H12-891_V1.0 Exam Dumps - HCIE-Datacom V1.0

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Question # 81

What messages can Huawei equipment suppress traffic for?

Multicast

Known unicast

Broadcast

Unknown unicast

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Question # 82

Two routers connected through a firewall cannot establish a BGP neighbor relationship. What causes it?

EBGP Multi-hop is not configured

The firewall did not release IP protocol number 89

Firewalls that do not have an open UDP port number of 179

BGP neighbors must form a Layer 2 adjacency

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Question # 83

Which of the following parameters should be modified to re-establish the is-IS neighbor relationship?

Modify the Cost value of the IS-IS interface

Modify the send interval for the IlH of the IS-IS interface

Modify the Level of the IS-IS interface

Modify the IP address of the IS-IS interface

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Question # 84

What is the field that the IPv6 header has similar to the IPv4 header "Type of Service" field?

Version

Flow Label

Next Header

Traffic Class

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Question # 85

Although the STP protocol can solve the loop problem, it affects the quality of user communication due to the slow convergence of the network topology. RSTP has made many improvements to STP, which of the following is not an improvement of RSTP to STP?

In addition to the 3 port states, RSTP vice adds 2 new port roles

Non-root switches running RSTP send configuration BPDUs at intervals specified by Hello Timer, a behavior that is entirely autonomous for each device

RSTP port state specification is divided according to whether the port forwards user traffic and learns the MAC address, reducing the original 5 port states to 3

If a port does not receive a configuration BPDU sent by the upstream device for 4 consecutive Hello Time, the device considers the negotiation with this neighbor to fail

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Question # 86

The advantages of building a campus network using stacking, clustering technology include which of the following?( Multi-select)

Improved network equipment and link utilization

It can effectively reduce network power consumption

Business disruption time is greatly reduced

Simplifies network management and reduces the complexity of network deployment planning

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Question # 87

Users hope to be able to make the router forward and select messages according to their own defined policies on the basis of traditional route forwarding, and can adopt policy routing, and the following description of policy routing is incorrect

Policy Routing can set the next hop IP address

Policy Routing cannot be set in the next statement DSCP

Policy Routing cannot be used to set IP precedence

Policy-based routing can be used to match message lengths

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Question # 88

What is the following description of MPLS incorrect?

The length of the MPLS tag is 20 to 20 for packet forwarding.

The tag space range of dynamic signaling protocols such as LDP, M P-BGP is 16 to 1023

When using the TTL processing method of Pipe mode, the IP packet transmits the TTL of the IP packet over the IPLS network. The value is only minus 1 for the MPLS in and out nodes.

MPLS supports multi-layer label nesting, and the S bit value of the innermost label is 1.

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