[Jan 30, 2022] Passing Key To Getting ACA-Database Certified Exam Engine PDF
ACA-Database Exam Dumps Pass with Updated Jan-2022 Tests Dumps
Alibaba Cloud ACA-Database Exam Syllabus Topics:
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NEW QUESTION 14
Which of the following statements about the compatibility of AnalyticDB for PostgreSQL is NOT true?
- A. Support for the Java Database Connectivity (JDBC) protocol
- B. Fully compatible with Oracle syntax
- C. Support for the SQL2003 syntax standard
- D. Compliance with PostgreSQL and Greenplum protocols
Answer: B
NEW QUESTION 15
DTS (Data Transmission Service) must have access to a database user account on both the target and source database, in order to work.
- A. True
- B. False
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/26652.htm?spm=a2c63.p38356.879954.26.2ab232664Wkc2m#co
NEW QUESTION 16
Alibaba Cloud DTS (Data Transmission Service) can only migrate between databases that are hosted on RDS.
- A. True
- B. False
Answer: B
Explanation:
Explanation
Alibaba Cloud Data Transmission Service (DTS) helps you migrate data between data stores, such as relational databases, NoSQL databases, and data warehouses. You can use DTS to migrate your data to Alibaba Cloud or between combinations of cloud and on-premises data systems. .
https://www.alibabacloud.com/help/doc-detail/176063.htm?spm=a2c63.p38356.b99.6.2ef8c790WL4Jku
NEW QUESTION 17
Alibaba Cloud DTS (Data Transmission Service) is a file migration tool.
- A. True
- B. False
Answer: B
Explanation:
Explanation
DTS is a data migration, integration, synchronization and change tracking tool.
https://www.alibabacloud.com/help/doc-detail/176063.htm?spm=a2c63.l28256.b99.6.490d7142CiFvPb
NEW QUESTION 18
If a database exception occurs in a PolarDB cluster because important data is deleted by mistake, how i can data be restored?
- A. Level-1 backup
- B. Level-2 backup
- C. Level 1 backup + Redo log
- D. Level-2 backup + Redo log
Answer: D
NEW QUESTION 19
You have a client that wants to move from another cloud provider's database service to RDS. Which of these is the best way to move their database to Alibaba Cloud?
- A. Use DTS (Data Transmission Service)
- B. Make a full physical backup of their database and copy it into OSS
- C. Migrate the entire VM hosting the database
- D. This type of migration isn't possible
Answer: A
NEW QUESTION 20
Which of the following features is provided by Data Management (DMS)?
- A. Evaluates the database migration project
- B. Integrates data across multiple data sources
- C. Enables online database management, such as data query, database and table management, and permission management
- D. Backs up multiple types of databases
Answer: A
NEW QUESTION 21
What is the maximum storage size that PolarDB currently provides?
- A. 100TB
- B. 1TB
- C. 10TB
- D. 50TB
Answer: A
Explanation:
Explanation
Each PolarDB cluster supports to scale up to 100 TB. https://www.alibabacloud.com/product/polardb
NEW QUESTION 22
PolarDB for MySQL uses shared distributed storage and supports dual-zone deployment by default. How many data replicas are available across the two zones?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 23
What is the maximum number of read-only nodes in a PolarDB cluster?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 24
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. True
- B. False
Answer: B
Explanation:
Explanation
PolarDB cluster supports Manually and Automatically switch over services between primary and read-only nodes.
https://www.alibabacloud.com/help/doc-detail/141229.htm?spm=a2c63.p38356.b99.113.36df231dK2DVX0
NEW QUESTION 25
PolarDB for MySQL allows you to deploy a cluster across multiple zones. Compared with single-zone clusters, multi-zone clusters have better disaster recovery capabilities and can withstand data centre-level faults.
- A. True
- B. False
Answer: A
NEW QUESTION 26
Which of the following statements about AnalyticDB for MySQL is true?
- A. AnalyticDB for MySQL supports transactions.
- B. AnalyticDB for MySQL is a NoSQL database.
- C. AnalyticDB for MySQL can be used to build online transaction systems.
- D. AnalyticDB for MySQL can be used to build enterprise-grade data warehouse projects.
Answer: D
NEW QUESTION 27
Which of the following deployment architectures are supported by Alibaba Cloud ApsaraDB for MongoDB?
(Number of correct answers: 3)
- A. Replica set instance that consists of three nodes
- B. Standalone instance
- C. Primary/secondary instance that consists of two nodes
- D. Replica set instance that consists of six nodes
- E. Sharded cluster instance
Answer: A,B,E
NEW QUESTION 28
Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)
- A. The PolarDB database engine won't require you to replicate data when adding read-only nodes
- B. PolarDB supports both OLTP and OLAP scenarios very well
- C. ApsaraDB for PolarDB uses the pay-as-you-go billing method, therefore you only need to pay for the storage resources you actually use
- D. When you purchase a PolarDB cluster, you don't need to specify the storage capacity you want to purchase
Answer: A,C,D
Explanation:
Explanation
Kernel Features: OLTP performance.
https://www.alibabacloud.com/help/doc-detail/172293.htm?spm=a2c63.p38356.b99.81.101b333ePsD0YF
NEW QUESTION 29
Which of the following is NOT supported by schema migration in Advanced Database & Application Migration (ADAM)?
- A. Migrate the schemas that require a manual revision but have not been revised
- B. Re-migrate the failed schemas
- C. Re-migrate all schemas
- D. Customize schema migration
Answer: A
NEW QUESTION 30
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ACA-Database exam questions for practice in 2022 Updated 82 Questions: https://www.exam4free.com/ACA-Database-valid-dumps.html
