Which of the following statements regarding the device running check is true?
A. You can run the display memory-usage command to check the memory usage of the device. If the value of Memory Using Percentage exceeds 80%, pay attention to the memory usage.
B. You can run the display device command to check the running status of a board. If the board is online, the value of Online should be Present.
C. You can run the display fan command to check the fan status. If the value of Present is NO, the fan is in normal state.
D. You can run the display ftp-server command to check FTP ports. The FTP ports not in use should be recorded.
During unpacking and inspection, the device appearance is intact and all modules work properly after the first power-on. After the device continuously runs for 24 hours, a fault occurs on a card. This situation does not conform to DOA conditions.
A. TRUE
B. FALSE
Which of the following operations is performed in the risky operation process?
A. Solution formulation
B. Authorization obtaining
C. Technical review
D. Implementation and result feedback
Huawei's enterprise network NMS eSight has three editions: simplified, standard, and professional. Unlike the standard edition, which of the following features is provided by the professional edition?
A. Provide a database backup tool.
B. Support multi-user management.
C. Support management of the WLAN and MPLS VPN.
D. Support hierarchical management model.
Which of the following formulas is used to calculate availability?
A. MTBF/MTTR x 100%
B. MTTR/MTBF x 100%
C. (MTBF + MTTR)/MTBF x 100%
D. MTBF/(MTBF + MTTR) x 100%
An enterprise network usually uses private IP addresses for internal communication. Which of the following addresses is a private IP address?
A. 0.1.1.1
B. 127.5.4.3
C. 128.0.0.5
D. 172.24.35.56
E. 231.33.24.35
The greatest difference between a Fat AP and a Fit AP is that a Fat AP provides access to more users, has higher performance, and is more applicable to large networks.
A. TRUE
B. FALSE
AR series routers provide various slots. Which of the following is not included?
A. SIC
B. WSIC
C. HSIC
D. XSIC
To improve STP running stability, a network administrator wants to configure some STP features or protection mechanism on switches. Which of the following configuration roadmaps is correct?
A. Configure the user access port as an edge port to prevent the user from connecting to the switch on this port.
B. Configure root protection on the user access port to ensure that the user does not connect to a switch with a higher priority.
C. Configure loop protection on positions where loops have occurred so that loops are always blocked.
D. Configure BPDU protection so that the switch checks the validity of each received BPDU to prevent attacks of forged BPDUs.
When a large number of IP phones and WLAN APs exist on a network, which of the following switches is used?
A. Switches supporting STP edge ports
B. Switches supporting PoE
C. Switches supporting SACG
D. Switches supporting QoS
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