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选出应填入下面一段英语中______内的正确答案。 Most IP layer-based proxy mechanisms, such as network a

选出应填入下面一段英语中______内的正确答案。

Most IP layer-based proxy mechanisms, such as network address translation (NAT), only support unidirectional proxy, from the internal network to external network (the Internet). The proxy establishes the communication channel by(1)IP addresses. The IP addresses must be(2). These proxy mechanisms prevent applications that must establish return data channels from establishing their data channels, such as, multimedia applications. IP layer-based proxy mechanisms need additional software(3)for each application that uses.(4)channels. SOCKS identifies communication targets through domain names, overcoming the restriction of using private IP addresses. SOCKS can use domain names to establish communication between separate LANs,with(5)IP addresses.

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更多“选出应填入下面一段英语中______内的正确答案。 Most…”相关的问题

第1题

选出应填入下面一段英语中______内的正确答案 The terms FIFO and LIFO refer to two techniques for （1

选出应填入下面一段英语中______内的正确答案

The terms FIFO and LIFO refer to two techniques for(1)with collection of items to which additions and(2)are to be made. The acronym FIFO(3)for first-in-first-out and LIFO represents last-in-first-out. Derived from business accounting and investing management(4), these techniques have found widespread application in computer science. For example, the LIFO technique has been used in the parsing techniques employed by compilers and in the(5)of data.

供选择的答案：

(1) producing (2) dealing (3) networking (4) searching

(5) deletions (6) locations (7) observations (8) notations

(9) stands (10) represents (11) finds (12) replaces

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第2题

从供选择的答案中选出应填入下面一段英文中______内的正确答案。 In computers, encoding is the process o

从供选择的答案中选出应填入下面一段英文中______内的正确答案。

In computers, encoding is the process of putting a sequence of(1)characters (letters, numbers, punctuation, and certain symbols) into a specialized(2)format for efficient transmission or storage.(3)Decoding is the opposite process—the conversion of an encoded format back into the original(4)sequence of characters. Encoding and decoding are used in data communications, networking, and storage. The term is especially(5)applicable to radio (wireless) communications systems.

The terms encoding and decoding are often used in reference to the(6)processes of analog-to-digital conversion and digital-to-analog conversion. In this sense, these(7)terms can apply to any form of data, including text, images, audio, video,(8)multimedia, computer programs, or signals in sensors, telernetry, and control systems. Encoding should not be confused with encryption, a process in which data is deliberately altered so as to(9)concealits content. Encryption can be done without changing the particular(10)code that the content is in, and encoding can be done without deliberately concealing the content.

供选择的答案：

1．terms 2．Decoding 3．processes 4．format 5．code

6．multimedia 7．applicable 8．conceal 9．equence 10．characters

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第3题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 Software quality assurance is now an

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

Software quality assurance is now an(1)sub-discipline of software engineering. As Buckly and Oston point out,(2)software quality assurance is likely to lead to an ultimate(3)of software costs. However, the major hurdle in the path of software management in this area is the lack of(4)software standards. The development of accepted and generally applicable standards should be one ofthe principal goals of(5)in software engineering.

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第4题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 Mobile computers—which （1) laptop

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

Mobile computers—which(1)laptops, notebooks, subnotebooks and handhelds—(2)so ubiquitous in such a short time, no surprise to hear who say:"It will define the leading edge(3)the next five years or so."The most remarkable(4)mobile computers is the amount of data storage and memory packed(5)their tiny boxes. These devices not only handle windows easily but also run storage-hungry programs.

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第5题

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 Applications put computers to practic

从下面提供的答案中选出应填入下列英文语句中______内的正确答案。

Applications put computers to practical business(1), but below the(2)it's the heart of an operating system-the kernel-that provides the technical wizardry to juggle multiple program,connect to networks and store(3)．

A traditional kernel provides all the functions for applications.The kemel(4)memory, I/O devices and parcels out processor time.

The kernel also supports securityand fault(5), which is the ability to recover automatically when parts of the system fail.

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第6题

Instructions:建议你在30分钟内，根据下面所给的题目和提纲用英语写出一篇不少于80词的短文。1.回忆值得记忆的一天;2.说明为什么值得记忆。A Day to Remember

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第7题

下面哪一项不属于语言与政治之间的关系：()

A.英语中北欧词汇遗留

B.英语中本土词汇的存在

C.英语中法语词汇遗留

D.英语中意大利词汇的遗留

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第8题

加密工具PGP用的是杂合加密算法，从下面列表中选出一正确答案。（)

A.RSA和对称加密算法

B.Diffie-Hellman和传统加密算法

C.Elgamal和传统加密算法

D.RSA和Elgamal

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第9题

拉合设备【断路器（开关)、隔离开关（刀闸)、接地刀闸（装置)等】后检查设备的位置应填入操作票内;（）

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第10题

下面程序的输出结果为：87，则横线处应填入()。 #include using namespace std;struct Student

{char num[8];char name[10]}int score[3];} stu[]={{“1210101”，“Zhangsan”，{87，97，67}}，{“1210102”，“Lisi”，{92，86，79}}}; int main() {cout##; return 0;}

A.stu[1].score[1]

B.stu[0].score[0]

C.stu[1].score[0]

D.stu[0].score[1]

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第11题

进行停、送电操作时，在手车式开关拉出、推入前，必须检查开关确在分闸位置，此检查项目应填入操作票内。（)

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