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

YarnWhen doing resource scheduling, maptaak and reduceTask are run in( )middle.

Fusioninsight tool is a set of health detection tools provided for technical support engineers and maintenance engineers. It can check the health status of cluster-related nodes and services, discover potential problems in the cluster in advance, and generate health check reports. It is convenient for technical support engineers and maintenance engineers to quickly understand the health status of the system.

LdapServerff? ?(group) is to unify usersgroup managementreason. likefruituserAdd to? ?middle.? ?middle? ?record.

Redis supports multiple databases.

Spark on YARN-clienti is suitable for production environment because it can see the output of APP faster.

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

As an authentication server center, Kerberos1 can provide unified authentication services to all services in the cluster and secondary development applications of customers.

Hive comparisonAtWhat are the advantages of a traditional data warehouse?

Which of the following reasons may be the cause of the failure of the Loader job execution?

In the HDFS mechanism, NameNodet is responsible for managing metadata. Each read request on the Clienty side needs to read metadata information from the metadata disk of NameNode, so as to obtain the location of the read file in DataNodel.

When importing data into a Hive table, the validity of the data will not be checked, but only when the data is read.

When the Fusioninsight HD cluster is deployed in a three-layer network, it is recommended that the management node, control node, and data node be installed in different network segments to improve reliability.

What is the default resource scheduler for queues in YARN?

When a certainRegion EerverAfter the failure,HWasterWhich of the following options must be followed to recover old data?