What is a virtual private network (VPN)?
Q: What is a virtual private network (VPN)?
A: A virtual private network, or VPN, is a set of technologies used to link computers together to create a private network. Data sent across the network is encrypted and routed through another network, making it look like the computers are directly connected.
Q: What does a VPN model guarantee?
A: The VPN model guarantees confidentiality, sender authentication, and message integrity. Confidentiality means that the carrier network will route the data but be unable to decrypt it. Sender authentication requires people to authenticate themselves in order to use the network. Message integrity ensures that messages transported across the network cannot be changed easily while they are in transport and any changes can be detected.
Q: How is a VPN used in a business context?
A: In a business context, VPNs are often used to connect different office locations or allow people working from outside of the company's physical location access its resources. It also allows users to access websites that may otherwise be blocked in their country of residence.
Q: What types of protocols are commonly used for VPNs?
A: Commonly used protocols for VPNs include OpenVPN, Cisco AnyConnect, and IPsec.
Q: How can using a VPN protect one's online activities on public WiFi?
A: Using a VPN helps make one's online activities on public WiFi anonymous and undecipherable by hiding the user and making it very hard for anyone to track them.
Q: What type of connection do corporate offices use when connecting with branch offices located far away?
A: Corporate offices typically use site-to-site Virtual Private Network (VPN) connections when connecting with branch offices located far away since direct connections between distant locations would not be practical or feasible.
