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Viewing questions 46-60 out of questions
Questions # 46:

Hardware failure is considered to be the norm, in order to solve this problem.HDFS has designed a copy mechanism. By default, a file, HDFS will save( )share?

Options:
A.

1

B.

2

C.

3

D.

4

Expert Solution
Questions # 47:

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

Options:
A.

ResourceManager

B.

JobManager

C.

Client

D.

TaskManager

Expert Solution
Questions # 48:

In the Fusioninsight HD system, which component does the flume data flow not need to pass through in the node?

Options:
A.

sink

B.

topic

C.

Source

D.

Channel

Expert Solution
Questions # 49:

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

Options:
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

Expert Solution
Questions # 50:

Which of the following statements about ZKFC is wrong?

Options:
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

Expert Solution
Questions # 51:

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?

Options:
A.

system security

B.

Authority authentication

C.

Data Security

D.

everything aboveA. True

Expert Solution
Questions # 52:

In the task scheduling process of YARN, which of the following is the task that ApplicationMastert is responsible for?

Options:
A.

Apply for and receive resources

B.

Set up the running environment for the task

C.

Allocate Container

D.

Start a Map or Reduce task

Expert Solution
Questions # 53:

What is the index name of ElasticSearch?

Options:
A.

ddcvc

B.

doc

C.

logstash-2020.01.17

D.

3sDqsm8Bu-kTplzOjqhL

Expert Solution
Questions # 54:

The description of HBase's Region Split splitting process is incorrect( )

Options:
A.

The table will be suspended during Spliti

B.

Split splits a Region into two Regions in order to reduce the data size in Regiont

C.

The Region that is split during the Spliti process will suspend the service

D.

The Spliti process does not actually split the file, it just creates the reference file

Expert Solution
Questions # 55:

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

Options:
A.

ZKFC and standby NameNode

B.

Primary NameNode and Standby NameNode

C.

ZKFC and the main NameNode

D.

Primary NameNode and JournalNode

Expert Solution
Questions # 56:

In the Fusioninsight HD system, which of the following methods cannot view the execution result of the Loader job?

Options:
A.

Richard Suga via YARN tasks

B.

Check through the Loader UI interface

C.

View through the alarm of Managerb

D.

View through NodeManageri

Expert Solution
Questions # 57:

Which of the following descriptions about the key features of F1ink is incorrect?

Options:
A.

SparkStreaming - lower latency compared to Flink

B.

The Flink stream processing engine can provide functions to support both stream processing and batch processing applications

C.

Flink has higher throughput compared to Streaming in Fusionlnght HD

D.

Checkpoint implements Flink's fault tolerance

Expert Solution
Questions # 58:

How many blocks are saved in HDFS by default in the FusionlnsightHD system?

Options:
A.

3

B.

2

C.

1

D.

uncertain

Expert Solution
Questions # 59:

Which of the following descriptions about Hive log collection on the Fusioninsight Manager interface is incorrect?

Options:
A.

You can specify a specific user for log collection, for example, only download logs generated by UserA.

B.

You can specify a time period for log collection, for example, only collect logs from 2016-1-1 to 2016-1-10.

C.

You can specify an instance for log collection, for example, specify to collect metstore logs.

D.

The node IP can be specified for log collection, for example, only the logs of a certain IP can be downloaded.

Expert Solution
Questions # 60:

Which of the following statements about Flink barriers is wrong

Options:
A.

Barriers are periodically inserted into the data flow and flow with it as part of the data flow

B.

Barriers are at the heart of Flink snapshots

C.

A barrier separates the snapshot data of the current cycle from the snapshot data of the next cycle

D.

When the barrier is inserted, it will temporarily block the data flow

Expert Solution
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