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

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Total 649 questions

What is wrong about the architecture description of Hive in Fusionlnsight HD?

A.

As long as one HiveServer is unavailable, the entire HiveEcluster is unavailable

B.

HiveServert is responsible for accepting client requests, parsing, executing HQL commands and returning query results

C.

MetaStore is used to provide raw data services and depends onDBServer

D.

At the same time, only one HiveServer is in Active state, and the other is in Standby state

The correct installation process for installing Fusioninsight HD is

A.

Install Manager->Execute preinstall->LLD tool for configuration->Install cluster->Check after installation->Configure after installation

B.

LLD tool to configure -> execute preinstall-> install Managers-> install cluster-> post-installation check-> post-installation configuration

C.

Install Manager->LLD tool for configuration->execute preinstall->install cluster->post-installation check->post-installation configuration

D.

LLD tool to configure -> execute preinstalls-> install cluster-> install Manager-> post-installation check-> post-installation configuration

Which of the following statements about ZKFC is wrong?

A.

ZKFC (ZKFailoverController) is used as a Zookeeper cluster client to monitor the status information of NameNodel

B.

The ZKFC process needs to be deployed in NameNodel's node and Zookeeper's Leader node

C.

Standby NameNodej perceives the status of Active NameNodel through Zookeeper. Once the Active NameNode is down, the Standby NameNode will perform the main upgrade operation.

D.

The ZKFC of HDFS NameNodel connects to Zookeeper, and saves the host name and other information in Zookeeper

Huawei Fusioninsight HD is the first big data platform in China that complies with national financial and other garbage protection. What are the following aspects of its security?

A.

system security

B.

Authority authentication

C.

Data Security

D.

everything aboveA. True

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

Which module is responsible for Fusioninsight Manager user data storage?

A.

CAS

B.

AOS

C.

Kerberos

D.

LDAP

In Hive, which of the following statements about partitions is incorrect

A.

There can be further partitions or buckets under the partition

B.

The data table can be partitioned by the value of a field

C.

Each partition is a directory

D.

The number of partitions is fixed

In order to improve the fault tolerance of Kafka, Kafka supports the replication strategy of partition. Which of the following descriptions about Leader partition and Follower partition is wrong?

A.

It is impossible for each node of a kafka cluster to be l with each othereader and flower

B.

If the leader fails, other followers will take over (become the new leader)

C.

Because the leader server carries all the request pressure. Therefore, from the overall consideration of the cluster, kafka will distribute the leader evenly on each instance to ensure the overall performance is stable

D.

Kafka needs to select a leader for partition replication, and the leader is responsible for reading and writing partitionsD. operation, other replica nodes are only responsible for data synchronization

Which way is incorrect to load data into Hive table?

A.

Load the file of the local path directly into the Hive table

B.

Load the files on HDFS into the Hive table

C.

Hive supports insert into! Single record method, so you can insert a single record directly on the command line

D.

Insert result sets from other tables into Hive tables

Which object cannot be managed by Fusioninsight manager?

A.

Spark

B.

host OS

C.

YARN

D.

HDFS

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

Kafka cluster during runtime,Directly depend on the following components?

A.

Zookeeper

B.

HDFS

C.

Spark

D.

HBase

Which statement is correct about the client uploading files to the HDF$ file system in the Hadoop system?

A.

The file data of the client is passed to the DataNode through the NameNode

B.

Allows the client to divide the file into multiple blocks, according to DaThe address information of taNodel is entered into each DataNode in order

C.

The client writes the entire file to each DataNodel in sequence according to the address information of the DataNode, and then divides the file into multiple blos by the DataNode)ck

D.

The client only uploads data to one DataNode, and then the NameNodet is responsible for block replication

In the replica placement strategy of HDFS, what is the distance between different servers in the same rack?

A.

1

B.

2

C.

3

D.

4

During the data collection process of F1ume, the following options can filter and modify the data:

A.

Channel

B.

Channel Selector

C.

Interceptor

D.

Sink