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Câu hỏi:

19/09/2021 320

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 31 to 35.

 One of the greatest security threats in the online world is computer hacking. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things?

 Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.

 In fact, just the act of entering a computer network is commonly considered passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank or military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are the more dangerous of the two.

 The easiest way to protect a system is with a good password. Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them new code to use the next time. Even if a hacker steals the password, they won’t have the code. Or if the hacker somehow gets the code, they still don’t know the password

Câu 32 (TH): The word "valid" in paragraph 2 is closest in meaning to __________.

A. easy

B. expensive

C. acceptable

Đáp án chính xác

D. free

 Xem lời giải

Trả lời:

verified Giải bởi Vietjack

Câu 32: Đáp án C

Từ "valid" trong đoạn 2 thì gần nghĩa nhất với _________.

A. easy: dễ

B. expensive: đắt

C. acceptable: có thể chấp nhận

D. free: miễn phí

=> valid (adj): hợp lệ = acceptable

Thông tin: When a computer connects to another system, the protocols check to see if the access is valid.

Tạm dịch: Khi một máy tính kết nối với hệ thống khác, các giao thức sẽ kiểm tra xem quyền truy cập có hợp lệ hay không.

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

Mark the the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Câu 22 (TH): My neighbor is a reckless driver. He has been fined for speeding and has his license suspended for 3 months.

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Câu 2:

Câu 8 (VDC): My sister is feeling unwell. That's why she is eating like a ______ today.

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Câu 3:

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Câu 50 (VDC): After he had finished the report, he submitted it to the director

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Câu 4:

Câu 17 (VD): If we want to develop inner tranquility, we have to stop ______ by every little thing.

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Câu 5:

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Câu 49 (VDC): My wife didn't leave the car keys. I couldn't pick her up at the station.

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Câu 6:

Câu 19 (TH): In the past people believed that women's ______ roles were as mothers and wives.

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Câu 7:

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Trả lời cho các câu 46, 47, 48 dưới đây:

Câu 46 (VD): You were expected to answer all the questions on the exam paper but you didn't.

Xem đáp án » 19/09/2021 5,531

Câu 8:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29.

People born in different ages are different from each other in various aspects. The world is (26) ______ at a rapid pace and thus the difference between people born in different times is inevitable. Generation gap is the term given to the difference between two generations. The society changes at a constant pace and hence the lifestyle, ideologies, opinions, beliefs and the overall behavior of people also (27) ______ change with time. This change gives way to newer ideas and breaks the unreasonable stereotypes and this in turn has a positive (28) ______ on the society. (29) ______, most of the times it becomes a cause of conflict between two generations. The parent child relationship is often affected due to their generation gap. It has been observed that the parents try to impose their values and ideologies on their kids while the later want to explore the world on their own. Many relationships have suffered due to generation gap. Several parents and children have conflicts because of their difference of opinions (30) ______ they must understand is natural as there is a generation gap between them.

Câu 26 (TH):

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Câu 9:

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Câu 48 (VD): I started working in this company when I came back from Japan.

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Câu 10:

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Câu 4 (NB):

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Câu 11:

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

Câu 47 (VDC): Julie to her neighbor: “Oh, it wasn't me who started that ugly rumor about you.”

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Câu 12:

Mark the the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Câu 23 (VDC): The Covid – 19 pandemic has taken a heavy toll on the economy of many countries.

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Câu 13:

Câu 9 (TH): Over 200 people attended the ceremony; many of ______ had known Steve as their teacher.

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Câu 14:

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.

 It is estimated that by 2050 more than two-thirds of the world's population will live in cities, up from about 54 percent today. While the many benefits of organized and efficient cities are well understood, we need to recognize that this rapid, often unplanned urbanization brings risks of profound social instability, risks to critical infrastructure, potential water crises and the potential for devastating spread of disease. These risks can only be further exacerbated as this unprecedented transition from rural to urban areas continues.

 How effectively these risks can be addressed will increasingly be determined by how well cities are governed. The increased concentration of people, physical assets, infrastructure and economic activities mean that the risks materializing at the city level will have far greater potential to disrupt society than ever before.

 Urbanization is by no means bad by itself. It brings important benefits for economic, cultural and societal development. Well managed cities are both efficient and effective, enabling economies of scale and network effects while reducing the impact on the climate of transportation. As such, an urban model can make economic activity more environmentally-friendly. Further, the proximity and diversity of people can spark innovation and create employment as exchanging ideas breeds new ideas.

 But these utopian concepts are threatened by some of the factors driving rapid urbanization. For example, one of the main factors is rural-urban migration, driven by the prospect of greater employment opportunities and the hope of a better life in cities. But rapidly increasing population density can create severe problems, especially if planning efforts are not sufficient to cope with the influx of new inhabitants. The result may, in extreme cases, be widespread poverty. Estimates suggest that 40% of the world's urban expansion is taking place in slums, exacerbating socio-economic disparities and creating unsanitary conditions that facilitate the spread of disease.

 The Global Risks 2015 Report looks at four areas that face particularly daunting challenges in the face of rapid and unplanned urbanization: infrastructure, health, climate change, and social instability. In each of these areas we find new risks that can best be managed or, in some cases, transferred through the mechanism of insurance.

Câu 42 (VD): The word “spark” in paragraph 3 is closest in meaning to ___________.

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Câu 15:

Câu 14 (NB): If he didn't have to work today, he ______ his children to the zoo.

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