WhichofthefollowingistheBESTtooltotroubleshootaDB-9port?（）
A: Ohmmeter
B: Anti-staticwriststrap
C: Oscilloscope
D: Loopbackplug
A: Ohmmeter
B: Anti-staticwriststrap
C: Oscilloscope
D: Loopbackplug
举一反三
- 下列华为设备的VLAN添加端口命令,不正确的是: A: port 0/10 B: port Ethernet 10 C: port Ethernet 0/10 D: port Ethernet0/6 to Ethernet 0/9
- By an ohmmeter ______ the instrument used to measure resistance.
- CIF should be followed by( )． A: port of transshipment B: port of destination C: port of call D: port of shipment
- The port in which crew or passengers go on board the ship is called（）. A: port of call B: port of embarkation C: port of destination D: port of disembarkatio
- The term FOB should be followed by _________ A: port of importing B: port of shipment C: port of discharge D: port of origin