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ACA-BigData1 Questions and Answers

Question # 4

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.

Use DataWorks

B.

Use Intelij IDEA

C.

Use MaxCompute Console

D.

No supported tool yetc

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Question # 5

AliOrg Company plans to migrate their data with virtually no downtime. They want all the data

changes to the source database that occur during the migration are continuously replicated to the

target, allowing the source database to be fully operational during the migration process. After the

database migration is completed, the target database will remain synchronized with the source for as

long as you choose, allowing you to switch over the database at a convenient time. Which of the

following Alibaba products is the right choice for you to do it:

Score 2

A.

Log Service

B.

DTS(Data Transmission Service)

C.

Message Service

D.

CloudMonitor

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Question # 6

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

A.

Access Username

B.

Access Key ID

C.

Access Key Secret

D.

Access Password

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Question # 7

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

A.

True

B.

False

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Question # 8

DataService Studio in DataWorks aims to build a data service bus to help enterprises centrally

manage private and public APIs. DataService Studio allows you to quickly create APIs based on data

tables and register existing APIs with the DataService Studio platform for centralized management and

release. Which of the following descriptions about DataService Studio in DataWorks is INCORRECT?

Score 2

A.

DataService Studio is connected to API Gateway. Users can deploy APIs to API Gateway with oneclick.

B.

DataService Studio adopts the serverless architecture. All you need to care is the query logic of APIs,

instead of the infrastructure such as the running environment.

C.

To meet the personalized query requirements of advanced users, DataService Studio provides the

custom Python script mode to allow you compile the API query by yourself. It also supports multi-table

association, complex query conditions, and aggregate functions.

D.

Users can deploy any APIs created and registered in DataService Studio to API Gateway for

management, such as API authorization and authentication, traffic control, and metering

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Question # 9

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

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;

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Question # 10

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

A.

Stored as metadata on the NameNode

B.

Stored along with the data in HDFS

C.

Stored in the RDBMS like MySQL

D.

Stored in ZooKeeper

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Question # 11

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

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

Score 2

A.

Project

B.

Solution

C.

Business flow

D.

Directory

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