【名词&注释】
可用性、可控性(controllability)、保密性(security)、完整性(integrity)、物理层(physical layer)、数据链路层(data link layer)
[单选题]ATM的物理层(physical layer)功能相当于OSI/RM中的（ ）
A. 数据链路层(data link layer)和网络层
B. 物理层(physical layer)和数据链路层(data link layer)
查看答案&解析
举一反三：
[单选题]信息安全的基本属性是()。
A. 保密性
B. 完整性
C. 可用性、可控性、可靠性
D. A，B，C都是
[单选题]The(66)is a channel's capacity which directly reflects the data transfer rate of the channel.(67)functions in a NetWare network which is used to define addressing schemes.
A. The(68)is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.
B. (69)is the popular LAN developed under the direction of the IEEE802.3.
C. The(70 is a device which enables digital microcomputers to communicate across analog telephone lines.
D. volume
E. bandwidth
F. noise
G. delay
[单选题]The Rational Unified Process (RUP) is a software engineering process, which captures many of best practices in modern software development. The notions of use-cases and (71) have been proven to be an excellent way to capture function requirements. RUP can be described in two dimensions-time and content. In the time dimension, the software lifecycle is broken into cycles. Each cycle is divided into four consecutive (72) which is concluded with a well-defined (73) and can be further broken down into (74) - a complete development loop resulting in a release of an executable product, a subset of the final product under development, which grows incrementally to become the final system. The content structure refers to the disciplines, which group (75) logically by nature.
A. actors
B. artifacts
C. workers
D. scenarios
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