正确答案: C
216
题目:TCP软件可以提供( )个不同的端口。
解析:
按照TCP协议规定,其允许长达16位的端口值,所以TCP软件可以提供216个不同的端口。
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学习资料的答案和解析:
[多选题]● Observe that for the programmer, as for the chef, the urgency of the patron (顾客)may govern the scheduled completion of the task, but it cannot govern the actual completion. An omelette(煎鸡蛋), promised in two minutes, may appear to be progressing nicely. But when it has not set in two minutes, the customer has two choices—waits or eats it raw. Software customers have had (71) choices.Now I do not think software (72) have less inherent courage and firmness than chefs, nor than other engineering managers. But false (73) to match the patron's desired date is much more common in our discipline than elsewhere in engineering. It is very (74) to make a vigorous, plausible, and job risking defense of an estimate that is derived by no quantitative method, supported by little data, and certified chiefly by the hunches of the managers.
no B. the same
other D. lots of
testers B. constructors
managers D. architects
tasks B. jobs
works D. scheduling
easy B. difficult
simple D. painless
sharing B. excluding
omitting D. ignoring
解析:试题(71)~(75)参考译文
[单选题]●某财务系统在使用过程中,因个人所得税政策变化,需修改计算工资的程序。这种修改属于(50)维护。
适应性
[单选题]在物联网的架构中,3G、4G属于()技术。
网络层
[单选题]为了防止电子邮件中的恶意代码,应该用(8)方式阅读电子邮件。
纯文本
解析:解析:本题考查的是电子邮件中恶意代码的相关知识,当电子邮件中包含网页或者程序时,就有可能包含恶意代码。因此选择以纯文本的方式阅读电子邮件就防止恶意代码的触发。
[单选题]当在轻型模式下运行时,下列哪个协议管理Cisco 512AP?A、LWAPP
[单选题]在进程状态转换过程中,可能会引起进程阻塞的原因是(63)。计算机系统出现死锁是因为(64)。不通过CPU进行主存与I/O设备间大量的信息交换方式可以是(65)方式。
执行P操作
解析:解析:这是一道操作系统的基础知识题,如果考生对大纲的相关章节记忆较好,这类题均属于送分题。
[单选题]一般说来,信息化需求包含三个层次,即(19)、(20)和(21)。
战略需求