Huawei H13-231-ENU 問題集

質問 1：
What is the correct statement about data routing and cluster management in the Huawei Fusionstorage architecture? (Multiple choice)
A. When the OSD starts, it queries the MDC from the MDC, reports the status to the home MDC, and the home MDC sends the status change to the VBS. When the home MDC fails, the master MDC designates one MDC to take over, and at most two pools belong to one MDC.
B. Query the main MDC when VBS starts and register with the main MDC.
C. When the system starts, MDC and ZK interact to determine MC, and the main MDC and other MDCs monitor each other's heartbeats. The master MDC decides who will take over after a certain MDC fails. Other MDC found that the main MDC was faulty and interacted with zk as the main MDC.
D. Distributed storage system writes data. According to the LBA from the application layer and the block size, the VBS generates multiple Keys in units of 1MB, hashes the Keys into Partition IDs, and then follows up the Partition to find the main OSD, and the main OSD notifies the partition corresponding to the OSD to start writing data.
E. When the distributed storage system is created, N Partitions are generated in the space of 2 to the 32th power, and the backup OSD starting write data corresponding to the Partition is generated according to the distribution of the disk.
正解：A,B,C,D

質問 2：
BMC is an independent system consisting of a processor, a small system, and management software. Can work independently. Servers need BMC, and PC computers do not have BMC.
A. False
B. True
正解：B

質問 3：
Which of the following tuning strategies are suitable for Nginx physical server as Web Server? (Multiple choice)
A. Increase the range of available ports to avoid a large number of connections occupying ports, new connections continue to search for available ports, resulting in performance degradation.
B. Increase the buffer size to avoid buffer overflow caused by a large number of new connections and a connection cannot be established.
C. Configure the maximum number of open files to 1024 to limit Nginx resource overhead.
D. reduce TIMEWAIT connections, to avoid excessive TIME WAIT connected network resources lead to new connections to resource constraints.
正解：A,B,D

質問 4：
When engineer A wants to know the current server CPU load when maintaining EulerOS, which of the following commands can be used? (Multiple choice)
A. uptime
B. sar
C. top
D. iostat
正解：A,B,C,D

質問 5：
Huawei has achieved high-performance network acceleration through its self-developed network control chip. Which of the following are correct about the understanding of this network control chip? (Multiple choice)
A. Through self-developed programmable network engine, Huawei Unique Networking smart network card can accelerate business in cloud network, cloud storage and other scenarios, while optimizing the utilization of infrastructure
B. Huawei IN series adopts standard card form, which is convenient for the deployment and operation and maintenance of various servers.
C. Huawei IN series smart network card can support 2*100G/4*25G network card interface, and support PCIe Gen3 X16 system interface.
正解：A,B,C

質問 6：
There are two main types of physical interfaces of the network card: electrical and optical.
A. False
B. True
正解：B