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Which object cannot be managed by Fusioninsight manager?

A.

Spark

B.

host OS

C.

YARN

D.

HDFS

The Fusioninsight HD cluster planned by a bank has 90 nodes. If three control nodes are planned, it is recommended to plan only one data node in the cluster.

A.

87

B.

85

C.

90

D.

86

What is the resource management framework that comes with Spark?

A.

Standalone

B.

Mesos

C.

YARN

D.

Docker

Regarding DataSet, which of the following statements is incorrect?

A.

A DataSet is a strongly typed collection of domain-specific objects

B.

DataSet can perform most operations without deserialization

C.

DataSet needs to be deserialized to perform operations such as sort, filter, shuffle, etC.

D.

DataSet - highly similar to RDD. Better performance than RDD

Assume that the minimum resource guarantee for each user is set to YARN. scheduler. capacity. root. QueueA. minimum-User-limit-percent=25, then the above statement is wrong

A.

When the 4th user submits a task, each user gets up to 25% of the resources

B.

When the 2nd user submits a task, each user gets up to 50% of the resources

C.

When the 3rd user submits the task, each user gets up to 33.33% of the resources

D.

When the 5th user submits a task, each user gets up to 20% of the resources

The figure below shows the configuration of HDFS tiered storage. If the number of copies of a block is 4. Which of the following statements is wrong?

A.

All 4 blocks will be written to RAM_DISK

B.

If it is a copy other than the first copy that fails to write, try to write to the storage type specified by "Alternative storage policy for copy"

C.

The first block copy will be written to RAM_DISK, the rest of the replicas are written to DISK

D.

If the first block copy is written to RAM_If DISK fails, try to write to the storage type specified by "Alternative Storage Policy"

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

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.

When viewing the partition details of a TopicE of Kafka, which command should be used?

A.

bin/kafka-topiC. sh-create

B.

bin/kafka-topiC. sh -list

C.

bin/kafka-topiC. sh -describe

D.

bin/kafka-topiC. sh -delete

In the Fusioninsight HD system, what is the LDAP data synchronization method?

A.

One-way synchronization

B.

two-way synchronization

C.

Isolate out of sync

D.

Data cross synchronization

In the Fusioninsight product, about the Kafka topic, which of the following descriptions are incorrect?

A.

Each topic can only be divided into one partition (area)

B.

The number of Topic partitions can be configured at creation time

C.

The storage layer of each Partition corresponds to a log file, and the log file records all information data

D.

Each message published to Kafkab has a category, which is called Topic, which can also be understood as a queue for storing messages.

Which nodes are required to communicate with external data sources before and after the Fusioninsight HD Loader job?

A.

Loader service master node

B.

The node on which the YARN service job is running

C.

Both of the first two are required

D.

Neither of the first two are needed

Which of the following descriptions about HBase. Secondary Index is correct

A.

The secondary index associates the column to be searched with the rowkey into an index table

B.

At this point, it is listed as a new rowkey; the original rowkey becomes the value

C.

The secondary index is queried twice

D.

all of the above

Streaming:Event listening is mainly implemented through which of the following services provided by Zookeeper?

A.

Distributed detection mechanism

B.

ACK

C.

Watcher

D.

Checkpoint

Which of the following types of data is not semi-structured data?

A.

HTML

B.

XML

C.

two-dimensional table

D.

JSON