Most UptoDate Huawei H12-261_V3.0 Exam Dumps PDF 2022 [Q160-Q182] : Exams Labs Braindumps : http://blog.examslabs.com

NO.160 Which of the following statements about OSPF route filtering is incorrect?

In the NSSA area, filtering for external route import and advertisement can be configured on ASBR or ABR.

Filtering for three types of LSAs needs to be configured on ABRs between OSPF areas

Filter LSA based on interface, can filter in and out direction, except Grace All LS except LSAA

When calculating routes based on the link state database, use filter-policy import command, this filtering method only affects the routing entries in the routing table. plus, for OSPF the link state database has no effect

NO.161 When configuring AS-Path-Filter, ipas-path-filter10 permit _100$ means matching the route received from AS100 but not originated from AS100

TRUE

FALSE

NO.162 BGP4+ is running between the two routers, and the neighbor relationship is normal, but the BGP routing table of the local router does not have any neighbor routing entries. The following possible reasons are:

The routing entry in the peer BGP routing table is not optimal.

The next hop address of the BGP route entry is unreachable?

The peer is configured with peer ignore

The peer is configured with active-route-advertise

NO.163 When the payload is an ICMPY6 packet, if the extension header is not considered, what is the value of the Next Header field in the IPv6 header?

78

68

58

55

NO.164 Which of the following features does the IS-IS protocol have?

The bottom layer is the data link layer

Suitable for large-capacity routing transmission

Good scalability

Network element level division is not supported

NO.165 In the broadcast network of OSPF, there are 4 routers RTA, RTB, RTC and RTD in the same network segment, their DR priorities are 2, 1, 1 and 0 respectively, and the Router IDs are 192.168.1.1 and 192.168.2.1 respectively. , 192.168.3.1 and 192.168.4.1,. If the OSPF protocol is enabled on these four routers at the same time, the BDR selected by OSPF is

RTB

RTA

RTD

RTC

NO.166 When the administrator wants to manage some routes on the router during operation and maintenance, which of the following tools can mark these routes for easy management?
Admin configuration policy?

If the BGP protocol is running, use the community attribute to mark the route

Use ACLs to mark routes on routers.

Use tagsThe value marks the route on the router.

use ip-prefix in The route is marked on the router.

NO.167 HW users are transferring a very large number of files via TFTP. What protocol does TFTP rely on for transmission?

ICMP and UDP

IP and TCP

UDP

NFS

FTP

NO.168 Which properties meet the following two conditions:
BGP router A can choose toWhether the Update packet carries this attribute.
If Router B receives aAfter the Update message, Router B does not recognize the attribute, but also advertises the Update message containing this attribute to Router C.
Router C may recognize and use this attribute.
(multiple choice) ( confirmed)

Aggregator

Local-Pref

Multi Exit-Disc

Community

NO.169 Which of the following statements about the BFD single-arm echo function is correct

BFDThe one-arm echo function must configure the local identifier and the terminal identifier

BPThe default destination IP address of the protocol packet of the D one-arm echo is 224.0.0.184

BAfter the FD one-arm echo function is enabled, the destination IP and source IP of BFD packets are the same

BFDThe one-arm echo function is suitable for scenarios where one device supports BD and the other device does not.

NO.170 four routersR1, R2, R3 and R4 run ISIS, The ISIS router type has been marked in the figure, and the area addresses of the four routers are all 49.0001.The result of checking the routing table on R1 is as follows. The reason why R1 does not reach the route to 10.34.34.4 is because

The routing policy configured on R2 filters out the default route

System-ID of R2 andR3 conflict

Territorial planning errors for R3 and R4

System-ID of R2 andR1 conflict

NO.171 IS-IS is a link-state routing protocol. Uses SPF. The algorithm performs routing calculation. As shown in the figure, a campus has deployed IPv4 at the same time.4 and IPv46 and run IS-IS realize network interconnection, among whichR2 Only IPv4 is supported, close. Which of the following statements is true regarding the topology calculation of this network?

