Alibaba
ACA-Database
Q1:
Which of these are NOT good use cases for DTS (Data Transmission Service)? (Number of correct
answers: 2)
☐
A
Incremental synchronization for disaster recovery☐
B
Full database synchronization for database migration☐
C
Undoing changes made to a database by mistake☐
D
Saving database logs
Alibaba
ACA-Database
Q2:
lf Oracle databases need to be migrated to Alibaba Cloud, which of the following product solutions :an be recommended? (Number of correct answers: 3)
☐
A
Use PolarDB-0 that is highly compatible with Oracle.☐
B
Use Advanced Database & Application Migration (ADAM) to evaluate the migration project.☐
C
Use ApsaraDB for Redis as a cache service to provide acceleration capabilities.☐
D
Use Data Transmission Service (DTS) to migrate data.
Alibaba
ACA-Database
Q3:
Which of the following are the benefits of database views? (Number of correct answers: 3)
☐
A
Simplicity for queries☐
B
Simplicity in structure: presents the database as a set of virtual tables specific to particular users or groups of users☐
C
Easier for data visualization☐
D
Stabilization of information: presents a consistent, unchanged image of the database structure
Alibaba
ACA-Database
Q4:
Which of the following features are provided by PolarDB-O's proxy? (Number of correct answers: 4)
☐
A
Read/write splitting☐
B
Load balancing☐
C
Health checks for nodes☐
D
Failover strategies for high availability☐
E
Data encryption
Alibaba
ACA-Database
Q5:
Which of the following are the core technologies behind Database Backup Service? (Number of correct answers: 3)
☐
A
Multi-cloud and multi-backend backup☐
B
Real-time synchronization☐
C
High mount speeds (a few seconds)☐
D
Online query and analysis