Real Huawei H12-831_V1.0-ENU Exam Dumps with Correct 265 Questions and Answers [Q26-Q48] : Exam for engine : http://blog.test4engine.com

QUESTION 26
According to this picture, what can we judge? (Multiple choice)

The device type of R1 is definitely not Leve1-1

R1 has 6 IS-IS IPv6 routes

R1 does not have IS-IS IPv6 routing

IS-IS IPv6 must be enabled on GigabitEthernet0D/1 of R1

QUESTION 27
Configure ipv6 preference in IS-IS protocol view. The function of this command is to configure the priority of IPv6 routes generated by IS-Is protocol.

True

False

QUESTION 28
Please match 0SPFv3LSA with its transmission range.

LinkLsAlocallinkrange

QUESTION 29
Configure under a certain interface: isis timer hello 5 leve1-2, which of the following statements is correct?

The interval for sending Level-2 hello packets on this interface is 5s

The hello packet sending interval of Level-1 and Leval-2 of this interface is 3s.

The interval for sending Level-2 CSNP packets of this interface is 5s

The interval for sending Level-1 hello packets on this interface is 5s

QUESTION 30
Which of the following information can the DHCP binding table contain?

port andUDPport

MA, Caddress

IPaddress

lease time

QUESTION 31
Senior engineers with rich experience can quickly solve faults only by experience, with high efficiency.

True

False

QUESTION 32
A network engineer entered the following information when troubleshooting OSPF faults. Based on this, you can judge what causes the adjacency relationship to fail to be established normally?

Authentication passwords do not match

Inconsistent area type

Hell. Inconsistent message sending interval

interfaceIPInconsistent address masks

QUESTION 33
MPLS has the concept of FEC forwarding equivalence class, so FEC cannot be allocated based on which of the following standards?

Class of Service

Fragment of fiset

Application Protocol

Destination Addess

QUESTION 34
After the cutover is completeD. it is generally necessary to check the following items?

Software version

physical topology

data flow

control plane entry

QUESTION 35
Regarding the BGPI MPLS IPVPN network architecture, which of the following descriptions is wrong?

The P device only needs to have basic MPLS forwarding capabilities and does not maintain VPN related information

Sites can visit each other through VPN, and a site can only belong to 1 VPN

Under normal circumstances, CE equipment does not perceive the existence of VPN, and CE equipment does not need to support MPLS, MP-BGP, etc.

The BGP/MPLS IP VPN network architecture consists of three parts: CE (Customer Edge), PE (ProviderEdge), and P (Provider). PE and P are operator equipment, and CE is BGP/MPLS IPVPN user equipment.

QUESTION 36
In PLSVPN, in order to distinguish IPv4 prefixes that use the same address space, the value of R0 is added to the IPv4 address. The correct description of the following options is:

On a PE device, each VP instance corresponds to a value of 0. On the same PE device, the RD value must be unique.____, ____, ____.

RD can be used to control the publication of 1 routing information

RD is encapsulated in Update message as BGP extended community attribute during delivery

After the PE receives the IPv4 route from the CE, it adds RD to the IPv4 route to convert it into a globally unique VPN-IPv4 route, and publishes it on the public network

QUESTION 37
Compared with the OSPFv2 message header, what fields are added in the OSPFv3 message header?

IPV6 Auth Type

Link ID

Instance ID

IPV6 Router ID

QUESTION 38
As shown in the figure, all interfaces of the router enable OSPF. The IP address identified in the figure is the IP address of the oopback0 interface of the device. Loopback0 of R1 and R2 is advertised in area 1, Loopback0 of R4 is advertised in area 0, and Loopback0 of R3 and R5E are advertised in area 2, which of the following IP addresses can ping each other? (Multiple choice)

10.0.2.2 and 10.0.3.3. (Not counted when receiving Category 3 in non-backbone areas)

10.0.3.3 and 10.0.5.5 (Class 1 in the same area)

10.0.4.4 and 10.0.2.2. (3 types of normal calculation)

10.0.2.2 and 10.0.5.5 (not counted when receiving Category 3 in non-backbone areas)

QUESTION 39
As shown in the figure, OSPF is deployed in a campus, and Area 1 is deployed as an NSSA area. By default, R2 will automatically generate a Type 7 LSA default route and flood it in the NSSA area.