By default, sinceR2 IPv6 is not supported, so IPv66 In the shortest path tree formed by the network calculation, R1 accessR4 The path is . R1-R3-R4

if you wish IPv44 and IPv46 The network computations form the same shortest path tree, which needs to be passed through ipv6 enable topology ipv6 Order enable IS-IS IPv4 under process6 Ability

By default, IPv6 In the shortest path tree formed by network calculation,R1 accessR4 The path is
.R1-R2-R4, becauseR2 IPv6 is not supported, soR2 Receive IPv46 The packet will be discarded directly, resulting in loss of traffic.

By default, IPv4 and IPv46 The network will be calculated separately to form different shortest path trees

NO.172 Which of the following statements is false about TCP’s sliding window? (Multiple Choice)

The sender announces the initial window size

The sender does not need to transmit the full window size of the message

TCPSliding window allows multiple packets to be sent before an acknowledgment is received

After the retransmission timer expires, the sender has not received the acknowledgment and will retransmit the unacknowledged data

The receiver needs to confirm the data packet of the sender

Sliding window size can only increase or stay the same

NO.173 VXLAOne BD in N can correspond to multiple VNIs.

True

false

NO.174 Which of the following options may affect the establishment of IBGP neighbors?

iBGP-Multi-hop not configured

Authentication failed

IGP routing failure

Inconsistent BGP protocol versions

NO.175 BGP4+ carries the next-hop address of the IPv6 route through the next-Hop attribute in the Update packet.

TRUE

FALSE

NO.176 There is an existing router running OSPF connected to Area 0 and Area 1. You have configured area 1 as a stub area. What types of LSAs only operate in area 1?

Category 7 LSA

Type 1 LSA and Type 2 LSA

Type 1 LSA, Type 2 LSA and Type 5 LSA

Type 3 LSA and Type 4 LSA

Type 1 LSA, Type 2 LSA and Type 3 LSA

NO.177 As shown in the figure, in the HUB&Spoke networking mode of MPLS BGP VPN, in order to realize that the branch can only communicate with the headquarters and cannot communicate with each other, which of the following schemes can be used for the RT setting?(single choice)

headquarters: Import Target: 12:3; Export Target: 12:3 Division 1: Import Target: 12:3; Export Target:
12:3 Division 2: Import Target: 12: 3; Export Target: 12:3

headquarters: lmport Target: 1:1; Export Target: 3:3 Division 1: Import Target: 3:3; Export Target: 1:1 Division 2: Import Target: 3:3; Export Target: 2:2

headquarters: Import Target: 2:2; Export Target: 3:3 Division 1: Import Target: 3:3; Export Target: 1:1 Division 2: Import Target: 3:3; Export Target: 2:2

headquarters: Import Target: 12:3; Export Target: 3:12 Division 1: Import Target: 3:12; Export Target:
12:3 Division 2: Import Target: 3:12; Export Target: 12:3

NO.178 As shown in the figure, a company has built an OSPF network. The links in the figure all form an OSPF adjacency relationship, and all OSPF devices announce their own loopback interface addresses. One day, the two links of S1-R2 and S2-R1 suddenly failed. In order to check whether the network is running normally, the engineer checked the equipment status. Which of the following descriptions is correct?

R5 can learn the loopback route of R2 normally

R3 cannot learn the loopback route of R2

R1 can normally learn the loopback route of R2

R3 can learn the loopback route of R2 normally

NO.179 ISIS Elections in Broadcast Multiple Access NetworkDIS, which of the following statements about DIS is correct?

ISIS elects by comparing prioritiesDIS, if the priority is the same, compare the MAC address

In a broadcast multiple access network,DIS sends Hello three times as often PDU

DIS ensures database synchronization by periodically sending CSNP messages

The DIS supports the preemption function. After the new DIS is successfully preempted, it does not need to flood any LSP packets.

NO.180 Which of the following descriptions about PPPoE data frames is correct?

Once a PPPoE session is established, all Ethernet packets are unicast

Ethernet-Typee The domain is fixed at 0x8863

When PPPoE transmits session data, Code must be set to 0x0

PPP Session of the session-ID is not allowed to change, it must be specified in the Discovery phase

NO.181 IPSG can statically configure the binding table, orDHCP-Snooping is used together to form a binding table

True

false

NO.182 What is the protocol number of the IP header of the VRRP packet?

116

118

112

114