-Raid Non-Raid Non-Raid Raidl

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Question # 14

Are the main features of big data understood and described correctly? "Multiple choices"

A.

many sources, many formats

B.

grows fast and processing speed is fast

C.

has a large amount of storage and a large amount of calculation

D.

Low value density of data

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Question # 15

What parts of data do I need to read to perform HBase read data services? (Multiple choices)

A.

HFile

B.

HLog

C.

MemStore

D.

HDFS

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Question # 16

What are the main features of the YARN answering child scheduler? "Dodie"

A.

Capacity guarantee

B.

Yi Linghua ratio

C.

multiple lease

D.

Dynamically update the configuration file

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Question # 17

RDDs can be generated from Hadoop-compatible file systems. After generation, RDD data can be partially updated by calling RDD operators.

A.

True

B.

wrong

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Question # 18

HBase region in the Hadoop platform is managed by which service process.

A.

HMaster

B.

DataNode

C.

RegionServer

D ZooKeeper

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Question # 19

The Hadoop NameNode is used to store the metadata of the file system.

A.

True

B.

False

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Question # 20

What's wrong about Fusioninsight Manager?

A.

NTP Server / Client is responsible for clock synchronization of the answering nodes in the cluster

B.

Fusioninsight Manager can start and stop HDFS and configure parameters

C.

All maintenance operations of Fusiontnsight Manager can only be completed through Web III. Shell maintenance commands are not provided

D.

Fusioninsight Manager can guide the installation of the cluster, shorten the deployment of the cluster

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Question # 21

The minimum processing unit of HBase in Fusioninsight HD system is Region. Where is the routing information between User Region and RegionSeiver stored?

A.

ZooKeeper

B.

HDFS

C.

Master

D.

meta table

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Question # 22

Spark is based on memory computing. All data during the running of Spark programs can only be stored in memory.

A.

True

B.

False

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Question # 23

Which object cannot Fusioninsight Manager manage?

A.

Spark

B.

Host OS

C.

YARN

D.

HDFS

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Question # 24

In the Fusionlnsight HD cluster planning, is the deployment scenario where the management node, control node, and evidence node are combined into one deployment scenario suitable?

A.

30 nodes or less

B.

Above 100 nodes

C.

100-200 nodes

D.

200 nodes or more

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Question # 25

How many nodes is suitable for Fusioninsight HD Layer 3 networking?

A.

30 knots or less

B.

100 nodes or more

C.

100-200 nodes

D.

200 nodes or more

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Question # 26

Are the following statements about Hadoop's HDFS1S correct? (Multiple choices)

A.

HDFS consists of NameNode. DataNode, Client

B.

The metadata on the HDFS standby NameNode is synchronized by the primary NameNode.

C.

HDFS uses the nearest rack node for the first copy of the data

D.

HDFS is suitable for read once and read multiple times and tasks

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Question # 27

Regarding the basic operation of Hive table creation, what is correct?

A.

When creating an external table, the fog must point to the external key

B.

Once the table is created, the table name can no longer be modified

C.

Once the table is created, you can no longer modify the column names

D.

Once the table is created, no new columns can be added.

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Question # 28

The RowKey division of a bow table of HBase in Fusioninsight HD is split key is 9, E, a, z. How many regions does the table have?

A.

3

B.

4

C.

5

D.

6

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Question # 29

Kafka is a distributed message publish and subscribe system. It only forwards messages and does not save messages.

A.

True

B.

False

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Question # 30

What kind of computing tasks is the Map Reduce component good at?

A.

Iterative calculation

B offline calculation

B.

Real-time interactive computing

C.

Streaming computing

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