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Which two packet attributes contribute to the identification of a session? ()(Choose two.)
A. destination port
B. TTL
C. IP options
D. protocol number
参考答案
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以下程序段的输出结果为 ( )int j=2；switch(j){case 2：System.out.print("two.")；case 2+1：System.out.println("three.")；breakdefault：System.out.println("value is"+j)；break；}A．two.three.B．two.C．three.D．value is 2
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下面哪些项属于非实时业务的参数。()
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WhichofthefollowingareassociatedwiththeapplicationlayeroftheOSImodel?(two.)()
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I'm very glad to draft the letter for you.A:revise
B:clarify
C:formulate
D:contribute
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