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| Full Managed Alibaba Cloud Database | Alibaba |
The Full Managed Alibaba Cloud Database Exam is a comprehensive assessment designed to validate your knowledge and skills in managing databases on the Alibaba Cloud platform. It covers a wide range of topics, including the setup, configuration, and optimization of various Alibaba Cloud database services such as RDS, PolarDB, and MongoDB. The exam also tests your understanding of best practices for ensuring data security, reliability, and performance in a cloud environment. Passing this exam demonstrates your proficiency in effectively utilizing Alibaba Cloud’s database solutions to meet the needs of your business or organization.
Notice!
Always refer to the official Alibaba Cloud documentation for the most accurate and up-to-date information.
Exam Question
Single answer1.How many copies of data chunks that PolarStore replicates store?
B. 2
C. 3
D. 4
PolarStore replicates and stores three copies of data chunks to ensure data reliability and availability. This is a common practice in distributed storage systems to protect against data loss. Please note that this information might change as Alibaba Cloud continues to update and improve their services.
Single answer2.What database is not support in DMS?
B. PolarDB
C. Redis
D. MongoDB
Alibaba Cloud’s Data Management Service (DMS) supports various databases, including relational databases such as MySQL, SQL Server, PostgreSQL, PolarDB, DRDS, OceanBase, Oracle, and others. It also supports data warehouse related databases such as AnalyticDB, Data Lake Analytics, ClickHouse and other OLAP databases, and NoSQL databases such as MongoDB, Redis and others. However, DB2 is not mentioned among the supported databases. For more information: Alibaba Documentaion
Single answer3.What environment does DBS support?
B. Alibaba Cloud
C. Amazon Web Services
D. All of the above
Alibaba Cloud’s Database Backup Service (DBS) supports various environments where databases are deployed, such as ApsaraDB, Elastic Compute Service (ECS) instances, data centers, and cloud platforms provided by other cloud service providers. This means it can support environments on Azure, Alibaba Cloud, and Amazon Web Services. For more information: Alibaba Documentaion
Single answer4.() is not a NoSQL Database?
B. Redis
C. PolarDB
D. Cassandra
PolarDB is a cloud-native relational database that is compatible with MySQL, PostgreSQL, and Oracle. It is not a NoSQL database. On the other hand, MongoDB, Redis, and Cassandra are all examples of NoSQL databases. Always refer to the official documentation for the most accurate and up-to-date information. For more information: Alibaba Documentaion
True/False5.PolarDB supports TDE and TLS.
False
True. PolarDB does support Transparent Data Encryption (TDE) and Transport Layer Security (TLS). TDE performs real-time I/O encryption and decryption on data files, ensuring that data can be encrypted before it is written to a disk and decrypted when it is read into memory. For more information: Alibaba Documentaion
True/False6.To create indexes on ADB-MySQL is essential for performance.
False
False.Creating indexes on a database like ADB-MySQL can significantly improve the performance of data retrieval operations. However, it’s not always essential for performance.
True/False7.PolarDB supports multi master architecture.
False
PolarDB uses an architecture that consists of one primary node and multiple read-only nodes. While PolarDB for MySQL has released a multi-master architecture, it seems that it’s not the default or only architecture for PolarDB. For more information: Alibaba Documentaion
True/False8.HTAP architecture is based on AnalyticDB for PostgreSQL.
False
True. AnalyticDB for PostgreSQL does support HTAP (Hybrid Transactional/Analytical Processing) architecture. It uses a multi-replica query extension and hybrid row-column storage to improve performance in HTAP scenarios. This allows it to handle both online transaction processing (OLTP) and online analytical processing (OLAP) within a single system. For more information: Alibaba Documentaion
True/False9.PolarDB supports a maximum of 100TB data size.
False
True. PolarDB does support a maximum data size of 100TB. This large storage capacity allows PolarDB to overcome the limit of a single host and alleviates the need to purchase multiple instances for database sharding. For more information: Alibaba Documentaion
True/False10.Does DTS support increment database migration.
False
Alibaba Cloud’s Data Transmission Service (DTS) does support incremental database migration123. During migration, any changes made to the source database are replicated in real-time to the target system3. After a successful migration, you can continue synchronizing both the source and target databases for as long as you like. For more information: Alibaba Documentaion
Multiple answers11.What format does ADB stores data in? （Number of correct answer:2)
B. Columnar
C. Flat Files
D. Parquet
AnalyticDB for MySQL, also known as ADB, is a cloud-native enterprise-class data warehousing service that integrates database and big data technologies. It stores data in a columnar format which is optimal for analytical processing. However, it does not store data in flat files or Parquet format. For more information: Alibaba Documentaion
Multiple answers12.Which of the following are Alibaba Cloud provided NoSQL database products? (Number of correct answer: 3)
B. Hbase
C. RDS
D. Redis
Alibaba Cloud provides several NoSQL database products, including MongoDB, HBase, and Redis. Alibaba Cloud’s ApsaraDB for MongoDB is a secure, reliable, and elastic MongoDB service. ApsaraDB for HBase is a NoSQL database engine that is highly optimized and compatible with the community edition of HBase. ApsaraDB for Redis is a key-value storage service that offers in-memory caching and high-speed access to applications. For more information: Alibaba Documentaion
Multiple answers13.PolarDB supports 3 types of endpoints, including:
B. Cluster
C. Custom
D. Read Only
PolarDB supports three types of endpoints: Primary, Cluster, and Custom. The primary and cluster endpoints are provided by default, and you can create custom endpoints based on your business requirements. For more information: Alibaba Documentaion
Multiple answers14.Which of the following are DBS(Database Backup Service)unique advantages? (Number of correct answer: 3)
B. Low Cost
C. Verification & Fast Recovery
D. Support Alibaba Cloud databases only
Alibaba Cloud’s Database Backup Service (DBS) provides several unique
advantages:
1. Minimal RPO & RTO: DBS uses the log parsing and
synchronization technologies of databases. This helps your business achieve the
Recovery Point Objective (RPO) and Recovery Time Objective (RTO) within
seconds1.
2. Low Cost: DBS supports the pay-as-you-go billing method, ensuring
100% resource utilization and avoiding a large amount of upfront asset
investment. The compressed and compact backup formats can significantly reduce
storage costs.
3. Verification & Fast Recovery: DBS allows you to verify
the validity of backups at any time, and notifies you of the task status. It
also provides quick emergency recovery (within seconds), and recovery drills for
dozens of mainstream database types.
While DBS does support various
environments where databases are deployed, such as ApsaraDB, Elastic Compute
Service (ECS) instances, data centers, and cloud platforms provided by other
cloud service providers1, it is not limited to supporting Alibaba Cloud
databases only. For more information: Alibaba Documentaion
15.Which of the following are PolarDB supported database engine? (Number of correct answer: 3)
B. PolarDB for Postgres
C. PolarDB Compatible with Oracle
D. PolarDB for SQLServer
PolarDB supports three database engines: PolarDB for MySQL, PolarDB for PostgreSQL, and PolarDB Compatible with Oracle. For more information: Alibaba Documentaion