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

Log Service (SLS)

Answer

Message Service (MNS)

Answer

EventBridge

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

Pay only for storage, compute is free

Answer

Fixed monthly fee regardless of usage

Answer

Per-query flat fee independent of data size

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

Data Map

Answer

Data Quality

Answer

Data Integration

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

Transactional OLTP workloads with many small writes

Answer

Caching frequently accessed data

Answer

Graph database operations

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

Columnar storage for analytics

Answer

Data visualization

Answer

Hadoop cluster management

Question 6

What is the main advantage of using Hologres over MaxCompute for analytics workloads?

Accepted Answer

Hologres provides sub-second interactive query latency, whereas MaxCompute is optimized for batch processing

Answer

Hologres is cheaper for batch ETL jobs

Answer

Hologres supports more programming languages

Answer

Hologres has higher data storage limits

Question 7

Which Alibaba Cloud service can be used to visually build data integration workflows that move data between different sources and targets without writing code?

Accepted Answer

DataWorks Data Integration

Answer

MaxCompute Studio

Answer

Quick BI

Answer

DataV