New Updated Huawei H12-261 Training Material

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Once you earn HCIE-Routing & Switching certification, you will have a comprehensive and thorough understanding of large networks, including technologies used in complex large and medium-sized networks, and the ability to design various enterprise networks independently and implement those designs using Huawei routing and switching devices. H12-261 exam is a written test for HCIE Routing and Switching certification. We just updated Huawei certification H12-261 exam questions, which can guarantee you success. Share some free updated Huawei HCIE Routing & Switching H12-261 training material below.

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1. Huawei S series switches, If you need to specify a member switch as the stack master switch, you can power on this first switch 20 and then to the other members of the power switch.

True

False

2. Which of the following description of the 802.1s deployment features is correct?

Multiple bridges share a spanning tree instance

All VLANs share a spanning tree instance

Each VLAN shares a spanning tree instance

Multiple VLANs share a spanning tree instance

3. Which of the following description on BCP properties is correct?

The AS number of the neighboring AS is arranged at the far right of the AS_Path list in the BGP routing entry.

When BGP Speaker advertises routes learned from EBCP peers to IBGP peers, it does not change the next hop attribute of the routing information.

Local_Pref is only valid between EBGP peers and is not advertised to third-party ASs.

A route can only have one community attribute value.

4. About BGP Union, which of the following description is wrong?

The alliance divides an AS into several sub-ASs, and the AS outside the alliance still considers the alliance to be an A

Sub-autonomous systems in the alliance can use private AS numbers. For Huawei NE/AR routers, an alliance can configure up to 32 sub-autonomous systems.

Union can easily be detected AS routing loop inside, because the sub- AS operation is between the EBG

Alliance sub AS number, other than the default notice to the Union BGP peers.

5. When the ABR is NSSA region of the 5/7 type LSA when changing dedicated router, then the ABR can 7 classes LSA converted from 5 classes LSA polymerization.

True

False

6. As shown in the following figure, R1 and R2 establish the neighbor relationship of Level2. Which of the following statement about the R3 route entry is correct? (Multiple choice)

2020::/64 router will appear in the IP routing table.

2022::/64 router will appear in the IP routing table.

2019::/64 router will appear in the IP routing table.

2021::/64 router will appear in the IP routing table.

7. Which of the following statement about the Router-LSA of OSPFv3 is correct? (Multiple choice)

The data area of Router-LSA contains Link-Local address

The data area of Router-LSA contains the interface ID of the local neighbor

Similar to OSPFv2, the Option field exists in the header of the LSA instead of the data area of the Router-LSA

When the LSA header of LS type = 0x0001, represents LSA data area to Router-LSA

8. When judging LSA is old or new, will use the serial number of the reference models and age parameters, which the following statements about the two parameters are correct? (Multiple choice)

When the router receives two LSAs with the same sequence number and the same checksum, the smaller the age, the better

When the router receives an LSA, the age is set to 3600S, indicating that this LSA is unavailable

If the sequence number of the LSA reaches the end value Ox7FFFFFFF, the current router advertises the LSA whose age is 3600S

Both the serial number and age parameters can determine the old and new LSA, the router will give priority to the sequence to participate in the teaching, the larger the better

9. Command ip ip-prefix ip-prefix-name [index indexnumber{permit|deny}ipv4-address mask-length if a prefix list of less-equst has been specified, but greater-equal is not specified, then what is the scope of the prefix?

[0 ， less-equal-value]

[mask-lenath ， less-equal-value]

[ess-equal-value ， 32]

No limit

10. Which property subject to the following two conditions?

(1) BGP router A can choose whether to carry this attribute in the Update message.

(2) if the router B receives the packet's attribute Update packet, router B cannot recognize the property, but will also contain the property Update message is advertised by the curved path to c router c possible to identify and use The attribute. (Multiple choice)

Aggregator

laocl_Pref

Mult_Exit_Disc

Community

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11. Which of the following descriptions about MP-BGP is wrong?

The MP_UNREACH_NLRI of the update message does not contain the path attribute.

MP-BGP can be used to distribute labels.

MP_REACH_NLRI and MP_UNREACIH_NLRI are optional transitional attributes.

A complete MP_REACH_NLRI attribute structure contains address family, next hop and previous level information.

12. The data result of a certain router is as shown in the figure below. According to this analysis, which conclusion is correct?

The GE0/0/0 port of R3 and the neighbor are in different areas.

R3 is a Level-1 and Level-2 DIS on the link where Eth0/0/0 is located.

The circuit-level of Eth0/0/1 of the R3 router is Level-1-2.

Eth0/0/1 of the R3 router is enabled with both IPv4 and IPv6 ISI

13. Regarding the BGP route reflection, which of the following descriptions are correct? (Multiple Choice)

Cluster_List is an optional non-transitional attribute, used for ring prevention within a cluster.

The route learned from the client is advertised to all non-clients and clients of this R

a network is divided into a plurality of bone reflected ten clusters, each RR will further RR arranged non-clients, each RR is established between IBGP fully meshed.

