Free Access H3C.GB0-371-ENU.v2022-08-24.q110 Practice Test (Page 15)

Question 66

Which of the following statements about multicast VLAN is correct is

A.The VLAN that the host belongs to needs to be configured as a sub-VLAN of the multicast VLAN

B.Multicast VLAN needs to enable IGMP-Snooping function

C.The sub-VLANs of the multicast VLAN must also enable the IGMP-Snooping function

D.Multicast VLAN not only saves bandwidth, but also reduces the burden on Layer 3 devices

Question 67

A loop in the LAN may cause it.

A.MAC address learning error

B.Port duplex mode changes

C.Port rate changes

D.Broadcast storm

Question 68

XYZ company requires to build its network based on a modular enterprise network architecture. XYZ has a research and development base in Shenzhen and Xi'an, an office building in Beijing and Shanghai, offices with more than 50 people in 23 capital cities, and technicians in 23 provinces on business trips. Due to environmental and cost issues, some offices cannot access the headquarters through dedicated lines or packet-switched wide area network connections. According to these circumstances, the network module that XYZ company should have is _____.

A.VPN access

B.Large branch network

C.Remote|Distributed Office Network

D.Dedicated line, packet switching access

Question 69

The following statements about the registration process of PIM SM are correct (choose one or more)

A.Unlike the PUSH method of PIM DM, in PIM SM, the multicast source only starts to send multicast traffic when there are downstream receivers

B.After the RP normally receives the multicast forwarded traffic from the multicast source, it forwards the multicast to its downstream interface until the multicast receiver, forming an RPT from the RP to the multicast receiver along the way.

C.When a multicast source initially sends traffic, the connected DR will encapsulate several empty Register messages to register with the RP

D.After the RP receives the source registration message for the first time, it will send a (*, G) join message to the multicast source and establish (*, G) entries along the way

Question 70

After executing the display interface Ethernet 1/0/2 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/2
Ethernet1/0/2 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output

A.Port Ethernet1/0/2 only allows data from VLAN 1 and VLAN 10 to pass through

B.Data frames with VLAN20 tags will be discarded when they enter port Ethernet1/0/2

C.The only VLANs existing on the switch are VLAN1 and VLAN10

D.Data frames with VLAN1 tags will not be stripped off when they leave port Ethernet1/0/2

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Question 66

Question 67

Question 68

Question 69

Question 70

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