Huawei Certified Datacom Professional - Fast Certification Set 20

1.

Which statement about the following configuration is true? port link-type hybrid
port hybrid pvid vlan 2
port hybrid untagged vlan 2
port hybrid ragged vlan 3

The default VLAV of the interface is VLAN 2. The port hybrid tagged vlan 3 command configures the VLAN for a hybrid interface. Frames in the VLANthen pass through the hybrid interface in untagged mode. The port hybrid untagged vlan 2 command configures the VLAN for a hybrid interface.Frames in the VLAN then pass through the hybrid interface in tagged mode. All of the above.

2.

Which statements about VLAN mapping are true? ( )

When sending a frame from the local VLAN, the switch replaces the VLAN tag in the frame with another VLAN tag. When receiving a frame from another VLAN, the switch replaces the VLAN tag of the frame with the localVLAN tag. When an interface receives a frame from another VLAN, it does not replace the VLAN tag of the frame. Theinterface replaces the VLAN tag of the frame with another VLAN tag only when it sends a frame. The interface replaces the VLAN tag of only the Frame received from another VIJAN but does not changethe VLAN tag of the frame it sends out.

3.

Which statements are true? ( )

Port isolation is a mechanism that controls the access between switch interfaces. Port isolation is an isolation mechanism at the physical layer. Port isolation prevents the computers connected to different ports from accessing each other. Port isolation can be configured based on VLANs.

4.

When the GVRP registration mode is FORBIDDEN, no VLAN can be created or registered on the interface. In addition, which VLANs are deregistered on the interface?

All VLANs except VLAN 1 All VLANs except VLAN 4090 All VLANs A1l VLANs except the VLAN specified by the user

5.

Which are contained in a GARP participant?

GARP Application GARP Information Propagation (GIP) GARP Information Declaration (GID) Interface LLC

6.

When the GVRP registration mode is FIXED, which statement is true?

VLANs can be manually created and registered on the interface, and can also be dynamically registered
and deregistered on the interface. VLANs cannot be manually created and registered on the interface, but can be dynamically registered andderegistered on the interface. VLANs can be manually created and registered on the interface, but cannot be dynamically registered orderegistered on the interface. VLANs cannot be manually created and registered on the interface, and cannot be dynamically registered orderegistered on the interface.

7.

Which statements about the relationship between GVRP and GARP are true?

GVRP, GARP, and GVIRP are the standards of the same type. GVRP and GARP are defined by IEEE 802.ip. GVRP is based on GARP, and is an application of GARP. GVRP is a new definition of GARP.

8.

Length of PDU Data length between DSAP and PDU Data length between DA and PDU Data length between DA and FCS

9.

The following is the output information of the display command on an STP port.
What is the port role?
[swc]display stp interface Ethernet
0/20 Port 20 (Ethornct0/20) of bridge is Forwarding Port spanning tree protocol: enabled Port role: Root Port
Port path cost: 200 Port priority: 128 Designated bridge ID(Pri.MAC) : 4096. OOeO-fc41-4209 The Port is a non-edged port Connected to a point-to-point LAN segment Maximum transmission limit is 3 Packets / hello time Times: Hello Time 2 sec, Max Age 20 sec Forward Delay lo sec, Message Age 0 BPDU sent: 4 TC\: 2,
RST:
2, Config BPDU: 0 BPDU received:
806 TCN: 0, RST: 11, Config BPDU: 795

Root port Designated port Alternate port None of the above.

10.

On the RSTP network as shown in the figure, what RSTP operations will occur after the E1 port of SWB fails?

SWB deletes the MAC address entries with the E1 port as the destination interface. The spanning tree is recalculated and the E2 port is elected as the new root port. All the interfaces in forwarding state send topology change notifications (TCNs) to notify other switches ofthe topology change. All the non-edge ports in forwarding state send TCNs to notify other switches of the topology change.

Huawei Certified Datacom Professional - Fast Certification Set 20

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Huawei Certified Datacom Professional - Fast Certification Set 20

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