Which statement best describes intranets?

Which statement best describes intranets?

• A. Public networks optimized for external users
• B. Networks that are isolated from the internet but not restricted
• C. Networks not accessible from outside the organization by default
• D. Global networks providing external access

Answer: (C)

Intranets are private networks used inside an organization, not exposed to the public internet by default. They host internal resources and services for employees, with access controlled through authentication, firewalls, and private addressing. This default isolation means resources aren’t reachable from outside the organization unless a secure connection or explicit authorization (like a VPN or remote access system) is provided. The other statements don’t fit because they describe public or externally accessible networks (or mix isolation with no restrictions). A public network optimized for external users isn’t private to the organization; describing something isolated from the internet but not restricted is inconsistent with the typical access controls of an intranet; and a global network with external access corresponds more to the internet or extranets, not a private internal network.

Intranets are private networks used inside an organization, not exposed to the public internet by default. They host internal resources and services for employees, with access controlled through authentication, firewalls, and private addressing. This default isolation means resources aren’t reachable from outside the organization unless a secure connection or explicit authorization (like a VPN or remote access system) is provided.

The other statements don’t fit because they describe public or externally accessible networks (or mix isolation with no restrictions). A public network optimized for external users isn’t private to the organization; describing something isolated from the internet but not restricted is inconsistent with the typical access controls of an intranet; and a global network with external access corresponds more to the internet or extranets, not a private internal network.