ActualVCE H12-261-ENU dumps & HCIE-R&S Sure Practice with 525 Questions
New H12-261-ENU Exam Questions| Real H12-261-ENU Dumps
NEW QUESTION 189
Use the ip as-path-filter as-path-filter-number {deny | permit} regular-expression command to configure the as-path filter.
In this command, multiple clauses can form an as-path-filter statement.
So what is the relationship between multiple statements?
- A. The routes are matched in order. When a route matches a clause, it no longer matches downwards.
- B. The routes are matched in order and the route needs to match all the clauses.
- C. Relationship or
- D. Relationship with
Answer: A
NEW QUESTION 190
Which of the following is the correct description of the process of registering the source DR with the RP in the PIM-SM?
- A. The registration message encapsulates the multicast service data.
- B. The registration message is a multicast message.
- C. The RP sends a registration stop message as soon as it receives the registration message.
- D. The registration message is used to construct an RPT tree between the source DR and the RP.
Answer: A
NEW QUESTION 191
About the description of CHAP authentication function in the PPP protocol, which of the following are correct? (Multiple Choice)
- A. If the authenticator does not have a username, the password cannot be configured on the authenticated interface.
- B. Calculate a hash value using the authentication sequence ID, random number, and key by the MD5 algorithm
- C. Three-message interactive authentication is required, and the username is transmitted only on the network without transmitting the password.
- D. The user name must be configured under the authenticated interface of CHAP authentication.
Answer: B,C,D
NEW QUESTION 192
Which of the following attributes cannot be directly referenced by the if-match of a routing policy?
- A. IP-prefix
- B. Regular expressions
- C. As-Path-filter
- D. Community-filter
Answer: B
NEW QUESTION 193
In the process of using the LACP protocol, which of the following descriptions are correct? (Multiple Choice)
- A. You can configure the source IP address for load balancing in the enabled link aggregation group by using the following command: Interface eth-trunk 1 Load-balance src-dst-ip
- B. You can add member interfaces to the link aggregation group enabled by the following command: Interface GigabitEthernet0/0/1 Debug Interface GigabitEthernet0/0/1 Trunkport GigabitEthernet0/0/1 Interface GigabitEthernet0/0/1 Undo shutdown
- C. You can prevent the Eth-Trunk interface from frequently flapping due to physical link reasons. Interface eth-trunk 1 Lacp preempt enable Lacp preempt delay delay-time
- D. You can remove a member interface in an enabled link aggregation group by using the following command: Interface GigabitEthernet0/0/1 Debug Interface GigabitEthernet0/0/1 Undo eth-trunk 1 interface GigabitEthernet0/0/1 Undo shutdown
Answer: C,D
NEW QUESTION 194
Which of the following is true about Link-LSA of OSPFv3?
- A. Contains both the link-local address of the interface and all Ipv6 prefixes in the same area on the router.
- B. If the Prefix Option field of a prefix of the Link-LSA is 0x00, the Prefix will not be included in the IPv6 unicast calculation.
- C. Contains both the link-local address of this interface and all IPv6 prefixes of this interface.
- D. The Option field exists in the LSA header, not in the data area of Link-lsa.
Answer: C
NEW QUESTION 195
After the BGP connection is successful, then down, what are the reasons for the impossible?
- A. Received incorrect BGP packets.
- B. The mandatory attribute in the routing update message is lost.
- C. After the BGP connection is established, the keepalive packet is not received within the negotiated holdtime.
- D. Open packet negotiation failed.
Answer: D
NEW QUESTION 196
Regarding the way the device handles packets in the MPLS network model, which of the following description is wrong? (Multiple Choice)
- A. The device discards the IP packets entering the MPLS domain.
- B. Both LER and LSR will carry out label distribution.
- C. LSR must not strip labels.
- D. The label forwarding path LSP is determined and established through various protocols during the forwarding of the packet.
Answer: A,D
NEW QUESTION 197
Two routers are connected through the serial port, but the interconnection interface cannot be pinged. Now check the port status as follows, which is the possible reason? (No figure is shown, one PPP, and one HDLC, you can find the reason.)
- A. Link bandwidth is not enough
- B. The IP address is not on the same network segment.
- C. Subnet mask does not match
- D. Link layer protocol is inconsistent
Answer: D
NEW QUESTION 198
The Type 5 LSA in OSPF are used to pass external routes. Which of the following statements about the Type 5 LSA are wrong?
- A. Configure the corresponding policies on the ABR and ASBR to filter the Type 5 LSA.
- B. Type 5 LSAs are advertised by the ASBR and flooded in the OSPF network in the non-Stub/NSSA area.
- C. The router in the same area as the ASBR can calculate the external route through the intra-area LSA and the Type 5 LSA.
- D. The FA address is included in the Type 5 LSA, and the FA address is 0.0.0.0, but has no practical effect as a reservation.
Answer: D
NEW QUESTION 199
Regarding BGP route filtering, what is wrong with the following description? (Multiple Choice)
- A. The filtering relationship between the nodes of the Route-Policy is "or", that is, if it is filtered by a node, it can pass route-policy.
- B. In the same node of Route-Policy, the relationship of multiple if-match clauses for different attributes is "OR".
- C. For a locally advertised route, configure a routing policy. The policy takes effect before the route is added to the BGP routing table.
- D. When receiving a route of a BGP peer, perform a routing policy to filter unwanted BGP routes. These routes are not added to the local BGP routing table.
Answer: B,C
NEW QUESTION 200
Which of the following descriptions are correct about the PPPoE data frame? (Multiple Choice)
- A. The Session_ID of the PPP session is not allowed to change, it must be specified in the Discovery phase.
- B. Once the PPPoE session is established, all Ethernet packets are unicast
- C. The Ethernet_Type field is fixed to 0x8863.
- D. When PPPoE passes session data, Code must be set to 0x0.
Answer: A,B,D
NEW QUESTION 201
BGP can only automatically aggregate routes originating from Incomplete.
- A. True
- B. False
Answer: A
NEW QUESTION 202
In order to reduce the number of OSPF routes in some stub areas, OSPF has developed a special area function. Which of the following description about the OSPF special area is correct?
- A. As -External-lsa is released to the Stub area
- B. Any OSPF area can be configured as a special area.
- C. ASBR-Summary-LSA is allowed to be advertised to the NSSA area.
- D. Special area routers cannot establish OSPF neighbor relationships with regular area routers.
Answer: D
NEW QUESTION 203
As shown in the following figure, the corresponding peer relationship is established. The AS400 receives the 1.1.1.1/32 network route from the AS100. What is the AS-Path attribute?
- A. 400 300 200 100
- B. 300 200 100
- C. 100 200 300
- D. 100 200 300 400
Answer: B
NEW QUESTION 204
If the Option field 0X000013 in the OSPFv3 Hello packet sent by GigabitEthernet 0/0/0 port of Router A, which of the following descriptions are correct? (Multiple Choice)
- A. GigabitEthernet0/0/0 of Router A belongs to the NSSA area.
- B. GigabitEthernet0/0/0 of Router A will participate in IPv6 route calculation.
- C. Router A supports AS-ExternaI-LSA flooding
- D. Router A is an OSPFv3 device with forwarding capability
Answer: B,C,D
NEW QUESTION 205
VXLAN needs to be accessed under different VPN subnets. One subnet information is as follows. EVPN RT 10:10 both, RT 1000:1000 export, VPN RT 100:100. What is the configuration of another subnet? (Multiple Choice)
- A. EVPN configuration 1000: 1000 export
- B. EVPN configuration 1000: 1000 both
- C. VPN configuration 1000:1000 both evpn
- D. VPN configuration 10:10 both
Answer: B,C
NEW QUESTION 206
The configuration of two routers in a company is as follows. which of the following statement about the R1 routing table is correct?