The Originator_JD attribute is generated by the route reflector (RR), which is used to prevent loops between clusters.

14. Two EBGP neighbors connected by two parallel cables. What method will you use to achieve bidirectional load sharing between two EBGP neighbors connected through these two parallel serial cables?

Configure the loopback interface to establish an EBGP neighbor relationship and configure EBGP Multi-hop. Configure the loopback interface as the update source, and then use IGP to implement equal-cost path load sharing between addresses.

Without any method, BGP automatically implements load sharing between different autonomous systems on the available links.

Use the command at both ends "ebgp-load-balance

Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS must have two equal-cost paths to the EBGP neighbor loopback address. You need to use the command "next-hop-local".

Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS needs to import two equal-cost paths to the EBGP neighbor loopback address. You need to use the commands ebgp-max-hop and next- Hop-local

15. IPv6 introduces Solicited-Node address, which of the following description about the address is correct?

This is a specific address, which is used to resolve MAC addresses in ARPV6.

The Solicited-Node address on the router interface is automatically generated, and there can be multiple.

If the Solicited-Node address is not configured , the router will automatically generate one on each interface.

IPv6 introduces Solicited-Node address to support IPV6 multicast.

16. What message will be sent to the Agent when running NMS (Network Management Station) of SNMPV1?

Trap, Get and Set

Get, Set and Getnext

Get, Set, Getnext and GetBulk

Get, Set and GetBulk

Trap only

17. Under VXLAN, different VPN subnet need to access, wherein a subnet information follows, EVPN the RT10: 10both, RT1000: 100eport, VPN under RT100: 100. What is the configuration of another subnet? (Multiple choice)

Configure 1000:1000 bothevpn under VPN

Configure 1000 : 1000 both under EVPN

Configure 1000 : 1000 expot under EVPN

Configure 10 : 10both under VPN

18. If there is a run 802.1D spanning tree protocol Local Area Network. Which of the following parameters does non-root switch not receive from the root switch?

MaxAge

Root cost

Forward delay

Hold time

Hello time

19. About the description of CHAP authentication function in the PPP protocol, which of the following are correct? (Multiple Choice)

If the authenticator does not have a username, the password cannot be configured on the authenticated interface.

Calculate a hash value using the authentication sequence ID, random number, and key by the MD5 algorithm

Three-message interactive authentication is required, and the username is transmitted only on the network without transmitting the password.

The user name must be configured under the authenticated interface of CHAP authentication.

20. The two routers are connected through the serial port, but they cannot ping each other. Now check the port status as follows. Can you determine the cause from the above information?

The link is not wide enough

Subnet mask does not match

Inconsistent link layer protocols at both ends

The IP addresses of both ends are not on the same network segment

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21. Which of the following description on OSPFV3 message is correct? (Multiple choice)

The Option field of Hello and DD packets is extended to 24 bits

The LSR message contains the complete LSA header information to request to update the LSA

LSACK message contains LSA header information to confirm receipt of LSU message

The HHo message must contain the interface ID of the sending interface

22. When configured ISIS the area authentication, which ISIS packets will carry the Bands authentication information?

SNP and LSP of Level-1 of ISI

SNP and LSP of LeveL-2 of ISI

Hello packets of Level-1 of ISI

Hello packets of Level-2 of ISI

23. ISIS will elect DIS in the broadcast multi-access network. Which of the following statement about DIS is correct? (Multiple Choice)

ISIS elects the DIS by comparing the priorities and compares the MAC addresses if the priorities are the same.

DIS guarantees database synchronization by periodically sending CSNP messages

In a broadcast multi-access network, the DIS sends Hello PDUs three times as often.

DIS supports the preemption function. After the new DIS preemption is successful, you do not need to flood any LSP packets.

24. Which of the following statement about OSPF routing calculation is incorrect?

Compared with the PRC algorithm. The ISPF algorithm only calculates the changed leaf nodes when the route changes.

When the three, five or seven types of LSA change on the network, the PRC algorithm is used to recalculate the route.

When the first and second types of LSAs on the network change, OSPF uses the ISPF algorithm to recalculate routes.

The OSPF router uses the FULL SPF algorithm to calculate all nodes in the network when initially calculating the route.

25. The Level-1-2 IS will send Level-2 LSPs to the level-1 IS Level-1 area in the domain. If the ATT position in the Level-2 LSP is 1, it means the area Access to the external area through level-1-2 IS.

True

False

26. Which descriptions are correct about the BGP reflector? (Multiple Choice)

IBGP neighbor relationships need to be fully interconnected without a route reflector. The introduction of route reflectors can reduce the requirements for full interconnection

The route reflector can advertise the routes learned from the non-client to all clients.

The route reflector can advertise other clients and non-clients from the routes learned from one client.

The route reflector can advertise all clients and non-clients from routes learned from IBGP neighbors.

27. A router have received a community attribute of a No-Export of BGP routing, how does the router deal with the BGP routing?

