Free Alibaba Cloud ACA-BigData1 Exam Dumps Questions & Answers

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

• A.MaxCompute Tunnel provides the Java programming interface for usersB. MaxCompute provides two data import and export methods: using Tunnel Operation on the console directly or using TUNNEL written with java
• B.If data fails to be uploaded, use the restore command to restore the upload from where it was interrupted
• C.Tunnel commands are mainly used to upload or download data.They provide the following functions:upload, download, resume, show, purge etc.

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

• A.False
• B.True

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?

• A.Ingest with Hadoop streaming
• B.Ingest with Pig's LOAD command
• C.Ingest with sqoop import
• D.Ingest using Hive

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

If a MySQL database contains 100 tables, and jack wants to migrate all those tables to MaxCompute using DataWorks Data Integration, the conventional method would require him to configure 100 data synchronization tasks. With _______ feature in DataWorks, he can upload all tables at the same time.
Score 2

• A.Configure a MySQL Reader plug-in
• B.Configure a MySQL Writer plug-in
• C.Add data sources in Bulk Mode
• D.Full-Database Migration feature