300+ câu trắc nghiệm tiếng anh chuyên nghành bảo mật thông tin có đáp án - Phần 5

The point where the backbones of the Internet connect is called what?

It utilized a multimodal approach to spreading. This means that it used more than one mechanism to spread and infect new machines. It would copy itself to any shared drives on your network and would email itself out to everyone in your address book. What is it?

Ask several people to open their browsers and key the IP address of that machine in the address........... They should then be viewing the default website for that web server.

A virus will usually spread primarily in one of two ways. The first is to simply … your computer for connections to a network and then … itself to other machines on the network to which your computer has access. This is actually the most efficient way for a virus to spread.

In net user script, the attacker writes the following two-line script (obviously the word localaccountname is replaced with an actual local account name.):

The email it sent claimed to be from your system administrator. It would tell you that your email account had been infected by a virus and that you should open the attached file to get instructions. Once you opened the attached file, your system was infected. What is this?

What does DNS mean?

What does SMTP mean?

What is IPv4 length?

A … is basically an intelligent hub; it works and looks exactly like a hub, with one significant difference. When a … receives a packet, it will send that packet only out the port for the computer to which it needs to go. A … essentially a hub that is able to determine where a packet is being sent.

… is a unit of data transmission. Has a header (shows origin, destination, packet type), body (data) and a footer (indicates when the message is over)

Which of the following reasons most likely made the Bagle virus spread so rapidly?

Multi-partite viruses attack the computer in multiple ways for example, infecting the boot sector of the … and one or more files.

When was Ethernet cable developed?

There is a third method, called … scanning.

It is based .........the fact that any device has operational limits.

By now you are aware, in a general way, of the dangers of the Internet, and you have ........a few basic rules for protection on the Internet.

… is fast becoming as big a problem, even bigger than viruses.

Another new type of virus has been gaining popularity in the past few years, and that is the “… virus” or, put simply, a hoax. Rather than actually writing a virus, a hacker sends an email to every address he has. The email claims to be from some well-known antivirus center and warns of a new virus that is circulating. The email instructs people to delete some file from their computer to get rid of the virus. The file, however, is not really a virus but part of a computer’s system.

What port does POP3 use?