H12-821_V1.0 Exam Questions
1,196 real H12-821_V1.0 exam questions with expert-verified answers and explanations. Page 13 of 24.
- Question #601SDN and Network Automation
In the new mode of network innovation architecture. Which of the following descriptions about the value of SDN is correct? (Multiple choice)
SDN benefitscentralized managementservice deliverynetwork automation - Question #602IPv4 Routing Technologies
Router A and Router B are directly connected, OSPF is enabled and the port network type is broadcast. The two routers establish an adjacency relationship, which of the following it...
OSPF adjacencybroadcast networkneighbor requirementsOSPF parameters - Question #603IPv4 Routing Technologies
Which of the following descriptions about the difference between DIS in IS-IS and DR in OSPF are correct? (Multiple choice)
IS-IS DISOSPF DRDIS electionbroadcast adjacency - Question #604IPv4 Routing Technologies
Which of the following are the mechanisms supported by both IGMPv2 and IGMPv3? (Multiple choice)
IGMPIGMPv2IGMPv3multicast group management - Question #605MPLS and MPLS VPN
Which of the following VPN technologies operate based on the data link layer? (Multiple choice)
PPTPL2TPL2 VPNVPN data link layer - Question #606IPv4 Routing Technologies
Which of the following descriptions about the recognized attributes in BGP are correct? (Multiple choice)
BGP attributesrecognized mandatoryUpdate messageBGP path attributes - Question #607IPv4 Routing Technologies
As shown in the picture, four routers run IS-IS, and they are all Level1-1-2 routers. The area numbers are as shown in the picture. 49.0001 49.0001 49.0003 49.0002 Which of the fol...
IS-IS levelsIS-IS areasLevel-1 Level-2neighbor relationships - Question #608IPv4 Routing Technologies
Which of the following characteristics does the IS-IS protocol have? (Multiple choice)
IS-IS featuresprotocol scalabilitydata link layerhierarchical routing - Question #609Network Management and O&M
Which of the following are the functions of the switching fabric board? (Multiple choice)
switching fabricdata planecontrol planerouter hardware - Question #610Network Security
In the figure, the GE0/0/0 and GE0/0/1 interfaces of RTA are respectively connected to departments 1 and 2, and their network segments are respectively 10.1.2.0/24 and 10.1.3.0/24,...
ACLtraffic-filterinbound outbound directionaccess control list - Question #611IPv4 Routing Technologies
Which of the following descriptions about BGP loop protection is correct? (Multiple choice)
BGP loop preventionAS-PATHIBGP EBGPsplit horizon - Question #612Layer 2 Technologies
Which of the following descriptions about IGMP Snooping are correct? (Multiple choice)
IGMP SnoopingLayer 2 multicastIGMP messagesMulticast forwarding - Question #613Network Security
Which of the following are the necessary configurations of the firewall? (Multiple choice)
firewall configurationsecurity zonesport classificationsecurity policies - Question #614IPv4 Routing Technologies
Which of the following IP address ranges are not multicast address ranges? (Multiple choice)
IP multicastaddress classificationIPv4 rangesClass D addresses - Question #615Layer 2 Technologies
In the MSTP domain, multiple spanning trees can be generated based on instance calculations, and each spanning tree is called an MSTI. Which of the following statements about MSTI...
MSTPMSTIVLAN mappingSpanning tree parameters - Question #616Layer 2 Technologies
Which of the following descriptions about the P/A mechanism in RSTP are correct? (Multiple choice)
RSTPP/A mechanismProposal Agreementdesignated port states - Question #617IPv6 Technologies
Which of the following descriptions about the IPv6 stateless auto-configuration of addresses through NDP? (Multiple choice)
IPv6 stateless autoconfigurationNDPDAD detectionRA RS messages - Question #618Network Management and O&M
Which of the following log levels are available in the USG series firewalls? (Multiple choice)
Syslog levelsFirewall loggingDevice managementSystem logging - Question #619Network Security
Which of the following items are included in the traffic matching conditions of the firewall security policy? (Multiple choice)
firewall security policytraffic matchingsecurity zoneapplication identification - Question #620IPv4 Routing Technologies
Which of the following descriptions about the basic concepts of VRRP are wrong? (Multiple choice)
VRRPvirtual routerVRIDmaster backup - Question #621IPv4 Routing Technologies
As shown in the figure, the user has configured the relevant parameters of the VRRP backup group, and the parameters that are not shown in remain in the default state. R1 with prio...
VRRPRouter PriorityMaster/Backup ElectionNetwork Redundancy - Question #622Network Management and O&M
Which of the following information is the real-time backup data of HSB business? (Multiple choice)
HSB BackupNetwork StateCAPWAPSession Management - Question #623IPv4 Routing Technologies
Which of the following types does IS-IS PDU include? (Multiple choice)
IS-IS PDU typesLSPCSNP PSNPIIH - Question #624IPv4 Routing Technologies
Which of the following descriptions of the application of route reflectors in BGP are correct? (Multiple choice)
BGP route reflectorRR clientsIBGP reflection rulesroute propagation - Question #625IPv4 Routing Technologies
Which of the following descriptions about OSPF packet authentication is wrong? (Multiple choice)
OSPF AuthenticationHello PacketsArea vs Interface AuthAuthentication Modes - Question #626IPv4 Routing Technologies
As shown in the figure is part of the configuration of the router RTA. [RTA-ospf-100]sient-interface GigabitEthernet 1/0/0 Regarding the description of this part of the configurati...
