H12-821_V1.0 Exam Questions
1,196 real H12-821_V1.0 exam questions with expert-verified answers and explanations. Page 9 of 24.
- Question #401IPv4 Routing Technologies
Regarding the description of the above output information, which one is wrong?
OSPFrouting table analysisdisplay outputoptimal route - Question #402IPv6 Technologies
When receiving which of the following messages, the DHCPv6 server will not reply with a Reply message?
DHCPv6Reply messageRelease messageDHCPv6 message types - Question #403Network Security
Which of the following descriptions of MAC address spoofing attacks is incorrect?
MAC spoofinglayer 2 securityMAC learningswitch security - Question #404IPv4 Routing Technologies
Which of the following descriptions of problems caused by the mutual introduction of BGP and IGP is wrong?
BGP IGP redistributionroute flappingAS stabilityrouting loop - Question #405IPv4 Routing Technologies
Which of the following origin attribute is used to define the source of path information and mark how a route becomes a BGP route. Which of the following is the correct ranking of...
BGP Origin attributepath attribute priorityIGP EGP Incomplete - Question #406IPv4 Routing Technologies
Which of the following descriptions about OSPF DR/BDR is wrong?
OSPF DR BDR electionneighbor negotiation2-way stateP2P link - Question #407MPLS and MPLS VPN
Which of the following is a VPN technology that neither supports user identity authentication nor data encryption and verification?
MPLS VPNVPN authenticationVPN encryptionL2TP GRE IPSec - Question #408Network Management and O&M
The network management functional model defined by OSI is divided into multiple functional areas. Which of the following does not belong to this functional area?
OSI management modelFCAPSnetwork management functional areas - Question #409IPv4 Routing Technologies
By default, how many seconds is the retransmission interval of LSP messages on a point-to-point link?
IS-IS LSPretransmission intervalpoint-to-point link - Question #410Network Security
Which of the following descriptions about OSPF packet authentication is incorrect?
OSPF authenticationinterface authenticationarea authenticationencryption vs integrity - Question #411IPv4 Routing Technologies
Which of the following is not a feature of OSPF?
OSPF featuresDUAL algorithmSPF algorithmEIGRP vs OSPF - Question #412IPv4 Routing Technologies
Which of the following descriptions of VRRP versions is incorrect?
VRRPv2 VRRPv3VRRP authenticationIPv4 IPv6 supportadvertisement interval - Question #413Layer 2 Technologies
In a WLAN network, when there is an IPv4 Layer 3 networking between the AC and AP, the user needs to configure the Option43 field. Which of the following functions does it mainly i...
WLAN AC APDHCP Option43AC discoveryLayer 3 networking - Question #414IPv4 Routing Technologies
The output information of a certain router is shown in the figure, so which one of the following descriptions is correct? <R2>display ospf interface GigabitEthernet 0/0/0 verbose O...
OSPF interface displayDR BDRRouter IDCLI output interpretation - Question #415IPv4 Routing Technologies
The route-policy defined by a router is as shown in the figure. [HUAWEI]ip ip-prefix 1 permit 11.1.0.0 16 [HUAWEI]route-policy test-set cost permit node 10 [HUAWEI]route-policy if-...
route-policyip-prefixpolicy node matchingapply cost - Question #416IPv4 Routing Technologies
As shown in the figure, R1 and R2 have configured the local sending time interval, the local receiving time interval and the local BFD detection multiple in BFD. BFD Session R1 TX:...
BFD query modedetection time calculationTX RX intervalsdetection multiplier - Question #417IPv4 Routing Technologies
A certain router runs ISIS, and its interface output information is as shown in the figure. <R1>display isis interface verbose interface information for ISIS(1) Interface Id IPv4.S...
IS-IS interfacecircuit type Level-1display command outputhello timer - Question #418IPv4 Routing Technologies
The neighbor information of the router R1 is as shown in the figure. <RTA>display ospf peer OSPF Process 1 with Router ID 1.1.1.1 Neighbors Area 0.0.0.0 interface 10.1.1.1(Ethernet...
OSPF neighbor statemaster slave electionDR BDRdisplay ospf peer - Question #419IPv4 Routing Technologies
As shown in the figure, R1 and R2 are in a backup group. After R2 fails, R1 becomes the Master device. [Image showing R1, R2, SW, PC1, PC2 with IP addresses and VRRP priorities. R1...
VRRP preemptionmaster recoverypriority comparisonbackup group - Question #420Network Security
The ACL configuration of a router is as shown in the figure. [Huawei] acl adv 3000 [Huawei-acl-adv-3000] rule 3 deny tcp source 192.168.1.0 0.0.0.255 destination 10.167.12.1 0 dest...
ACL ConfigurationNetwork SecurityTraffic FilteringPermit/Deny Rules - Question #421IPv4 Routing Technologies
Which of the description of this information is wrong?
BGP network commandimport-routeBGP routing tabledisplay bgp - Question #422Layer 2 Technologies
As shown in the figure, three switches run the MSTP protocol. So how many seconds is the convergence time for the ports connected to SW2 and SW3?
MSTP convergenceSTP timersspanning treeport transitions - Question #423IPv4 Routing Technologies
Which of the following tools cannot be used for route filtering?
route filteringroute policiesprefix listsACL fundamentals - Question #424IPv4 Routing Technologies
In the network as shown in the figure, which of the following descriptions about R4 preferred routing is correct?
BGP Route SelectionMED AttributeInter-AS RoutingBGP Decision Process - Question #425IPv4 Routing Technologies
Which of the following descriptions of router classification in IS-IS is incorrect?
IS-IS Level-1 Level-2router adjacencyLevel-2 LSDBrouter type - Question #426Layer 2 Technologies
As shown in the figure, STA and STB run the RSTP protocol, and the Cost of Path remains the default. Which of the following descriptions of device and port status is correct?
RSTP Port RolesSpanning Tree ProtocolBridge SelectionNetwork Topology - Question #427VRP Basics and Advanced Features
In the data processing process of network equipment, with the switching network board as the center, the packet's journey through the equipment can be divided into "upstream" and "...
VRP packet processingswitching network boardACLinterface board pipeline - Question #428VRP Basics and Advanced Features
Which of the following descriptions of stack topology connection methods is incorrect?
Stack topologyRing topologyLink topologySwitch redundancy - Question #429Network Security
In the USG series firewall, what is the security priority of the DMZ zone?
firewall zonesDMZ security priorityUSG configurationsecurity trust levels - Question #430IPv4 Routing Technologies
Which of the following messages to exchange routing information between peers?
BGProuting protocolsUpdate messagemessage types - Question #431IPv4 Routing Technologies
Which of the following protocols can generate a multicast distribution tree?
multicast distribution treePIM protocolmulticast routing - Question #432IPv4 Routing Technologies
As shown in the figure, which of the following may be the reason why the adjacency relationship cannot be established?
OSPF adjacencyDead intervalHello protocolneighbor states - Question #433Network Management and O&M
Which of the following protocols does not support network configuration management?
LLDPNETCONFSNMPnetwork management protocols - Question #434IPv4 Routing Technologies
The output of a certain router is shown in the figure. According to the information analysis in the figure, which one of the following descriptions is correct?
OSPFDR/BDR electionnetwork typesadjacency states - Question #435Network Management and O&M
Which of the following descriptions about N+1 backup is correct?
N+1 BackupAC RedundancyNetwork High AvailabilityBackup Architecture - Question #436IPv4 Routing Technologies
Which of the following descriptions of wildcard masks is correct?
wildcard maskACLIP address matchingbinary notation - Question #437Layer 2 Technologies
As shown in the figure, the four switches have run the RSTP protocol and completed spanning tree calculations. So which of the following descriptions of port roles are correct?
RSTPPort RolesSpanning TreeLoop Prevention - Question #438Layer 2 Technologies
As shown in the figure, the management VLAN of the LAN is VLAN 10, the AP obtains an IP address through DHCP, and the network segment is 10.1.1.0/24 AP. AC and AR are DHCP client,...
DHCP relayWLAN configurationAC/APDHCP server pool - Question #439IPv4 Routing Technologies
Which routes in the following options meet the following ACL conditions? (Multiple choice) [HUAWEI]acl number 2001 [HUAWEI-acl-basic- 2001] rule 0 permit source 10.1.1.0 0.0.254.25...
ACL wildcard maskroute filteringIP address matchingbasic ACL - Question #440IPv4 Routing Technologies
The three routers run IS-IS and have established an adjacency relationship. The area numbers and router levels are marked in the figure. If the road between R1 and R2 is interrupte...
IS-ISSPF algorithmLSP floodinglink failure - Question #441IPv4 Routing Technologies
A network runs IS-IS. The LSP information of a router R4 in the network is shown in the figure. Which of the following statements is correct? (Multiple choice)
IS-ISLSPSystem IDexternal routes - Question #442IPv4 Routing Technologies
As shown in the picture, there are the following configurations under BGP. [HUAWEI-bgp] timer keepalive 30 hold 90 [HUAWEI-bgp] peer 1.1.1.2 timer keepalive 10 hold 30 Which of the...
BGP timerskeepalivehold timepeer configuration - Question #443IPv4 Routing Technologies
It is reported that a VRRP dual-master phenomenon occurs in a local area network, causing traffic to be interrupted from time to time. So what are the possible reasons for this VRR...
VRRPdual-mastergateway redundancyVRID - Question #444IPv4 Routing Technologies
In PIM-DM, which working mechanism combination constructs SPT? (Multiple choice)
PIM-DMSPTflood and prunemulticast routing - Question #445IPv4 Routing Technologies
Regarding the description of the VRRP slave device, which is correct? (Multiple choice)
VRRPslave devicevirtual MACpriority 0 - Question #446IPv4 Routing Technologies
Which of the following about IGMP Proxy is correct? (Multiple choice)
IGMP Proxymulticastgroup membershipupstream interface - Question #447Layer 2 Technologies
In a large-scale WLAN three-layer network, which of the following statements about the DHCP server is wrong? (Multiple choice)
WLAN DHCPoption43option60large-scale WLAN - Question #448Layer 2 Technologies
Which of the following descriptions about AC roaming groups is wrong? (Multiple choice)
AC roaming groupMaster ControllerCAPWAPWLAN roaming - Question #449IPv4 Routing Technologies
Which of the following LSAs has a propagation range only in a single area? (Multiple choice)
OSPF LSARouter LSANetwork LSAarea flooding scope - Question #450IPv4 Routing Technologies
Which of the following description about the prefix list is? (Multiple choice)
prefix listroute filteringprefix length matchingIP prefix