66. What is a digital certificate?
a) An electronic document that verifies the identity of a person or organization online
b) A type of network topology
c) A device that connects multiple devices in a LAN
d) A tool used to test network connectivity
67. What is Two-Factor Authentication (2FA)?
a) A security mechanism that requires users to provide two forms of identification to access a system or application
b) A type of network topology
c) A device that connects multiple devices in a LAN
d) A tool used to test network connectivity
68. What is cloud computing?
a) A type of network topology
b) A network security system that monitors and controls incoming and outgoing network traffic
c) A technology that allows users to access shared computing resources over a network, usually the internet
d) A device that connects multiple devices in a LAN
69. What is a Content Delivery Network (CDN)?
a) A technology that allows users to access shared computing resources over a network, usually the internet
b) A type of network topology
c) A network security system that monitors and controls incoming and outgoing network traffic
d) A system of distributed servers that delivers web content to users based on their geographic location
70. What is a Virtual Machine (VM)?
a) A type of network topology
b) A technology that creates a software-based representation of a physical computer that can run multiple operating systems and applications
c) A network security system that monitors and controls incoming and outgoing network traffic
d) A device that connects multiple devices in a LAN