TRUE

FALSE

QUESTION 40
As shown in the figure, the entire network of a certain company uses OSPF to get through the network. However, RouterS and RouterE cannot establish an OSPF neighbor relationship. When detecting OSPF failures, network administrators can execute the display ospf 100 () interface GEO/0/1 command on RouterS to obtain error-related information. Users can perform OSPF failure diagnosis based on this information. (Please use English lowercase letters to complete the command, and the command cannot be abbreviated)

QUESTION 41
An engineer uses two routers to test IPv6 services, and simulates the interconnection between the headquarters and branches by running BGP4+. The logical topology of the network is shown in the figure. Regarding the transmission of IPv6 routes between the two devices, which of the following Is a statement wrong?

The Next_Hop attribute must be an IPv6 global unicast address when routing

BGP4+ transmits routing information between peers through Update packets

If the MP_REA, CH_NLRI attribute is carried in the Update packet, it indicates that the advertisement is a reachable route

When the route is transmitted, it will carry recognized mandatory attributes such as AS_Path

QUESTION 42
What is wrong with this configuration description is:

[Huawei]dhcp enable
[Huaweijinte GigabitEthernet 0/0/1 [Huawei-GigabitEthernet0/0/1 ]dhcp option82 insert en [Huawei-GigabitEthernet0/0/1 ]dhcp snooping enable [Huawei-GigabitEthernet0/0/1]dhcp snooping trusted

ifGigabitEthemnetOIO/1received by the interfaceDHCPIn the request message, there is noOption82of SutOptioninformation, the device will generateOption82,and insert it into the message

turn onDHCP Snoopingconfiguration can be used to preventDHCP ServerCounterfeiter Attack

configureGigabitEthernetO/0/lThe interface is a trusted interface

turn onDHCP Snoopingconfiguration can be used to preventARPspoofing attack

QUESTION 43
As shown in the figure, the operator’s BGP/MPLS IP VPN backbone network builds SP through DP. If you want to implement user X If the two sites communicate through the BGP/MPLS IPVPN network, PE1 and PE2 must use a 32-bit masked loopback interface address to establish an MP-IBGP peer relationship.

True

False

QUESTION 44
As shown in the figure, Site1 and Site2 need to achieve mutual access through the operator’s BGP/MPLS IPVPN. It is known that the public network tunnel between PE1 and PE2 has been established (the label information is shown in the figure), and PF1 has advertised the 192.168.1.0/24 network segment route in Site1 to PE2 through the MP.JIBGP neighbor relationship, and the route learning is normal.

When capturing the data that Site2 visits the 192.168.1.0/24 of Site1 between P and PE1, what should be the outermost label?

6661

6662

8888

QUESTION 45
The network administrator A wants to use ACL to match only the four routing entries 1, 3.5, and 7 in the figure. How many ACL rules does the network administrator A need to configure at least?

QUESTION 46
In the VLAN aggregation technology, multiple Sub-VLANs are used to isolate the wide recruitment area, and these Sub-VLANs are aggregated into a logical Super-VLAN. A company divides different departments into different Sub-VLANs because of the Sub-VLAN. VLAN not only includes physical connections, but also can establish a three-layer VLANIF interface, which can directly communicate with the external network on the three-layer.

TRUE

FALSE

QUESTION 47
From the user’s point of view, any phenomenon that affects the business can be defined as a failure.

TRUE

FALSE

QUESTION 48
multiple equal-cost routes may appear. About the IS-IS network , which of the following descriptions is false?

When the number of equal-cost routes in the network is greater than the number configured by commands, and these routes have the same priority, the next-hop device is preferredSystem IDLarge routes for load balancing

If load sharing is configureD. the traffic will be evenly distributed to each link

After configuring equal-cost route priorityJS-ISWhen the device forwards the traffic reaching the destination network segment, it will not adopt the load balancing methoD. but forward the traffic to the next hop with the highest priority

For each route in the equal-cost route, a priority can be specifieD. and the route with higher priority will be preferred. the rest as backup routes