Convenient and fast refund procedures

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High passing rate, high hit rate

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Huawei HCIA-Big Data(Huawei Certified ICT Associate-Big Data) Sample Questions:

1. The driver in Spark on YARN mode can only run on the client.

A) True
B) False

2. Which languages supported by the Flink stream data processing interface Datastream API include? (Multiple choice)

A) Python
B) Java
C) C language
D) Scala

3. Which of the following statements about ZKFC is wrong?

A) The ZKFC of HDFS NameNode connects to Zookeeper, and saves information such as the host name in Zookeeper
B) The Standby NameNode perceives the status of the Active NameNode through Zookeeper. Once the Active NameNode goes down, the Standby NameNode will perform the master promotion operation
C) The ZKFC process needs to be deployed in the NameNode node and Zookeeper's Leader node
D) ZKFC (ZKFailoverController) is used as a client of Zookeeper cluster to monitor the status information of NameNode

4. Which of the following statements about Kafka Partition are correct? (Multiple choice)

A) Each Partition is an ordered and immutable message queue
B) The number of Partitions determines the maximum number of concurrent consumers in each consumer group
C) Each Partition corresponds to a log file at the storage level
D) Introduce the Partition mechanism to ensure the high throughput of Kafka

5. Which of the following are extensions of ElasticSearch? (Multiple choice)

A) head
B) hadoop
C) IKAnalyzer
D) bigdesk

Solutions: