[Q130-Q152] Top Huawei H12-831_V1.0-ENU Courses Online - Updated [May-2022] : IT Certification Exam Braindumps : http://blog.braindumpsit.com

QUESTION 130
From the user’s point of view, any phenomenon that affects the business can be defined as a fault.

True

False

QUESTION 131
Regarding BGP/MPLS IPVPN data forwarding, which of the following descriptions is wrong?

data inB, CP/MPLS IP VPNWhen the backbone network is transmitted, it always carries two layers of labels

The inner label when data is forwarded is defined byMP-BGPdistribute

The outer layer label when data is forwarded can beLDPdistribute

PEsend toCEThe data isIPv4Genuine

QUESTION 132
Which of the following are static information coking analysis? (Multiple choice)

Interface type

Packet loss rate

License

Device type

QUESTION 133
From the user’s point of view, any phenomenon that affects the business can be defined as a failure.

TRUE

FALSE

QUESTION 134
There is the concept of forwarding equivalent FEC in MPLS. Which of the following descriptions is wrong? (Multiple choice)

MPLS classifies packets with the same forwarding processing method into one category, which is called FEC

A forwarding equivalence FEC will be assigned a unique label value on all routers

The packets of the same FEC will be processed differently in the MPLS network

The division of FEC is very flexible. It can be based on any combination of source address, address, source port, destination port, protocol type or VPN, etc.

QUESTION 135
EGP authentication can prevent illegal routers from establishing neighbors with BCP routers. BCP authentication can be divided into MD5 authentication and Keychain authentication. Which of the following BGP messages will carry BCGP Keychain authentication information? ((Multiple choice)

Open

Update

Notification

Keepalive

QUESTION 136
According to this picture, what can we judge? (Multiple choice)

R4 belongs to Leve1-2 only

The device whose system-ID is ee8c. a0c2.baf2, and its type is Level-1-2

The device with system-ID ee8a0c2.baf2, its type is Leve1-1

R4 belongs to Level-1 only

QUESTION 137
As shown, all routers run OSPF. Which of the following statements is correct?

R2in the area1and area0will generateRouter LSA

R2WillR3GeneratedRouter LSAforward toR1

R2WillR1GeneratedRouter LSAforward toR3

R2only in area0generated inRouter LSA

QUESTION 138
Which of the following commands can be used to view BGP VPNv4 routing and BGP private network routing information on the PE?

display bgp routing-table address-family vpnv4

display bgp vpnv4 routing-table

display bgp routing-table ipv4-family vpnv4

display vpnv4 bgp routing-table

QUESTION 139
In the network shown in the figure below, to implement a remote LDP session between SWA and SWC. the following The law is correct

No need to specify the correct equivalentlsr-id

The configuration in the figure can already be realized

You need to create a remote peer, and then specify the peer’slsr-id

Need to be equipped with a direct connection port to establishTCPconnect

QUESTION 140
Which of the following statements about MUX VLAN are correct? (Multiple choice)

Each Group VLAN must be bound to a Principal VLAN

Separate VLAN can communicate with all VLANs in MUX VLAN

Each Separate VLAN must be bound to a Principal VLAN

Principal VLAN can communicate with all VLANs in MUX VLAI

QUESTION 141
Regarding multi-instance CE (Mlulti-VPN-Instance CE, MCE), which of the following descriptions is wrong?

existMCEdevice needs to be differentVPNCreate their own routing table and bind to the correct interface

connected to the sameMCEbut not oneVPNInstance users cannot access each other

haveMCEfunctional devices can be found inBGPIMPLS IP VPNAccess to multiple applicationsVPNExample, reduce the investment of user network equipment

MCEandPEThere must be multiple physical links betweenVPINIsolation between instances

QUESTION 142
Which of the following series can be matched by the regular expression 100.S? (Multiple choice)

100

1000

10000

1001

QUESTION 143
Regarding BGP/MPLS IPVPN routing interaction, which of the following descriptions is wrong?

