Which statement about port isolation configuration is false?

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

Port isolation can be used for Layer 2 isolation.

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

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

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

Which statements about MUX VLAN are true? (Choose two.)

MUX VLAN contains a principal VLAN and subordinate VLANs. The subordinate VLANs are classified into subordinate separate VLANs and subordinate groupVLANs. The interfaces in the subordinate group VLAN can communicate witheach other.

The principal VLAN and subordinate VLANs can communicate.

MUX VLAN contains a principal VLAN and subordinate VLANs. The principal VLAN and subordinate VLANs cannot communicate.

MUX VLAN contains a principal VLAN and subordinate VLANs. The subordinate VLANs are classified into subordinate separate VLANs and subordinate groupVLANs. The interfaces in the subordinate group VLAN can communicate witheach other.

The principal VLAN and subordinate VLANs can communicate.

The interfaces of different subordinate separate VLANs can communicate with each other, but cannot communicate with the interfaces in the principal VLAN.

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?

VLAN allocation based on source IP addresses

VLAN allocation based on destination IP addresses

VLAN allocation based on source IP addresses and source MAC addresses

VLAN allocation based on destination MAC addresses and destination IP addresses

Which statement about the trunk interface is true?

"multiple" VLAN IDs can be set on a trunk interface. The VLAN IDs can be the same as or different from the PVID.

A trunk interface is always connected to hosts.

"multiple" VLAN IDs can be set on a trunk interface. The VLAN IDs can be the same as or different from the PVID.

The trunk interface cannot have a PVID.

If the trunk interface receives a packet with a VLAN not in the allowed VLAN list, the trunk interface broadcast the packet in the VLAN.

In RSTP, the port status can be discarding and learning. Which statements about the port status are true? (Choose two.)

The port in discarding or learning state does not forward data frames.

The port in discarding state does not learn MAC addresses.

The port in discarding or learning state does not forward data frames.

The port in discarding state does not learn MAC addresses.

The port in learning state does not learn MAC addresses.

Which statements about VLAN aggregation are true? (Choose three.)

"multiple" VLANs (broadcast domains) are on the same physical network; therefore, different VLANs belong to the same subnet.

VLAN aggregation can save IP addresses.

Only the super VLAN requires an IP address, but sub-VLANs do not need.

"multiple" VLANs (broadcast domains) are on the same physical network; therefore, different VLANs belong to the same subnet.

VLAN aggregation can save IP addresses.

Only the super VLAN requires an IP address, but sub-VLANs do not need.

The VLAN that is used to separate broadcast domains is called super VLAN.

Which statements are true? (Choose three.)

The routing ARP proxy allows the hosts on different physical networks of the same network segment to communicate with each other.

The intra-VLAN ARP proxy allows isolated users on a VLAN to communicate with each other.

The inter-VLAN ARP proxy allows hosts on different VLANs to communicate with each other through Layer 3.

The routing ARP proxy allows the hosts on different physical networks of the same network segment to communicate with each other.

The intra-VLAN ARP proxy allows isolated users on a VLAN to communicate with each other.

The inter-VLAN ARP proxy allows hosts on different VLANs to communicate with each other through Layer 3.

The inter-VLAN ARP proxy function can't be enabled on the VLANIF interface of the super VLAN to implement communication between sub-VLANs.

Which statement is true?

The principal VLAN must be configured before subordinate VLANs.

The MUX VLAN function takes effect without being enabled on an interface.

In MUX VLAN, a VLAN can function as both principal VLAN and subordinate VLAN.

The MUX VLAN can contain only one subordinate separate VLAN.

Which of the following statements about STP is not true?

STP can prevent temporary loss of connectivity

STP can manage redundant links.

STP can block redundant links to eliminate loops

STP can prevent temporary loss of connectivity

STP can make LAN switch operate normally in a network with loops

After an STP switch starts, it considers itself as the root switch. Which statements about BDPU parameter setting are true? (Choose three.)

The switch is the designated root.

The switch is the designated bridge.

