7. A(n) ____ is a connection that uses public networks and their protocols to send data in a way that protects the data as well as a private network would, but at a lower cost.
a. public network c. virtual private network b. virtual public network d. private network
8. A ____ is a collection of rules for formatting, ordering, and error checking data sent across a network.
a. routing algorithm c. protocol b. backbone router d. packet
9. ____ determine how the sending device indicates that it has finished sending a message, and how the receiving device indicates that it has received the message. a. Routers c. Protocols b. Bridges d. Adapters
10. In networking applications, an 8-bit number is often called a(n) ____. a. octet c. piconet b. netbit d. bit 11. Network engineers have devised a number of stopgap techniques to stretch the supply of IP addresses. One of the most popular techniques is ____. a. subnetting c. sub-blocking b. subletting d. piconetting 12. A computer called a ____ converts private IP addresses into normal IP address when it forwards packets from those computers to the Internet. a. routing algorithm device c. subnet translation device
b. network address translation device d. private network device 13. The ____ numbering system uses 16 characters. a. hexadecimal c. binary b. decimal d. ASCII
14. IPv6 uses a ___ number for addresses. a. 32-bit c. 128-bit b. 56-bit d. 256-bit
15. The purpose of a(n) ____ is to respond to requests for Web pages from Web clients.
a. URL c. Web server
b. e-mail d. top-level domain
16. ____ specifies the format of a mail message and describes how mail is to be administered on the e-mail server and transmitted on the Internet. a. SMTP c. MIME b. TCP/IP d. POP
17. A newer e-mail protocol that performs the same basic functions as POP, but includes additional features, is known as ____. a. IMAP c. POPI b. SMTP d. IPOP
18. ____ lets users create and manipulate e-mail folders and individual e-mail messages while the messages are still on the e-mail server. a. POP c. IMAP b. SMTP d. MIME
7。（N）____ is a连接，使用公共网络及其协议发送数据in a way that as well as the data保护私人网络将，但在较低的成本。 虚拟专用网公用网诉。 虚拟专用网公用网. .
8。有____ is a collection of rules for格式，顺序，错误检查和数据在网络的感觉。路由协议算法C。B骨干路由分组.
9。____ determine How the sending indicates that it has finished设备发送消息，and How the接收装置indicates that it has received the消息。 路由器C协议。 B adapters桥.
10。在网络应用，一个8位号码往往是有____称为（N）。 字节诉微微网。 B位netbit .
11。网络工程师有devised a number of the supply of权宜之计to拉伸技术的IP地址。one of the ____是最流行的技术。 答：子网的子模块。 subletting piconetting . .
12。计算机将IP地址称为A ____私人IP地址，当它接近正常into packets从这些计算机互联网。
路由算法。subnet平移装置设备。 网络地址翻译设备.专用网络设备. 13。the ____编号系统用16字符。 答：二进制十六进制。 B十进制ASCII。
14。用了___ number for IPv6地址。 A 128位32位。 （56位256位.
15。the purpose of a（n）____ is to respond to requests for Web页面从Web客户。
Web服务器URL诉。 B电子邮件顶级域名。
16。____指定格式的邮件消息和describes how of a邮件is to be administered on the电子邮件服务器和因特网传输。 SMTP诉MIME。 B TCP / IP流行.
17。有newer电子邮件协议，行使the same基本功能包括额外的功能是流行，目的，is known as ____。 popi IMAP诉。 （IPOP SMTP。
18。____让用户创建和操纵的电子邮件文件夹和个人电子邮件消息的消息是while the still on the电子邮件服务器。 答：IMAP流行。 B，D MIME SMTP
19. ____ is a set of rules for handling binary files, such as word-processing
documents, spreadsheets, photos, or sound clips, that are attached to e-mail messages. a. IMAP c. SMTP b. MIME d. POP
20. The combination of the protocol name and the domain name is called the ____. a. URT c. URL b. URO d. HTTP
21. HTML was developed by ____. a. ARPANET c. Ted Nelson b. NSF d. Tim Berners-Lee
22. ____ was the first Web browser that became widely available for personal computers.
a. Mosaic c. Internet Explorer b. Netscape d. CompuServe
23. ____ are sets of words that are assigned to specific IP addresses. a. Domain names c. Octets b. URLs d. Piconets
24. The early versions of ____ let Web page designers create text-based electronic documents with headings, title bar titles, bullets, lines, and ordered lists. a. HTTP c. SGML b. HTML d. XML 25. In HTML, hyperlinks are created using the HTML ____ tag. a. head c. title b. anchor d. ol
Essay
1. As an individual packet travels from one network to another, the computers through which the packet travels determine the best route for getting the packet to its destination. Describe this process.
