ACA-BigData1 Practice Questions

In DataWorks table permission system, you can revoke permissions only on the fields whose security level is higher than the security level of your account.

Score 1

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

Alibaba Cloud E-MapReduce can be easily plugged with other

Alibaba Cloud services such as Log Service, ONS, MNS that act

as data ingestion channels from real-time data streams. Which

of the following descriptions about real-time processing are

correct? (Number of correct answers: 3)

DataV is a powerful yet accessible data visualization tool, which features geographic information

systems allowing for rapid interpretation of data to understand relationships, patterns, and trends.

When a DataV screen is ready, it can embed works to the existing portal of the enterprise through

______.

Score 2

MaxCompute can coordinate multiple users to operate one project through ACL authorization. The

objects that can be authorized by ACL include ______. (Number of correct answers: 3)

Score 2

Assume that Task 1 is configured to run at 02:00 each day. In this case, the scheduling system

automatically generates a snapshot at the time predefined by the periodic node task at 23:30 each day.

That is, the instance of Task 1 will run at 02:00 the next day. If the system detects the upstream task is

complete, the system automatically runs the Task 1 instance at 02:00 the next day.

Score 1

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.

Which of the following task types does DataWorks support?

(Number of correct answers: 4)

In DataWorks, a task should be instantiated first before a

scheduled task is running every time, that is, generating a

corresponding instance which is executed for running the

scheduled task. The status is different in each phase of the

scheduling process, including ________. (Number of correct

answers: 3)

MaxCompute supports two kinds of charging methods: Pay-As-You-Go and Subscription (CU cost).

Pay-As-You-Go means each task is measured according to the input size by job cost. In this charging

method the billing items do not include charges due to ______.

Score 2