Which statements about OSPF packets are true? (Choose three.)

Hello packets can be sent after OSPF is enabled on an interface.

LS Request packets are sent only after an adjacency is established.

LS Update packets contain detailed LSA information for LSDB synchronization.

Hello packets can be sent after OSPF is enabled on an interface.

LS Request packets are sent only after an adjacency is established.

LS Update packets contain detailed LSA information for LSDB synchronization.

LS Update packets are sent only after an adjacency is established.

Which of the following statements about route summary are true? (Choose two.)

Advertise is the default parameter of the abr-summary command. If neither advertise nor not-advertise is specified in the abr-summary command, advertise is used.

The asbr-summary command is run in the OSPF view.

Advertise is the default parameter of the abr-summary command. If neither advertise nor not-advertise is specified in the abr-summary command, advertise is used.

Not-advertise is the default parameter of the abr-summary command. If neither advertise nor not-advertise is specified in the abr-summary command, not-advertise is used.

The abr-summary command is run in the OSPF view.

The asbr-summary command is run in the OSPF view.

Which of the following statements about a Smart Link group are true? (Choose three.)

Smart Link group consists of a maximum of two interfaces. Where there are two interfaces, one is an active interface, and the other a standby interface.

Of the two interfaces in a Smart Link group, one is active, and the other is standby.

When an active interface goes Down, the Smart Link group automatically blocks it and changes the status of the standby interface to active.

Smart Link group consists of a maximum of two interfaces. Where there are two interfaces, one is an active interface, and the other a standby interface.

Of the two interfaces in a Smart Link group, one is active, and the other is standby.

When an active interface goes Down, the Smart Link group automatically blocks it and changes the status of the standby interface to active.

When an active interface recovers, the standby interface is blocked and traffic is switched back to the active interface.

Which of the following statements are correct regarding how OSPF detects old and duplicate LSAs? (Choose three.)

The smaller the LS age, the more recent the LSA.

When router generates a new LSA at the first time, it will use 0x80000001 as the sequence number.

An LSA can be flushed from routing domain by setting its LSA age to Maxage.

The smaller the sequence number, the more recent the LSA.

The smaller the LS age, the more recent the LSA.

When router generates a new LSA at the first time, it will use 0x80000001 as the sequence number.

An LSA can be flushed from routing domain by setting its LSA age to Maxage.

Which of the following statements is false?

An AS-External-LSA describes how to reach an ASBR.

A Router-LSA is used to describe the local link status information of a router.

A Network-LSA is used to describe the link status information of a broadcast network or an NBMA network segment.

A virtual link is a virtual adjacency in the backbone area (Area 0).

An AS-External-LSA describes how to reach an ASBR.

Which of the following statements about BFD control packets are true? (Choose three.)

A BFD control packet is encapsulated in a UDP packet for transmission. Authentication fields in a BFD control packet are optional.

BFD detection is not available in VRP 5.7.

Echo packets use UDP destination port number 3784.

A BFD control packet is encapsulated in a UDP packet for transmission. Authentication fields in a BFD control packet are optional.

BFD detection is not available in VRP 5.7.

Echo packets use UDP destination port number 3784.

Echo packets use UDP destination port number 3785.

An OSPF neighbor relationship fails to be established and the display ospf error command output is as follows. Which of the following is the possible cause?

Network masks are inconsistent.

Authentication types are inconsistent.

Which statement about OSPF is false?

DD packets contain headers of all LSAs for periodic LSDB synchronization between OSPF neighbors.

Hello packets are used to discover and maintain neighbor relationships. On a broadcast network or an NBMA network, Hello packets can also be used to elect a DR and a BDR.

DD packets describe summary LSDB information by carrying LSA headers.

The intervals at which two routers send Hello packets must be consistent; otherwise, a neighbor relationship cannot be established between them.

DD packets contain headers of all LSAs for periodic LSDB synchronization between OSPF neighbors.

Which of the following statements about OSPF authentication are false? (Choose two.)

The ospf authentication-mode md5 1 huawei command and the ospf authentication-mode md5 1 plain huawei command have the same function.

If passwords are configured for both an area and an interface, the password configured for the area is used.

Entering a password in cipher text is allowed.

The ospf authentication-mode md5 1 huawei command and the ospf authentication-mode md5 1 plain huawei command have the same function.

If passwords are configured for both an area and an interface, the password configured for the area is used.

The ospf authentication-mode simple huawei command and the ospf authentication-mode simple plain Huawei command have the same function.

Which of the following rules should a network administrator obey when the network administrator uses the VLSM technology to plan subnets? (Choose three.)

