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Huawei HCIE-Cloud Service Solutions Architect (Written) V2.0 Sample Questions:

1. Because stand-alone RDS has certain limitations in processing large quantities of data, a company decided to use Huawei Cloud DDM distributed middleware + RDS instance to solve the problems of limited stand-alone RDS expansion capabilities and slow database response. Which of the following description about the advantages of DDM distributed middleware + RDS instance over stand-alone RDS are correct? (Multiple choice)

A) Data distributed storage, DDM adopts a horizontal split method to split a single database with a large number of data records according to specified rules, and distributed storage to each partition.
B) High performance, DDM instance associates multiple RDS nodes, and realizes parallel computing at the same time.
C) Horizontal expansion, DDM supports new RDS instances without interrupting business, and horizontal expansion of storage space.
D) separate read and write, the user can read the data in accordance with the pressure load for each RDS instance configuration - one or more read-only instance, improve query concurrency.

2. In response to individual users' demands for building simple Web site applications, it is recommended that they adopt the microservice architecture for service construction and development, so as to achieve the purpose of improving productivity and controlling costs.

A) True
B) False

3. When a company chooses to use VPN to access resources on the cloud, it needs to have a fixed public IP address to establish a connection with Huawei Cloud.

A) True
B) False

4. Huawei Cloud DCS distributed storage report service provides support for RedisfOMemcached database version. Which of the following descriptions about the comparison of Reds and Memcached is wrong?

A) Memcached does not support persistence of teaching data, Redis can support scenarios that require persistent storage of data.
B) Memcached is suitable for caching with a simple data structure model, and Redis is suitable for caching farms with complex data structures.
C) Memcached is single-core and single-threaded, Redis supports multi-threading, and performance can be improved by increasing the amount of CPU.
D) The aue value of a single stored object in Memcached cannot exceed 1M. For scenarios exceeding 1M, Redis is recommended.

5. The user uses the backup migration function provided by HUAWEI CLOUD DRS. By uploading the backup file of the local Microsoft sqL Server database to the object storage service, and then restoring it to the target teaching database, in this scenario, which of the following descriptions about full backup and incremental backup is wrong?

A) Full backup is a one-time database migration, and business needs to be stopped.
B) The full backup + incremental backup method needs to complete the full backup and recovery and restore through an incremental backup file to minimize business interruption during the migration process.
C) Each incremental backup and recovery will keep the target database in the restoring state. At this time, the database cannot be read or written until the last incremental backup is restored.
D) Use DRS Backup migrate database data replication services provided by IP will be exposed to the public Internet.

Solutions: