K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

9 tháng 3 2022

With the availability of the Internet, we are able to get (excess / access / assess / incest) to much more information than people of yesteryears

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors. While there is little doubt that the Internet will eventually be a fast

Which of the following best serves as the title for the passage?

A. Security concerns of the Internet.

B. Internet’s current problems. 

C. The development of the Internet.

D. The disadvantages of the Internet.

1
12 tháng 10 2017

Đáp án C.

Giải thích: Đoạn 1 giới thiệu về Internet. Đoạn 2 nói về việc Internet phát triển nhanh cùng với một vài nhược điểm cần khắc phục; Đoạn 3 nói về Internet II; Đoạn 4 nói về Intranets.

=> Cả bài đọc hiểu đều nói về sự phát triển của Internet.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors. While there is little doubt that the Internet will eventually be a fast a reliable service, industry and the academic community have taken their own steps toward making more practical global networks.

According to the passage, what benefits does Internet II have over the Internet?

A. There is no governmental intervention regulating Internet II. 

B. Small businesses pay higher premiums to access the Internet.

C. Internet II contains more information than the Internet. 

D. Internet II has fewer users and therefore is faster to access.

1
6 tháng 6 2017

Đáp án D.
Ý trong bài: “Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed to access. Consequently, the time required to receive information has decreased.” 
(Internet II là một hệ thống nhỏ hơn, chuyên dụng hơn dành cho mục đích học tập. Vì nó là chuyên môn hơn, ít người dùng hơn được phép truy cập. Do đó, thời gian cần thiết để nhận thông tin đã giảm (tức là thời gian truy cập nhanh hơn.

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes, a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, the service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors. While there is little doubt that the Internet will

eventually be a fast and reliable service, industry and the academic community have taken their own steps toward making more practical global networks.

In the passage, which of the following ts NOT true of the Internet?

A. It has become increasingly less popular.

B. It has created a sense of financial security

C. It tends to be unreliable

D. It is sometimes too slow to access

1
15 tháng 11 2017

Đáp án A

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer. The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes, a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, the service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors.

While there is little doubt that the Internet will eventually be a fast and reliable service, industry and the academic community have taken their own steps toward making more practical global networks.

With which of the following conclusions would the author probably agree?

A. Fewer academic communities need to create their own Internet systems

B. An Internet system with fewer users would be quicker

C. The technology used by Internet creators is too complex for computer owners to understand

D. Companies who develop their own Intranets are limiting their information data base

1
17 tháng 8 2019

D

Với những kết luận nào sau đây tác giả có thể đồng ý?

A. ngày càng ít các cộng đồng học thuật hơn cần tạo ra các hệ thống Internet riêng của họ.

B. Một hệ thống Internet với ít người dùng sẽ nhanh hơn.

C. Công nghệ được sử dụng bởi người sáng tạo Internet là quá phức tạp để chủ sở hữu máy tính hiểu.

D. Các công ty phát triển Intranet của riêng họ đang hạn chế cơ sở dữ liệu thông tin của họ.

Thông tin ở đoạn cuối: Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors.

Tạm dịch:

Một lợi ích khác của Intranet là tăng cường bảo mật. Vì chỉ nhân viên công ty mới có quyền truy cập vào thông tin trên Intranet, thông tin của họ được bảo vệ khỏi các đối thủ cạnh tranh.

=>Đáp án D

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer.The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes, a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, the service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors. While there is little doubt that the Internet will eventually be a fast and reliable service, industry and the academic community have taken their own steps toward making more practical global networks.

 

With which of the following conclusions would the author probably agree?

A. Fewer academic communities need to create their own Internet systems

B. An Internet system with fewer users would be quicker

C. The technology used by Internet creators is too complex for computer owners to understand

D. Companies who develop their own Intranets are limiting their information data base

1
2 tháng 7 2017

Đáp án D

Tác giả có thể đồng ý với kết luận nào sau đây:

A. Ít cộng đồng học thuật hơn cần tạo ra hệ thống Internet của riêng họ.

B. Một hệ thống Internet với ít người dùng sẽ nhanh hơn.

C. Công nghệ được người sáng tạo Internet sử dụng quá phức tạp đối với chủ sở hữu máy tính.

D. Các công ty phát triển mạng Intranet của riêng họ đang hạn chế cơ sở dữ liệu thông tin của họ.

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes, a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, the service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors. While there is little doubt that the Internet will

eventually be a fast and reliable service, industry and the academic community have taken their own steps toward making more practical global networks.

