Alibaba Cloud ACA Big Data Certification - ACA-BigData1 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

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. True B. False

Discussion 0

Correct Answer: A Vote an answer

Question 2

Which of the following task types does DataWorks support?
(Number of correct answers: 4)

A. SHELL B. Data Synchronization C. MaxCompute SQL D. Scala E. MaxCompute MR

Discussion 0

Correct Answer: A,B,C,E Vote an answer

Question 3

Users can use major BI tools, such as Tablueu and FineReport, to easily connect to MaxCompute projects, and perform BI analysis or ad hoc queries. The quick query feature in MaxCompute is called
_________ allows you to provide services by encapsulating project table data in APIs, supporting diverse application scenarios without data migration.
Score 2

A. Lightning B. Labelsecurity C. Tunnel D. MaxCompute Manager

Discussion 0

Correct Answer: A Vote an answer

Question 4

MaxCompute Tunnel provides high concurrency data upload and download services. User can use the Tunnel service to upload or download the data to MaxCompute. Which of the following descriptions about Tunnel is NOT correct:
Score 2

A. Tunnel commands are mainly used to upload or download data.They provide the following functions:upload, download, resume, show, purge etc. B. If data fails to be uploaded, use the restore command to restore the upload from where it was interrupted C. MaxCompute Tunnel provides the Java programming interface for usersB. MaxCompute provides two data import and export methods: using Tunnel Operation on the console directly or using TUNNEL written with java

Discussion 0

Correct Answer: A Vote an answer

Question 5

MaxCompute is a general purpose, fully managed, multi-tenancy data processing platform for largescale data warehousing, and it is mainly used for storage and computing of batch structured data. Which of the following is not a use case for MaxCompute?
Score 2

A. Date Warehouse B. Order management C. Social networking analysis D. User profile

Discussion 0

Correct Answer: B Vote an answer

Question 6

DataWorks provides powerful scheduling capabilities including time-based or dependency-based task trigger mechanisms to perform tens of millions of tasks accurately and punctually each day based on DAG relationships. It supports multiple scheduling frequency configurations like: (Number of correct answers: 4) Score 2

A. By Week B. By Hour C. By Second D. By Day E. By Minute

Discussion 0

Correct Answer: A,B,D,E Vote an answer

Question 7

In MaxCompute command line, if you want to view all tables in a project, you can execute command:
______.
Score 2

A. use tables; B. select tables; C. desc tables; D. show tables;

Discussion 0

Correct Answer: D Vote an answer

Question 8

JindoFS in E-MapReduce provided by SmartData uses OSS as the storage back end.
Score 1

A. True B. False

Discussion 0

Correct Answer: A Vote an answer