Real Huawei H12-891_V1.0-Enu Preguntas de examen [2022] para lograr Huawei Hcie-Datacom V1.0 Certificación

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Ganar la certificación HCIE-DATACOM requiere aprobar el examen H12-891_V1.0-Enu con éxito. Todas las preguntas de examen Realexam.es Huawei H12-891_V1.0-Enu están aquí para ayudarlo a tener éxito en el examen Huawei Hcie-Datacom V1.0. El uso de una fuente confiable de planificación para ayudarlo a aprobar el examen H12-891_V1.0-Enu con éxito es una forma efectiva, se puede hacer a través de una variedad de recursos en línea, pero no todos pueden garantizar su éxito en su primer intento. Con la ayuda de realex.es H12-891_V1.0-Enu Preguntas de examen, podrá obtener una guía de estudio y las preguntas y respuestas de prueba Huawei Huawei real. Se recomienda leer H12-891_V1.0-Enu en ene.

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1. CMPv6 uses the Type field to identify the message type, and according to the value of the type field, we can divide the ICMPv6 message into two categories, one is the error message and the other is the information message

True

False

2. MSTP switches treat RSTP switches as MSTP domains, MSTP, which are formed by a single switch The interchange resolves the RSTBPDU to MSTBPDU, where IRPC is 0

True

False

3. The switch can suppress traffic by suppressing traffic and extremely other failures can affect operations, which of the following traffic suppression configurations is the wrong configuration

[Quidway] wan 10 [Quidway-wan10] multicast-suppression 1000 [Quidway-van10] quit

[Qudway ineface gigabtethemnet /0'1 [Quidway-GigabitEfthemetO0/O/1]multicast-suppression 80TQuidway- GigabitEthernet0/0/1]quit

Quidway inteface gigabiethenet ou0/1 [Quidway-GigabtEthernet/0/1J,broadcast-suppression 80 IQuidway-GigabitEthernet//1]Jqut

[Quidway] icmp rate-limit enable [Quidway] icmp rate-limit total threshold 20

[Quidway ] wan 10 [Quidway-wani0] broadcast-suppression 1000 [Quidway-van10] quit

4. SSH uses asymmetric encryption algorithms AES and DES to achieve security for data transmission, and uses HMAC to ensure the complete integrity of integer data

TRUE

FALSE

5. After configuring the VLAN-based MAC address drift detection function, if the MAC address drifts, you can configure the actions of the interface according to your needs .

Which of the following is not a configurable action?

Send an alert

The MAC address blocks

Interface blocking

Traffic filtering

6. If a DR needs to be elected between multicast routers running PIM-SM to be responsible for the sending and receiving of source or member multicast data, which one is described correctly below for the DR election rule?

PIM routers with long interface masks are elected dr.

Compare the DR priority first; With the same priority, you need to compare the interface IP addresses of the PIM routers to elect dr

PIM routers with small IP addresses are elected D

PIM routers with low

DR priority values are elected D

7. CORRECT TEXT

The following about BGP routing, describing the error, is?

A, non-aggregate routes take precedence over aggregate routes

B. In PrefVal, Local_ Preference is equal to the case if the route is generated locally, IBGP Routing, the BGP preference for EBGP routing, is generated effectively referring to route priority.

C. See the following entry in the BGP routing table:* 172161.11/32 000010 0? Indicates that the route is available non-optimal

D. For next_hop unreachable routes when invalid routes, do not participate in the preferred.

8. As a network administrator, which of the following protocols can I use for network device configuration?

SSH

NETCONF

LLDP

SNMP

9. The following description of the characteristics of multi-instance CE is?

Since the MCE device is already bound to the VPN, there is no need to bind the VPN on the PE connected to the MCE device

The MCE device can determine the source of the routing information according to the interface that receives the routing information, and maintain it in the route forwarding table of the corresponding V

MCE is implemented by creating their own routing forwarding tables for different VPNs on the MCE device and binding to the corresponding interface o

Configuring MCE enables a CE to connect to multiple VPNs at the same time, which can not only completely isolate the service between different VPN users, but also reduce the input cost of network equipment.

