【名词&注释】
可行性分析(feasibility analysis)、知识点(knowledge point)、编译器(compiler)、不一样(unlikeliness)、需求分析阶段(requirement analysis phase)、C源程序(c source program)
[单选题]从业务角度出发，最大的风险可能发生在那个阶段
A. 立项可行性分析阶段
B. 系统需求分析阶段(requirement analysis phase)
C. 架构设计和编码阶段
D. 投产上线阶段
查看答案&解析
举一反三：
[单选题]C语言是一种(18)语言。
A. 编译型
B. 解释型
C. 编译、解释混合型
D. 脚本
[单选题]文中（ 5 ）处正确的答案是（ ）。
A. path
B. rout
C. circuit
D. way
[多选题]●The TCP protocolis a (71) layer protocol. Each connection connects two TCPs that may be just one physical network apart or located on opposite sides ofthe globe. In other words, each connection creates a (72) witha length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections. Selecting afixed retransnussion time for all connections can result in serious consequences. Ifthe retransmission time does not allow enough time for a (73) to reach the destination and an acknowledgment to reach the source, it can result in retransmission of segments that are still on the way. Conversely, if the retransnussion time is longer than necessary for a short path, it may result in delay for the application programs.Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive (74)faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection. Retransmission time can be made(75) by basing it on the round-trip time (RTT). Several formulas are used for this purpose.
A. physical
B. network
C. transport
D. application
E. path
F. window
G. response
H. process
I. process
J. segment
K. program
L. user
M. connections
N. requests
O. acknowledgments
P. datagrams
Q. long
R. short
S. fixed
T. dynamic
[单选题]关于OLAP和OLTP的说法，下列不正确的是______。
A. OLTP事务量大，但事务内容比较简单且重复率高
B. OLAP的最终数据来源与OLTP不一样
C. OLAP面对的是决策人员和高层管理人员
D. OLTP以应用为核心，是应用驱动的
[单选题]计算机机房的安全分为()。
A. A类、B类
B. A类、B类、C类
C. A类、B类、C类、D类
D. 以上都不是
[单选题]●网络管理系统的实现方式有 (10) 。(10)
A. 1种
B. 2种
C. 3种
D. 4种
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