Practice Free H13-629_V3.0-ENU Exam Online Questions
When using NTP automatic synchronization in an environment with a firewall, port 123 needs to be opened.
- A . True
- B . False
A company’s data center deploys two sets of Huawei all-flash storage, and uses arbitration servers to implement active-active configuration of the two storages. Three front-end business application servers are interconnected with the storage through fiber switches. Based on this scenario information, which of the following items are wrong? (Multiple choice)
- A . When the arbitration server fails, only one storage can provide services
- B . The network between the two storage devices fails and communication is impossible. The arbitration server initiates arbitration and decides on the storage device that continues to run the business.
- C . When one storage fails, the other storage will continue to provide services
- D . A front-end business application server fails, and the arbitration server initiates arbitration to decide which server will continue to run the business.
Online upgrade is a highly reliable method. Since online upgrade is carried out in batches, it does not affect business performance.
- A . True
- B . False
Synchronous remote replication is configured between two sets of Huawei OceanStor hybrid flash storage devices. In order to improve the write performance of the host to the primary storage, which of the following methods is effective? (Multiple choice)
- A . In scenarios where RPO does not require zero, it is recommended to use an asynchronous remote replication solution.
- B . Use SmartCache to accelerate the primary storage and speed up the primary storage 10 processing speed
- C . According to the business pressure of each LUN stored on the master side, the controllers of each LUN are evenly distributed to controller A and controller B.
- D . If you use an asynchronous remote replication solution, you need to design the start synchronization time based on the RPO indicator, and consider synchronizing data during business downturns as much as possible.
The virtualization platform migration solution is simple to operate and can ensure non-interruption of migration. It is suitable for scenarios such as VDI, virtual machines, and database cross-platform migration.
- A . True
- B . False
Due to business needs, a company plans to migrate business data from third-party storage to newly purchased Huawei all-flash storage devices. The business host operating system is Linux, the storage device provides block services for the host, and the multipath software is the system’s built-in multipath.
Before the migration, Engineer A was responsible for checking the environment. Which of the following descriptions is wrong?
- A . View resource usage information through the top command
- B . View disk mount information through the mount command
- C . View multipath information through the upadmin command
- D . View disk information through fdisk -l command
OceanStor Dorado divides each SSD disk into fixed-size chunks (abbreviated as CK, size is 4MR) and organizes all the chunks on the disk into chunk groups according to RAID elements, forming ().
Huawei’s Oceanstor Pacific series products provide a unified namespace for files, objects, and big data services. Which of the following descriptions about namespaces is wrong?
- A . A namespace can only support one service among files, objects, and big data.
- B . The objects for users to store files, set up sharing, and manage permissions are all located in this namespace
- C . Each shared directory is a subdirectory of the namespace
- D . Unified namespace provides users with a unified storage resource pool to achieve centralized management and allocation of storage space
In the planning and design of active-standby disaster recovery solutions, when synchronous remote replication technology is used between the production center and the disaster recovery center, the bandwidth calculation method is the same as that of the active-active disaster recovery bandwidth.
- A . True
- B . False
In Huawei’s all-flash storage devices, multi-stream write technology stores hot and cold data in different blocks through the cooperation of SSD drivers and controller software, thereby increasing the probability that data in a block is invalid at the same time, thereby reducing the amount of valid data moved during garbage collection and improving the performance and reliability of the SSD.
- A . True
- B . False