H12-891_V1.0 Dumps 2023 New Huawei H12-891_V1.0 Exam Questions [Q226-Q247]

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H12-891_V1.0 Dumps 2023 – New Huawei H12-891_V1.0 Exam Questions

Free H12-891_V1.0 braindumps download (H12-891_V1.0 exam dumps Free Updated)

NEW QUESTION 226
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.

NEW QUESTION 227
MACsec provides users with secure MAC layer data sending and receiving services. Which of the following is not a service available by ACsec?

User data encryption

Data source authenticity verification

Integrity check

Controllability check

NEW QUESTION 228
To achieve an on-machine migration in the BGP EVPN distributed gateway scenario, which of the following messages is required?

Type5

Type4

Typel

Type2

Type3

NEW QUESTION 229
As shown in the figure, all routers declare the loopback address in OSPF where the R storage does not return address is 1022 [2 declares 10033[ at the Ael.R3 ring E port[ 92101102A External routing in order to win light R win L away from the negative cut.
The noodle command is as follows: (multi-select) [BIppprefixt permlt 1001.1.024 [R1] ospf1

router RI of the IP routing table, there is no external route to 1001.1.0/24 of

router R1 In the IP route table, there is an external route to 1001.1.0/24

In the IP routing table of Router R1, there is no loopback route to

In the IP routing table of Router R1, there is no loopback route to R3

NEW QUESTION 230
A workstation is connected to an Ethernet switch in the work through a super-class 5 wire, the workstation can access the entire network (that is, full connection) through the switch, but the access rate is much lower than expected, when viewing the switch interface statistics, you can detect that there are many ultra-small frames, with software to read the statistics of the workstation network card, found that there are Many FCS and frame alignment errors, what causes the machine to cause these errors?

The rate mismatch between the workstation and the switch

Interface mismatched to an 8021Qtrunk interface

The line between the workstation and the switch has been completely damaged

The operating mode between the workstation and the switch does not match

The network interface card on the workstation is damaged

NEW QUESTION 231
Which of the following options enables encapsulation and unencapsulation of VXLAN messages?

VBDIF

VLANIF

VTEP

NEW QUESTION 232
What are the following correct statements about MUX VLANs?( Multiple select).

The Principal VLAN can communicate with all VLANs within the MUX VLAN

Each Separate VLAN must be bound to a Principal VLAN

Separate VLANs can communicate with all VLANs within a MUX VLAN

Each Group VLAN must be bound to a Principal VLAN

NEW QUESTION 233
Communityflter has two types of basic group nature filters and advanced group property filters. Which of the following filters makes the Advanced Group Genus Filter more flexible than the Basic Group Attribute Filter to match group attributes?

IP-prefix

AS-path-filter

Regular-expression

ACL

NEW QUESTION 234
When you deploy BGP/MPLSIPVPN, when two VPNs have a common site, the common site must not use overlapping address spaces with the other sites of the two VPNs.

TRUE

FALSE ?:B
499The series description for configuring static lSPs in MPLS networks is correct?

When an LSR is Ingress LSR, only configure Out Label, which ranges from 16-1048575

When an LSR is a Transit LSR, you need to configure both In Label and Out label, both in the range of
16-1023

When an LSR is TransitLSR, you need to configure both ln Label and Out Label, both of which are
161023 The Out Label ranges from 16 to 1048575

When an LSR is An Egyptian LSR, only in Label needs to be configured, ranging from 16-1023

NEW QUESTION 235
Which of the following scenarios does not require RPF checking?( Single choice questions).

When a router in PIM SM receives multicast traffic when a shared tree is established to an RP in PIM SM

When a pruning message is received in PIM SM

When the RP in PIM SM establishes the source tree to the multicast source

NEW QUESTION 236
Which levels are common in the OSI reference model and the ICP/IP model? ( Multiple choice question)

Session layer

Data link layer

Transmission layer

Presentation Layer

Physical Layer

Application Layer

NEW QUESTION 237
The following statement about the application of BFD is correct?

The one-arm echo function refers to the detection of the connectivity of the forwarding link through the loopback operation of the BFD packet

BFD multi-hop detection means that BFD can detect arbitrary paths between two systems that may span many hops or overlap in some parts

BFD and OSPF linkage is to associate BFD and OSPF, and notify OSPF through BFD’s rapid sensing of link failures, thereby speeding up OSPF Response to changes in network topology

BFD single-hop detection refers to the IP connectivity detection of two direct-connected systems

NEW QUESTION 238
The following statement about IPSec VPN is correct

Brutal mode can support NAT traversal, while main mode does not support NAT traversal.

The two routers establish IPSecVPN in main mode, and from the 5th message (included), the payload’s data is often encrypted.

Two routers establish an IPSec VPN in brutal mode, so that the tunnel is built with a minimum of 4 messages interacting between the two devices.

The two routers can establish an OSPF neighbor relationship through the IPSec VPN (19) channel and exchange intranet devices by

NEW QUESTION 239
The router port to which the policy is applied has been idle for about 10 seconds, and there is a huge burst of c1 type coming in an instant, so how many bytes will the packets that are colored green?

256K bytes

48128 bytes

32K bytes

80128 bytes

NEW QUESTION 240
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

NEW QUESTION 241
In an HWIP multicast network, where multiple sources exist and each source has several receivers, which protocol allows source-to-RP traffic and RP-to-receiver traffic to share the same tree 2?

MOSPF

PIM SM

DVMRP

56768GZliuji

PIM-DM

NEW QUESTION 242
What are the characteristics of Syslog information?

The transmission of Syslog messages is not secure

The transmission of Sysiog messages is reliable

The transmission of Syslog messages is confirmable

The transmission of Syslog messages is secure

The transmission of Syslog messages is not acknowledgable

The transmission of Syslog messages is unreliable

NEW QUESTION 243
The following statement about the IS-IS protocol is incorrect?

The IS-IS protocol is a link-state protocol that runs between AS

The IS-IS protocol supports CLNP networks

Messages for the IS-IS protocol are encapsulated directly by the data link layer

The IS-IS protocol supports IP network ad

NEW QUESTION 244
In Huawei devices, when SIS introduces external routes and sets external route tags for route information, the Metric type of ISIS does not need to be modified and remains default.

True

False

NEW QUESTION 245
What kind of scenario can use AS-path-filter?( Multiple select).

A Filters routes received from BGP neighbors based on the AS PATH attribute carried by the route, such as the command peer X.x.x.x as path-filter import

The apply clause in Route policy

Filter routes sent to BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peer x.x.x.x as path-filter export

The if-match clause in Route-policy

NEW QUESTION 246
What is the exact description of the SSM features?

Using SSM, the receiver can use INCLUDE in IGMPv3 to indicate that the source

SSM he wishes to join is an extension of the DVMP protocol. to efficiently transmit one-to-many communication traffic

SSM requires MSDP to discover active sources in other PIM domains

Routing multicast traffic in the SSM is done by relying on the number of sources, and the RP is used for the receiver to answer the corresponding number of sources

NEW QUESTION 247
The flood range in OSPFv3 is the LSA within the entire autonomous system?

Intra-Area-prefix-LSA

AS-external-LSA

Link-LSA

Inter-Area-Prefix-LSA