[Jul 12, 2023] H12-891_V1.0-ENU Questions Truly Valid For Your Huawei Exam! [Q183-Q207]

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[Jul 12, 2023] H12-891_V1.0-ENU Questions Truly Valid For Your Huawei Exam!

H12-891_V1.0-ENU Actual Questions – Instant Download Tests Free Updated Today!

Huawei H12-891_V1.0-ENU certification exam is a comprehensive exam that covers a wide range of topics related to data communication technologies. H12-891_V1.0-ENU exam covers topics such as network architecture, network design, network implementation, network operation and maintenance, network security, and network troubleshooting. H12-891_V1.0-ENU exam is designed to test the candidate’s ability to apply their knowledge and skills to solve real-world problems related to data communication networks.

QUESTION 183
In OSPFv3, Router-LSA is generated by each router, which describes the interface address and cost of the router’s links, as well as the RouteriD of the neighbor router.

True

False

QUESTION 184
What is the following description of MPLS BGPVPN incorrect?

The TTL field in the label has the effect of preventing loops.

IBGP PEes generally use the Loopback interface address to establish a stable BGP neighbor relationship

BGP So0, which is used to prevent routes issued from a VPN site from passing through the MPLS backbone and back to that site. So0 is an extended group attribute that MP-BGP automatically generates.

The routing exchange between PE-CE can be static routing, OSPF multi-instance, IS-IS multi-instance, EBGP

QUESTION 185
What is correct below about LDP synchronization in ISIS?

LDP synchronization can be turned on globally.

LDP establishes neighbors faster than ISIS, so LDP synchronization is turned off by default

LDP synchronization avoids traffic loss when the active-standby link is switched.

LDP synchronization can be deployed on the Loopback interface.

QUESTION 186
Regarding the WRR (Weight Round Robin) description of the error is? (Multiple select).

WRR avoids congestion in the network

WRR guarantees that various queues are allocated to a certain amount of bandwidth

WRR is a congestion management technique

WRR can no longer use

WRR on GE interfaces to ensure that critical services are prioritized for

QUESTION 187
MQC, like PBR-can only be called under the device’s Layer 3 interface.

TRUE

FALSE

QUESTION 188
In addition to stateless address autoconfiguration, IPV6 devices can also obtain addresses, gateways, DNS, and other information through DHCPv6

True

False

QUESTION 189
Level-1-2IS transmits Level-2LSP to the Level-1 area if the AT location 1 in Level-2LSP is delivered It means that the Level-1lS in the area can be accessed to the outer area through Level-1-2IlS

True

False

QUESTION 190
There is an existing switch running the RSTP protocol. If the network topology changes, what happens to the Layer 2 forwarding table that is automatically learned by the switch?

All table entries are dropped

Except for the table entry related to the edge port that is not deleted, all other table entries are deleted

Only table entries related to the port that received the TC message are dropped

If the aging time is set to 15 seconds, entries that exceed the aging time are deleted

Table entries are dropped except for table entries related to edge ports and table entries related to ports that receive TC messages

QUESTION 191
Regarding the Stub region and the NSSA region of the OSPF protocol, the following statement is incorrect with a single choice

Neither the Stub region nor the NSSA region allows injection of Type4 LSA

Type5 LSA injection is not allowed in the Stub region, while Type5LSA injection is allowed in the NSSA region

Type7LSA injection is not allowed in the Stub region, while Type7LSA injection is allowed in the NSSA region

Both the Stub region and the NSSA region allow injection of Type3 LSA

QUESTION 192
The existing router HWl running BGP is configured with both IBGP neighbors and EBGP tenants.
The following descriptions about IBGP Neighbors and EBGP Neighbors are correct?

The router will have an EBGP BGP neighbor from it must be connected directly, 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 the Loopback interface

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 be configured with

QUESTION 193
In order to study the working mechanism of the OSPFv3 protocol, a project to build a network topology is as follows, the configuration of R1 and R2 is as follows, please ask the LSA switched between R1 and R2 What are the types?

network-LSA

Router-LSA

Link-LSA

Inter-area-prefix-LSA

QUESTION 194
In inter-domain packet filtering, which of the following options belongs to the outbound direction?

trust –>Local

untrust–> dmz

trust–> untrust

untrust–> trust

QUESTION 195
The following description of BGP load sharing is wrong with? (Multiple choice question)

The AS_Path properties of the equivalent routes that form load sharing must be different.

The destination CIDR blocks are the same, and load sharing can be formed between BGP routes with different sources.

If BGP load sharing is implemented, the local device needs to configure the peer next-hop-local command to change the next hop address to its own address when issuing a route to an IBGP peer group.

IBGP routes and EBGP routes that reach the same destination in the public network can form a load sharing

QUESTION 196
How do IGMPv2 routers maintain cinderband group membership? Multi-select

The router queries a specific group

The router maintains a timeout timer for each group membership, refreshes the timer if the receiver host is received, and deletes the group membership if the timer times out

The router periodically sends a Query message, and after the receiver host receives the Query message, it reports a Report message

As soon as the leave message is received, the router immediately deletes the group membership

QUESTION 197
To build a loopless Layer 2 network, which of the following schemes is optimal? (Single Choice)

Stacking + Link Aggregation

TRILL+MSTP

??+MSTP

Link Collection + MSTP

QUESTION 198
BGP4+ is running between two routers, and the neighbor relationship is normal, but the BGP routing table of the router on this side does not have a neighbor route entry.

The route entry in the peer BGP route table is non-optimal.

The next hop address of the

BGP route entry is unreachable

Peer ignore is configured on the peer

The peer is configured with active-route-advertise

QUESTION 199
Which of the following default routing delivery methods does OSPF support? (Multi-select)

It can be issued without force

Can be issued on ABR

Issuance can only be enforced

Answer can be issued on ASBR

QUESTION 200
When running OSPFv3 on a Huawei router, the OSPFv3 process automatically selects an interface address as the process router id

True

False

QUESTION 201
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 202
DHCPv6 servers support additional configuration information such as DNS server addresses for hosts.

TRUE

FALSE

QUESTION 203
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

QUESTION 204
As shown in the figure, three switches S1, SW, and SN3, where SWI is the root bridge, and link congestion occurs between SI and SW2, SWD cannot receive the configuration BPDU sent by the root bridge, which spanning tree protection mechanism does the administrator need to configure to prevent the problem caused by link congestion? (Single choice questions).

root protection

PreventS TC-BPDU attacks

BPDU Protection

Loop Protection

QUESTION 205
In the use of the LACP protocol, the following description is correct? (Multiple select).

You can avoid the Eth-Trunk interface from frequently shaking interface eth-trunk 1l lacp preempt enable lacp preempt delay delay-time with the following command

Source IP address load sharing, interface eth-trunk1Load-balance src-dst-ip, can be configured in an enabled link aggregation group with the following command

The member interface can be removed from an enabled link aggregation group with the following command: interface GigabitEthemeto/0/1 Shutdown nterface Gigabithemet/O/1undo eth-trunklinterface GigabitEthemet0/0/1 undo shutdown

A chain cluster that can be initiated through an order Join the member interface: interface GigabitEthemeto/0/1 shutdown interface igabitEthemetO/0/1 tunkportGigabitEthermet0/0/1 interface GigabitEthermet0/0/1 Undo shutdown

QUESTION 206
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 207
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 DR. PIM routers with low

DR priority values are elected DR.

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