ACA Big Data and Analytics Services 2

Question 1

Which Alibaba Cloud service is used to collect, subscribe to, and distribute real-time message streams, similar to Apache Kafka?

Accepted Answer

DataHub

Answer

DataHub is Alibaba Cloud's real-time data ingestion and distribution service that acts as a pub/sub message bus for streaming data, similar to Apache Kafka.

Question 2

What billing model does MaxCompute primarily offer for query costs?

Accepted Answer

Pay-as-you-go based on data scanned (CU consumption) or subscription reserved CUs

Answer

MaxCompute offers pay-as-you-go billing based on computing units (CUs) consumed per task, as well as subscription packages with reserved CUs for predictable workloads.

Question 3

Which component in DataWorks is responsible for defining and triggering task execution on a schedule?

Accepted Answer

Task Scheduler (Scheduling and Operations center)

Answer

DataWorks' Scheduling and Operations Center handles defining cron-based schedules, task dependencies, and monitoring the execution of data pipeline tasks.

Question 4

Alibaba Cloud's AnalyticDB for PostgreSQL is best suited for which use case?

Accepted Answer

Massively parallel processing (MPP) for large-scale analytical queries

Answer

AnalyticDB for PostgreSQL uses a Massively Parallel Processing (MPP) architecture optimized for complex analytical queries over large datasets, making it ideal for data warehouse workloads.

Question 5

In a typical Alibaba Cloud big data pipeline, what role does Log Service (SLS) play?

Accepted Answer

Centralized log collection, storage, querying, and real-time analysis of machine-generated data

Answer

Log Service (SLS) is Alibaba Cloud's platform for collecting, storing, indexing, and analyzing log and metric data from applications, servers, and services in real time.

ACA - Alibaba Cloud Certified Associate Practice Test

ACA - Alibaba Cloud Certified Associate Practice Test

ACA Big Data and Analytics Services 2