ACA-BigData1 Exam Dumps - Alibaba Cloud Alibaba Big data Questions and Answers

Which of the following is not proper for granting the permission on a L4 MaxCompute table to a

user. (L4 is a level in MaxCompute Label-based security (LabelSecurity), it is a required MaxCompute

Access Control (MAC) policy at the project space level. It allows project administrators to control the

user access to column-level sensitive data with improved flexibility.)

Score 2

One Alibaba Cloud account is entitled to join only one organization that uses DataWorks.

The data development mode in DataWorks has been upgraded to the three-level structure

comprising of _____, _____, and ______. (Number of correct answers: 3)

Score 2

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

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

In DataWorks table permission system, you can revoke permissions only on the fields whose security level is higher than the security level of your account.

Score 1

DataWorks can be used to develop and configure data sync tasks. Which of the following statements

are correct? (Number of correct answers: 3)

Score 2

Apache Spark included in Alibaba E-MapReduce(EMR) is a fast and general-purpose cluster computing

system. It provides high-level APIs in Java, Scala, Python and R, and an optimized engine that supports

general execution graphs. It also supports a rich set of higher-level tools. Which of the following tools

does not be included in Spark?

Score 2

You are working on a project where you need to chain together MapReduce, Hive jobs.

You also need the ability to use forks, decision points, and path joins. Which ecosystem

project should you use to perform these actions?

MaxCompute SQL is suitable for processing less real-time massive data, and employs a syntax similar

to that of SQL. The efficiency of data query can be improved through creating proper indexes in the

table.

Score 1