Regarding BGP4+, the following statement is correct?

BGP4+ carries the next hop address of the route through the Network Address of Next Hop in the NLRI properties MP_REACH

BGP4+ carries the prefix and mask length of the IPv6 route through the NLRI attribute

BGP4+ carries the next hop address of the route through the Network Address of Next Hop in the NLRI properties MP_REACH

BGP4+ carries the next hop address of the IPv6 route through the NEXT_HOP attribute

The NEXT_HOP attribute does not exist in BGP4+

BGP4+ carries the prefix and mask length of the IPv6 route through the NLRI attribute

What descriptions of the OSPF protocol are correct?

The cost value of the second type of external route is only the AS external cost value, ignoring the AS internal cost value

AS-External-LSA does not belong in any region

AS-External-LSA describes the router's path to ASBR

The cost value of the second type of external route is only the AS external cost value, ignoring the AS internal cost value

AS-External-LSA does not belong in any region

AS-External-LSA describes the path to the as outside of the route, and the scope of the flood is the AS outside

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

Modify the Level of the IS-IS interface

Modify the IP address of the IS-IS interface

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

Regarding BGP's recognized arbitrary attributes, which of the following descriptions is correct?

All BGP routers must be recognized

There is no requirement to be present in the Update message, and you can decide whether to add it to the Update message on a case-by-case basis

must be passed between BGP neighbors

All BGP routers must be recognized

There is no requirement to be present in the Update message, and you can decide whether to add it to the Update message on a case-by-case basis

The BGP router cannot recognize the

The following link-LSA for OSPFv3 is correct?

Contains both the link-local address of the interface and all IPv6 prefixes on the interface.

Contains both the link-local address of this interface and all IPV6 prefixes of the same area on this router.

Contains both the link-local address of the interface and all IPv6 prefixes on the interface.

?Link-LSA ???Prefix ?Prefixoptions ???Ox00,?? Prefix ????IPv6??????

The Option field exists in the header of the LSA, not in the data area of the Link-LSA

The duplicate address detection feature for NDP in the following description is incorrect?

Duplicate address detection is implemented via RS and RA messages

IPv6 unicast address is called a tentative address after it is assigned to an interface and before it is detected by duplicate addresses

Duplicate address detection is implemented via RS and RA messages

IPv6 duplicate address detection technology is similar to free ARP in IPv4

The interface needs to perform duplicate address detection before enabling any of the unicast IPv6 addresses

In PIM-SM, the description of RP is incorrectly ?

An RP can serve multiple multicast groups at the same time, a multicast group can correspond to multiple RPs

All members of the group and the multicast sources that send multicast data to the group converge to the unique RP

The initial multicast streams for all groups in the shared tree are forwarded to the receiver via RP

An RP can serve multiple multicast groups at the same time, a multicast group can correspond to multiple RPs

RPs can be responsible for the forwarding of several or all multicast groups, and there can be an RP in the network

Regarding the description of the security level of the configured firewall security zone, the error is ?

For newly created security zones, the system defaults to a security level of 1

Two security zones are not allowed to configure the same security level in the same system

Once the security level is set, it is not allowed to change

You can only set the security level for a custom security zone

For newly created security zones, the system defaults to a security level of 1

Regarding the description of VRRP Fast Switching, the error is ?

A VRRP backup group cannot monitor Peer BFD, Link BFD, and Normal BFD

at the same time If you configure to monitor multiple BFDs at the same time Then the various configurations are interrelated and may have an impact

Use VRRP to monitor BFD sessions or EFM features, either in BPD sessions or EFM session states After the change, the VRRP module is notified to achieve fast VRRP switching

A VRRP backup group cannot monitor Peer BFD, Link BFD, and Normal BFD

at the same time If you configure to monitor multiple BFDs at the same time Then the various configurations are interrelated and may have an impact

When a VRRP backup group monitors normal BFD, when the BFD state changes, the activestandby state is changed by modifying the backup group priority

There are many ways to establish a cluster on a box switch, what methods does Huawei frame switch support to establish a cluster?

Set up via a cluster card on the motherboard

through the cluster daughter card on the interface board. Establish

through the service interface on the interface board Established by switching the cluster card on the network board

Set up via a cluster card on the motherboard

through the cluster daughter card on the interface board. Establish

through the service interface on the interface board Established by switching the cluster card on the network board

When there are multiple redundant links in an IS-IS network, multiple equivalent routes may occur.Regarding equivalent routing within an IS-IS network, which of the following descriptions is wrong?

If load sharing is configured, traffic is evenly distributed across each link

When the number of equivalent routes present in the networking is greater than the number configured by the command, and these routes have the same priority, the next hop device System IlD large routes are preferred for load sharing

After you configure the equivalent routing priority, when the IS-S device forwards traffic to the destination segment, it will not use load sharing, but forward the traffic to the next hop with the highest priority

For each of the equivalent routes, you can assign a priority, with the highest priority routes preferred and the rest as backup routes

If load sharing is configured, traffic is evenly distributed across each link

IsIS IPv6 cost 50 is configured under the interface, and the meaning of the command is ?

