GB0-371-ENU 무료 덤프문제 온라인 액세스

Regarding the POE system, ______ is correct.

• A.The POE system includes two parts: PSE equipment and PD equipment, where PD is the power supply device, and PSE is the power receiving device
• B.Usually PSE can support two methods of mid-span and end-span, PD can only support one
• C.POE usually uses min-span and end-span power supply methods
• D.The voltage provided by the POE power supply is 48V, and the output power does not exceed 13W

In the switching network as shown in the figure, VLAN 10 is set as Super VLAN on the switch SWA, VLAN 2 and VLAN 3 are Sub VLANs of VLAN 10, Port Ethernet1/0/3 is a Trunk port, PVID is VLAN 1, allowing all VLANs to pass ; Create VLAN2~VLAN20 on the switch SWB, port Ethernet1/0/4 as Trunk port, PVID as VLAN1, allowing all VLANs to pass. After setting the IP address of each device as shown in the figure, you can judge (choose one or more item)

• A.PCC can communicate with SWA
• B.PCC can communicate with SWB
• C.PCC can communicate with PCB
• D.SWA can communicate with SWB

In the switching network as shown in the figure, VLAN10 is set as Isolate-user-vlan on the switch SWA, VLAN2 and VLAN3 are the Secondary VLAN of VLAN 10; VLAN2? VLAN20 is created on the switch SWB, and VLAN20 is set as Isolate-user-vlan , VLAN4 is the Secondary VLAN of VLAN20. After setting the IP address of each device as shown in the figure, which of the following statements is correct (choose one or more)

• A.SWB packets from GigabitEthernet1/0/3 of SWA come out of GigabitEthem1/0/1 without VLAN
• B.The PCA packet enters from the GigabitEthe1/0/1 port of SWA, and the VLAN Tag carried after it exits the GigabitEthem1/0/3 port is VLAN 10
• C.The PCA packet comes out of the GigabitEthem1/0/3 port of SWA and enters the GigabitEthem1/0/4 port of SWB without VLAN tag
• D.When SWB accesses PCA, after the packet comes out of the GigabitEthem1/0/4 port of SWB, the VLAN Tag carried is VLAN20

For the multicast distribution tree model, the correct statement below is ______.

• A.Different multicast sources take themselves as the root and independently establish RPTs
• B.Each router on the SPT will maintain (S, G) entries
• C.Multicast distribution tree models are divided into SPT and RPT
• D.Each router on the RPT will maintain (*, G) entries

The following are core layer functions (choose one or more)

• A.High-speed packet switching
• B.Possess a large number of interfaces for connecting with end user computers
• C.Access security control
• D.Necessary routing strategy