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Huawei HCIA-Big Data(Huawei Certified ICT Associate-Big Data) Sample Questions:
1. Which of the following descriptions about Kafka partition offset is wrong?
A) offset is a string of type String
B) The position of each message in the file is called offset (offset)
C) Uniquely mark a message
D) Consumers track records through (offset, partition, topic)
2. In Hadoop, if yarn.scheduler.capacity.root.QueueA.minimum-user-limit-percent is set to 50, which of the following statements is wrong?
A) If there are already 2 user tasks running in QueueA, the task submitted by the third user needs to wait for the release of resources
B) A user submitting a task can use 100% of QueueA's resources
C) Each user in QueueA can only get up to 50% of the resources
D) QueueA must guarantee that each user gets at least 50% of the resources
3. Which of the following scenarios is Flume suitable for data collection? (Multiple choice)
A) Log collection generated by the application system
B) Local file data collection
C) Collect data from data sources such as Thrift, Avro, Syslog, Kafka, etc.
D) Real-time data collection of large volumes of data
4. The data node is the working node of HDFS. What are its functions described below? (Multiple choice)
A) Store and retrieve data according to the scheduling of the client or the name node
B) Records all operations on file creation, deletion, renaming, etc.
C) Periodically send the name node a list of the blocks it stores.
D) Responsible for data storage and reading
5. What is the meaning of this command "ALTER TABLEemployee1ADDcolumns (columnlstring);" in Hive?
A) Modify the file format
B) Drop table
C) Create table
D) Add columns
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: A,B,C | Question # 4 Answer: A,C,D | Question # 5 Answer: D |
By Jeffrey