A subnet can address a host or be further subnetted.

The Update message of a routing protocol in use must carry subnet mask information.

The summarized networks must have the same high-order bit.

A subnet is composed of all summarized routes.

A subnet can address a host or be further subnetted.

The Update message of a routing protocol in use must carry subnet mask information.

The summarized networks must have the same high-order bit.

An OSPF neighbor relationship fails to be established and the display ospf error command output is as follows. Which of the following is the possible cause?

Authentication types are inconsistent.

Network masks are inconsistent.

Authentication types are inconsistent.

Which of the following statements about LACP are true? (Choose two.)

A device enabled with LACP exchanges Link Aggregation Control Protocol Data Units (LACPDUs) with its peer.

Devices at both ends determine the active interface according to the interface priority of the active device.

A device enabled with LACP exchanges Link Aggregation Control Protocol Data Units (LACPDUs) with its peer.

Devices at both ends determine the active interface according to the interface priority of the active device.

An OSPF neighbor relationship fails to be established and the display ospf error command output is as follows. Which of the following is the possible cause?

Network masks are inconsistent.

Authentication types are inconsistent.

Which of the following statements about BFD Echo packets are true? (Choose two.)

The Echo packet format is not defined in BFD.

Echo packets use UDP destination port number 3785.

The Echo packet format is not defined in BFD.

The Echo packet format is defined in BFD.

Echo packets use UDP destination port number 3785.

Echo packets use UDP destination port number 3784.

An OSPF neighbor relationship fails to be established and the display ospf error command output is as follows. Which of the following is the possible cause?

Authentication passwords are inconsistent.

Network masks are inconsistent.

Authentication passwords are inconsistent.

Which of the following statements is false?

The external routing information carries a Tag label for transmitting additional information of the route. It is commonly used in a routing policy. The default value of the Tag label is 0.

An ABR maintains an LSDB for each area. There are many LSDBs on an ABR.

The metric of an ASE LSA can be specified when an external route is imported. The default value is 1.

The external routing information carries a Tag label for transmitting additional information of the route. It is commonly used in a routing policy. The default value of the Tag label is 0.

The Link State ID in an ASBR-Summary-LSA is the Router ID of the ASBR.

Which of the following statements about Flush packets in a Smart Link group are true? (Choose three.)

A Smart Link group sends Flush packets to instruct other devices to update the address table.

Flush packets use IEEE 802.3 encapsulation.

The destination MAC address of Flush packets is an unknown unicast address, which is used to distinguish protocols.

A Smart Link group sends Flush packets to instruct other devices to update the address table.

Flush packets use IEEE 802.3 encapsulation.

The destination MAC address of Flush packets is an unknown unicast address, which is used to distinguish protocols.

The destination MAC address of Flush packets is a special multicast address, which is used to distinguish protocols.

Which of the following statements about Stub areas is false?

The difference between a Stub area and a Totally Stubby area is that the Totally Stubby area cannot contain summary-LSAs.

The ABR in the Stub area generates a default route to guide forwarding of packets destined for other area.

A Transit area cannot be configured as a Stub area.

Any Stub area can be configured as a Totally Stubby area.

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

In manual load balancing mode, all active member interfaces forward data and perform load balancing.

In static LACP mode, the creation of the Eth-Trunk and the addition of member interfaces to the Eth-Trunk are performed manually. Compared with link aggregation in manual load balancing mode, active interfaces in static LACP modeare selected by sending LACP Data Units (LACPDUs).

In dynamic LACP mode, the creation of the Eth-Trunk, the addition of member interfaces, and the selection of active interfaces are performed based on LACP negotiation.

Link aggregation can be performed in manual load balancing or LACP mode. In manual loading balancing mode, LACP is enabled; in LACP mode, LACP is enabled too.

In manual load balancing mode, all active member interfaces forward data and perform load balancing.

In static LACP mode, the creation of the Eth-Trunk and the addition of member interfaces to the Eth-Trunk are performed manually. Compared with link aggregation in manual load balancing mode, active interfaces in static LACP modeare selected by sending LACP Data Units (LACPDUs).

In dynamic LACP mode, the creation of the Eth-Trunk, the addition of member interfaces, and the selection of active interfaces are performed based on LACP negotiation.

Huawei H12-224 Practice Test 10 - Free Online Exam Prep & Questions

By default, the cost of an OSPF interface is related to interface bandwidth. The algorithm for calculating the cost is: bandwidth-reference/bandwidth.

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Huawei H12-224 Practice Test 10

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