Get Prepared for Your H12-891_V1.0 Exam With Actual 276 Questions [Q67-Q91]

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Get Prepared for Your H12-891_V1.0 Exam With Actual 276 Questions

Valid H12-891_V1.0 Test Answers Full-length Practice Certification Exams

Huawei H12-891_V1.0 certification exam is an industry-recognized certification that demonstrates the candidate’s proficiency in data communication technologies. HCIE-Datacom V1.0 certification exam is designed to help professionals advance in their careers by providing them with the necessary skills and knowledge to design and implement complex data communication networks.

Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Certification Exam is a globally recognized certification program that validates the advanced-level networking skills of professionals in the field of data communication. HCIE-Datacom V1.0 certification program covers a wide range of topics and is designed to help professionals enhance their knowledge and skills in the field. HCIE-Datacom V1.0 certification exam is challenging, but individuals who pass it are recognized as experts in the field and are highly sought after by employers.

QUESTION 67
What are the following techniques for improving MPLS BGP VPN reliability?( Multiple choice question)

dual home networking is configured at the access layer

VPN FRR

VPN GR Private IP routing between

PE-CE FRR

QUESTION 68
In a scenario where SR Policies are dynamically established through the controller, which of the following statements about the SR Policy solution architecture is incorrect?

The controller uses NETCONF to deliver configurations such as service interfaces and routing policies.

The controller uses BGP-LS to collect tunnel topology information and computes SR Policy paths.

The controller uses telemetry to deliver information such as SRv6 SIDs to construct SID entries.

The controller uses BGP IPv6 SR Policy to deliver SR Policy information, such as the color, headend, and endpoint information.

QUESTION 69
If the Interface Sticky MAC function is enabled, what is the number of MAC addresses that the interface learns by default?

QUESTION 70
As shown in figure, Clent1, C lent2 and Clent3 are simultaneously clients of RR1. Ri introduces 10 routes. It is assumed that the RGP is configured correctly. The neighbor relationship has been established, how many route entries exist in the BGP routing table of the most clIient3?

QUESTION 71
As shown in the figure, private network routing information is exchanged between PEl and PE2 and their respective CE via OSPF, and the same is configured on PEI and PE2 Domain D.
When routing is introduced from BGP to OS9PF on PE2, the following limited types of LSAs may be passed to E2?

Type7 LSA

Type5 LSA

Type3 LSA

Type1 LSA

QUESTION 72
The following statement about the alliance is correct?( Single choice questions).

The consortium divides an AS into sub-AS, and the alliance external AS still considers the consortium to be an AS

Subsystems within a consortium can use private AS numbers. Huawei NE/AR routers, a consortium can be configured with up to 32 subsystems

Consortium can easily detect the routing loop within the AS because EBGP is running between the subAS.

The subas number of the consortium, which by default notifies BGP peers outside the consortium

QUESTION 73
HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?

ICMP and UDP

IP ?TCP

UDP

NFS

FTP

QUESTION 74
Congestion management technology can be used to discard data packets in the buffer queue to prevent the buffer queue from being exhausted.

TRUE

FALSE

QUESTION 75
Users within a typical VPN can only communicate with each other, not with Internet users, and with Internet.
But VPN individual sites may have access to internet’s needs. The correct description of the implementation of VPN interconnection with internet is ?( Multiple choice questions).

is implemented on the user side, and the CE is directly connected to the Internet. Each user site can be connected to the Internet separately, that is, the CE of each site is configured with a default route to the Internet.

Implementing a complex implementation on PE and having security implications, PE devices may be subject to Dos attacks on the Internet.

Implemented on PE, the PE device issues a default route to the CE to the Internet and adds a default route to the VPN instance routing table pointing to the Internet Gateway o

Implemented on the user side, the implementation method is simple, and the public network and private network routes are isolated, safe and reliable.

QUESTION 76
Which of the following statements about IPSG is incorrect?

IPSG can be used to check the validity of IP packets. If IP packets are invalid, the device reports an alarm to an NMS.

IPSG is a source IP address filtering technology based on Layer 3 interfaces.

IPSG can be used to prevent hosts from changing IP addresses.

IPSG can defend against IP address spoofing attacks.

QUESTION 77
On a broadcast network, if the DR priorities of two interfaces connecting two routers are set to 0, in which of the following states will the OSPF neighbor relationship stay?

Full

Down

2-way

Exchange

QUESTION 78
What are the benefits of using WRED?( Multi-select)

Provides some low latency

Avoid TCP global synchronization

Avoid congestion completely

Provides a small bandwidth guarantee

Can avoid UDP occupying most of the bandwidth when congested

QUESTION 79
The address resolution feature for NDP in the following description is incorrect?

