In a peer-to-peer network, two or more PCs can access shared files and printers without the need for a second server computer or server software.
An interconnected group of programs called a firewall blocks outsiders from accessing information on a private network. Make sure the firewall on the operating system is activated, or install free firewall software from the internet. Make that any home systems used by employees who work from home are firewall-protected.An intranet is a private network that is part of an organization and is used for secure employee sharing of company data and computing resources.
An information security risk known as a denial-of-service (DoS) attack arises when an attacker prevents authorized users from accessing computer systems, networks, services, or other information technology (IT) resources.
Therefore the correct answer is an internet.
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