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Which of the following options does the main role of Zookeeper in distributed applications not include?

A.

Election of Master Nodes

B.

Ensure data consistency on each node

C.

Allocate cluster resources

D.

Store server information in the cluster

Which of the following options belong to Hive's data storage model?

A.

surface

B.

bucket

C.

database

D.

partition

E.

all of the above

When the number of nodes in the Zookeeper cluster is 5 nodes, how many nodes are the disaster recovery capabilities of the cluster equivalent to?

A.

3

B.

4

C.

6

D.

none of the above

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

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

In an MRS cluster, which of the following components does Spark mainly interact with?

A.

Zookeeper

B.

Yarin

C.

Hive

D.

HDFS

To set the maximum resource usage of QueueA in YARN, which parameter needs to be configured?

A.

yarn.scheduler.capacity.root.QueueA. user-limit-factor

B.

yarn.scheduler.capacity.root.QueueA. minimum-user-limit-percent

C.

yarn.scheduler.capacity.root.QueueA. state

D.

yarn.scheduler.capacity.root.QueueA. maximum-capacity

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

A.

sink

B.

topic

C.

Source

D.

Channel

Which of the following scenarios does Hive not apply to?

A.

Non-real-time analysis. Such as log analysis, statistical analysis

B.

data mining. Such as user behavior analysis, interest analysis, regional display

C.

Data summary. such as clicks per user per day,Click to rank

D.

Real-time online data analysis

How is the HBaseM master elected?

A.

Randomly selected

B.

Adjudicated by RegionServer

C.

Adjudication via Zookeeper

D.

HMaster is a dual-master mode and does not need to be adjudicated

Which of the following descriptions about Kafka partition offset is incorrect?

A.

Consumers track records by (offset, partition, topic)

B.

Uniquely tag a message

C.

offset is a String type string

D.

The position of each message in the file is called offset

As shown in the figure, the following description of the message read by the Kafka message consumer Consumeri is wrong?

A.

The blue in the picture is a topic of Kafkal, which can be understood as a queue, and each grid represents a message.

B.

The messages generated by the producer are placed at the end of the topic one by one.

C.

Consumers read messages sequentially from right to left.

D.

Consumert uses offset to record the position of the read

SoIrCloud mode is cluster mode. In this modeSWhich of the following services does the olr server strongly depend on?

A.

HBase

B.

HDFS

C.

ZooKeeper

D.

YARN

When deploying Fusioninsight HD, how many FlumeServer nodes are recommended to be deployed in the same cluster?

A.

1

B.

2

C.

3

D.

4

Which of the following is not included in the schemai authentication method of Zookeeper?

A.

sasl

B.

auth

C.

digest

D.

world

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