When sending a neighbor request packet, the source address-is set as the link-local address

of the local interface Two types of ICMPv6 messages,

are used in the address resolution process, neighbor request and neighbor advertisement Address resolution implements the ability to resolve from IPv6 addresses to link-layer addresses

When sending a neighbor request packet, the destination address must be the multicast address of the neighbor’s requested node

QUESTION 80
An SRLB is a set of user-specified local labels reserved for SR-MPLS. These labels are locally configured and have only local significance. Therefore, they are not advertised through the IGP.

TRUE

FALSE

QUESTION 81
Network administrator A wants to use an IP prefix list to match specific routes. Which of the following routes can be matched by the IP prefix list shown in this figure?
ip ip-prefix TEST permit 10.0.0.0 24 less-equal 30

10.0.2.0/24

10.0.1.0/24

10.0.0.1/30

10.0.0.0/24

QUESTION 82
IGMP SSMMapping is bound to multicast through a static multicast source, so that members of IGMPv1 and IGMP2 can also access the SSM multicast network. The following statement about IGMPSSMMapping is wrong?( Radio).

The multicast address of the SSM is 23

IGMP SSM Mapping does not process reporting messages from IGMPv3 In order to ensure that the same network segment runs any version

IGMP hosts can make SSM services run IGMPv3 on the multicast router socket connected to the network segment where the member host is located

If the IGMP SSM Mapping feature is not enabled, neither IGMPv1 nor IGMPv2 supports multicast for deploying SSM modules

QUESTION 83
In different scenarios, RSTP provides different protection functions, and the wrong statement about this statement is

The root protection feature is enabled for the specified port, and its port role can only remain as the specified port

When the anti-TC-BPDU packet attack feature is enabled, the number of times the switching device processes IC BPDU packets per unit time is configurable

after the BPDU protection function is enabled on the switching device, if the edge port receives RST BPDU, the edge port will be set to a non-remote port and the spanning tree calculation will be re-performed

Start the specified port of root protection, when the port receives a better RSTBPDU, the port will enter the Discarding state and is no longer forwarding packets. If the port does not receive a better RSTBPD for a period of time then automatically revert to the normal Forwarding state

QUESTION 84
In SSP packages, Jinja2 templates are used to implement mapping. In the Jinja2 syntax, {% … %} contains control structures, for example, a ‘for’ loop.

TRUE

FALSE

QUESTION 85
An existing router running BGP, HW1, has both IBGP neighbors and EBGP neighbors configured on the router. Are the IP Neighbors and EBGP Neighbors described below correctly?

The router will be connected directly from its EBGP IBGP neighbor, otherwise, IBGP-Multi-hop must be configured

The router sends BGP updates learned from its EBGP neighbors to its other IBGP neighbors and EBGP neighbors

IBGP neighbors can establish neighbor relationships through Loopback engagements

The router sends BGP updates learned from its IBGP neighbors to its other IBGP neighbors and EPGP neighbors

EBGP neighbors must be directly connected, otherwise, EBGP-Multi-hop must configure

QUESTION 86
Which of the following statements about BIER (Bit Index Explicit Replication) and PIM (Protocol Independent Multicast) are correct?

On a BIER-based multicast network, packets sent by the multicast source must be encapsulated with the Bitstring field.

On a PIM-based multicast network, an MDT covering all nodes that multicast traffic traverses needs to be established.

On a BIER-based multicast network, an MDT covering all nodes that multicast traffic traverses does not need to be established.

On a BIER-based multicast network, multicast users must send group join messages hop by hop.

QUESTION 87
In Huawei’s NAC solution, which of the following cannot be used for Portal authentication?

User name and password

Passcode

SMS verification code

User’s MAC address

QUESTION 88
About multi-instance CE (Multi-VPN-Instance CE, MCE). What is the error described below?

Users who connect to the same MCE but are not part of a VPN instance cannot access each other

The MCE vs. PE direction must have multiple physical links to achieve isolation between different VPN instances

MCE-enabled devices can access multiple VPI instances in BGP/RPLS IPVPN applications, reducing user network equipment investment

On the MCE device, you need to create their own routing tables for different VPNs and bind to the corresponding interface

QUESTION 89
Which of the following messages does the BGP protocol support?

Update

Open

Hello

Keepalive

QUESTION 90
One of the things you’re doing is compressing the length of ip6 addresses as much as possible .
The existing IP6 address is 2013xX0C130F006009cO87641308, to be able to make this P6 address more concise, you can compress the IP6 address into which of the following?( Single choice questions).

2013:0:130F:0:0:09CO:876

2013:130F::9CO:876

2013:0:130F:0:0:9CO:876

213::13F::9C:876

2013:0:130F::9CO:876

QUESTION 91
Which of the following commands is used to adjust the cost of an IS-IS interface?

isis circuit-type

isis timer hello

isis cost

isis circuit-level