Easily To Pass New Alibaba Cloud ACA-Database Dumps with 82 Questions
Latest ACA-Database Study Guides 2022 - With Test Engine PDF
Alibaba Cloud ACA-Database Exam Syllabus Topics:
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NEW QUESTION 24
Which of the following are database architectures which have emerged during the evolution of database systems? (Number of correct answers: 3)
- A. Shared Everything
- B. Dedicated
- C. Shared Nothing
- D. Single Instance
Answer: A,B,C
NEW QUESTION 25
Which of the following is not a relational database?
- A. Oracle
- B. Redis
- C. Teradata
- D. DB2
Answer: B
NEW QUESTION 26
You are using DTS to migrate from a MySQL database installed on an ECS instance to a target database on RDS. In the DTS console, which of these is the correct "Instance Type" for the database?
- A. ApsaraDB MongoDB
- B. RDS Instance
- C. ECS-based Databases
- D. Express Connect DB
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/96154.htm?spm=a2c63.p38356.b99.118.59de5d1aWUVErx
NEW QUESTION 27
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. 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.
- C. DataWorks is not supported for MongoDB data processing.
Answer: A
NEW QUESTION 28
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 29
Which of the following are features supported by Alibaba Cloud RDS for MySQL? (The number of
- A. Multi-Zone Deployment ->You can select the Single-zone Deployment or Multi-zone Development method.
https://www.alibabacloud.com/help/doc-detail/26092.htm?spm=a2c63.p38356.b99.18.118b4437l50tDl - B. Read-Write Splitting ->
https://www.alibabacloud.com/help/doc-detail/96047.htm?spm=a2c63.p38356.b99.57.500dc3c6Kt0QLs - C. Local Snapshot Backup-> Snapshot Backup is Cloud disk instance. Cross-region backup is Local disk instance.
- D. 3)
- E. Computing nodes and Storage totally seperated-> In the Basic Edition, your database system consists of only one primary RDS instance, and computing is separated from storage. This edition is cost-effective.
https://www.alibabacloud.com/help/doc-detail/48980.html?spm=a2c5t.11065259.1996646101.searchclick - F. ACD
Answer: D,F
NEW QUESTION 30
Which of the following statements is NOT correct about the benefits you can gain through PolarDB?
- A. Large storage space
- B. locked backup
- C. Elastic scaling within minutes
- D. Millisecond-level latency in physical replication
- E. When you add a read-only node in an ApsaraDB for PolarDB cluster, you only need to pay for computing resources
Answer: B
Explanation:
Explanation
Lock-free backup.
https://www.alibabacloud.com/help/doc-detail/58768.htm?spm=a2c63.p38356.b99.10.1bcb7338k86bX5
NEW QUESTION 31
Which of the following tools can be used to migrate an on-premises database to Alibaba Cloud while causing minimal service downtime?
- A. pg_upgrade D.DTS
- B. pg_restore
- C. pg_basebackup
- D. pg_dump
Answer: C
NEW QUESTION 32
Which of the followings is NOT a correct way to connect to PolarDB?
- A. Use DMS to connect to a cluster
- B. Use the command line like 'mysql' to connect to a cluster
- C. Use PolarDB console to log into a cluster
- D. Use a client like HeidiSQL to connect to a cluster
Answer: C
Explanation:
Explanation
Use the PolarDB console to log on to Database.
https://www.alibabacloud.com/help/doc-detail/68511.htm?spm=a2c63.p38356.879954.7.7c2855b1aLLHjb#task-
NEW QUESTION 33
Alibaba Cloud DTS (Data Transmission Service) supports both full database migration and incremental synchronization.
- A. True
- B. False
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/176633.htm?spm=a2c63.p38356.b99.32.3e751a4dtHm9cr /
https://www.alibabacloud.com/help/doc-detail/56776.htm?spm=a2c63.p38356.b99.181.74896b5dro6cDo
NEW QUESTION 34
Which of the following computing capabilities are supported by AnalyticDB? (Number of correct answers: 4)
- A. Complex extract, transform, load (ETL)
- B. Interactive analysis
- C. Simple point query
- D. Real-time update
- E. Machine Learning
Answer: A,B,D,E
NEW QUESTION 35
Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)
- A. PolarDB supports both OLTP and OLAP scenarios very well
- B. The PolarDB database engine won't require you to replicate data when adding read-only nodes
- C. When you purchase a PolarDB cluster, you don't need to specify the storage capacity you want to purchase
- D. ApsaraDB for PolarDB uses the pay-as-you-go billing method, therefore you only need to pay for the storage resources you actually use
Answer: B,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 36
Alibaba Cloud DTS (Database Transmission Service) only supports MySQL databases.
- A. True
- B. False
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/26618.htm?spm=a2c63.p38356.b99.53.1c2b1156hNo8v0
NEW QUESTION 37
What is the maximum storage size that PolarDB currently provides?
- A. 1TB
- B. 100TB
- C. 10TB
- D. 50TB
Answer: B
Explanation:
Explanation
Each PolarDB cluster supports to scale up to 100 TB. https://www.alibabacloud.com/product/polardb
NEW QUESTION 38
Which of the following is the wrong statement about PolarDB design architecture?
- A. High speed network connection is enabled between the DB server and the chunk server, and data are transferred using the Remote Direct Memory Access (RDMA) protocol
- B. A PolarDB cluster contains one primary instance and up to 15 read-only instances
- C. PolarDB consolidate compute processes and storage processes in one box, allowing the database capacity to scale up and down to meet your application needs in Alibaba Cloud
- D. Read/write splitting is enabled for PolarDB clusters by default, providing transparent, highly available, and self-adaptive load balancing for your database
Answer: C
Explanation:
Explanation
PolarDB decouples compute from storage.
https://www.alibabacloud.com/help/doc-detail/58766.htm?spm=a2c63.p38356.b99.11.4e333181dMpFmV
NEW QUESTION 39
Which database utility is good for database management and DevOps?
- A. ADAM
- B. DAS
- C. DTS
- D. DMS
- E. DBS
Answer: D
Explanation:
Explanation
Database DevOps Solutions. https://www.alibabacloud.com/product/data-management-service /
https://www.alibabacloud.com/help/doc-detail/190124.htm?spm=a2c63.p38356.b99.40.6ad93d19Xe9h14
NEW QUESTION 40
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