(single) Huawei MXU devices can support three power supply modes. Which of the following power supply modes is not supported?
A. AC 220V power supply
B. DC-60V power supply
C. DC-48V power supply
D. DC-12V power supply
A total of 100 multicast users on the MA5600 are watching 20 multicast programs. Assuming that each multicast program occupies 2 Mbit/s of bandwidth, how many multicast traffic does the MA5600 uplink port currently have?
A. 50M bit/s
B. 90M bit/s
C. 200M bit/s
D. 100M bit/s
The (single) SIP message consists of three parts. Which of the following does not belong to the SIP message content?
A. First line
B. Message header
C. Message type
D. Text
(single) Which of the following does not belong to the MA5600T/MA5680T ESC environmental monitoring system component?
A. External sensor
B. PVMB
C. ESC environment monitoring box
D. EMS Network Management Center
(single) The correct installation method is the prerequisite for ensuring the normal operation of the ONU. Which of the following is the wrong installation method?
A. Connect the ground wire to the ground bar
B. Casing protection should be used at the customer line stripping
C. When the fiber is not in use, it should be covered with a fiber dust cap.
D. Signal lines and power lines should be placed in a centralized manner
(single) Which application scenario is Huawei HG8245 currently suitable for?
A. Outdoor type
B. SFU home user type
C. SBU commercial user type
D. MINI-DSLAM
(multiple) UA5000 V100R019 supports upgrade continuous business, database internal upgrade, upgrade steps include?
A. Export the old database file
B. Upgrade to the new version of the database file
C. Restart the device
D. Load the upgrade package
(Radio) When deploying GPON Type C single attribution protection, the following description is correct.
A. The branch fiber breaks, and the state of the OLT's work port becomes standbY
B. Two ports protected by the OLT side cannot send and receive data at the same time
C. When the olt uplink fails, a protection reversal can be triggered
D. The service configuration of ONU access is completely identical to the configuration before protection
(Multiple choice) Which of the following measures can be adopted by GPON in terms of traffic control
A. Gem-car
B. gem mapping
C. flow-car
D. tcontcar
The (radio) OLT is configured for V2 on the IGMP version when the OLT receives igmr v3 forwarded from on-T What kind of treatment will be done after joining the message
A. Normal forwarding
B. Send a specific group query message
C. Send a universal group query message
D. Discard directly