单项选择题
A.denial of service
B.brute force
C.reconnaissance
D.Trojan horse
单项选择题 V.24接口工作在同步方式下最高传输速率是()。
单项选择题 The network administrator is asked to configure 113 point-to-point links. Which IP addressing scheme best defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses?()
判断题 X.25作为国际通用标准的广域网协议,内置的差错纠正,流量控制和丢包重传机制使之具有高度的可靠性,由于数据吞吐率很低,包时延较大,故不适于在质量差的信道上传输数据。