As it can be inferred from the passage, what benefits does Internet II have over the Internet I?

A. Small businesses pay higher premiums to access to the Internet

B. Internet II contains more information than the Internet.

C. Internet II has fewer users and therefore is faster to access

D. There is no governmental intervention regulating Internet II.

1
11 tháng 10 2019

Đáp án C

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42. THE DIGITAL DIVIDEInformation technology is influencing the way many of us live and work today. We use the Internet to look and apply for jobs, shop, conduct research, make airline reservations, and explore areas of interest. We use e-mail and the Internet to communicate instantaneously with friends and business associates around the world....
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

 THE DIGITAL DIVIDE

Information technology is influencing the way many of us live and work today. We use the Internet to look and apply for jobs, shop, conduct research, make airline reservations, and explore areas of interest. We use e-mail and the Internet to communicate instantaneously with friends and business associates around the world. Computers are commonplace in homes and the workplace.

Although the number of Internet users is growing exponentially each year, most of the world’s population does not have access to computers or the Internet. Only 6 percent of the population in developing countries are connected to telephones. Although more than 94 percent of U.S. households have a telephone, only 42 percent have personal computers at home and 26 percent have Internet access. The lack of what most of us would consider a basic communications necessity the telephone does not occur just in developing nations. On some Native American reservations only 60 percent of the residents have a telephone. The move to wireless connections may eliminate the need for telephone lines, but it does not remove the barrier to equipment costs.

Who has Internet access? Fifty percent of the children in urban households with an income over $75,000 have Internet access, compared with 2 percent of the children in low-income, rural households. Nearly half of college-educated people have Internet access, compared to 6 percent of those with only some high school education. Forty percent of households with two parents have access; 15 percent of female, single-parent households do. Thirty percent of white households, 11 percent of black households, and 13 percent of Hispanic households have access. Teens and children are the two fastest-growing segments of Internet users. The digital divide between the populations who have access to the Internet and information technology tools is based on income, race, education, household type, and geographic location. Only 16 percent of the rural poor, rural and central city minorities, young householders, and single parent female households are connected..

Another problem that exacerbates these disparities is that African-Americans, Hispanics, and Native Americans hold few of the jobs in information technology. Women hold about 20 percent of these jobs and are receiving fewer than 30 percent of the computer science degrees. The result is that women and members of the most oppressed ethnic groups are not eligible for the jobs with the highest salaries at graduation. Baccalaureate candidates with degrees in computer science were offered the highest salaries of all new college graduates in 1998 at $44,949.

Do similar disparities exist in schools? More than 90 percent of all schools in the country are wired with at least one Internet connection. The number of classrooms with Internet connections differs by the income level of students. Using the percentage of students who are eligible for free lunches at a school to determine income level, we see that nearly twice as many of the schools with more affluent students have wired classrooms as those with high concentrations of low-income students.

Access to computers and the Internet will be important in reducing disparities between groups. It will require greater equality across diverse groups whose members develop knowledge and skills in computer and information technologies. If computers and the Internet are to be used to promote equality, they will have to become accessible to populations that cannot currently afford the equipment which needs to be updated every three years or so. However, access alone is not enough. Students will have to be interacting with the technology in authentic settings. As technology becomes a tool for learning in almost all courses taken by students, it will be seen as a means to an end rather than an end in itself. If it is used in culturally relevant ways, all students can benefit from its power.

Which of the sentences below best expresses the information in the statement “Although the number ............. or the Internet.” in the paragraph 2?

A. The number of computers that can make the Internet available to most of the people in the world is not increasing fast enough

B. The Internet is available to most of the people in the world, even though they don't have their own computer terminals

C. Most of the people in the world use the Internet now because the number of computers has been increasing every year

D. The number of people who use computers and the Internet is increasing every year, but most people in the world still do not have connections

1
30 tháng 10 2019

Đáp án D

Thông tin: Although the number of Internet users is growing exponentially each year, most of the world’s population does not have access to computers or the Internet.