OSPFSilent InterfaceRoute AdvertisementOSPF Process - Question #627IPv4 Routing Technologies
Which of the following fields are included in the OSPF Hello packet? (Multiple choice)
OSPFHello packetsPacket structureIGP protocols - Question #628Network Security
Which of the following descriptions about the ACL matching mechanism are correct? (Multiple choice)
ACL MatchingPermit/Deny ActionsMatch/Mismatch LogicEmpty ACL Behavior - Question #629QoS
Which of the following descriptions about MQc flow classification are correct? (Multiple choice)
Traffic ClassificationQoS Rule LogicACL RulesAND/OR Operators - Question #630Network Security
Which of the following descriptions about ACL classification numbers are correct? (Multiple choice)
ACLACL numberingClassification rangesAccess Control - Question #631Network Security
Which of the following VPN technologies may have two IP-packet headers in one packet? (Multiple choice)
VPN tunnelingPacket encapsulationTunneling protocolsIP headers - Question #632Layer 2 Technologies
When roaming is configured on a WLAN, which of the following factors may cause inter-AC roaming failure? (Multiple choice)
WLAN roaminginter-AC roamingCAPWAP sourceroaming group - Question #633IPv4 Routing Technologies
Different types of LSAs have different functions. Which of the following LSAs can only be spread within a single area? (Multiple choice)
LSA typesOSPF flooding scopearea boundariesRouter and Network LSA - Question #634IPv4 Routing Technologies
When the IS-IS overhead type is Narrow, which of the following TLVs are used to carry IS-IS routing information inside and outside the routing domain? (Multiple choice)
IS-IS TLVNarrow moderouting information TLVinternal external routes - Question #635IPv4 Routing Technologies
Which of the following descriptions about NSAP addresses in IS-IS are correct? (Multiple choice)
NSAP addressIS-IS addressingIDP DSP structureSEL field - Question #636IPv4 Routing Technologies
Which of the following mechanisms does the PIM-DM mode include in the process of building a multicast forwarding tree? (Multiple choice)
PIM-DMMulticast RoutingPruning/GraftingForwarding Tree - Question #637QoS
MQc includes which of the following elements? (Multiple choice)
MQc componentsTraffic classificationFlow strategyTraffic behavior - Question #638VRP Basics and Advanced Features
The existing stacking switch that has been powered on and configured for stacking, and is connected to the already running stacking system through stacking cables. Which of the fol...
Switch StackingMaster ElectionStack MergingConfiguration Synchronization - Question #639IPv4 Routing Technologies
In the network as shown in the figure, without making any attribute modifications, which of the following descriptions of R5 preferred routes are correct? (Multiple choice)
BGP AS_Pathroute selectionEBGP path comparisonAS_Path length - Question #640IPv4 Routing Technologies
As shown in the figure, R1 and R2 form a VRRP backup group. So which of the following descriptions about this backup group are correct? (Multiple choice)
VRRProuter failoveractive-backup redundancytraffic flow - Question #641Layer 2 Technologies
As shown in the figure, the four Huawei switching devices have all run and configured the MSTP protocol. Now it is required that the MSTP domain name is set to Huawei.
MSTPspanning treeMST regiondomain name configuration - Question #642Network Management and O&M
Which of the following commands need to be configured on the four devices? (Multiple choice)
multi-region configurationdevice registrationnetwork configuration commandsdevice management - Question #643IPv4 Routing Technologies
In which of the following descriptions about DR is correct? (Multiple choice) A. PIM routers become PIM neighbors by exchanging Hello messages. The Hello messages carry the DR prio...
PIM-SMDR electionHello messagesmulticast registration - Question #644IPv4 Routing Technologies
Which of the following descriptions of multicast MAC address is incorrect? (Multiple choice) A. The function of the multicast MAC address is to identify receivers belonging to the...
multicast MAC addressmulticast IP mapping01005e prefixMAC-to-IP ambiguity - Question #645IPv4 Routing Technologies
Depending on the degree of control over the multicast source, IP multicast is divided into which of the following models? (Multiple choice)
SSMASMmulticast modelsIP multicast - Question #646Layer 2 Technologies
Which of the following descriptions of IGMP Snooping are correct? (Multiple choice) A. After IGMP Snooping is enabled, the switch will only send multicast packets to specific multi...
IGMP Snoopingmulticast filteringLayer 2 switchMAC multicast table - Question #647IPv4 Routing Technologies
Which of the following descriptions about DR are correct? (Multiple choice) A. By default, the interface priority of the PIM router is 1. B. DR election is implemented through the...
PIM DR electionHello messagesDR priorityinterface priority - Question #648IPv4 Routing Technologies
Among the following options, which routing prefixes meet the following IP-Prefix conditions? (Multiple choice) HUAWEI CLN PBR match index 10 permit 20.0.0.0/16 greater-equal 24 les...
IP-Prefixrouting policyprefix-length rangeroute filtering - Question #649IPv4 Routing Technologies
Regarding the routers that can initiate SPT switching in the PIM-SM network, what is the wrong description? (Multiple choice)
PIM-SMSPT switchingshortest path treelast hop router - Question #650IPv4 Routing Technologies
What is the difference between PIM-SM protocol and PIM-DM protocol? (Multiple choice) A. BSR/RP only exists in PIM-SM network and does not exist in PIM-DM B. PIM-DM periodically fl...
PIM-SMPIM-DMMulticast routingRP/RPT/SPT trees