When planning and deploying a Fusionlnsight cluster, it is recommended that the management node be best deployed( ), the control node needs to be deployed at least( )Piece,Data nodes need to be deployed at least( )Piece.

• A.1.2, 2
• B.2, 3, 3
• C.1, 3, 2
• D.2, 3, 1

Comment: *

Name: *

Email: *

Verification: *

Regarding the Flink barrier, which of the following is incorrect?

• A.Barrier is the core of Flink snapshot
• B.When the barrier is inserted, the data flow will be temporarily blocked
• C.The barrier is periodically inserted into the data stream and flows with it as part of the data stream
• D.A barrier separates the data of the snapshot of this cycle from the data of the next cycle of snapshots

Comment: *

Name: *

Email: *

Verification: *

In the Loader of Fusioninsight HD, one connector can only be assigned to one joB.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

Watermark is a mechanism proposed by Apache Flink to process EventTime window calculation, which is essentially a timestamp.

• A.False
• B.True

Comment: *

Name: *

Email: *

Verification: *

Which component controls the primary and secondary arbitration of NameNodef in HDFS

• A.HDFS Client
• B.ResourceManager
• C.NodeManager
• D.ZooKeeper Failover Controller

Comment: *

Name: *

Email: *

Verification: *