The computers that decide how to best forward each packet are called routing computers, router computers, routers, gateway computers (because they act as the gateway from a LAN or WAN to the Internet) or border routers (because they are located at the border between the organization and the Internet.) The programs on the routers that determine the best path contain rules called routing algorithms. The programs apply these algorithms to information they have stored in routing tables or configuration tables. This information includes lists of connections that lead to
particular groups of other routers, rules that specify which connection to use first, and rules for handling instances of heavy packet traffic and network congestion.
2. What is the difference between a public network and a private network?
The open architecture philosophy developed for the evolving ARPANET, which later became the core of the Internet, included the use of a common protocol for all computers connected to the Internet and four key rules for message handling: 1) Independent networks should not require any internal changes to be connected to the network, 2) Packets that do not arrive at their destinations must be retransmitted from their source network, 3) Router computers act as receive-and-forward devices; they do not retain information about the packets that they handle, and 4) No global control exists over the network.
19。____是一套处理二进制文件的规则，如字处理文档，电子表格，照片，或声音片段，是附加到电子邮件。 A. IMAP C. SMTP B.哑剧D.流行
20。该协议的名称和域名的组合被称为____。 A. URT C. URL B. URO D. HTTP
21。HTML是由____。 A. ARPANET C.尼尔森 B. NSF D.提姆伯纳斯李
22。____是第一个Web浏览器，成为广泛使用的个人电脑。 A.马赛克C. Internet Explorer B. D. CompuServe Netscape
23。____的话，被分配到特定的IP地址设置。 一个域名，C.
B. D.微微网的网址
24。早期版本的____让网页设计者创建基于文本的电子文档的标题，标题栏标题，子弹，线，和有序列表。 A. HTTP C. SGML B. D. XML HTML
25。在HTML中，超链接是使用HTML标签创建的____。 A. C.标题头 B.锚D. OL 的文章
1。作为一个单独的数据包从一个旅行到另一个计算机网络，通过该包旅行确定最佳路径获取数据包的目的地。描述这个过程。
计算机决定如何最好的每个数据包的转发路由的计算机被称为计算机，路由器，路由器，网关计算机（因为他们作为一个局域网或广域网的互联网网关）或边界路由器（因为它们位于组织和互联网。之间的边界），确定最佳路径包含规则称为路由算法的路由方案。程序将这些算法都存储在路由表中的表的信息或配置。这些信息包括连接，导致其他路由器的特定组的列表，指定使用哪个连接第一规则，而规则处理数据包的流量和网络拥塞的情况下，重。
2。公共网络和专用网络之间的区别是什么？
为不断发展的网络开发的开放式体系结构的思想，后来成为了互联网的核心，包括所有的计算机连接到互联网和信息处理的四个关键规则的共同协议的使用：1）独立的网络不需要任何内部的变化被连接到网络，2）的数据包，不到达目的地必须重发从源网络，3）路由器电脑作为接收和转发设备；他们不保留信息的数据包，他们处理，和4）没有全球性的控制存在的网络。
3. Identify the four key rules for message handling.
The TCP controls the disassembly of a message or a file into packets before it is
transmitted over the Internet, and it controls the reassembly of those packets into their original formats when they reach their destinations. The IP specifies the addressing details for each packet, labeling each with the packet’s origination and destination addresses.
4. What is the difference between TCP and IP?
The TCP controls the disassembly of a message or a file into packets before it is
transmitted over the Internet, and it controls the reassembly of those packets into their original formats when they reach their destinations. The IP specifies the addressing details for each packet, labeling each with the packet’s origination and destination addresses.
5. What are the advantages of Bluetooth technology? One major advantage of Bluetooth technology is that it consumes very little power, which is an important consideration for many devices. Another advantage is that Bluetooth devices can discover each other and exchange information automatically. For example, a person using a laptop computer in a temporary office can print to a local Bluetooth-enabled printer without logging in to the network or installing software in either device. The printer and laptop computer electronically recognize each other as Bluetooth devices and immediately can begin exchanging information.
3。确定信息处理的四大原则。
TCP控制信息或文件包拆之前就在网络上传输，它控制数据包的重新组装成原来的格式，当他们到达他们的目的地。IP指定每个数据包的处理细节，标记每个数据包的源地址和目的地址。 4。TCP和IP之间的区别是什么？
TCP控制信息或文件包拆之前就在网络上传输，它控制数据包的重新组装成原来的格式，当他们到达他们的目的地。IP指定每个数据包的处理细节，标记每个数据包的源地址和目的地址。 5。蓝牙技术的优点是什么？
蓝牙技术的一个主要优势是，它消耗很少的电力，这是许多设备的一个重要的考虑因素。另一个优点是，蓝牙设备可以彼此交换信息的自动发现。例如，在一个临时办公室使用一台笔记本电脑，一个人可以打印到本地蓝牙打印机没有登录到网络或设备或安装软件。打印机和笔记本电脑的电子识别出彼此的蓝牙设备，立即可以开始交换信息。
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