Câu hỏi:
22/03/2020 1,341Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.
As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. 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 considered hacking. This is commonly called 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, by far, 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 the 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.
The author mentioned in the third paragraph that active hackers are more dangerous because ______.
Sách mới 2k7: 30 đề đánh giá năng lực DHQG Hà Nội, Tp. Hồ Chí Minh, BKHN 2025 mới nhất (600 trang - chỉ từ 140k).
Quảng cáo
Trả lời:
Đáp án B
Tác giả đề cập trong đoạn 3 rằng tin tặc chủ động thì nguy hiểm hơn bởi vì __________.
A. chúng thường truy cập vào các mạng lưới quan trọng như ngân hàng hay quân đội.
B. chúng cài virus hay lấy trộm các thông tin cá nhân và thông tin quan trọng khác trong các hệ thống.
C. chúng thường xóa bỏ tất cả dữ liệu của hệ thông chúng xâm nhập.
D. chúng có thể làm nhiều thứ gây hại đến toàn bộ hệ thống mạng lưới máy tính.
Từ khóa: active hackers/ more dangerous
Căn cứ thông tin đoạn 3:
“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, by far, the more dangerous of the two."
(Một loại tin tặc khác cố gắng gây thiệt hại cho hệ thống máy tính mà họ xâm nhập. Sau khi truy cập vào hệ thống, những tin tặc này cấy virus vào hoặc thay đổi, xóa hay lấy trộm thông tin. Chúng được biết đến như là tin tặc chủ động và rõ ràng chúng là loại nguy hiểm hơn trong 2 loại tin tặc).
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
Teenagers can become addicted to social networking if they can't control they spend online.
Câu 2:
Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
The best hope of avoiding downmarket tabloid TV future lies in the pressure currently being put on the networks to clean up their act.
Câu 3:
Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word (s) in each of the following questions.
Sometimes, in order to get things done, you have to take the initiative.
Câu 4:
I have visited ______ Portugal but I have never been to ______ Netherlands.
Câu 5:
People often use the natural world as inspiration to design and invent new ______.
Câu 7:
In many countries, divorces ______ to rise because of long-standing conflicts.
về câu hỏi!