Dịch nghĩa: Mặc dù số lượng người sử dụng Internet đang tăng theo cấp số nhân mỗi năm, phần lớn dân số thế giới không được tiếp cận với máy tính hoặc Internet.

Phương án D. The number of people who use computers and the Internet is increasing every year, but most people in the world still do not have connections. = Số lượng người sử dụng máy tính và mạng Internet đang tăng lên hàng năm, những phần lớn nguwoif dân trên thế giới vẫn không có sự kết nối mạng, là phương án chính xác nhất.

          A. The number of computers that can make the Internet available to most of the people in the world is not increasing fast enough. = Số lượng máy tính có thể làm cho Internet có sẵn cho hầu hết những người trên thế giới tăng không đủ nhanh.

          B. The Internet is available to most of the people in the world, even though they don't have their own computer terminals. = Internet là có sẵn cho hầu hết những người trên thế giới, mặc dù họ không có thiết bị đầu cuối máy tính của mình.

          C. Most of the people in the world use the Internet now because the number of computers has been increasing every year = Hầu hết mọi người trên thế giới sử dụng Internet hiện nay vì số lượng máy tính đã đang tăng lên hàng năm.

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes, a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, the service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors. While there is little doubt that the Internet will eventually be a fast and reliable service, industry and the academic community have taken their own steps toward making more practical global networks.

According to the author, what is one reason why the Internet is sometimes slow?

A. Phone lines are often too busy with phone calls and fax transmissions to handle Internet traffic.

B. Most people do not have computers that are fast enough to take advantage of the Internet.

C. Often a request must travel through many computers before it reaches its final destination.

D. Scientists take up too much time on the Internet, thus slowing it down for everyone else.

1
5 tháng 8 2019

Đáp án C

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The advent of the Internet may be one of the most important technological developments in recent years. Never before have so many people had access to so many different sources of information. For all of the Internet’s advantages, however, people are currently becoming aware of some of its drawbacks and are looking for creative solutions. Among the current problems, which include a general lack of reliability and numerous security concerns, the most crucial is speed.

First of all, the Internet has grown very quickly. In 1990, only a few academics had ever heard of the Internet. In 1996, over 50 million people used it. Every year, the number of people with access to the Internet doubles. The rapid growth has been a problem. The computer systems which run the Internet have not been able to keep up with the demand. Also, sometimes a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, service is often slow and unpredictable. Service also tends to be worse when the Internet is busiest - during the business day of the Western Hemisphere - which is also when companies need its service the most.

Some people are trying to harness the power of networked computers in such a way as to avoid this problem. In 1995, a group of American universities banded together to form what has come to be known as Internet II. Internet II is a smaller, more specialized system intended for academic use. Since it is more specialized, fewer users are allowed access. Consequently, the time required to receive information has decreased.

Businesses are beginning to explore a possible analogue to the Internet II. Many businesses are creating their own “Intranets”. These are systems that can only be used by the members of the same company. In theory, fewer users should translate into a faster system. Intranets are very useful for large national and international companies whose branches need to share information. Another benefit of an Intranet is an increased amount of security. Since only company employees have access to the information on the Intranet, their information is protected from competitors. While there is little doubt that the Internet will eventually be a fast a reliable service, industry and the academic community have taken their own steps toward making more practical global networks.

According to the author, what is one reason why the Internet is sometimes slow?

A. Phone lines are often too busy with phone calls and fax transmissions to handle Internet traffic. 

B. Most people do not have computers that arc fast enough to take advantage of the Internet. 

C. Often a request must travel through many computers before it reaches its final destination. 

D. Scientists take up too much time on the Internet, thus slowing it down for everyone else.

1
30 tháng 12 2017

Đáp án C.
Ý trong bài: “Also, sometimes a request for information must pass through many routing computers before the information can be obtained. A request for information made in Paris might have to go through computers in New York, Los Angeles and Tokyo in order to obtain the required information. Consequently, service is often slow and unpredictable.” 
(Ngoài ra, đôi khi yêu cầu thông tin phải đi qua nhiều máy tính định tuyến trước khi có thể nhận được thông tin. Yêu cầu thông tin được thực hiện ở Paris có thể phải đi qua các máy tính ở New York, Los Angeles và Tokyo để thu được thông tin được yêu cầu. Do đó, dịch vụ thường chậm và không thể đoán trước.)