The LEVEL-1 and Level-2 costs of the interface's IS-IS IPv6 are 50

The LEVEL-1 and Leve1-2 costs of the INTERFACE's IS-IS IPv6 are both 60

The LEVEL-2 cost of the interface's IS-IS IPv6 is 50

The LEVEL-1 cost of the interface's IS-IS IPv6 is 50

Regarding the description of the BGP neighbor, the error is:

BGP routers that support autodiscovery neighbors

BGP establishing neighbors must be configured with MD5 authentication

BGP needs to establish a UDP connection before establishing a neighbor

BGP to establish a neighbor relationship needs to first interact with the link state information

BGP routers that support autodiscovery neighbors

BGP establishing neighbors must be configured with MD5 authentication

BGP needs to establish a UDP connection before establishing a neighbor

BGP to establish a neighbor relationship needs to first interact with the link state information

The following statement about IS-IS (IPv6) is correct?

In order to support the processing and calculation of IPv6 routes, IS-IS has added TLV232 and 236

IS-IS works at the data link layer and only needs to add a new TLV to support IPv6

In order to support the processing and calculation of IPv6 routes, IS-IS has added NLPID to the 129 TLV

In order to support the processing and calculation of IPv6 routes, IS-IS has added TLV232 and 236

By default, IS-IS has the multi-topology feature turned on

IS-IS works at the data link layer and only needs to add a new TLV to support IPv6

In order to support the processing and calculation of IPv6 routes, IS-IS has added NLPID to the 129 TLV

Regarding the description of the encapsulation format of the labels in MPLS, the correct one is ?

The TTL field in the label has a similar meaning to the TTL (Time To Live) in the IP packet, and also has the effect of preventing loops

The total length of an MPLS single tag is 4 bytes (32 bits).

The TTL field in the label has a similar meaning to the TTL (Time To Live) in the IP packet, and also has the effect of preventing loops

The total length of an MPLS single tag is 4 bytes (32 bits).

For Ethernet, PPP packets, the tag stack is like a "cushion layer", located between the layer 2 header and the data, and when there is a VLAN tag, the MPLS header is placed on the Ether head and VLANtag between

label in the S field, lbit Used to identify whether the label is a bottom label, and a value of 1 indicates that it is the penultimate label

The following statement about the VPNv4 address is wrongly described as ?

By default, PE does not perform VPN-target filtering on received VPNv4 routes.

Local PE sets up An Export Target for these routes before releasing VPNv4 routes learned from sites that are directly connected to them to other PEEs attributes, and are published with routes as extended community attributes for BGP.

Carries the RD attribute when BGP publishes both reachable and unreachable VPNv4 routes.

The VPNv4 address has a total of 12 bytes, including an 8-byte route identifier RD (Route Distingulisher) and a 4-byte IPv4 Address prefix.

What about the description of IGMP Snooping, is it correct?

IGMP Snooping establishes a MAC multicast address table by listening for IGMP packets sent by the host

IGMP Snooping runs at the link layer and is a multicast constraint mechanism on Layer 2 Ethernet switches that manages and controls multicast groups

IGMP Snooping solves the problem of multicast messages broadcasting in layer 3

IGMP Snooping does not consume the CPU of the switch

IGMP Snooping establishes a MAC multicast address table by listening for IGMP packets sent by the host

IGMP Snooping runs at the link layer and is a multicast constraint mechanism on Layer 2 Ethernet switches that manages and controls multicast groups

What are the wrong statements about OSTPF's Router LSA and Network LSA?

There must be both Router LSA and Network LSA in the OSPF network

A router running OSPF must produce a Network LSA

There must be both Router LSA and Network LSA in the OSPF network

Network LSA carries both topology and routing information

A router running OSPF must produce a Network LSA

A router running OSPF must produce a Router LSA

The following description of MED, correct:

MED is an optional non-transitional attribute

MED can only be passed within this AS

MED is an optional non-transitional attribute

Which of the following scenarios is not suitable for deploying interface policy routing?

Modify the next hop of locally originating traffic

In the scenario of multiple ISP egresses of enterprise networks, different network segments of the intranet access the Internet through different ISP egresses

The traffic accessed by the intranet and the extranet to the side-mounted security detection device is pulled on the core switch

Modify the next hop of locally originating traffic

Pull the traffic of the intranet and the Internet accessing each other on the core switch to the AC device attached to the side

Regarding MP-BGP, the following description is wrong?

PE and CE are routed through BGP interaction, you need to create a BGP process on ce for each VPN instance

Radio A. MP-BGP needs to assign a private label to the VPNv4 route

PE and CE are routed through BGP interaction, you need to create a BGP process on ce for each VPN instance

The message type and VPNv4 routing publishing policy for MP-BGP are the same as for BGP-4

MP-BGP advertises VPNv4 through two attributes, MP_REACH_NLRI and MP_UNREACH_NLRI Route

Huawei H12-891 Practice Test 7 - Free Online Exam Prep & Questions

Spam

Selling illegal goods, money scams etc.

Hate Speech

Serious attack on a group.

Harassment and bullying

Harassing an individual (including doxing)

Harmful activities

Threatening or glorifying violence or serious harm, including self-harm

Adult content (Consensual)

Nudity/Sexual content

Sexual exploitation and abuse (child safety)

Sexually explicit or suggestive imagery or writing involving minors

Sexual exploitation and abuse (adults and animals)

Sexually explicit or suggestive imagery or writing involving non-consenting adults or non-humans

Plagiarism

Reusing content without attribution (link and blockquotes)

Poorly written

Not in English or has very bad formatting, grammar, and spelling

Inappropriate credential

Author's credential is offensive, spam, or impersonation

Other

Ex. Illegal content, incomplete question...

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