奥鹏南开16春学期《Web Service应用系统设计》在线功课(国外英文资料).docVIP

奥鹏南开16春学期《Web Service应用系统设计》在线作业 For who 16 spring semester W Srvi application system design online One, single topic (20 questions, 40 points). The attack method of obtaining data from other people by receiving information transmitted over the physical channel E-mail attacks Network monitoring Vulnerability scanning Denial of service attacks Correct answer: The following medium is the lowest cost cable transmission medium Coaxial cable The twisted pair The infrared The optical fiber Correct answer: The earliest w was born The W3 organization European nuclear physics performance center M.I.T. NASA Correct answer: In Ethernet, 10s2 media is: Ethernet cable Ethernet cable The twisted pair The optical fiber Correct answer: In the network interconnection device, the work is in the physical The repeater The bridge . The router The gateway Correct answer: In the OSI reference model, the next layer of the presentation layer is The application layer The session layer The transport layer . The network layer Correct answer: The firewall that is not paralyzed by breaking down is: Routing filters firewall Double hole host gateway method firewall Host filter firewall The subnet filters the firewall Correct answer: If a unit pulse has eight different states, the data transfer rate is the modulation rate 2 times. Three times. 4 times. Equal. Correct answer: In the following description of communication cables and channels, the error is The cable is the physical circuit of communication, the channel is the logical line of communication There can be multiple channels on the same cable There is only one channel on the same cable A channel is a channel for transmitting signals, consisting of communication cables and corresponding auxiliary equipment Correct answer: The ability to monitor user and system performance and discover the technique of attack behavior Firewall technology Intrusion detection technology Anti-virus technology Encryption technique Correct answer: In telegraphic