Which of the following features is provided by Data Management (DMS)?
A. Integrates data across multiple data sources
B. Enables online database management, such as data query, database and table management, and permission management
C. Evaluates the database migration project
D. Backs up multiple types of databases
正解:C
質問 2:
Which of the following statements about MongoDB is NOT true?
A. MongoDB can be deployed in cluster mode.
B. MongoDB supports transactions.
C. MongoDB is a relational database.
D. MongoDB is a document database.
正解:C
質問 3:
Which of the following types of data that is stored in PostgreSQL databases can support the one-to-many data model? (Number of correct answers: 3)
A. Array
B. GIS
C. Range
D. JSONB
E. JSON
F. String
G. Cube
正解:A,E,F
質問 4:
Which of the following are database architectures which have emerged during the evolution of database systems? (Number of correct answers: 3)
A. Dedicated
B. Shared Everything
C. Single Instance
D. Shared Nothing
正解:A,B,D
質問 5:
Each PolarDB cluster consists of one primary node and one or more read-only nodes. The system only support manually switch over services from the primary node to a read-only node.
A. False
B. True
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 6:
Which of the following statements about Alibaba Cloud ApsaraDB for MongoDB is true?
A. Alibaba Cloud and MongoDB have a strategic partnership, so Alibaba Cloud Is able to provide the latest MongoDB features in our ApsaraDB for MongoDB product, in all our global regions.
B. DataWorks is not supported for MongoDB data processing.
C. It takes a longer time to perform operations and maintenance (O&M) on ApsaraDB for MongoDB instances than on self-installed and self-managed MongoDB.
正解:A
質問 7:
Which of the following are relational databases? (Number of correct answers: 5)
A. MongoDB
B. Oracle
C. Redis
D. MariaDB
E. HBase
F. MySQL
G. TSDB
H. PostgreSQL
I. SQL Server
正解:B,D,F,H,I
質問 8:
Which of the following statements is NOT correct about the benefits you can gain through PolarDB?
A. Elastic scaling within minutes
B. Millisecond-level latency in physical replication
C. locked backup
D. When you add a read-only node in an ApsaraDB for PolarDB cluster, you only need to pay for computing resources
E. Large storage space
正解:C
解説: (Pass4Test メンバーにのみ表示されます)
浅田** -
おお ありがとうございます!
Pass4Testの問題集は助かりました。ACA-Databaseの本場試験に合格致しました。