Access to a(n) ____ is usually by invitation only.
A) ISDN
B) HSUPA
C) VPN
D) ICANN

Question

Quizplus · Accepted Answer

VPN (Virtual Private Network) is a private network that extends over a public network (such as the Internet) and allows users to securely access and share data, files or resources. Access to a VPN is usually by invitation only and requires authentication and authorization measures to ensure the confidentiality, integrity, and availability of information. ISDN (Integrated Services Digital Network) and HSUPA (High-Speed Uplink Packet Access) are technologies used for data transfer over telecommunications networks, while ICANN (Internet Corporation for Assigned Names and Numbers) is a non-profit organization that manages the assignment of domain names and IP addresses. However, none of these options relate to restricted access.

Access to A(n) ____ Is Usually by Invitation Only