1. (Multiple choice) Hadoop-based open source big data platform mainly provides distributed computing and storage capabilities for data, the following are distributed storage components?

A. MR B. Spark C. HDFS D. HBase

2. (Single Choice)What is the default Block Size of HDFS in the FusionInsight HD system?

A. 32MB B. 64MB C. 128MB D. 256MB

3. (Single Choice) What is the abstraction of YARN resources in a Hadoop system?

A. Memory B. CPU C. Container D. Disk space

4. (Single choice) Spark is implemented in which of the following programming languages?

A. C B. C++ C. JAVA D. Scala

5.(Judgmental) RDDs can be generated from Hadoop-compatible file systems, and the data in the RDD can be partially updated by calling the RDD's operator after generation.

A. True B. False

6.(Judgment Question) In Spark on YARN mode, nodes without a NodeManager cannot start an executor to execute a task.

A. True B. False

7.(Single Choice) The following statements about Kerberos' TGT the following statement is false?

A. TGT is known as Ticket Authorization Service Tickets and is mainly generated by the KDC server .

B. TGT can be used indefinitely after it is generated once.

C. TGT exists on the client either in memory or locally as a file.

D. The main information in a TGT is the current length of time the ticket is valid and the IP of the server that granted the TGT and the name of the client to which it was distributed.

8. (Optional) In a FusionInsight HD system, when a user logs on to a client and requests an application on the server side, the client needs to first request a message from the authentication server to obtain which of the following?

A. TGT B. ST C. PT D. TOKEN

9. Which processes are included in the HBase service of FusionInsight HD?

A. HMaster B. Slave C. RegionServer D. DataNode

10.(Optional) Which service process manages the Region of HBase in the Hadoop platform?

A. HMaster B. DataNode C. RegionServer D. ZooKeeper

11.(Single Choice) The smallest processing unit of HBase in the FusionInsight HD system is the Region, and the User Region and RegionServer are connected to each other. Where is the routing information stored?

A. ZooKeeper B. HDFS C. Master D. meta table

12. (Optional) Which of the following types of data is not semi-structured data?

A. HTML B. XML C. 2D table D. JSON

13.(Single choice) In FusionInsight HD, if you need to view the currently logged in HBase . Users and Privilege Groups, what command can be executed in the HBase shell?

A.user_permission B.whoami C.who D.get_user

14.(Multiple Choice) What are the ways or interfaces provided by Loader to implement job management?

A.Web UI B.Linux command line C.Rest interface D. Java API

15.(Multiple Choice) Which of the following sink types are used to receive data sent from the previous Flume hop when Flume processes are cascaded?

A. avro sink B. thrift sink C. HDFS sink D. Null Sink

16.(Multiple Choice) In SolrCloud mode, which of the following descriptions of Solr-related concepts are correct?

A. A Collection is a logically complete index in a SolrCloud cluster that can be partitioned into one or more Shards that use the same Config Set.

B. A Config Set is a set of configuration files that are necessary for Solr Core to provide a service, and include solrconfig.xml and schema.xml, among others.

C. Shard is a logical slice of Collection, each Shard contains one or more replicas, which are elected to determine which replica is the Leader, and only the Leader replica can proceed to process indexing and querying requests.

D. A replica accepts index and query requests only when it is in the active state.

17. (Judgment) In the FusionInsight HD system, the number of Partitions and the number of replicas must be set when creating a Topic for Kafka, and setting multiple replicas enhances the disaster tolerance of the Kafka service.

A. True B. False

18. (Judgment) Streaming in FusionInsight HD has a weak dependency on the Zookeeper, and even if the Zookeeper fails, Streaming can still provide the service normally.

A. True B. False

19. (Optional) Which of these is not a disk partition of a cluster node in a FusionInsightHD system?

A. OS partition B. Data partition C. Metadata partition D. Management partition

20. (Single choice) What is an incorrect statement about FusionInsight Manager's configuration capabilities for services?

A. Service-level configurations take effect for all instances

B. Instance-level configurations take effect only for this instance

C. Instance-level configurations take effect for other instances as well

D. A restart of the service is required for the configuration to take effect after it has been saved

Answer.

1. cd 2. c 3. c 4. d 5. a 6. a 7. b 8. a 9. ac 10. c 11. d 12. c 13. b 14. abcd 15. bc 16. abd 17. a 18. b 19. d 20. c