ACA-BigData1 ACA Big Data Certification Exam Questions and Answers

MaxCompute tasks contain computational tasks and non-computational tasks. The

computational tasks require actual operations on data stored in the table. MaxCompute

parses the task to obtain its execution plan, and submits the task for execution. The noncomputational

tasks require substantial reading of and modification to metadata

information. Therefore, the task is not parsed, and no execution plan is provided. The

task is directly submitted for execution. The latter one has a faster response speed than

the former one. Which of the following operations on the table t_test is a computational

task?

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

Which of the following Hadoop ecosystem componets can you choose to setup a streaming log

analysis system?(Number of correct answers: 3)

Score 2

A company originally handled the local data services through the Java programs. The local data have

been migrated to MaxCompute on the cloud, now the data can be accessed through modifying the Java

code and using the Java APIs provided by MaxCompute.

Score 1

Where is the meta data(e.g.,table schemas) in Hive?

Score 2

There are three types of node instances in an E-MapReducecluster: master, core, and _____ .

Score 2

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

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

Score 2

An enterprise uses Alibaba Cloud MaxCompute for storage of service orders, system logs and

management data. Because the security levels for the data are different, it is needed to register multiple

Alibaba Cloud accounts for data management.

Score 1