
【名词&注释】
应用领域(application field)、价格低廉(low price)、应运而生(emerge as)、大型机(mainframe)、数据链路层(data link layer)、小型机(minicomputer)、大型计算机(large-scale computer)、速度快(fast)、一段时间(a period)、铁盒子
[单选题]involves comparing actual or planned project practices to those of other projects to generate ideas for improvement and to provide a basis by which to measure performance. These other projects can be within the performing organization or outside of it,and can be within the same or in another application area.
A. Metrics
B. Measurement
C. Benchmarking
D. Baseline
查看答案&解析
举一反三:
[单选题]动态存储器件(DRAM)与静态存储器件(SRAM)相比,其特点是(18)。
A. 容量大
B. 速度快(fast)
C. 需要定期刷新
D. 价格低
[单选题]当以太网的MAC子层在数据帧发送过程中检测到冲突时,就使用(4)退避一段时间(a period)后重新试图发送。
A. 非坚持算法
B. 1-坚持算法
C. P-坚持算法
D. 二进制指数退避算法
[单选题]通常,网络设计时主要考虑数据链路层的网络效率和额外开销。传统以太网帧的最大额外开销为(20)。
A. 71.9%
B. 83.6%
C. 28.1%
D. 16.4%
[单选题]以下对小型机的理解,正确的是(15)。
A. 小型机相对于大型机而言,管理较简单,一般采用RISC CPU
B. 小型机相对于大型机而言,成本较低,一般采用CISC CPU
C. 小型机相对于微机而言,管理较复杂,一般采用CISC CPU
D. 小型机相对于微机而言,各项性能优良,一般采用RISC CPU
[单选题]Fair and (73) competition in government procurement around the world is good business and good public policy.Competitive pricing,product (74) and performance improvements result from competitive practices and help ensure that government authorities get the best (75) for the public they serv(73)
A. open
B. continue
C. dependent
D. reliable
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