Pass the Alibaba Cloud Alibaba Big data ACA-BigData1 Questions and answers with ExamsMirror

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

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

Tom is the administrator of a project prj1 in MaxCompute. The project involves a large volume of

sensitive data such as user IDs and shopping records, and many data mining algorithms with proprietary

intellectual property rights. Tom wants to properly protect these sensitive data and algorithms. To be

specific, project users can only access the data within the project, all data flows only within the project.

What operation should he perform?

Score 2

The FTP data source in DataWorks allows you to read/write data to FTP, and supports configuring

synchronization tasks in wizard and script mode.

Score 1

DataWorks can be used to create all types of tasks and configure scheduling cycles as

needed. The supported granularity levels of scheduling cycles include days, weeks,

months, hours, minutes and seconds.

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?

Alibaba Cloud Quick BI reporting tools support a variety of data sources, facilitating users to analyze

and present their data from different data sources. ______ is not supported as a data source yet.

Score 2

Your company stores user profile records in an OLTP databases. You want to join these records with

web server logs you have already ingested into the Hadoop file system. What is the best way to obtain

and ingest these user records?

Score 2

There are multiple connection clients for MaxCompute, which of the following is the easiest way to

configure workflow and scheduling for MaxCompute tasks?

Score 2

A distributed file system like GFS and Hadoop are design to have much larger block(or chunk) size

like 64MB or 128MB, which of the following descriptions are correct? (Number of correct answers: 4)

Score 2