VPN Flashcards
what does VPN enable
enables a device to communicate and exchange data across a network as if it was directly connected to a private network
why is VPN considered ‘ideal’
ideal for establishing a secure connection between private networks with remote users and remote sites
how can users use vpn
access data, files, database that are stored in their computer at work from home
what are the 2 different types of secure VPN
IPSec (internet protocol security protocol)
SSL (secure socket layer) / TLS (transport layer security)
what is IPSec
functions in both transport / tunnel mode
allows secure transmission of data over public IP networks
how does IPSec ensure secure data transmission
uses standard encryption to provide confidentiality
provides authentication using digital certificates
how does SSL/TLS provide secure data
encryption
what is trusted VPN
all the traffic on the VPN relies on the security of the provider’s network to protect the network
what are technologies used for Layer 2 VPN
asynchronous transfer mode circuits
frame relay circuits
transport of layer 2 frames over multiprotocol label switching
technologies used for layer 3 VPN
multiprotocol label switching with constrained distribution of routing information through border gateway protocol
what is hybrid VPN
combination of secure and trusted technologies or combination of two VPN technologies
what is site to site VPN
facilitates secure data interchange between sites
what is remote access VPN
facilitates teleworking for individual employees
benefits of using a VPN
easier communication
decreases operational costs compared to WAN
extends connections across numerous geographic sites
improves productivity of remote employees
improves security
offers flexibility to remote offices
offers global networking opportunities
reduces travel time
