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多項(xiàng)選擇題

Which two fields are found in an Ethernet frame header?（）

A. TTL
B. flags
C. checksum
D. type

多項(xiàng)選擇題

You have been asked to configure your router to send link-related SNMP trap notifications to the network managemetn system (NMS) located at address 172.16.17.1.Which two commands are required?（）

A. set snmp trap-group my-trap-group targets 172.16.17.1
B. set snmp targets 172.16.17.1
C. set snmp trap-group my-trap-group link-status
D. set snmp trap-group my-trap-group categories link