Question 66

Explanation

Correct Answer: D. IPsec is used for setting up secure channels between two devices in VPNs. Explanation: IPsec (Internet Protocol Security) is a set of protocols that provides security services for IP (Internet Protocol) networks. It is commonly used in VPNs (Virtual Private Networks) to establish secure connections between two devices over an insecure network, such as the internet. One of the main functions of IPsec is to provide data confidentiality, integrity, and authentication by encrypting the network traffic between the two devices. This helps to ensure that the data being transmitted over the network cannot be intercepted, modified, or read by unauthorized parties. IPsec also provides additional security features such as key management, replay protection, and anti-replay protection to prevent attacks such as eavesdropping, man-in-the-middle attacks, and packet tampering. Overall, IPsec is an essential tool for establishing secure channels between two devices in VPNs, ensuring that data transmitted over the internet or other insecure networks is kept confidential and secure.