- A. If the priority of the R2 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.0.2.2/32 on R1 is generated by ISIS.
- B. If the priority of the R1 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.0.2.2/32 on R1 is generated by ISIS.
- C. Only when the priority of the R2 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.1.2.2/32 on R1 is generated by OSPF.
- D. If the priority of the ISIS protocol of R1 is adjusted to 5, the P route entry of the destination network segment with the destination network segment of 10.1.2.2/32 is generated by OSPF.
Answer: B
NEW QUESTION 207
During the process in which IS-IS establishes a neighbor relationship, IS-IS does not send CSNP packets on a P2P network.
- A. False
- B. True
Answer: A
NEW QUESTION 208
About the domain-authentication-mode md5 hello command in the ISIS process, which of the following is the correct explanation?
- A. This command is mainly used to enable ISIS Hello packets to carry authentication information during the delivery process.
- B. The domain authentication mode of all routers in the same routing domain is MD5, the password is hello, and the ISIS SNP and LSP spread normally.
- C. ISIS certification cannot be applied in IPv6 environment.
- D. The routing domain authentication is used to enable SNPs and LSPs of Level-1 and Level-2 to carry authentication information during the delivery process.
Answer: B
NEW QUESTION 209
Which of the following is the correct description of the Register message in PMSM? (Multiple choice)
- A. Register message enables the RP to learn multicast source information.
- B. Register message is sent by the receiver router
- C. Register message is sent by the source DR
- D. Register message is sent to the RP by unicast instead of multicast.
Answer: A,C,D
NEW QUESTION 210
Regarding the characteristics of CE dual-homing, which description is wrong?
- A. The CE is connected to the backbone network through two links. The two links can be used as both load balancing and active/standby links.
- B. The VRFs of two PEs connected to the same CE can belong to different VPNs.
- C. In the CE dual-homing network, loops may occur, and route-tags can be used to solve loop problems.
- D. CE and PE form a CE dual-homed network to ensure high network availability.
Answer: C
NEW QUESTION 211
The network administrator defines a traffic policing strategy such as
[Huawei] display traffic policy user-defined
User Defined Traffic Policy Information:
Policy: p1
Classifier c1
Operator: OR
Behavior: b1
Committed Access Rate:
CIR 256(Kbps), PIR 0 (Kbps) CBS 48128 (byte), PBS 80128 (byte)
Color Mode: color blind
Conform Action: pass
Yellow Action: pass
Exceed Action: discard
statistic: enable
The router port that uses this policy has been idle for about 10 seconds. At this time, there are huge bursts of c1 type traffic coming in an instant, so how many bytes will be colored in the green packet?
- A. 32K bytes
- B. 48128 bytes
- C. 2K bytes
- D. 80128 bytes
Answer: B
NEW QUESTION 212
The following statement about cross-domain MPLS VPN, which is the wrong description?
- A. For the cross-domain vPN-OptionB mode, an MP-eBGP neighbor relationship needs to be established between the two ASBR.
- B. For the cross-domain vPN-OptionB mode, two ASBR are interconnected by multiple interfaces (including sub-interfaces). Each interface is associated with one VPN. Each ASBR-PE uses the peer as the CE.
- C. For the cross-domain vPn-OptionA mode, the route between the two ASBR is a common IPv4 route.
- D. When the public network label is only LDP, the cross-domain vp-Option-c scheme 2 needs to use three-layer labels in the packet forwarding process.
Answer: B,D
NEW QUESTION 213
Which of the following statements is true about the database synchronization process on an IS-IS broadcast network?
- A. As the DIS, R2 sends a CSNP packet periodically.
- B. As the DIS, R2 does not receive the PSNP requests from other routers.
- C. The interval at which R2, as the DIS, sends Hello packets is three times that of other routers.
- D. R1 and R3 maintain the database consistency by sending PSNP packets periodically.
Answer: A
NEW QUESTION 214
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