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A. RT1 inbound interface list: Port1

B. RT2 outbound interface list: Port2, Port3

C. RT1 outbound interface list: Port2, Port3

D. RT2 inbound interface list: Port1

A. Because different VLANs are allowed to pass, GigabitEthe1/0/1 and GigabitEthe1/0/2 cannot be added to the same aggregation group.

B. After link aggregation is configured on both SWA and SWB, if MSTP is enabled on switches SWA and SWB, GigabitEthe1/0/1 and MSTP port status of GigabitEthernet 1/0/2-

C. GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 can be added to the same aggregation group without changing the VLAN configuration allowed to pass.

D. Only when the configuration of GigabitE1/0/2 is changed to be consistent with that of GigabitEthe1/0/1, can the two be added to the same aggregation group.

A. NORMAL

B. SWITCH

C. CONTROLLER

D. FLOOD

A. The data frame with VLAN10 tag will not be stripped when it reaches Ethernet1/0/1

B. Data frames with VLAN1 tags will not be discarded when they enter Ethernet1/0/1

C. Port Ethernet1/0/1 is a Trunk port that only allows data frames from VLAN 10 to pass through.

D. When a data frame without a VLAN tag enters port Ethernet1/0/1, it will be tagged with VLAN10.

A. After the RP receives the multicast forwarding traffic from the multicast source, it forwards the traffic to its downstream interface until it reaches the multicast receiver, forming an RPT from the RP to the multicast receiver along the way.

B. After receiving the source registration message for the first time, RP will send a (*, G) join message to the multicast source and establish a (*, G) table entry along the way.

C. Unlike the PUSH method of PIM DM, in PIM SM, the multicast source starts sending multicast traffic only when there are downstream receivers.

D. When the multicast source initially sends traffic, the DR connected to it will encapsulate several empty Register messages to register with the RP

A. RRPP

B. STP

C. Smart Link

D. Link aggregation

A. SWA port EO/1 will not send TCN BPDU to SWC after link is interrupted

B. SWB's port EO/1 needs to wait for the default 30 seconds to enter the forwarding state, so the service recovery from PCB to PCA takes a total of 30 seconds by default.

C. SWB's port EO/1 enters the Forwarding state, triggering a topology change process, which shortens the MAC address aging time. Therefore, the service recovery from PCB to PCA takes a total of 45 seconds by default.

D. Since SWA does not enable STP, service recovery needs to wait for the MAC address of SWC to age, which takes 300 seconds by default.

A. 99.9%

B. 99.999%

C. 99.9999%

D. 99.99%

A. Hosts in different Sub VLANs are isolated at Layer 2, and can communicate at Layer 3 through the common proxy ARP technology of the Super VLAN interface.

B. The host IP addresses in different Sub VLANs belong to the same network segment, and they can communicate directly with each other through Layer 2 forwarding.

C. Hosts in different Sub VLANs are isolated at Layer 2, and can communicate at Layer 3 through the local proxy ARP technology of the Super VLAN interface.

D. The host IP addresses in different Sub VLANs belong to the same network segment, but due to the isolation of Sub VLAN, the Sub VLANs cannot communicate with each other.

A. It can correct the problem of multicast data packets arriving out of order

B. Data packets are received repeatedly

C. Best effort delivery, low latency application requirements cannot be guaranteed

D. No congestion control