Which of the following statements about VRRP fast switchover are true? (Choose three.)

When VRRP is used to track a BFD or EFM session, if a tracked BFD or EFM session status changes, the BFD or EFM module notifies the VRRP module of the change. After that, the VRRP module implements a rapid master/backupswitchover.

A VRRP backup group can monitor a peer BFD session, a link BFD session, and a normal BFD session at the same time. In addition, it can monitor the interface status.

When the status of a BFD session detected by a VRRP backup group changes, the master/slave switchover of routers in the VRRP backup group occurs by changing priorities of the master and slave routers.

When VRRP is used to track a BFD or EFM session, if a tracked BFD or EFM session status changes, the BFD or EFM module notifies the VRRP module of the change. After that, the VRRP module implements a rapid master/backupswitchover.

A VRRP backup group can monitor a peer BFD session, a link BFD session, and a normal BFD session at the same time. In addition, it can monitor the interface status.

When the status of a BFD session detected by a VRRP backup group changes, the master/slave switchover of routers in the VRRP backup group occurs by changing priorities of the master and slave routers.

A VRRP backup group can monitor several BFD sessions at the same time. The status changes of these BFD sessions affect each other.

Which of the following statements are correct regarding VRRP advertisement message?

VRRP has one kind of advertisement message which is sent by Master.

VRRP has two kinds of advertisement message, one is sent by Master, the other is sent by Slave.

VRRP has one kind of advertisement message which is sent by Master.

VRRP has one kind of advertisement message which is sent by Slave.

VRRP has two kinds of advertisement message, one is used for Master election, the other one is used in stable network after Master election.

Complex traffic classification can be performed based on which of the following packet information? (Choose three.)

Source and destination addresses

Source and destination port numbers

Source and destination addresses

Source and destination port numbers

Which of the following statements about VRRP are true? (Choose three.)

VRRP determines the roles of routers (master or backup) in a virtual router based on their priorities.

After a backup router in preemption mode receives a VRRP packet from the master router, it compares its priority with the priority carried in the VRRP packet.If its priority is higher than the priority of the master router, it preempts to bethe master router; if not, it remains in the backup state.

If two routers competing for the master router have the same priority, the router with a higher interface IP address becomes the master router.

VRRP determines the roles of routers (master or backup) in a virtual router based on their priorities.

If a backup router works in non-preemption mode and has a higher priority than the masterrouter, it will become the master router unless the master router fails.

After a backup router in preemption mode receives a VRRP packet from the master router, it compares its priority with the priority carried in the VRRP packet.If its priority is higher than the priority of the master router, it preempts to bethe master router; if not, it remains in the backup state.

If two routers competing for the master router have the same priority, the router with a higher interface IP address becomes the master router.

Which of the following statements about VRRP are true? (Choose three.)

VRRP is a redundancy protocol designed for a multicast- or broadcast-capable LAN such as the Ethernet. VRRP ensures that traffic is switched to another router when the next-hop router for a host on the LAN fails. This guarantees thereliability and non-stop forwarding of services.

Hosts on a network can communication with a virtual router without knowing any information about physical routers on the network.

A virtual router consists of a master router and several backup routers. The master router forwards packets. When the master router fails, a backup router takes over as the master router.

VRRP is a redundancy protocol designed for a multicast- or broadcast-capable LAN such as the Ethernet. VRRP ensures that traffic is switched to another router when the next-hop router for a host on the LAN fails. This guarantees thereliability and non-stop forwarding of services.

In VRRP, two virtual router ID and a virtual IP address need to be configured on a router to generate a virtual MAC address. A virtual router is formed.

Hosts on a network can communication with a virtual router without knowing any information about physical routers on the network.

A virtual router consists of a master router and several backup routers. The master router forwards packets. When the master router fails, a backup router takes over as the master router.

Based on classification rules, traffic classification can be divided into which of the following types? (Choose two.)

On-demand traffic classification

A company has four departments. Department A has 80 PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is used to divide subnets? (Choose two.)

Plan subnet 192.168.1.0/25 for DepartmentA. The range of host addresses is 1 to 126.

Plan subnet 192.168.1.160/27 for DepartmentC. The range of host addresses is 161 to 190.

Plan subnet 192.168.1.0/25 for DepartmentA. The range of host addresses is 1 to 126.

Plan subnet 192.168.1.128/27 for DepartmentB. The range of host addresses is 129 to 159.

Plan subnet 192.168.1.160/27 for DepartmentC. The range of host addresses is 161 to 190.

