正确答案: A

立项可行性分析阶段

题目：从业务角度出发，最大的风险可能发生在那个阶段

解析：答案：A

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举一反三的答案和解析：

[单选题]C语言是一种(18)语言。

编译型

解析：解析：编译型语言指用该语言编写的程序在执行前，需要由相应的编译器将源程序翻译为目标代码程序，然后在目标机器上运行目标代码程序。解释型语言指用该语言编写的程序无需编译为目标代码，即可执行。对于解释型语言，都有相应的解释器，负责检查源程序的语法，进行语义分析，通常采用边翻译边执行的方式。对于C语言而言，一个C源程序必须由编译器将其翻译为目标代码，才能在目标机上运行，因此，它是编译型语言。

[单选题]文中（ 5 ）处正确的答案是（ ）。

circuit

[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.

network

transport

application

window

response

process

segment

program

user

requests

acknowledgments

datagrams

short

fixed

dynamic

解析：C,A,B,C,D

[单选题]关于OLAP和OLTP的说法，下列不正确的是______。

OLAP的最终数据来源与OLTP不一样

[单选题]计算机机房的安全分为()。

A类、B类、C类

解析：答案：B

[单选题]●网络管理系统的实现方式有 (10) 。(10)

3种

解析：【解析】本题考查的网络管理系统的相关知识点。