Get New 2023 Valid Practice To your H12-891_V1.0 Exam (Updated 610 Questions) [Q99-Q120]

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Get New 2023 Valid Practice To your H12-891_V1.0 Exam (Updated 610 Questions)

Huawei Certified ICT Expert H12-891_V1.0 Exam Practice Test Questions Dumps Bundle!

Q99. Regarding the mpLS handling mode of TTL, is the following description correct?

Pipe mode. When an IP message passes through the MPLS network, the IPTTL minus 1 is mapped to the WLSTTL field at the incoming node.

The TTL in the MPLS label has the same meaning as the TTL field in the head. TTL prevents mpLS networks from developing bad routing.

Unifore style, when an IP packet passes through the MPLS network, the IPTTL of the incoming node is minus l. The MPLS TTL field is a fixed value.

In MPLSVPI, if you need to hide the structure of the MPLS backbone network, you can use Uniform mode on Ingress for private network messages .

Q100. The following statement about static VXLAN tunnel configuration is correct?

A BD needs to create an NVE country, and when there are multiple BDs, multiple NVE interfaces must be created

An NVE interface can be associated with multiple VNls, so you can create only one NVE interface when there are multiple BDs

For a VXLAN tunnel, you need to create a corresponding NVE interface, in which you explicitly specify the source IP address and the destination IP address , so there are multiple VXLAN tunnels on the VTEP that must be vE interfaces The destination address of the VXLAN tunnel is specified in the

NVE interface, and multiple VXLAN tunnels can create only one NVE interface

Q101. The following about the Router-LSA of OSPFv3 is correct?( Single choice questions).

The router-LSA data area contains the Link-Local address

The router-LSA data area contains the Interface ID of the neighbor on this side

Similar to OSPFv2, the Option field exists in the header of LSA, not in the data area of Router-LSA

When LS type= Ox0001 in the head of LSA, the data area representing LSA is Router-LSA

Q102. If the Interface Sticky MAC function is enabled, what is the number of MAC addresses that the interface learns by default?

Q103. Between two directly attached devices that have established an IBGP neighbor, execute the shutdown command to close the interface of one of the devices. The BGP connection is not immediately disconnected.

TRUE

FALSE

Q104. Regarding the domain-authentication-mode md5 hello command in the ISIS process, the correct explanation is
?

ISIS authentication cannot be applied in IPv6 environments.

This command is mainly used to make is the ISIS Hello message carry authentication information during the transmission process.

All router domain authentication methods of the same routing domain are MD5, the password is hello, and lS-IS SNP and LSP will spread normally.

outing domain authentication is primarily used to allow level-1 and Level-2 SNP and LSP messages to carry authentication information during delivery.

Q105. The following description of LDP reliability is incorrectly ?( Radio).

LGP GR takes advantage of the high difference between the LS forwarding plane and the control plane to realize that the device forwards without interruption when the protocol is restarted or the master-standby is reversed

Manually configured LDP FRR policies default to 32-bit backup routes that trigger LDP to establish backup LSPs

LLDPFRR also allows LSPs to be generated for tag mappings from non-optimal next hops, and as a live LSP backup, supervising forwarding table entries

LDP and IGP linkage, the need for IGP has been routed to release, to ensure that LDP and LGP path consistent

Q106. SNMPv3 defines which security features

Privacy

Authentication

Domain checking

Accounting

Q107. In the topology shown in the figure. Running the OSPFv3 protocol over the entire network does not produce what type of LSA on R1 without external route introduction?

Intra-Area-Prefix-LSA

Inter-Area-RouterLSA

Link-LSA

Inter-Area-Prefix-LSA

Q108. The multicast IP address is 2291301301, and its corresponding MAC address is :(Multilist)

01-00-5E-O2-82-01

01-00-5E-82-82-01

00-00-5E-02-82-01

00-00-5E-82-82-01

Q109. In ospf broadcast networks, there are 4 routers RTA, RTB, RTC, and RTDs within the same network segment The DR priorities are 2, 1, 1, and O, and the Router ID is respective 1921681.1, 19216821, 19216831, and 192
16841 If the OSPF protocol is enabled on both of these four routers, ospf selects the BDR as

RTB

RTC

RTD

RTA

Q110. By default, huawei firewalls provide the following security areas:

Trust zone

Security zone

Local zone

Untrust Zone

Q111. When DLDP detects the presence of a one-way link in the fiber, the default actions of Huawei equipment include: the DLDP state machine migrates to the Disable state, outputs Trap information, and automatically sets the interface to a blocked state.