10. A switch joins a running stacking system after powering up, a behavior known as heap overlay.

TRUE

FALSE

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11. In order to reduce the number of OSPF routes in certain areas, the OSPf protocol has developed special area functions, and the following description of the characteristics of OSPF special areas is correct

ASBR-Sunmary-LSA is allowed to be published to the NSSA region

AS-External-LSA is allowed to be published to the Stub region

Any OSPF zone can be configured as a special zone

Zone can be equipped with zhiyi

12. If the Option field value in the 0SPFv3 Hello message issued by the router's GIgabit Ethermet0/0 interface is 0x000013, the following description is correct

The Gigabit/thernetO/0/0 interface of Router A adds IPv6 routing to compute

Router A's Gigabit/thernetO/0/0 interface belongs to the NSSA zone

Router A supports AS-An External-LSA flood

Router A is an OSPFv3 device with forwarding capability

13. 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

14. What of the following actions can enable fast failure detection on multicast networks?

Shorten the Holdtime of Join/Prune messages

Reduce the interval at which the interface sends Hello messages

A PIM BFD session is established between neighbors

Reduce the interval between sending Join/Prune messages

15. The following statement about the NSSA area is correct (multiple choice).

In the NSSA area where the OSPF neighbor sends hello packets, the N position 0, E within the option field Position 1

The NSSA zone must automatically generate a default LSA to access the external network

The NSSA zone generates a Category VII LSA to advertise external routing, and the FA address in the Category VII LSA acts to prevent loops

In the OSPF neighbor in the NSSA region sends hello packets, position 1 within the option field, position E

16. Which of the following IEEE standards is specific to Gigabit Ethernet?

8023z

8023ab

8023ad

8023af

17. IPV6 multicast introduces the concept of multicast scope, which of the following ways is the multicast scope concept implemented? Multi-select

When the group shake source sends IP6 multicast data, the TTL value of the packet is set to limit the transmission range of the group shake

There is a special field in the IPv6 multicast address that specifies the propagation range of multicast.

Multicast scope is just a concept of spreading scope, and there is no specific technical implementation.

During network configuration, the administrator uses the configuration command at the edge of the network to limit the multicast scope.

18. The BSR/RP mechanism described below describes the correct determination? (Multiple choice questions).

There can be multiple C-BSRs in the

PIM-SM domain, but only one BSR can be elected.

BSR collects C-RP information by receiving packets of C-RP

BSR advertises BSR and C-RP information to all routers in the PIM-SM domain via flood bootstrap messages

A C-BSR can also collect C-RP information by receiving C-RP packets

19. CORRECT TEXT

The following description of Filter-Policy is correct? (Radio).

A With Filter-Policy, on ASBR in OSPF, type5LSA and type7LSA can be applied The build is filtered.

B. Prefix lists can be used to filter both routes and packets.

C. Filter-policy filters the link state information received or published, and can modify the properties of route entries.

D. When filtering routes using the pre-slow list, the table entry ip-prefxldeny0000 0 lese-qual 32 indicates that only the default route matches

20. When a Layer 3 switch sends IP packets originating from one VLAN to another LAN, which field in the following options is overridden? (Single choice questions).

Three layers of TTL

Layer 3 destination address

Layer 3 source address

Layer 3 Transport Protocol

Two-tier TTL

Page 3 of 4

21. 1.The DHCP protocol assigns to clients―some TCPIP-related parameter information―in the process DHCP defines a variety of messages that are encapsulated at the transport layer: (sortic).

PPP package

IP encapsulation

TCP Encapsulation

UDP Encapsulation

22. BGP routing policies can control the publication and acceptance of routes

TRUE

FLASE

23. 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 subA

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

24. A home user has opened a 1Mb/s bandwidth, and in order to improve the user experience, the operator can stabilize 2Mb/s when measuring speed If we use the listening bucket technology to achieve this requirement, which of the following methods is optimal.

cir 10000 pir 12000

cir 10o00 cbs 12000 pbd 12000

cir 8000 pir 12000

cir 10000 cbs 10000 pbs 12000

25. In the use of the CP protocol, the following description is correct?

The Eth-Trunk interface can be avoided by frequent oscillation interfaceeth-trunkllacppreemptenablelacppreemptdelaydelay-time by following command

