How can an operating system be hardened in accordance to the principle of least privilege? Remove unnecessary software. Remove unneeded services. Implement account auditing. Restrict account permissions.

What’s an example of hardening? Implement security level measures of the operating system to protect the services which run itMake the systems more difficult to use: the more complex a system is to use, the more difficult it becomes to attack the systemEducate users to choose difficult passwords to guess

Discuss the importance of user permissions in operating systems for ensuring systemsecurity. Explain the concepts of user accounts, access control lists (ACLs), andprivileges. Provide examples of how these mechanisms are implemented in popularoperating systems.

What mechanisms do modern operating systems implement to enhance security and protect against malicious attacks, and how do these mechanisms function?Group of answer choices• (a) Modern operating systems use fixed memory allocation and static user permissions to enhance security by simplifying system management.• (d) Modern operating systems use legacy security models that emphasize physical isolation and hardware-based protection.• (c) Modern operating systems rely solely on antivirus software and firewalls to protect against malicious attacks, focusing on external threat prevention.• (b) Modern operating systems enhance security through mechanisms such as address space layout randomization (ASLR), data execution prevention (DEP), and user access controls. ASLR randomizes memory addresses to prevent predictable attacks, DEP prevents execution of code in non-executable memory regions, and access controls manage user permissions.• (e) Modern operating systems enhance security by integrating biometric authentication and eliminating traditional password-based access controls.

Which of the following statements accurately describe OS hardening tasks? Select three answers. 1 pointSome OS hardening tasks are performed at regular intervals, while others are performed only once.OS hardening is a set of procedures that maintain and improve OS security. Multi-factor authentication is a security measure requiring users to change passwords every month.When disposing of software, it is a best practice to delete any unused applications.6.Question 6

What are examples of physical security hardening? Select all that apply.1 pointInstalling security camerasHiring security guardsRemoving or disabling unused applicationsReducing access permissions across devices