Online Access Free ACA-BigData1 Exam Questions

_______ instances in E-MapReduce are responsible for computing and can quickly add computing power to a cluster. They can also scale up and down at any time without impacting the operations of the cluster.
Score 2

• A.Task
• B.Core
• C.Master
• D.Gateway

In MaxCompute command line, if you want to view all tables in a project, you can execute command:
______.
Score 2

• A.select tables;
• B.use tables;
• C.desc tables;
• D.show tables;

DataWorks provides two billing methods: Pay-As-You-Go (post-payment) and subscription (prepayment).
When DataWorks is activated in pay-as-you-go mode, Which of the following billing items will not apply?
Score 2

• A.Shared resource groups for scheduling and Data Integration instances
• B.Calls and execution time of APIs compiled in DataService Studio
• C.Baseline instances generated by Intelligent Monitor and Data Quality checks
• D.Task nodes created by developer

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

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.