Huawei H12-261 HCIE-Routing&Switching Exam Practice Test Instant Access

Question 1

Typically, users within a VPN only communicate with other users in the same VPN. They cannot communicate with users on the Internet or access the Internet. Many VPN sites, however, may need to access the Internet. Which of the following statements regarding interconnection between the VPN and the Internet are true?

AThe interconnection between the VPN and the Internet can be implemented on the PE. However, the implementation is complex and may bring security risks. The PE is vulnerable to DoS attacks from the Internet.

BDirectly connect the CE to the Internet on the user side. Each user site can independently access the Internet. That is, a default route destined for the Internet is configured on the CE of each site.

CConfigure the PE to send a default route destined for the Internet to the CE, and add a default route destined for the Internet gateway to the VPN instance routing table.

DIsolating public network routes and VPN routes on the user side is simple, secure, and reliable.

Answer : A, C, D

Question 2

On a switch with factory default settings, its MAC address table is empty. Host A connected to the switch sends the first unicast data frame. What operation will the switch perform after receiving the data frame?

AThe switch discards the data frame

BThe switch records the source MAC address of the data frame and floods the data frame out of all interfaces except the one it received the frame

CThe switch buffers the data frame and forwards the data frame after the destination host sends a data frame

DThe switch forwards the data frame out through an interface based on the destination MAC address of the data frame

Answer : B

Question 3

The precedence field in VLAN (802.1Q) data encapsulation has six bits.

ATRUE

BFALSE

Answer : B

Question 4

In a BGP EVPN distributed gateway scenario, which of the following packet types is required to implement VM migration?

AType 1

BType 2

CType 3

DType 5

EType 4

Answer : B

Question 5

Which of the following statements regarding VRRP is true?

ABoth VRRPv2 and VRRPv3 support authentication

BVRRPv3 does not support authentication, whereas VRRPv2 supports authentication

CThe VRRP priority of the master IP address owner is 255. Therefore, the priority can be a value in the range from 0 to 254.

DVRRPv2 only applies to an IPv4 network, and VRRPv3 applies only to an IPv6 network

Answer : B, C, D

Question 6

A network administrator plans to migrate IGMPv2 to IGMPv3 on the multicast network. What advantages does IGMPv3 have over IGMPv2?

AIGMPv3 deletes suppression of IGMPv3 Membership Report messages

BIGMPv3 deletes the function of matching all sources through wildcard belong to specific multicast group

CIGMPv3 enables a host to join a specified multicast group that excludes a specified multicast source

DIGMPv3 adds Request-to-Send and Clear-to-Send messages between source and local IGMP queries

EIGMPv3 enables a host to join a specified multicast group that includes a specified multicast source

Answer : E

Question 7

In inter-AS VPN Option B mode, two Autonomous System Boundary Routers (ASBRs) need to exchange public network LSP labels once during packet forwarding.

ATRUE

BFALSE

Answer : A

Huawei H12-261 HCIE-Routing & Switching (Written) V3.0 HCIE-Routing&Switching Exam Practice Test