Plan subnet 192.168.1.192/27 for DepartmentD. The range of host addresses is 192 to 222.

Which statement about OSPF is false?

If a BDR fails, the DR will not take over as the BDR and awaits the fault recovery of the BDR. No new BDR will be elected.

The router with a higher Router Priority also has a higher DR election priority.

When two routers have the same Router Priorities, the router with a larger Router ID has a higher DR election priority.

If a DR fails, the BDR automatically takes over as the DR and a new BDR is elected.

If a BDR fails, the DR will not take over as the BDR and awaits the fault recovery of the BDR. No new BDR will be elected.

Which of the following statements about a neighbor state machine is true?

LSR packets can be sent in the Exchange state.

The Attempt state appears only on an NBMA network or a broadcast network.

The Attempt state appears only on an NBMA network or a P2MP network.

LSR packets can be sent in the Exchange state.

The Full state indicates that LSDB synchronization is complete. No LSDB information will be exchanged.

Which of the following statements are correct regarding Network LSA in OSPF network? (Choose two.)

Only the router which connects NBMA or Broadcast Network may generate Network LSA.

DR uses Network LSA to describe routers that have established adjacency relation with it in the network.

Network LSA is generated by ABR.

Only the router which connects NBMA or Broadcast Network may generate Network LSA.

DR uses Network LSA to describe routers that have established adjacency relation with it in the network.

Network LSA is flooded in the whole AS.

Which of the following statements about link aggregation are true? (Choose three.)

Link aggregation binds a group of physical interfaces together as a logical interface to increase the bandwidth and reliability.

The logical link formed by bundling multiple physical links together is called a link aggregation group (LAG) or a trunk.

Active and inactive interfaces exist in link aggregation. Active interfaces forward data, whereas inactive interfaces do not.

Link aggregation binds a group of physical interfaces together as a logical interface to increase the bandwidth and reliability.

Link aggregation complies with IEEE 802.3az.

The logical link formed by bundling multiple physical links together is called a link aggregation group (LAG) or a trunk.

Active and inactive interfaces exist in link aggregation. Active interfaces forward data, whereas inactive interfaces do not.

When links are switched in a Smart Link group, which of the following mechanisms can be used to refresh MAC and ARP entries? (Choose three.)

MAC and ARP entries are refreshed automatically with respect to traffic.

The Smart Link group uses a new link to send Flush packets.

MAC entries are refreshed after the aging time expires.

MAC and ARP entries are refreshed automatically with respect to traffic.

The Smart Link group uses a new link to send Flush packets.

MAC entries are refreshed after the aging time expires.

ARP entries are refreshed after the aging time expires

Which of the following statements about the BFD asynchronous mode are true? (Choose two.)

The local system regularly sends BFD control packets, and the remote system detects the BFD control packets sent from the local system.

If one system does not receive any BFD packets from its peer within a detection period, it advertises a session Down event.

The local system regularly sends BFD control packets, and the remote system detects the BFD control packets sent from the local system.

The local system detects the BFD control packets sent by itself.

If one system does not receive any BFD packets from its peer within a detection period, it advertises a session Down event.

Each system confirms its connections with other systems in a particular method. After a BFD session is set up, BFD control packets are no longer sent.

Which of the following statements are true? (Choose three.)

The neighbor state machine can transition from the Down state to the Init state.

The neighbor state machine can transition from the Init state to the Exstart state.

The neighbor state machine can transition from the Init state to the 2-Way state.

The neighbor state machine can transition from the Down state to the Exchage state.

The neighbor state machine can transition from the Down state to the Init state.

The neighbor state machine can transition from the Init state to the Exstart state.

The neighbor state machine can transition from the Init state to the 2-Way state.

Which of the following statements about the reliability requirement level are true? (Choose three.)

Faults seldom occur in the system software or hardware.

System functions are affected by faults but can rapidly recover.

System functions can be ensured by using redundancy design, switchover policy, and high success rate in switchover.

Faults seldom occur in the system software or hardware.

System functions are affected by faults.

System functions are affected by faults but can rapidly recover.

System functions can be ensured by using redundancy design, switchover policy, and high success rate in switchover.

Huawei H12-224 Practice Test 8 - Free Online Exam Prep & Questions

BFD (a fast detection technology) enabled on a device quickly identifies a fault and reports the fault to the appropriate protocol module after detecting a master/ slave switchover on the neighboring device. This causes the protocol module to quit the GR. As such, BFD and GR cannot be used together.

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Huawei H12-224 Practice Test 8

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