GB0-372-ENU試験無料問題集「H3CSE-RS-SW 認定」

A. PCA and PCC can communicate with each other

B. The configuration command is incorrect

C. The three PCs cannot communicate with each other

D. PCA and PCB can communicate with each other

E. PCB and PCC can communicate directly

A. Before joining SWD, after STP convergence, SWC will receive configuration BPDUs from both EO/1 and EO/2

B. After STP converges, SWD is connected to the network through the dotted link 1 in the figure. SWD will first send a configuration BPDU with itself as the root. After the longest Hello Time, SWC will send a configuration BPDU with SWA as the root to SWD.

C. Before joining SWD, after STP convergence, SWB's port EO/2 is the alternate port

D. After STP converges, connect SWD to the network through the dotted link 1 in the figure. SWD will first send a configuration BPDU with itself as the root, and SWB will immediately respond with a configuration BPDU with SWA as the root.

A. Compared with STP, STP defines a fast switch mechanism for designated ports, which allows the designated port to quickly enter the forwarding state without waiting for twice the Forward Delay time.

B. Compared with STP, STP defines a fast root port switching mechanism, which allows the Alternate to quickly become the new root port.

C. If STP wants to shorten the convergence time, it can only configure a smaller ForwardDelay time, but this may affect the stability of the network.

D. Compared with STP, RSTP defines edge ports, which can make the ports connected to the i machine quickly enter the forwarding state

A. The six trunk ports connecting the three switches do not have a discarding port in instance0.

B. The six trunk ports interconnecting the three switches have only one discarding port in instance0.

C. The six trunk ports connecting the three switches do not have a discarding port in instance1.

D. The six trunk ports interconnecting the three switches have only one discarding port in instance1.

A. Upstream neighbors of (S, G) or (*:G) entries

B. Aging time of (S, G) or (*:G) entries

C. Incoming interface of the (S, G) or (*, G) entry

D. Downstream interface of (S, G) or (*, G) entry

A. Configure BPDU protection on switches in the network

B. For illegal access to network resources, ACL can be deployed to perform access control

C. Campus network accesses the Internet through NAT translation

D. Deploy IPSec VPN to build a private network

A. display evpn route arp

B. display 12vpn arp

C. display evpn arp

D. display arp

A. Graft messages are sent in unicast mode, and the destination address is the IP address of the RPF neighbor.

B. The router that receives the Graft message will reply with a Graft-ACK message, the destination address of which is 224.0.0.13

C. When a multicast receiver appears on a pruned router, the router does not have to wait for the next flood to forward the multicast data to the receiver.

D. The router will add the interface that receives the Graft message to the outbound interface list of the multicast entry

E. The pruned router receives the IGMP Report message sent by the receiver and sends a Graft message to the RPF neighbor

A. Voice VLAN

B. Sub VLAN

C. Guest VLAN

D. Secondary VLAN

E. Super VLAN

F. Private VLAN

A. 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.

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

C. 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.

D. 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.

A. User View

B. VLAN view

C. IGMP view

D. System global view

A. The Discarding port in RSTP is like the Blocking port in STP. When the port is in the Discarding state, it will not send BPDU, but will receive BPDU.

B. There are three states for ports in RSTP. After a port enters the Learning state, it starts to send and receive BPDUs and determines the port role.

C. The definitions of root port and designated port in RSTP are the same as those in STP.

D. In RSTP, the Alternate port is used to back up the root port, and the Backup port is used to back up the designated port.

A. Each module can be planned and deployed separately. Network functions can be added or removed by adding or removing modules, which is conducive to building complex networks.

B. Allow different application functions or application systems to share data, resources and capabilities and participate in business processes

C. Allows dynamic invocation of IT resources through open interfaces to achieve a standard, compatible, secure, intelligent and manageable IT application environment

D. It replaces the traditional hierarchical network model, making it easier to plan and deploy the network.

A. PCA's message comes out from SWA's GigabitEthem1/0/3 port and enters SWB's GigabitEthe1/0/3 port. The VLAN tag it carries is VLAN2.

B. SWB's message enters from SWA's GigabitEthem1/0/3 port, and the VLAN tag it carries after exiting from GigabitEthem1/0/1 port is VLAN2

C. When SWB accesses PCA, the VLAN tag of the message from SWB's GigabitEthem1/0/4 is VLAN 1.

D. PCA's message enters from SWA's GigabitEther1/0/1 port and exits from GigabitEther1/0/3 port without VLAN Tag.