Practice Free H19-401_V2.0 Exam Online Questions
In the CloudCampus public cloud deployment scenario, users can perform AP wireless tuning configuration on the cloud management platform in automatic mode, manual mode, and timing mode. The principles are basically the same, and the cloud management platform is responsible for tuning and calculation, and then sends it to each AP.
- A . True
- B . False
When the CloudCampus solution is applied to small and medium-sized campus networks, which description of the access layer design is correct? (Multiple choice)
- A . When selecting a switch, you need to calculate the number of connected APs * AP power < the power that the PoE switch can provide. Therefore, you need to select a PE switch with a suitable power supply based on the specific model and number of APs.
- B . For micro-store scenarios, when AP coverage is required, APs and export devices must be deployed for the store. APs cannot be directly connected to export links and do not support NAT.
- C . For medium-sized supermarkets and general education scenarios, the network scale is large, and it is recommended to use stacking networking at the access layer. When a single access machine can meet the access density of downstream terminals, a single machine networking can be used at the access layer. When the upstream device of the access layer adopts stacking networking, it is recommended to interconnect the Eth-Trunk link with the upstream device. If multiple AP coverage is required, expand AP access through PoE LSw.
- D . Select the appropriate access switch model based on whether PoE support is required and the number of access APs.
Which is the KPI for indoor coverage in WLAN network planning?
- A . 95% of the area RSSI ≥ 65dBm
- B . 95% of the area RSSI ≥ 70dBm
- C . 95% of the area RSSI ≥ 55dBm
- D . 95% of the area RSSI ≥ 60dBm
- E . 95% of the area RSSI ≥ 56dBm
Regarding equipment installation, which of the following descriptions are correct? (Multiple choice)
- A . When installing the equipment, you must first connect the ground wire; when removing the equipment, remove the ground wire last.
- B . Before operating the equipment, you should wear anti-static work clothes, anti-static gloves or wrist straps, and remove conductive objects such as jewelry and watches to avoid electric shock or burns.
- C . Do not look directly at the outlet of the optical fiber or optical module with naked eyes to prevent the laser beam from burning your eyes.
- D . Do not operate equipment and cables during thunderstorms.
WLAN QoS is a differentiated service capability provided to meet the different network traffic requirements of wireless users. What functions can be achieved by using QoS technology in WLAN networks? (Multiple choice)
- A . Fair occupation of wireless channels: Through Airtime scheduling, multiple users on the same radio frequency can occupy the wireless channel relatively fairly in terms of time.
- B . Reduction of network congestion: Through traffic regulation, the user’s sending rate is limited, effectively avoiding data packet loss caused by network congestion.
- C . Efficient use of wireless channel resources: Through the Wi-Fi Multimedia (WMM) standard, high-priority data can compete for wireless channels first.
- D . Differentiated services for different types of services: By matching message information with ACL rules or identifying applications, messages of the same type can be identified. The same QS service is provided for messages of the same type to achieve differentiated services for different types of services.
What device roles can be set for devices added to an iMaster NCE tenant account? (Multiple choice)
- A . RR
- B . IWG
- C . WAC
- D . CPE
The RF tuning principle includes the following steps. Which of the following is the correct order?
1) AP reports detection results
2) All APs perform neighbor detection
3) The AC enables global tuning and notifies each AP to start periodic neighbor detection.
4) AC sends optimization results
5) After the AC waits for all APs to report neighbor information, it starts running the global tuning algorithm to allocate channels, power, etc. to the APs.
- A . 1-2-3-4-5
- B . 3-2-1-4-5
- C . 3-2-1-5-4
- D . 2-1-3-5-4
After the user successfully completes the Portal authentication, he can disconnect from the network and reconnect within a certain period of time. He can directly access through MAC authentication without entering the username and password to re-authenticate the Portal. We call this MAC bypass authentication.
- A . True
- B . False
What are the considerations for using directional antennas in high-density scenarios? (Multiple choice)
- A . Reduce the number of STA roaming times
- B . Improve the business concurrency capability of adjacent cells
- C . Control the signal coverage of a single AP
- D . Reduce mutual interference between APs
Which of the following descriptions about dual-link backup networking is incorrect?
- A . Dual-link backup technology improves network reliability at important network nodes and ensures business stability
- B . The network service configuration on the active and standby ACs must be consistent
- C . In the process of establishing active and standby links between the AP and the active and standby AC, the link established first must be the active link
- D . The backup AC must always be powered on