Which of the following is not an essential element of a VPN link? The Correct Answer is D. Explanation: Encryption is not necessary for the connection to be considered a VPN, but it is recommended for the protection of that data.
A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or individual users with secure access to their organization's network.
confidentiality. Which of the following networking devices or services prevents the use of IPsec in most cases? firewalls, routers, and switches. A group of salesmen in your organization would like to access your private network through the internet while they are traveling.
The IPsec standards define two distinct modes of IPsec operation, transport mode and tunnel mode. The modes do not affect the encoding of packets. The packets are protected by AH, ESP, or both in each mode.