Final answer:
A collection of tools used to obtain administrator-level access is called an exploit kit, which is used by cybercriminals to install malware and compromise system security.
Step-by-step explanation:
The correct answer is d) Backdoor.A backdoor is a collection of tools used to gain unauthorized access to a system at an administrator level. It is typically used by hackers or attackers to bypass security measures and gain control over a system. Backdoors can be created through various means, such as exploiting vulnerabilities in software or using specialized software tools.For example, a hacker may use a backdoor to install malicious software on a target system or to gain access to sensitive information. Once a backdoor is established, the attacker can control the system remotely and perform actions without the user's knowledge or consent.A collection of tools used to obtain administrator-level access is known as a exploit kit.
An exploit kit is a software toolkit that cybercriminals use to target vulnerabilities in systems and install malware, which can include gaining unauthorized access to system resources. These kits are designed to be easily used by individuals with varying levels of technical skill to exploit known vulnerabilities. They are typically not used for legitimate purposes and are associated with criminal activities like hacking and data breaches.