True

False

Q112. Regarding the cross-domain VPN-OptionB scenario, what is the following description incorrect?

In the process of packet forwarding, the private network LSP of the VPN should be exchanged once on the two ASBRs An EBGP neighbor relationship.

Cross-domain VPN An Option

scheme is not limited by the number of interconnection links between ASBRs

The outer layer label is exchanged between two ASBRs to VPNv4 routes.

Q113. The following statement about RSTP root protection is correct?

Turning on root protection on the root port takes effect

The port that turns on the root protection receives the RST BDPU with a higher priority and will enter the error-down state

It is recommended that you turn it on on a switch that is at the edge of the network

After opening the root-protected port and receiving the RSTBPDU with a higher priority, if it does not continue to receive the RSTBPDU with a higher priority for a period of time, it will return to the normal forwarding state

Q114. Although the STP protocol can solve the loop problem, it affects the quality of user communication due to the slow convergence of the network topology. RSTP has made many improvements to STP, which of the following is not an improvement of RSTP to STP?

In addition to the 3 port states, RSTP vice adds 2 new port roles

Non-root switches running RSTP send configuration BPDUs at intervals specified by Hello Timer, a behavior that is entirely autonomous for each device

RSTP port state specification is divided according to whether the port forwards user traffic and learns the MAC address, reducing the original 5 port states to 3

If a port does not receive a configuration BPDU sent by the upstream device for 4 consecutive Hello Time, the device considers the negotiation with this neighbor to fail

Q115. Which of the following is the benefit of VLAN aggregation?

Implements isolation of broadcast domains between Sub-VLANs

Reduce the waste of IP addresses

Increased number of available VLANs

Increased flexibility in addressing

Q116. Comparisons for primary switch elections in the stack include ?

MAC address

Health status

Stack priority

Stack ID

Q117. OSPFV is the GP running on the P4 network) OSPF3 is the KGP running on the IP6 network. OsPFV works the same basic way as OSPF2, such as elections for DR and BDR. As shown in the figure, an engineer uses three routers for IP6 service testing, and he wants to interconnect the IPv6 network by running OSPFv3 Which of the following statements is correct regarding the election of the network DR?

After the network converges, R1 is DR

After the network converges, the engineer modifies the priority of R1 to 100, the priority of R2 to 10, and R3 to the default value. When the network converges again, Rl is DR and R2 is BDR

After the network converges, the broadcast link adds a device, R4, with a priority of 150 When the network converges again, R4 is DR

After the network converges, R1 is powered off and restarted, and when the network converges again, R3 is DR

Q118. Which of the following IEEE standards is specific to Gigabit Ethernet?

8023z

8023ab

8023ad

8023af

Q119. The HW appliance network administrator plans to migrate IGMPv2 in the multicast network to IGMPV3 Where does IGMPV3 improve over IGMPv2?

IGMPv3 adds the ability for hosts to specify multicast groups that do not join a specific multicast source

IGMPv3 adds the ability for hosts to specify multicast groups that are joined to a specific multicast source

IGMPv3 adds Request-to-send and Clear-to-send between source and local IGMP queries

IGMPv3 removes the Report-suppression feature for membership reporting

IGMPv3 removes the ability to include all sources in a wildcard group

Q120. Users hope to be able to make the router forward and select messages according to their own defined policies on the basis of traditional route forwarding, and can adopt policy routing, and the following description of policy routing is incorrect

Policy Routing can set the next hop IP address

Policy Routing cannot be set in the next statement DSCP

Policy Routing cannot be used to set IP precedence

Policy-based routing can be used to match message lengths