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Huawei H12-224 Exam - HCNP-R&S Fast Track (Huawei Certified Network Professional - Routing & Switching Fast Track)

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Questions & Answers for Huawei H12-224

Showing 1-15 of 629 Questions

Question #1 - Topic 1

The STP protocol can prevent broadcast storms caused by loops on the Layer 2 network.

A. True

B. False

Question #2 - Topic 1

Which statement about port isolation configuration is false?

A. Port isolation can be used for Layer 2 isolation.

B. In port isolation mode, ports are isolated at Layer 2 but can communicate at Layer 3 by default.

C. Before the port isolation function takes effect on an interface, the port isolation function must be enabled first.

D. The port-isolate enable command can run in the system view.

Question #3 - Topic 1

Which statements about VLAN mapping are true?(Select 2 Answers)

A. When sending a frame from the local VLAN, the switch replaces the VLAN tag in the frame with another VLAN tag.

B. When receiving a frame from another VLAN, the switch replaces the VLAN tag of the frame with the local VLAN tag.

C. When an interface receives a frame from another VLAN, it does not replace the VLAN tag of the frame. The interface replaces the VLAN tag of the frame with another VLAN tag only when it sends a frame.

D. The interface replaces the VLAN tag of only the frame received from another VLAN, but does not change the VLAN tag of the frame it sends out.

Question #4 - Topic 1

STP elects ( )

A. One bridge as the Root Bridge and another one as the Backup Root Bridge

B. One bridge as the Root Bridge

C. Two bridges as the Root Bridge

D. One Designated Bridge

Question #5 - Topic 1


As shown in the figure, when the STP network runs properly, which device does the
designated port of LANC reside?

A. SWA

B. SWB

C. SWC

D. None of the above

Question #6 - Topic 1

Which problems on a single spanning tree network can be solved by MSTP? (Select 3
Answers)

A. Traffic forwarding paths in some VLANs are faulty.

B. Traffic cannot be load balanced.

C. The second best path problem may occur.

D. The network reliability cannot be improved.

Question #7 - Topic 1

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

A. The default VLAN of the interface is VLAN 2.

B. The port hybrid tagged vlan 3 command configures the VLAN for a hybrid interface. Frames in the VLAN then pass through the hybrid interface in untagged mode.

C. 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.

D. All of the above.

Question #8 - Topic 1

Which statement about ARP proxy is false?

A. The ARP proxy, namely, the gateway, sends ARP request for the host. The MAC address in the ARP request packet is the MAC address of the host.

B. The ARP proxy, namely, the gateway, sends ARP request for the host. The MAC address in the ARP request packet is the MAC address of its own interface.

C. ARP proxy is also called promiscuous ARP or ARP hack.

D. The ARP proxy allows the hosts on the networks with the same network ID to communicate with each other.

Question #9 - Topic 1

On an RSTP network, when an edge port is in protected state, what operation is performed
after the edge port receives BPDUs?

A. The edge port forwards BPDUs.

B. The edge port discards BPDUs.

C. The edge port is shut down.

D. The edge port obtains required information from BPDUs.

Question #10 - Topic 1

A switching network has been enabled with STP protocol. To provide fast access speed to
the file server for most of the users, the switch that is directly connected with file server is
configured as the root bridge.

A. True

B. False

Question #11 - Topic 1

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?

A. All VLANs except VLAN 1

B. All VLANs except VLAN 4095

C. All VLANs

D. All VLANs except the VLAN specified by the user

Question #12 - Topic 1

If the customer requires high mobility and easy management, the staff of different
departments can be added to different VLANs. In addition, these VLANs are located on
different IP subnets. Which VLAN allocation mode can meet these requirements?

A. VLAN allocation based on source IP addresses

B. VLAN allocation based on destination IP addresses

C. VLAN allocation based on source IP addresses and source MAC addresses

D. VLAN allocation based on destination MAC addresses and destination IP addresses

Question #13 - Topic 1

GARP involves various messages. Besides JoinIn message and Leave message, which
are also the GARP messages? (Select 3 Answers)

A. Notice

B. Empty

C. JoinEmpty

D. LeaveAll

Question #14 - Topic 1

Which statement about MUX VLAN is false?

A. Principal VLAN

B. Subordinate VLAN

C. Subordinate group VLAN

D. Guest VLAN

Question #15 - Topic 1

Which VLAN assignment methods are supported by the Huawei S9300? (Select 3
Answers)

A. Assigning VLANs based on Layer 7 protocols

B. Assigning VLANs based on protocols

C. Assigning VLANs based on IP subnets

D. Assigning VLANs based on MAC addresses

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