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Free ACA-BIGDATA1 Exam Braindumps (page: 3)

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PDF with 78 Questions

A Log table named log in MaxCompute is a partition table, and the partition key is dt. Anew partition is created daily to store the new data of that day. Now we have one month's data, starting from dt='20180101' to dt='20180131', and we may use ________ to delete the data on 20180101.

  1. delete from log where dt='20180101'
  2. truncate table where dt='20180101'
  3. drop partition log (dt='20180101')
  4. alter table log drop partition(dt='20180101')

Answer(s): D



DataV is a powerful yet accessible data visualization tool, which features geographic information systems allowing for rapid interpretation of data to understand relationships, patterns, and trends.
When a DataV screen is ready, it can embed works to the existing portal of the enterprise through ______.

  1. URL after the release
  2. URL in the preview
  3. MD5 code obtained after the release
  4. Jar package imported after the release

Answer(s): A



By integrating live dashboards, DataV can present and monitor business data simultaneously. This data-driven approach enables for well-organized data mining and analysis allowing the user to seize new opportunities that otherwise might remain hidden. It can support wide range of databases and data formats.
Which of the following options DataV does not support?

  1. Alibaba Cloud' s AnalyticDB, ApsaraDB
  2. Static data in CSV and JSON formats
  3. Oracle Database
  4. MaxCompute Project

Answer(s): D



You want to understand more about how users browse your public website. For example, you want to know which pages they visit prior to placing an order. You have a server farm of 100 web servers hosting your website.
Which is the most efficient process to gather these web servers across logs into traditional Hadoop ecosystem.

  1. Just copy them into HDFS using curl
  2. Ingest the server web logs into HDFS using Apache Flume
  3. Channel these clickstreams into Hadoop using Hadoop Streaming
  4. Import all user clicks from your OLTP databases into Hadoop using Sqoop

Answer(s): B






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