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【简答题】
The Old Cat An old woman had a cat. The cat was very old; she could not run quickly, and she could not bite, because she was so old. One day the old cat saw a mouse; she jumped and caught the mouse. But she could not bite it; so the mouse got out of her mouth and ran away, because the cat could not bite it. Then the old woman became very angry because the cat had not killed the mouse. She began to hit the cat. The cat said, "Do not hit your old servant. I have worked for you for many years, and I would work for you still, but I am too old. Do not be unkind to the old, but remember what good work the old did when they were young."
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举一反三
【单选题】OSI is a theoretical model that shows how any two different systems can communicate with each other. Router, as a networking device, operate at the ______ layer of the OSI model.
A.
transport
B.
application
C.
network
D.
physical
【单选题】What is OSI Model?
A.
Open System Interconnection Reference model
B.
Output System Interconnection Reference model
C.
Open Service Interconnection Reference model
D.
Open Settings Interconnection Reference model
E.
Sorry, I dont know
【简答题】建立一对多关系时,一对应的表称为( ),而多对应的表称为( )
【单选题】The TCP/IP stack is a complete set of networking protocols. The OSI Model was meant to be a standardized way of connecting devices together. and most protocols have some direct correlation to the OSI ...
A.
physical layer
B.
data link Iayer
C.
application layer
D.
transport layer
【简答题】K m 值是指( )。
【单选题】● OSI is a theoretical model that shows how any two different systems can communicate with each other．Router, as a networking device, operate at the (71) layer of the OSI model． (71)
A.
transport
B.
application
C.
network
D.
physical
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