单选题 安全MAC地址可以执行的安全保护动作不包括以下哪项

单选题 关于IPSG下列说法错误的是

单选题 某工程师利用2台路由器进行IPv6业务测试,通过运行BGP4+模拟总部与分支的互联互通。AS65001AS65002 R1 R2LoopbackoGE0/0/1 EBGPGE0/0/1UPDATE Message-Border Gateway ProtocolUPDATE Message Marker. 16 bytes Length:85 bytes Type: UPDATE Message (2)Unfeasible routes length: 0 bytes Total path attribute length:62 bytes Path attributesORIGIN: IGP (4 bytes)AS PATH: 65001(9 bytes)ULTLEXIT_DISC: 0 (7 bytes)MP _REACH_NLRI (42 bytes)Flags 0x90 (Optional, Non-transitive, Complete,Extended Length)Type code: MP_REACH_NLRI (14)Length: 38 bytes Address family. IPv6(2)Subsequent address family identifier. Unicast (1)Next hop network address (16 bytes)Next hop:2001:db82345:12-1 (16)Subnetwork points of attachment: 0Network layer reachability information (17 bytes)2001:db8-2345:1:1/128MP Reach NLRI prefix length: 128 MP Reach NLRI prefix 2001:db8:2345:1:1 某工程师抓包查看R1发出的update报文。关于该报文信息的描述,以下哪个说法是正确

单选题 当IS-S网络中有多条冗余链路时,可能会出现多条等价路由。关于IS-IS网络内的等价路由,以下哪个描述是错误的

单选题 如图所示,某园区部署了IPv6进行业务测试,该网络中有4台路由器。运行OSPFv3实现网络的互联互通。关于该OSPFv3网络产生的LSA,下列哪个说法是错误的R4 R2Area 0GE0/0/2|GEO/0/1l R1 S1Area 1 GE0/0/0O R3GE0/0/2]

单选题 OSPF与BFD联动的价值是

单选题 某台路由器运行OSPF,输出信息如图,下列说法正确的是

单选题 某位网络工程师在排查OSPF故障时输出信息如下,据此判断哪种原因导致邻接关系无法正常建立Huawei>display ospf error interface GigabitEthernet 0/0/0OSPF Process 1 with Router ID 10.0.12.2 OSPF error statisticsInterface: GigabitEthernet0/0/0(10.0.12.2)General packet errors:0 : Bad checksum 0 :Bad version0 :Bad authentication type 0:Bad area id0 : Bad authentication key 0 : Unknown neighbor 0 :Bad net segment0 :Extern option mismatch D : Router id confusion oHELLO packet errors:2 :Netmask mismatch0: Hello timer mismatch 0 : Dead timer mismatch0: Invalid Source Address