福师《网络信息安全》在线作业一（Blessing division network information safety online homework one）.doc

福师《网络信息安全》在线作业一（Blessing division network information safety online homework one） Blessing division network information safety online homework one or two Test paper 13 spring total score: 100 test time: - Radio examination A multiple-choice question Judgment question 14, radio questions autumn (a total of 35 questions, a total of 70 points) 1. packet filtering technology is compared with proxy service technology. A. packet filtering technology is less secure, but it will have a significant impact on network performance B. packet filtering technology is absolutely transparent to applications and users C. proxy service technology has high security, but it doesnt have a significant impact on network performance D. proxy service technology has high security and high transparency for applications and users Full marks: 2 2. in the risk assessment phase of the security audit, which order is usually conducted: (). A. investigation stage, infiltration stage, control stage B. penetration stage, investigation stage, control stage C. control stage, investigation stage and infiltration stage D. investigation stage, control stage, infiltration stage Full marks: 2 3. state inspection technology works on OSI () layer to implement firewall function. A. link layer B. transport layer C. network layer D. session layer Full marks: 2 4. for the digital signature, the following statement is wrong: (). The A. digital signature can be some data attached to the data unit The B. digital signature can be a cryptographic transformation of the data unit C. digital signature technology can be used to provide security services such as anti repudiation and authentication D. digital signature schemes can use symmetric or asymmetric cryptographic algorithms Full marks: 2 5., the PPTP (Point-to-Point, Tunnel, Protocol) statement is correct: (). A. PPTP was proposed by Netscape B. Microsoft has been supporting PPTP since NT3.5 C. PPTP is available on Microsofts routing and remote access services D. it