H12-891_V1.0 Exam Questions
768 real H12-891_V1.0 exam questions with expert-verified answers and explanations. Page 1 of 16.
- Question #1QoS and Network Security
Portal authentication is also called Web authentication. Users can authenticate user identities through the Web authentication page. Which of the following descriptions of Porta1 a...
Portal authenticationWeb authenticationnetwork access controlclient software - Question #2SDN and Network Automation
In a virtualized campus network scenario deployed through iMaster NCE-Campus, some key parameters need to be configured when configuring the authorization results for access authen...
iMaster NCE-Campusauthorization resultsaccess authenticationcampus network - Question #3MPLS and VPN Technologies
Which of the following descriptions of BGP/MPLS IP VPN network architecture is wrong?
BGP/MPLS IP VPNCE PE P devicesVPN architecturesite membership - Question #4QoS and Network Security
Which of the following descriptions about DHCP Snooping is wrong?
DHCP Snoopingtrusted portsVLAN viewinterface view - Question #5Network Architecture and Design
In different scenarios, RSTP provides different protection functions. Which of the following is wrong?
RSTPBPDU protectionroot protectionedge port - Question #6Network Architecture and Design
Regarding the description of Network Address Port Translation (NAPT) and Network Address Only Translation (No-PAT), which of the following statements is correct?
NAPTNo-PATnetwork address translationPAT - Question #7QoS and Network Security
Regarding the description of configuring the security level of the firewall security zone, which of the following statements is correct?
firewall security zonesecurity levelzone configurationdefault settings - Question #8QoS and Network Security
Regarding the description of MAC address spoofing attack, which of the following statements is correct?
MAC address spoofingMAC learningswitch securityforged frames - Question #9Network Architecture and Design
The default priority of VRRP devices in the backup group is?
VRRPbackup groupdefault prioritygateway redundancy - Question #10Network Operation and Maintenance and Troubleshooting
The default sending interval of BFD detection packets is?
BFDdetection intervalpacket timinglink detection - Question #11Network Architecture and Design
What is the default lease period of the DHCP address pool?
DHCPaddress poollease perioddefault configuration - Question #12WLAN and IoT Technologies
In scenarios with dense rooms such as dormitories, hotels, and wards, deploying an AP in each room will cause a large number of packets to be sent to the AC, which can easily cause...
agile distributed APdense deploymentAC bottleneckWLAN architecture - Question #13MPLS and VPN Technologies
SR-MPLS Policy needs to introduce business traffic into the tunnel for forwarding. If there are different business traffic going to the same destination address, in order to better...
SR-MPLS Policytraffic diversionDSCPQoS steering - Question #14Advanced IP Routing and Multicast
Which of the following descriptions about the purpose of configuring LSP fragmentation on IS-IS equipment is correct?
IS-ISLSP fragmentationrouting entrieslink state protocol - Question #15Network Operation and Maintenance and Troubleshooting
When troubleshooting MSTP, the network administrator executed the display current- configuration command to obtain the configuration file of the device. Which of the following desc...
MSTPBPDU TunnelSTP troubleshootingspanning tree - Question #16Network Operation and Maintenance and Troubleshooting
When the network administrator tried to access the internal network device through Telnet, he found that he could not access it. Which of the following reasons is impossible?
TelnetVTY interfaceACLprotocol inbound - Question #17Advanced IP Routing and Multicast
Which of the following is the meaning of the ipv6 enable topology ipv6 command in IS-IS protocol view?
IS-ISIPv6 topologymulti-topologySPF calculation - Question #18QoS and Network Security
There are many types of token buckets. Which type of token bucket should be used for long-term burst traffic?
token bucketburst trafficdouble bucket double speedtraffic policing - Question #19QoS and Network Security
Which of the following options is not the discarding strategy of the cache queue?
queue managementtail dropREDWRED - Question #20MPLS and VPN Technologies
How many bits are there in the MPLS label field?
MPLSlabel fieldlabel formatlabel stack - Question #21QoS and Network Security
There are three different roles in strategic linkage. Which of the following is not a role defined in strategic linkage?
strategic linkageauthentication execution pointaccess control rolesnetwork security architecture - Question #22MPLS and VPN Technologies
A company's headquarters network and branch network are interconnected through the Internet. If you want to use VPN technology to ensure safe and reliable data transmission between...
IPsec VPNsite-to-site VPNVPN technology selectiontunnel security - Question #23Data Center Network Technologies
In the scenario of dynamically establishing a VXLAN tunnel through BGP EVPN, when EVPN Type2 is used to advertise host ARP and host IP routes respectively, which option is wrong in...
VXLANBGP EVPNType2 routeL2 VNI L3 VNI - Question #24Network Architecture and Design
In the campus network, in order to facilitate the management of servers, printers, video surveillance and other equipment, which of the following methods is recommended for address...
DHCP static bindingMAC address bindingaddress managementcampus network - Question #25QoS and Network Security
For scenarios where advanced security functions such as UR filtering, IPS, security defense, and AV anti-virus need to be supported, and multi-link uplink needs to be supported, wh...
firewallURL filteringIPSegress device selection - Question #26Data Center Network Technologies
In the scenario of dynamically establishing a VXLAN tunnel through BCP EVPN, when using BGP EVPN Type2 routing for host MAC address advertisement, which of the following descriptio...
