Huawei Certified Datacom Professional - Fast Certification Set 10

1.

Which of the following statements about a Smart Link group are true?

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

2.

Which of the following statements about Flush packets in a Smart Link group are true?

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

3.

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

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

4.

Which of the following statements about link aggregation are true?

link aggregation binds a group of physical interfaces together as a logical interface to increase the bandwidth and reliability. Link aggregation complies with IEFE 802. 3ah. The logical link formed by bundling multiple physical links together is called a link aggregation group (IAG)or atrunk. Active and inactive interfaces exist in link aggregation. Active interfaces forward data, whereas inactiveinterfaces do not.

5.

Which of the following statements about link aggregation are true?

link aggregation can be performed in manual load balancing or LACP mode. In manual loading balancing mode, LACP is disabled; in I.ACP mode, LACP is enabled. 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 or member interfaces to the Eth-Trunkare performed manually. Compared with link aggregation in manual load balancing mode, active interfaces in static LACP mode are selected by sending I.ACP Data Units (LACPDUs). In dynamic LACP mode, the creation of the Eth-Trunk, the addition of member interfaces, and the selectionof active interfaces are performed based on LACP negotiation.

6.

Which of the following statements about LACP are true?

It complies with IEEE 802. 3ad. A device enabled with LACP exchanges Link Aggregation Control Protocol Data Units (LACPDUs) with itspeer. Devices at both ends determine the active interface according to the interface priority of the active device.

7.

Which of the following reliability designs are related to routers?

Reliability design of the system and hardware Reliability design of the software Reliability test authentication Reliability design of the lP network

8.

Which of the following can speed up OSPF fast convergence?

Configuring dynamic BFD for OSPF Adjusting the interval at which OSPF calculation is performed Configuring the interval at which an LSA are retransmitted Configuring the maximum number of external LSAs in the LSDB

9.

When the GR Restarter performs the active/standby switchover, the neighbor performs which of the following operations when detecting that a TCP disconnection?

Keeping the routing tables of various address families advertised by the GR Restarter during negotiation, marking entries in these tables with stale tags, and starting a stale timer Starting a restart timer. Clearing all routing entries and forwarding entries related to the GR restarter if the GR restarter fails to re-establish the BGP connection with the neighbor after the restart timer expires. Remaining the neighbor relationship unchanged.

10.

RTA connected to a LAN by e0/0 whose IP address is 10. 1. 1. 251 and network Mask is 255. 255. 255. 0. Now create a virtual router with ID I and virtual IP address 10.1.1.254 0n RTA. Which of the following commands are correct?

[RTA-Ethernet0/0]vrrp vrid l virtual-ip 10. 1. 1. 254 [RTA]vrrp vrid I virtual-ip 10. 1. 1. 254 ERTA-Ethernet0/0]vrrp vrid l virtual-ip 10. 1. 1. 254 mask 255. 255. 255. 0 [RTA]vrrp vrid l virtual-ip 10. 1. 1. 254 mask 255. 255. 255. 0

Huawei Certified Datacom Professional - Fast Certification Set 10

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Huawei Certified Datacom Professional - Fast Certification Set 10

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