A. False

B. True

A. Retrieval based on score

B. Based on full-text search

C. Term-Based Search

D. Retrieval based on metadata

A. Supervise the life cycle management of the Container

B. Unified management and allocation of all resources in the cluster

C. Monitor the resource usage (memory, CPU, etc.) of each Container

D. Manage logs and ancillary services used by different applications

A. Create ordinary tables by default

B. When deleting an external table, only delete the data of the external table without deleting the metadata

C. The essence of the external table is to associate the file path already existing on HDFS with the table

D. When deleting a common table, metadata and data are deleted at the same time

A. The topology is too complex or the concurrency is too large, causing the worker startup time to be too long, exceeding the waiting time of the Supervisor

B. The slots resources of the Supervisor are exhausted. After the topology is submitted, there are no slots to start the worker process.

C. Supervisor is a component that receives data in topology and then performs processing

D. There is a logic error in the topology business, and it cannot run normally after submission

A. HDFS

B. YARN

C. Kafka

D. Zookeeper

A. Check the running log of the main nimbus to determine whether the nimbus server is abnormal

B. Check the Supervisor operation log to determine whether the Supervisor is abnormal

C. Check the worker running log

D. Check the client exception stack to determine whether the client is using the problem

A. Tumbling windows overlap in time

B. There is overlap between time points between sliding windows

C. There is no overlap of time points between sliding windows

D. Tumbling windows are non-overlapping in time

A. A multi-level tenant model that matches the organizational structure of the enterprise. Different departments correspond to different tenants, and tenants can be dynamically added or deleted as needed.

B. Visual multi-level tenant management, which matches the organizational structure of the enterprise and simplifies system resource allocation and management

C. Isolation of tenant resources based on container mechanism to protect tenant SLA

D. One-stop management of tenant resources, computing resources (CPU/memory/IO), storage resources (HDFS), service resources (HBase...)

A. Network plane isolation to avoid management and business bandwidth preemption and mutual interference

B. Avoid high load on the service plane from blocking the cluster management channel

C. Fusioninsight supports dividing the network into three levels: the cluster service plane, the cluster management plane, and the maintenance network outside the cluster, which are physically isolated from each other.

D. Prevent external attackers from invading actual business data through management channels

A. False

B. True

A. HDFS

B. Kafka

C. zookeeper

D. Yarn

A. High fault tolerance

B. High scalability

C. High reliability

D. high performance

A. YARN.scheduler.capacity.root.QueueA.capacity

B. YARN.scheduler.capacity.root.QueueA.state

C. YARN.scheduler.capacity.root.QueueA.minimum-user-limit-percent

D. YARN.scheduler.capacity.root.Queueuser-limit-factor