How does an attacker observe network traffic exchanged between two users?
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A. B. C. D.B.
The correct answer to the question is B. man-in-the-middle.
When an attacker wants to observe network traffic exchanged between two users, they may use a technique called a man-in-the-middle (MitM) attack. In this type of attack, the attacker intercepts the communication between two users by positioning themselves in the middle of the communication channel, so that all data flowing between the two users is routed through the attacker's system.
The attacker can then analyze the intercepted traffic, which may contain sensitive information such as usernames, passwords, credit card numbers, or any other confidential information that was being exchanged. The attacker may also modify the traffic or inject their own data, allowing them to execute various types of attacks, such as stealing information or launching further attacks against the users or the network.
There are several ways an attacker can perform a MitM attack, such as ARP spoofing, DNS spoofing, or using a rogue access point. Regardless of the method, the goal is to trick the two users into thinking that they are communicating directly with each other, when in reality, their traffic is being intercepted and monitored by the attacker.
Port scanning, command injection, and denial of service are all different types of attacks that do not directly involve observing network traffic between two users. Port scanning involves probing a network to discover open ports and services running on a target system. Command injection involves exploiting vulnerabilities in a system to execute arbitrary commands. Denial of service involves overwhelming a system or network with traffic to render it unavailable to users.