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Questions # 16:

Which of the following descriptions about Hive features is incorrect?

Options:
A.

Flexible and convenient ETL

B.

Only supports MapReduce computing engine

C.

Direct access to HDFS files and HBase

D.

Easy to use and easy to program

Expert Solution
Questions # 17:

Regarding the comparison between Hive and traditional data warehouse, which of the following descriptions is wrong?

Options:
A.

Hive metadata storage is independent of data storage, thereby decoupling metadata and data. High flexibility, while traditional data warehouse data application is single, low flexibility

B.

Hive is based on HDFS storage. Theoretically, the storage capacity can be expanded infinitely. The storage capacity of traditional data warehouses will have an upper limit

C.

Since Hive data is stored in HDFS, it can ensure high fault tolerance and high reliability of data

D.

Since Hive is based on a big data platform, query efficiency is faster than traditional data warehouses

Expert Solution
Questions # 18:

Which of the following descriptions about the basic operations of Hive SQL is correct?

Options:
A.

When loading data into Hive, the source data must be a path in HDFS

B.

To create an external table, you must specify location information

C.

Column delimiters can be specified when creating a table

D.

Create an external table using the external keyword. To create a normal table, you need to specify the internal keyword

Expert Solution
Questions # 19:

In YRAN's tag-based scheduling, which of the following options is tagged?

Options:
A.

APPMaster

B.

ResourceManager

C.

Container

D.

NodeManager

Expert Solution
Questions # 20:

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?

Options:
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

Expert Solution
Questions # 21:

What is the physical storage unit of Region in HBasel

Options:
A.

Region

B.

ColumnFamily

C.

olumn

D.

Row

Expert Solution
Questions # 22:

RDD has Transformation and Action operators. Which of the following belongs to the Action operator?

Options:
A.

reduceByKey

B.

filter

C.

map

D.

saveAsTextFile

Expert Solution
Questions # 23:

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

Options:
A.

Election of Master Nodes

B.

Ensure data consistency on each node

C.

Allocate cluster resources

D.

Store server information in the cluster

Expert Solution
Questions # 24:

What is the data scale unit of traditional data processing?

Options:
A.

TB

B.

EB

C.

PB

D.

GB

Expert Solution
Questions # 25:

What is the file format of data storage in HBase?

Options:
A.

HFile

B.

HLog

C.

TextFile

D.

SequenceFile

Expert Solution
Questions # 26:

Which of the following commands can be used to create node data?

Options:
A.

get/node

B.

create /node

C.

set/node data

D.

1s/node

Expert Solution
Questions # 27:

In Fusioninsight HD, if you need to view the user and permission group currently logged in to HBase, what command can be executed in the HBase shell?

Options:
A.

use_permission

B.

whoami

C.

who

D.

get_user

Expert Solution
Questions # 28:

In the YARN service, if you want to set the capacity of the queue QuqueA to 30%, which parameter should be configured?

Options:
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. capacity

D.

YARN.scheduler.capacity.root.QueueA. state

Expert Solution
Questions # 29:

When creating a Loader job, in which of the following steps can the number of Maps be set?

Options:
A.

output

B.

input settings

C.

convert

D.

Basic Information

Expert Solution
Questions # 30:

The following descriptions about Kafkaf are wrong( )

Options:
A.

Used as the basis for activity streams and operational data processing pipelines

B.

Developed by Apache Hadoop and open sourced in 2011

C.

It has the characteristics of information persistence, high throughput, real-time, etC.

D.

Implemented using Scala, Java language

Expert Solution
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