The egress PE can send IPv4 routes to the remote CE through BGP, IGP or static routing

After the egress PE receives the VPNv4 route advertised by the ingress PE, it filters the VPNv4 route according to the RT attribute carried by the route

The exchange between PE and CE is IPv4 routing information

The ingress PE changes the IPv4 route received from CE to VPNv4 route, and saves it according to different VPN instances

QUESTION 144
The IS-IS neighbor relationship between R3 and R1 is not established. According to the information in this figure, what is the possible reason?

R3andR1ofIIHAuthentication failed

R3andR1ofSystem IDrepeat

R3andR1ofI5-LevelMismatch

R3andR1the interconnect interfacecircuit-typeMismatchWhen troubleshooting MSTP faults, you executed the display current-configuration command to obtain

QUESTION 145
MPLS is called multi-protocol label switching. Which description is correct about the label in MPLS? (Multiple choice)

MPLS system has a variety of label publishing protocols, such as LDP is a label publishing protocol

The label is carried by the header of the MIPLS message and has a global meaning, that is, the label value of all routers cannot be repeated

A label is an identifier with a fixed length and only local meaning, which is used to uniquely identify the FEC to which a group belongs

MPLS supports single-layer labels as well as multi-layer labels

QUESTION 146
Display interface GE0/0/0 once, and find that the Total Eror count (the total number of error packets on the physical layer of the interface) is not 0. At this point, it can be concluded that the current fault has not disappeared.

TRUE

FALSE

QUESTION 147
BFD session down will cause the direct link to fail.

TRUE

FALSE

QUESTION 148
A certain park deployed both IPv4 and IPv6 networks for service testing, and IS-IS was run to achieve network interconnection. IS-IS routing protocol has good scalability and is widely used in existing networks.
Regarding IS-IS scalability, which of the following statements are correct? (Multiple choice)

IS-IS uses TLV structure to construct messages, which makes IS-IS more flexible and expandable

For IS-IS, adding new features only needs to add a new TLV

IS-IS needs to add TLV to carry Pv6 address information in order to support PV6

NLPID is a new TLV of IS-IS to support IPv6

QUESTION 149
Which of the following statements is true about the role of ping and tracert?

Pingthrough one-wayicmp echo requestPacket inspection and bidirectional reachability of the correct end

TracertMust be able to trace every hop from source to destinationIPaddress

pingThe reachability from the local end to the peer end is verifieD. but it does not mean that the peer end to the local end must be reachable

tracertandpingThe function is the same, just the name is different

QUESTION 150
A campus has deployed IPv6 for service testing. There are 4 routers in the network, running 0SPFv3 to implement IPv6 network interconnection. As shown in the figure, an engineer checked the LSDB of R2 and intercepted one of the Link-LSAs. Which of the following statements is true about the description of this LSA?

The router that generates this LSA is R2 port R2 connected

IPv6 address prefix for GEO/0/0: 2001:DB8:2345:23::/64

The link-local address of R2 interface GEO/0/0 is: FE80::2E0:FCFF:FEC, D:4F79

The SA shows 2 does not support external routing, but participates in IPv6 routing calculation

QUESTION 151
Which of the following descriptions is wrong?

The LSP established by statically assigning labels can also be dynamically adjusted according to network topology changes without the intervention of the administrator

The principle to be followed for manual label allocation is: the value of the outgoing label of the upstream node is the value of the incoming label of the downstream node

LSP is divided into static LSP and dynamic LSP. The static LSP is manually configured by the administrator, and the dynamic LSP is dynamically established using the label protocol

Dynamic LSP is dynamically established through label distribution protocols, such as MP-BGP, RSVP-TE, LDP

QUESTION 152
Configuring DHCP Snooping can be used to prevent imitator attacks, so the configuration process needs to include the following What are the steps?

enable globalDHCP SnoopingFunction

enable globalDHCPFunction

Configure Interface Trust Status

enable interface orVLANofDHCP SnoopingFunction