Huawei H13-711_V3.0-ENU Exam Info and Free Practice Test ExamcollectionPass [Q290-Q305] : Free Exam Dumps Collection : http://free.examcollectionpass.com

NEW QUESTION 290
Which of the following belongs to the shufle mechanism in the MapReduce process?

partition

sort/merge

copy

ccombine

NEW QUESTION 291
In order to ensure the reliability of the snapshot storage of streaming applications, where are the snapshots mainly stored?

In the memory of JobManager

In a highly reliable stand-alone database

In the local file system

In HDFS

NEW QUESTION 292
The following customson Hivev basicoperatecommandexplainThe correct one?

alter table T1 rerame to T2:/Rename table T1 to T2

firop tab1 e if exists T1.//deletesurfaceT1

create table if not exists T1 1ikeT2.//copyT2 table, including the data in the table, and named T1

rodovetab1e T1where id=, //deleteEligible in the table”id=1″ ofdata.

NEW QUESTION 293
What is the module used to manage the active and standby states of the Loader Server process in Loader?

ResourcesManager

HAManager

Job Manager

Job Scheduler

NEW QUESTION 294
The following description about the flink window is wrong

Rolling windows are overlapping in time

Rolling windows are non-overlapping in time

There is no overlap of time points between sliding windows

Time points overlap between sliding windows

NEW QUESTION 295
Spark and Hadoop are not suitable for iterative calculation computing.

True

False

NEW QUESTION 296
From the point of view of the life cycle, what stages does data mainly go through?

data collection

data storage

data management

data analysis

data presentation

NEW QUESTION 297
Which of the following statements about Zookeeper’s Leader election is correct? (Multiple choice)

When the number of instances n is an odd number, assuming n=2x+1, x+1 votes are required to become the leader node

When Zookeeper elects a leader, more than half of the votes are required

When the number of instances is 8, 5 votes are required to become the leader node, and the disaster tolerance is 4

When the number of instances n is an odd number, assuming n=2x+1, x votes are required to become the leader node

NEW QUESTION 298
Which of the following options does the main role of Zookeeper in distributed applications not include?

Election of Master Nodes

Ensure data consistency on each node

Allocate cluster resources

Store server information in the cluster

NEW QUESTION 299
Which of the following is correct about the LdapServer organization model? (Multiple choice)

No specific objects can be defined under the organization unit.

Each node in the LDAPServer directory tree is called an entry, and has its own unique distinguished name DN (Distinguished Name).

The root of the LDAPServer directory tree generally defines the domain name DC (Domain Component).

LDAPServer directory information is organized and stored based on a tree structure.

NEW QUESTION 300
Which service process manages the Region of HBasel?

DataNode

ZooKeeper

HMaster

HRegionServer

NEW QUESTION 301
This command in Hive “ALTER TABLEemployeelADDcolumns(columnlstring);”What does it mean?

delete table

add column

create table

Modify file format

NEW QUESTION 302
Which of the following commands download directories/files from HDFS to local?

dfs -cat

dfs -mkdir

dfs -get

dfs -put

NEW QUESTION 303
SELECT a salary,b adiress FROM employee a JoiNsELECT adress FROM Employee info where provine =’zhejiang) b NO ananme=B. name: “What types of operations are included?

create table

Import Data

subquery

J0IN query

NEW QUESTION 304
HBasetable design, column families andRowKeyIt is an important part of table design. Which of the following options is not suitableDoRowKey?

identity number

username

handmachine number

userID

NEW QUESTION 305
“Group by” in Hive refers to dividing each data set into several small data sets through certain rules, and then performing data grouping processing for several small data sets.

True

False