最新なAlibaba Cloud ACA-BigData1問題集（77題）、真実試験の問題を全部にカバー！

質問 1：
In MaxCompute, you can use Tunnel command line for data upload and download. Which of the following description of Tunnel command is NOT correct:
Score 2
A. Resume: If an error occurs due to the network or the Tunnel service, you can resume transmission of the file or directory after interruption.
B. Upload: Supports file or directory (level-one) uploading. Data can only be uploaded to a single table or table partition each time.
C. Download: You can only download data to a single file. Only data in one table or partition can be downloaded to one file each time. For partitioned tables, the source partition must be specified.
D. Purge: Clears the table directory. By default, use this command to clear information of the last three days.
正解：C

質問 2：
Alibaba Cloud E-MapReduce can be easily plugged with other
Alibaba Cloud services such as Log Service, ONS, MNS that act
as data ingestion channels from real-time data streams. Which
of the following descriptions about real-time processing are
correct? (Number of correct answers: 3)
A. This data is streamed and processed using Apache
Flume or Kafka in integration with Apache Storm using
complex algorithmsB. Kafka is usually preferred with Apache Storm to
provide data pipeline
B. Apache Sqoop is used to do the real-time data
transmission of structured data
C. The final processed data can be stored in HDFS, HBase
or any other big data store service in real time.
正解：A,B,C

質問 3：
When we use the MaxCompute tunnel command to upload the log.txt file to the t_log table, the t_log is a partition table and the partitioning column is (p1 string, p2 string).
Which of the following commands is correct?
A. tunnel upload log.txt t_log/p1="b1", p2="b2"
B. tunnel upload log.txt t_log/(p1="b1", p2="b2")
C. tunnel upload log.txt t_log/p1="b1"/p2="b2"
正解：A

質問 4：
In a scenario where a large enterprise plans to use MaxCompute to process and analyze its data, tens of thousands of tables and thousands of tasks are expected for this project, and a project team of 40 members is responsible for the project construction and O&M. From the perspective of engineering, which of the following can considerably reduce the cost of project construction and management?
Score 2
A. Use DataWorks
B. Develop directly on MaxCompute and use script-timed scheduling tasks
C. Use Eclipse
D. Use a private platform specially developed for this project
正解：A

質問 5：
Alibaba Cloud Elastic MapReduce (E-MapReduce) is a big data processing solution to quickly process huge amounts of data. Based on open source Apache Hadoop and Apache Spark, E-MapReduce flexibly manages your big data use cases such as trend analysis, data warehousing, and analysis of continuously streaming data.
Score 1
A. False
B. True
正解：B

質問 6：
MaxCompute supports two kinds of charging methods: Pay-As-You-Go and Subscription (CU cost).
Pay-As-You-Go means each task is measured according to the input size by job cost. In this charging method the billing items do not include charges due to ______.
Score 2
A. Data download
B. Computing
C. Storage
D. Data upload
正解：A

質問 7：
Machine Learning Platform for Artificial Intelligence (PAI) node is one of the node types in DataWorks business flow. It is used to call tasks created on PAI and schedule production activities based on the node configuration. PAI nodes can be added to DataWorks only _________ .
Score 2
A. after PAI experiments are created on PAI
B. after PAI service is activated
C. after MaxCompute service is activated
D. Spark on MaxCompute Machine Learning project is created
正解：A

質問 8：
In DataWorks, a task should be instantiated first before a
scheduled task is running every time, that is, generating a
corresponding instance which is executed for running the
scheduled task. The status is different in each phase of the
scheduling process, including ________. (Number of correct
answers: 3)
A. Running
B. Not running
C. Running Successfully
正解：A,B,C