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HomeworkChapter2

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2024年5月20日发(作者:堵开)

HomeworkChapter2

《Computer Networks and Internet》

Chapter 2

1。 Consider the following string of ASCII characters that were captured by Wireshark when

the browser sent an HTTP GET message (i.e., this is the actual content of an HTTP GET message).

The characters 〈cr〉 are carriage return and line-feed characters (that is, the italized

character string 〈cr〉 in the text below represents the single carriage-return character that was

contained at that point in the HTTP header)。 Answer the following questions, indicating where

in the HTTP GET message below you find the answer。

GET /cs453/index。html HTTP/1.1〈lf〉Host: User—Agent:

Mozilla/5。0 (Windows;U; Windows NT 5.1; en-US; rv:1。7。2) Gecko/20040804 Netscape/7.2 (ax)

Accept:ext/xml, application/xml, application/xhtml+xml, text/html;q=0。9, text/plain;

q=0.8,image/png,*/*;q=0.5〈cr>〈lf>Accept—Language: en-us,en;q=0。5〈cr〉〈lf〉Accept—Encoding:

zip,deflateAccept—Charset: ISO—8859-1,utf-8;q=0.7,*;q=0.7〈cr>Keep—Alive:

300Connection:keep—alive〈lf〉

a。 What is the URL of the document requested by the browser?

b. What version of HTTP is the browser running?

c。 Does the browser request a non—persistent or a persistent connection?

d. What is the IP address of the host on which the browser is running?

1

HomeworkChapter2

e。 What type of browser initiates this message? Why is the browser type needed in an HTTP

request message?

考虑以下的ASCII字符字符串被Wireshark当浏览器发送一个HTTP GET消息(即。,这是一个HTTP GET消息

的实际内容).字符〈 cr 〉 〈 >如果是回车和换行符字符(即italized下面的文本字符串〈 cr 〉代表单一回车

字符包含在这一点上的HTTP头).回答下列问题,表明在HTTP GET消息下面你找到答案.

a。什么是文档的URL请求的浏览器?

b。浏览器运行HTTP版本是什么?

c。浏览器请求一个非持久性或持久连接?

d。什么是浏览器的IP地址的主机运行吗?

e.什么样的浏览器启动这个消息吗?为什么浏览器类型所需的HTTP请求消息吗?

浏览器类型信息需要由服务器发送同一对象的不同版本,不同类型的浏览器。

2

2024年5月20日发(作者:堵开)

HomeworkChapter2

《Computer Networks and Internet》

Chapter 2

1。 Consider the following string of ASCII characters that were captured by Wireshark when

the browser sent an HTTP GET message (i.e., this is the actual content of an HTTP GET message).

The characters 〈cr〉 are carriage return and line-feed characters (that is, the italized

character string 〈cr〉 in the text below represents the single carriage-return character that was

contained at that point in the HTTP header)。 Answer the following questions, indicating where

in the HTTP GET message below you find the answer。

GET /cs453/index。html HTTP/1.1〈lf〉Host: User—Agent:

Mozilla/5。0 (Windows;U; Windows NT 5.1; en-US; rv:1。7。2) Gecko/20040804 Netscape/7.2 (ax)

Accept:ext/xml, application/xml, application/xhtml+xml, text/html;q=0。9, text/plain;

q=0.8,image/png,*/*;q=0.5〈cr>〈lf>Accept—Language: en-us,en;q=0。5〈cr〉〈lf〉Accept—Encoding:

zip,deflateAccept—Charset: ISO—8859-1,utf-8;q=0.7,*;q=0.7〈cr>Keep—Alive:

300Connection:keep—alive〈lf〉

a。 What is the URL of the document requested by the browser?

b. What version of HTTP is the browser running?

c。 Does the browser request a non—persistent or a persistent connection?

d. What is the IP address of the host on which the browser is running?

1

HomeworkChapter2

e。 What type of browser initiates this message? Why is the browser type needed in an HTTP

request message?

考虑以下的ASCII字符字符串被Wireshark当浏览器发送一个HTTP GET消息(即。,这是一个HTTP GET消息

的实际内容).字符〈 cr 〉 〈 >如果是回车和换行符字符(即italized下面的文本字符串〈 cr 〉代表单一回车

字符包含在这一点上的HTTP头).回答下列问题,表明在HTTP GET消息下面你找到答案.

a。什么是文档的URL请求的浏览器?

b。浏览器运行HTTP版本是什么?

c。浏览器请求一个非持久性或持久连接?

d。什么是浏览器的IP地址的主机运行吗?

e.什么样的浏览器启动这个消息吗?为什么浏览器类型所需的HTTP请求消息吗?

浏览器类型信息需要由服务器发送同一对象的不同版本,不同类型的浏览器。

2

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