BGP EVPNType2 routeMAC advertisementVNI - Question #27Advanced IP Routing and Multicast
Which of the following BGP routing attributes cannot control BGP route selection?
BGP attributesroute selectionCommunity attributeMED - Question #28Data Center Network Technologies
Which of the following descriptions of Underlay in VXLAN virtualized campus applications is wrong?
VXLANunderlay networkIMaster NCE-Campuscampus virtualization - Question #29QoS and Network Security
In the firewall dual-machine hot standby scenario, when VGMP is working in load sharing mode, in order to avoid the return traffic being discarded because it does not match the ses...
firewall HAVGMPsession quick backupload sharing - Question #30QoS and Network Security
After the interface Sticky MAC function is enabled on the device, what is the number of MAC addresses learned by the interface by default?
sticky MACport securityMAC learning limitinterface security - Question #31Advanced IP Routing and Multicast
According to the information given in the figure, which of the following descriptions of the IPv6 routing information calculated by the R router through ISIS is correct?
IS-ISIPv6 routingequal-cost routesdefault route - Question #32MPLS and VPN Technologies
Which of the following descriptions of MPLS label space is wrong?
MPLS label spacelabel valuesPHPstatic LSP - Question #33QoS and Network Security
Part of the configuration of device H is as shown in the figure. Which item is wrong in the following description of this configuration?
DHCP Snoopingtrusted interfaceDHCP server spoofingport security - Question #34MPLS and VPN Technologies
Which of the following descriptions of BGP/MPLSIPVPN routing interactions is wrong?
BGP MPLS VPNPE-CE routingVPNv4 routesroute redistribution - Question #35Advanced IP Routing and Multicast
An interface has the following configuration: isitimerhello5level-2. Which of the following descriptions is correct?
IS-IS timershello intervalLevel-2interface configuration - Question #36MPLS and VPN Technologies
In the following MPLSL3VPN cross-domain solution, which one of the VPNv4 routes needs to be transmitted between ASBRs?
L3VPN inter-ASOption BASBRVPNv4 routes - Question #37Network Architecture and Design
Which of the following NAT64 prefixes does not require manual configuration by the administrator?
NAT64IPv6 translationwell-known prefix64:FF9B::/96 - Question #38Advanced IP Routing and Multicast
As shown in the figure, the OSPF protocol is enabled on all interfaces of the router. Which of the following descriptions is correct?
OSPF LSA typesType1 LSArouter LSAOSPF areas - Question #39Network Operation and Maintenance and Troubleshooting
As shown in the figure is the output information of a network engineer when troubleshooting OSPF faults. Based on this judgment, which of the following reasons may cause the adjace...
OSPF troubleshootingadjacency failuresubnet mask mismatchfault diagnosis - Question #40Network Operation and Maintenance and Troubleshooting
Based on the information given in the figure, which of the following descriptions is correct?
IS-ISIPv6 neighbordual-stackneighbor adjacency - Question #41QoS and Network Security
Which of the following descriptions about traffic policing is correct?
traffic policingQoSrate limitingtraffic management - Question #42QoS and Network Security
As shown in the figure, if you want to allow only legal users (users who obtain IP addresses through a legal DHCP server or specific static IP users) to access the network in the n...
DHCP SnoopingIPSGDAInetwork access control - Question #43Data Center Network Technologies
In the scenario of dynamically establishing a VXLAN tunnel through BGP EVPN, which of the following descriptions about the role of BGP EVPN Type3 routing is wrong?
BGP EVPNVXLANType3 routeVNI - Question #44QoS and Network Security
Which of the following descriptions of data encryption methods is wrong?
symmetric encryptionasymmetric encryptionpublic keyprivate key - Question #45SDN and Network Automation
In Huawei's SD-WAN solution, the topology orchestration results are delivered to the RR through which of the following methods?
SD-WANBGProute reflectortopology orchestration - Question #46MPLS and VPN Technologies
As shown in the figure, PE1 enables the SR-MPLS function based on OSPF. Based on this, it can be inferred that the label when PE1 forwards the data packet to 10.0.3.3 is?
SR-MPLSOSPFlabel forwardingSRGB - Question #47MPLS and VPN Technologies
All routers in a network enable the SR-MPLS function based on OSPF. The SRGB of each router is as shown in the figure. By default, when R3 forwards a packet with the destination ad...
SR-MPLSSRGBlabel calculationOSPF - Question #48SDN and Network Automation
When the client calls iMaster NCE Campus RESTful When using the API, if the server returns status code 401, which of the following descriptions is correct?
RESTful APIHTTP status codesauthenticationiMaster NCE - Question #49Network Architecture and Design
During the HTTP communication process, the client only sends a request for each HTTP connection. Once the server response data is sent, the connection will be released. To solve th...
HTTPpersistent connectionConnection headersession management - Question #50MPLS and VPN Technologies
Which of the following descriptions about labels is wrong?
MPLS labelsstatic LSPdynamic LSPlabel distribution