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从下面的答案中，选出应填入下面叙述中______内的最确切的解答。 Network managers have long （1) pract

从下面的答案中，选出应填入下面叙述中______内的最确切的解答。

Network managers have long(1)practical voice-over-IP (VOIP) solutions. VOIP(2)ease network management and decreases costs by converging a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's head-quarters with far-reaching branch offices can(3)tremendous amounts of(4)in long distance phone bills, provided that solution delivers POTS-Iike voice(5)over the Internet.

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发布时间：2020-07-18

更多“从下面的答案中，选出应填入下面叙述中______内的最确切的解答。 Network managers have long （1) pract”相关的问题

第1题

从下面的答案中选出应填入下面叙述中______内的最确切的解答。 The growth of switching has （1) a new

从下面的答案中选出应填入下面叙述中______内的最确切的解答。

The growth of switching has(1)a new generation of network management tools that help(2)cope with the challenges,(3)them to correlate device alarms in order to(4)pinpoint root causes, or to monitor service levels without depending on IP subnetting schemes. These new tools have become essential to coping with the primary(5)effect of any treatment that significantly increases network flexibility: added complexity.

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第2题

从下面的叙述中选出4条正确的叙述：（)A．一个进程的状态发生变化总会引起其它一些进程的状态发

从下面的叙述中选出4条正确的叙述：()

A．一个进程的状态发生变化总会引起其它一些进程的状态发生变化。

B．进程被挂起(suspend)后，状态变为阻塞状态。

C．信号量的初值不能为负数。

D．线程是CPU调度的基本单位，但不是资源分配的基本单位。

E．在进程对应的代码中使用wait、signal操作后，可以防止系统发生死锁。

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第3题

从供选择的答案中，选出应填入下面叙述中______内的最确切的解答。 Soon, more of the information we recel

从供选择的答案中，选出应填入下面叙述中______内的最确切的解答。

Soon, more of the information we recelve via the internet could come(1)in digital wrappers.

Wrappers are made up(2)software code that's targeted to do specific things with the data(3)within them, such as helping to define queries for search engines. They also keep(4)from(5)access to that code.

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第4题

从下面的叙述中选出一条正确的叙述：（)A．操作系统的一个重要概念是进程，不同进程所执行的代码

从下面的叙述中选出一条正确的叙述：()

A．操作系统的一个重要概念是进程，不同进程所执行的代码也不同。

B．操作系统通过PCB来控制和管理进程，用户进程可从PCB中读出与本身运行状态相关的信息。

C．当进程由执行状态变为就绪状态时，CPU现场信息必须被保存在PCB中。

D．当进程申请CPU得不到满足时，它将处于阻塞状态。

E．进程是可与其它程序并发执行的程序在一个数据集合上的运行过程，所以程序段是进程存在的唯一标志。

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第5题

选出应填入下面一段英语中______内的正确答案。 An Intranet is （1) the application oflnternet techn

选出应填入下面一段英语中______内的正确答案。

An Intranet is(1)the application oflnternet technology within an internal or closed user group. Internets are company(2)and do not have a(3)connection to the Internet. Used properly an Internet is highly effective corporate tool, capable ofregularly(4)information to empower the workforce with the information needed to perform their roles. Used in this way, Internet represents a step towards the(5)office.

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第6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7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。 All of these applications will enhanc

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。

All of these applications will enhance the(1)oflife and spur economic growth. Over half of the U.S. work force is now in jobs that are information(2). The telecornmunication and information sector of the U.S. economy now(3)for 12 percent of the Gross Domestic Product, growing much faster than any other sector ofthe economy. Last year the(4)in this sector exceeded 700 billion dollars. The U.S. exported over 48 billion dollars of telecommunication equipment(5).

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第8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。 The relational database model require

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。

The relational database model requires the data be(1)through programs that don't rely on the position of the data in the database. This is in direct(2)to the other database mode, where the program has to follow a series of pointers to the data it seeks.A program(3)a relational database simply asks for the data it seeks; the DBMS performs the necessary searches and(4)the information. The(5)on how the search is done are specific to the DBMS and vary from product to product.

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第9题

选出应填入下面一段英语中______内的正确答案。 In a public-key cryptosystem, （1) encrypted with th

选出应填入下面一段英语中______内的正确答案。

In a public-key cryptosystem,(1)encrypted with the public key can only be deciphered with the private key from the same(2). Conversely,(1)encrypted with the private key can be decrypted only with the public key. Users can make their public keys(3)available or place them at a key distribution center or others to access. However, the private key must be(4)safe. In public-key systems there's no(5)to find a safe channel for communicating a shared secret key.

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第10题

2．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 a

2．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。

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