To answer this question, you need to understand the concept of how hackers gain entry to a network by pretending to be at a legitimate computer.
Option A) Phishing - This option is incorrect because phishing is a method where hackers trick individuals into revealing sensitive information, such as usernames, passwords, or credit card details, by pretending to be a trustworthy entity through email, phone calls, or fake websites.
Option B) Forging - This option is incorrect because forging typically refers to creating counterfeit documents or imitating someone's signature. It is not directly related to hackers gaining entry to a network by pretending to be at a legitimate computer.
Option C) ID Theft - This option is incorrect because identity theft involves stealing someone's personal information, such as their name, Social Security number, or credit card details, for fraudulent purposes. It does not directly relate to hackers pretending to be at a legitimate computer to gain entry to a network.
Option D) IP Spoofing - This option is correct because IP spoofing is a technique used by hackers to forge or fake the source IP address of a packet to make it appear as if it is coming from a legitimate computer on the network. By doing this, hackers can bypass network security measures and gain unauthorized access to the network.
The correct answer is D) IP Spoofing. This option is correct because it accurately describes the method that hackers use to gain entry to a network by pretending to be at a legitimate computer.