The switch is the designated root.

The switch is the designated bridge.

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

The default VLAN of the interface is VLAN 2.

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.

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.

Which statements about the PVID on the access interface are true?

When receiving a packet without the VLAN tag, the interface adds the VLAN tag to the packet and sets the VID in the tag to the default VLAN ID.

When receiving a packet with a VLAN tag, the interface compares the VLAN ID in the tag with the default VLAN ID. If they are the same, the interface forwards the packets; otherwise, the interface discards the packets.

When the interface sends a packet with a VLAN tag that contains the default VLAN ID, the system removes the VLAN tag of the packet, and then forwards the packet.

When receiving a packet without the VLAN tag, the interface adds the VLAN tag to the packet and sets the VID in the tag to the default VLAN ID.

When receiving a packet with a VLAN tag, the interface compares the VLAN ID in the tag with the default VLAN ID. If they are the same, the interface forwards the packets; otherwise, the interface discards the packets.

When the interface sends a packet with a VLAN tag that contains the default VLAN ID, the system removes the VLAN tag of the packet, and then forwards the packet.

Which statement about ARP proxy is false?

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.

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.

ARP proxy is also called promiscuous ARP or ARP hack.

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

Which of the following statements about STP Designated Port is true?

Designated Port is responsible for forwarding packets to its connected network segments.

Each of the bridge can have one Designated Port only.

Designated Port is responsible for forwarding packets to its connected network segments.

The only path leading to the Root Bridge is through Designated Port.

Designated Port forwards the data packet from its corresponding switch to the Root Switch.

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

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

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 and deregistered on the interface.

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

VLANs cannot be manually created and registered on the interface, and cannot be dynamically registered or deregistered on the interface.

Which statements are false?

VLAN mapping allows only the private networks on the same VLAN to communicate with each other.

The VLAN mapping function is usually configured on the edge node of a public network.

The VLAN mapping function can save VLAN resources on a public network.

VLAN mapping allows private networks on different VLANs to communicate with each other over the ISP network.

VLAN mapping allows only the private networks on the same VLAN to communicate with each other.

After detecting a user with a new MAC address, the switch initiates an EAP authentication request. If the client does not respond and the MAC address bypass authentication is not configured, which statement is false?

All permissions of the user are prohibited.

If the client does not respond after the number of authentication requests reaches a specified value, the switch considers that the client software is not installed.

All permissions of the user are prohibited.

The user is allowed to access only the isolated zone.

Detection is initiated again after a period of time.

Which of the following statements about the link failure detection in STP protocol is not true?

The port sends Configuration BPDU at every Hello Time interval. When the link fails, Configuration BPDU cannot be sent out. As a result, this port can detect the link failure.

When network topology is stable, the Designated Port sends BPDU packet at every Hello Time interval.

When network topology is stable, BPDU packets will be transmitted periodically.

When the port does not receive new BPDU within a certain interval, the old configuration BPDU will time out and the link failure can be detected.

The port sends Configuration BPDU at every Hello Time interval. When the link fails, Configuration BPDU cannot be sent out. As a result, this port can detect the link failure.

Which statement about the hybrid interface is true?

A hybrid interface can be connected to host or network device.

A hybrid interface can only be connected to network device.

A hybrid interface can only be connected to host.

A hybrid interface can be connected to host or network device.

A hybrid interface cannot be configured with VLAN ID.

Which statements are true? (Choose three.)

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 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.

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

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 non-edge ports in forwarding state send TCNs to notify other switches of the topology change.

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 of the topology change.

All the non-edge ports in forwarding state send TCNs to notify other switches of the topology change.

Huawei H12-224 Practice Test 1 - Free Online Exam Prep & Questions

Which statements about QinQ are true? (Choose two.)

QinQ saves VLANs on the public network.

To avoid VLAN conflict, the customer must negotiate with the service provider before modifying the VLANs on its private network.

When the service provider upgrades the network, the configurations on the user network do not need to be modified.

All of the above

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