Discard the route directly.

No longer communicate to other BGP routers.

Only advertise to IBGP neighbors.

properly advertise the route, but do not use the routing to forward data.

28. View LSP on a router, see the following results:

Which of the following statement is correct?

When sending a data packet with a destination address of 4.4.4.4, the packet is sent directly untagged.

When sending a data packet with a destination address of 2.2.2.2, send it directly without labeling.

When sending a data packet with a destination address of 3.3.3.3, tag 1026 and send it.

When the router receives a data packet with a label of 1024, it will change the label to 1027 and then send it.

29. You want to set the DSCP value of VoIP traffic in HW network equipment to EF.

According to the differentiated services model RFC, the flow mark EF should be set as _____.

DSCP is set to decimal 36

IPTos is set to 0xEF

IP Experimental ECN

DSCP is set to decimal 5

Bitstream 101110

30. You are now troubleshooting a LAN, and you are expecting the error to be caused by a mismatch in the working mode. Those switch interface errors indicate that the working mode of the 10/100/1000 IEEE gigabit interface does not match? (Multiple choice)

Alignment error

FCS error

Super small frame

Excessive conflict

Lagging conflict

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31. The HW equipment network administrator plans to migrate IGMPv2 to IGMPv3 in the multicast netbook. Compared with IGMPv2, what are the improvements of IGMPv3? (Multiple choice)

IGMPV3 adds the function of specifying a multicast group that does not join a specific multicast source for the host

IGMPV3 adds the function of specifying the host to join a specific multicast source

IGMPV3 adds Request-to-send ) d and Clear-to-send between source and local IGMP querier

IGMPv3 removes the Report-suppression function for membership reports

IGMPv3 removed in a wildcard multicast group join all source functions

32. The multicast IP address is 229.130.130.1, and its corresponding MAC address is __.

01-00-5E-12-82-01

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

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

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

33. What is the role of RT in MPLS VPN? (Multiple Choice)

Allow the peer PE to decide which VPNv4 routes to import into the specific VR

Allow the peer PE to decide which VPNv4 routes will not be imported into the specific VR

Allow the peer CE to decide which VPNv4 routes to import into the specific VR

Allow the peer CE to decide which VPNv4 routes will not be imported into the specific VR

34. The network administrator is going to use the 6to4 automatic tunnel to carry IPv6 data on the IPv4 network. The IPv4 address of the router interface is 138.14.85.210. So the corresponding tunnel address is 2001:8a0e:55d2:1:230:65ff:fe2:9a6

True

False

35. Between two directly connected devices that have established IBBP neighbors, execute the shutdown command to shut down the interface of one of the devices, and the BGP connection will not be disconnected immediately.

True

False

36. Which of the following description about OSPFV3 protocol authentication is wrong?

OSPFV3 can only use manual mode to establish SA

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

OSPFV3 authentication relies on the authentication header and encapsulation security payload header of IPv6 packets

An OSPFv3 protocol header is removed Autype and Authentication field

37. As shown in the figure, a company hopes to use MPLSVPN to realize secure mutual visits between the head office and each branch, and at the same time requires that the VPN traffic of the branch must be forwarded through the head office to monitor the traffic. Which of the following options about this solution are wrong?

BGP packets can be used between CE and PE to exchange VPN routing information.

Hub-CE and the Hub-PE when routing information is transmitted. Hub-PE needs to be configured to allow the receiving AS No. repeated a secondary route for receiving Hub-CE routes advertised

Hub-CE and the Hub-the PE, SpokA the PE- and Spoke-CE between. May be used 0SPF protocol to exchange routing information

Establish an MP-IBGP peer relationship between Spoke-PE and exchange VPN routing information.

38. Which of the following description about interfaces on the switch Access procedure receives data frame mode is correct?

In Access mode, when a tagged data frame is received, it is directly discarded.

In Access mode, the VLAN tag of the data frame will be stripped when sending.

In Access mode, only data without marking is received.

When the data frame enters the handshaker interface, the switch will learn the destination MAC address in the data frame.

39. As shown in the figure, three switches SW1, SW2 and SW3, where SW1 is the root bridge, the link between SW1 and SW2 is congested, and SW2 cannot receive the configuration BPDU sent by the root bridge. Which spanning tree protection mechanism does the administrator need to configure to prevent link congestion?

Loop protection

Root protection

TC-BPDU protection

BPDU protection

40. The OSPFv3 protocol is a separately developed protocol. It differs from OSPFv2 in that OSPFv3 is based on links rather than network segments. Which of the following statement is incorrect?

The two routers connected to the link can establish neighbor relationships even if their IPv6 address prefixes are different.

The two routers connected to the link can establish neighbor relationships even if no unicast IPv6 address is configured.

The routing information obtained by the OSPFv3 router from the neighbor uses the link-local address of the neighbor as the next hop of the forwarded packet.

All OSPFv3 interfaces use the Link-local address as the destination address of the packet except the virtual link.

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