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Huawei H12-891 Practice Test - Questions Answers, Page 10

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Question 91

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In cross-domain VPN-OptionB packet forwarding, two ASBRs exchange the same LSP tags once.

True
True
False
False
Suggested answer: B
asked 18/09/2024
SoftwareONE Deutschland GmbH
37 questions

Question 92

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In the city, that is, mpLS BGPVPN network, when the packet enters the public network forwarding, it will be encapsulated with two layers of MPLS tags, the following description of the two layers of tags, the error is ?

Private network tags are carried and distributed by MP-BGP when routing, and public network tags are distributed by the LDP protocol.
Private network tags are carried and distributed by MP-BGP when routing, and public network tags are distributed by the LDP protocol.
MPLS BGPVPN uses two layers of tags: public labels (also known as outer labels) and private network labels (also known as inner labels).
MPLS BGPVPN uses two layers of tags: public labels (also known as outer labels) and private network labels (also known as inner labels).
By default, the router assigns the same tag value to all VPNv4 routes destined for the peer
By default, the router assigns the same tag value to all VPNv4 routes destined for the peer
The egress PE uses the inner tag when determining which egress CE the message should be sent to.
The egress PE uses the inner tag when determining which egress CE the message should be sent to.
Suggested answer: C
asked 18/09/2024
Fernando Pereira dos Santos
44 questions

Question 93

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The following description of the LDPLSP establishment process is correct?

By default, LSRs are for the same FEC, and the received tag mappings can only come from the optimal next hop, not from the non-optimal next hop.
By default, LSRs are for the same FEC, and the received tag mappings can only come from the optimal next hop, not from the non-optimal next hop.
When a network topology change causes the next hop neighbor to change, the free label keep method is used. LSR can quickly rebuild the LSP by directly using the labels sent by the original nonoptimal next-hop neighbor. Liberal needs more memory and tag space.
When a network topology change causes the next hop neighbor to change, the free label keep method is used. LSR can quickly rebuild the LSP by directly using the labels sent by the original nonoptimal next-hop neighbor. Liberal needs more memory and tag space.
In the DoD mode of label publishing, for a specific FEC, the LSR does not need to obtain a label request message from upstream to distribute the label.
In the DoD mode of label publishing, for a specific FEC, the LSR does not need to obtain a label request message from upstream to distribute the label.
The process of establishing a D. LSP is actually to bind the FEC to the tag and advertise this binding to the LSP upstream LSR process.
The process of establishing a D. LSP is actually to bind the FEC to the tag and advertise this binding to the LSP upstream LSR process.
Suggested answer: B, D
asked 18/09/2024
Alexey Chernikov
34 questions

Question 94

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What improvements have been made to the IGMPv2 protocol compared to IGMPv1? ( Multiple Choice)

Added maximum response time field
Added maximum response time field
Added high group messages
Added high group messages
Added specific group query message
Added specific group query message
Added a specific source group query packet
Added a specific source group query packet
Suggested answer: A, B, C
asked 18/09/2024
ali ghoubali
43 questions

Question 95

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Which of the following attacks are DoS (Denial of servioe) attacks?( Multiple choice question)

Single packet attack
Single packet attack
Source P address spoofing attack
Source P address spoofing attack
Man-in-the-middle attack
Man-in-the-middle attack
Flood Attack
Flood Attack
Suggested answer: A, D
asked 18/09/2024
Sérgio Filipe Soares
50 questions

Question 96

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Configure queue-based traffic shaping, which defaults to tailing if the queue length exceeds the cache size

True
True
False
False
Suggested answer: A
asked 18/09/2024
Sankalp Wadiwa
40 questions

Question 97

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For Layer 2 VPN technology, the following statement is correct?( Multiple choice questions).

VPLS is a widely used technology in the live network, which can provide transparent transmission of three-layer messages and achieve multi-point access.
VPLS is a widely used technology in the live network, which can provide transparent transmission of three-layer messages and achieve multi-point access.
The VPLS configuration is complex and the Layer 2 network transmits BUM packets.
The VPLS configuration is complex and the Layer 2 network transmits BUM packets.
BGP EVPN supports features such as tenant isolation, Multi-homing , and broadcast suppression.
BGP EVPN supports features such as tenant isolation, Multi-homing , and broadcast suppression.
BGP EVPN addresses issues such as MAC address drift and multi-tenancy that VPLS cannot support.
BGP EVPN addresses issues such as MAC address drift and multi-tenancy that VPLS cannot support.
Suggested answer: B, C
asked 18/09/2024
Fabrizio Leo
49 questions

Question 98

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In the forwarding table of the switch, a MAC address can correspond to only one outlet at a time

True
True
False
False
Suggested answer: B
asked 18/09/2024
Ivan Dujmic
55 questions

Question 99

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How do.8021w and 8021D handle BPDUs?( Single choice questions).

The 8021D bridge only forwards BPDU packets received from the root bridge
The 8021D bridge only forwards BPDU packets received from the root bridge
8021D bridges do not forward BPDU packets
8021D bridges do not forward BPDU packets
The 8021w bridge only forwards BPDU packets received from the root bridge
The 8021w bridge only forwards BPDU packets received from the root bridge
8021w Bridge does not forward BPDU packets
8021w Bridge does not forward BPDU packets
Suggested answer: A
asked 18/09/2024
lawrence Ajibolade
55 questions

Question 100

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Which of the following scenarios send free ARP messages?( Multiple choice questions).

After the VRRP protocol master and standby role election is completed
After the VRRP protocol master and standby role election is completed
The DHCP client receives an acknowledgment message from the server after it sends it
The DHCP client receives an acknowledgment message from the server after it sends it
When a new host configured with an IP address is connected to the network
When a new host configured with an IP address is connected to the network
When a host connected to the switch issues a Ping message.
When a host connected to the switch issues a Ping message.
Suggested answer: A, B, C
asked 18/09/2024
Steve Jenkins-Thorkildson
49 questions
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