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Alibaba Cloud ACA-BigData1 ACA Big Data Certification Exam Exam Practice Test

Demo: 11 questions
Total 78 questions

ACA Big Data Certification Exam Questions and Answers

Question 1

If a task node of DataWorks is deleted from the recycle bin, it can still be restored.

Options:

A.

True

B.

False

Question 2

Function Studio is a web project coding and development tool independently developed by the

Alibaba Group for function development scenarios. It is an important component of DataWorks.

Function Studio supports several programming languages and platform-based function development

scenarios except for ______ .

Score 2

Options:

A.

Real-time computing

B.

Python

C.

Java

D.

Scala

Question 3

Scenario: Jack is the administrator of project prj1. A new team member, Alice (already has an Alibaba

Cloud account alice@aliyun.com), applies for joining this project with the following permissions: view

table lists, submit jobs, and create tables. Which of the following SQL statements is useless:

Score 2

Options:

A.

use prj1;

B.

add user aliyun$alice@aliyun.com;

C.

grant List, CreateTable, CreateInstance on project prj1 to user aliyun$alice@aliyun;

D.

flush privileges;

Question 4

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

Options:

A.

True

B.

False

Question 5

In order to ensure smooth processing of tasks in the Dataworks data development kit, you must

create an AccessKey. An AccessKey is primarily used for access permission verification between various

Alibaba Cloud products. The AccessKey has two parts, they are ____. (Number of correct answers: 2)

Score 2

Options:

A.

Access Username

B.

Access Key ID

C.

Access Key Secret

D.

Access Password

Question 6

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

Options:

A.

True

B.

False

Question 7

Your company stores user profile records in an OLTP databases. You want to join the serecords 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?

Options:

A.

Ingest with Hadoop streaming

B.

Ingest using Hive

C.

Ingest with sqoop import

D.

Ingest with Pig's LOAD command

Question 8

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

Options:

A.

Results returned from the API

B.

MaxCompute

C.

Local Excel files

D.

MySQL RDS

Question 9

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.

Score 1

Options:

A.

True

B.

False

Question 10

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

Score 2

Options:

A.

task

B.

zero-load

C.

gateway

D.

agent

Question 11

When odpscmd is used to connect to a project in MaxCompute, the command ______ can be

executed to view the size of the space occupied by table table_a.

Score 2

Options:

A.

select size from table_a;

B.

size table_a;

C.

desc table_a;

D.

show table table_a;

Demo: 11 questions
Total 78 questions