多项选择题
A.The neighboring router stops receiving ACK packets from this router.
B.The neighboring router starts receiving route updates from this router.
C.The neighboring router is too busy to answer the query(generally caused by high CPU utilization).
D.The neighboring router is having memory problems and cannot allocate the memory to process the query or build the reply packet.
单项选择题 At which lay er of the OSI model does the Spanning Tree Protocol (STP) operate at（）
多项选择题 Which two statements about the Cisco Aironet Desktop Utility (ADU) are true（）
单项选择题 The network setup for this trouble ticket is shown in Figure 3. Trouble Ticket Statement DSW1 and R4 cannot ping R2’s loopback or R2’s s0/0/0/0.12 IPv6 address. Initial troubleshooting showsand R2 is not an OSPFv3 neighbor on R3. Configurationon R2 ipv6 unicast-routing! ipv6 router ospf 6 router-id 2.2.2.2! interface s0/0/0/0.23 ipv6 address 2026：：1：1/122 ConfigurationR3 ipv6 unicast-routing! ipv6 router ospf 6 router-id 3.3.3.3! interface s0/0/0/0.23 ipv6 address 2026：：1：2/122 ipv6 ospf 6 area 0 Figure 3 What is the solution of the fault condition？（）