Source A address can be configured for load sharing in an enabled link aggregation group with the following command: interface eth-trunk 110ad-balance src-dst-ip

A member interface can be removed from an enabled link aggregation group with the following command: interface GigabitEthernet0/0/1 shutdown interface GigabitEthernet0/0/1 undo eth-trunk 1 interfaceGigabitEthernet0/0/1undoshutdown

The member interface can be joined in the link aggregation group by enabling the following command: interface GigabitEthernet0/0/1 shutdown interface GigabitEthernet0/0/1 trunkport

26. Which of the following messages does the BGP protocol support?

Update

Open

Hello

Keepalive

27. There is an As-path-filter.ip as-path-filter 1 permit*(100l400) $, which As-path-filter can match which of the following AS_PATH Attribute? (Confirmed).

300 4200

1234 1400

3100

100

28. To implement the traffic filtering function, you can use trapp-filter or MQC, which can be called in more views than traffic-filter

FALSE

TRUE

29. ISIS elects DIS in broadcast multiplexed access networks, and the following statement about DIS is correct? (Multiple choice)

ISIS elects dis by comparing priorities, and mac addresses if the priorities are consistent

In a broadcast multiple access network, DIS sends Hello PDUs at three times the frequency

DIS guarantees database synchronization by periodically sending CSNP messages

DIS supports preemption function, after the new DIS preemption is successful, there is no need to flood any LSP packet

30. A VRRP virtual router configuration VRID is 3 and the virtual IP address is 100 1. 1. 10, so what is the virtual MAC address?

O0-00-5E-00-01-64

01-00-5E-00-01-03

01-00-5E-00-01-54

00-00-5E-00-01-03

Page 4 of 4

31. In RSTP, which port provides a backup path to reach the root node of the spanning tree?

What state is the port in?

Root Port and Listening Status

Alternate Port and Forwarding Status

Alternate Port and Learning Status

Designated port and Listening status

Alternate port and Discarding status

32. In a VXLAN network, traffic is connected to the VXLAN network, and it can also be used to communicate with the same subnet within the same XLAN network

NVE interface

VXVAN L2 Gateway

VXLAN L3 Gateway

VLANIF interface

33. After BGP introduces routes for other protocols, the next hop in the BGP routing table is consistent with the next hop of the introduced routing protocol

True

False

34. The following description of the link state protocol is plausible?

CPU utilization is high and loops are easy to generate

Slow convergence and low CPU utilization

Fast convergence and low CPU utilization

Fast convergence and high CPU utilization

35. Router HW enables OSPF and router HW has the role of ABR and is configured with abr-summary, then which class LSA Will it be aggregated?

1 Class LSA

2 kind LSA

3 kind LSA

4 kind LSA

5 Class LSA

36. What is the wrong description of the function of OSPFv3 protocol authentication?

OSPFv3 can only establish a security alliance SA using manual mode

Huawei router OSPFv3 IPSec authentication can not only support transmission mode, but also support tunnel mode

OSPFv3 authentication relies on IPv6 packet authentication headers and encapsulation security net load headers

The OSPFv3 protocol header removes the Type and Automation fields

37. Is the following description of ospf virtual links correct?

A virtual connection can be established in any area, after which it itself belongs to the region

The virtual connection ip is used as the link address

Virtual links can be used to solve the problem of zone 0 being segmented

The cost of a virtual connection is zero and is the optimal link

38. For Layer 2 VPN technology, the following statement is correct? Multi-select

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.

BGPEVPN supports features such as tenant isolation, Multi-homing, and broadcast suppression.

BGPEVPN addresses mac address drift and multi-tenancy that VPLS cannot support.

39. How do 8021w and 8021D handle BPDUs? (Confirmed) The

8021D bridge only forwards BPDU packets received from the root bridge

The 8021D bridge does not forward BPDU messages

The 8021w bridge forwards only BPDU packets received from the root bridge

8021w Bridge does not forward BPDU packet

40. XLAN uses BGP EVPN to establish a tunnel, what type of message is used? (Single choice questions).

Typel

Type2

Type3

Type4

Type5

Real Huawei H12-891_V1.0-Enu Preguntas de examen [2022] para lograr Huawei Hcie-Datacom V1.0 Certificación

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