CompTIA Cloud+ Practice Test

In which scenario is IPsec particularly useful?

1. For securing data on local networks

2. For creating a secure VPN over the Internet

3. For isolating cloud-based service applications

4. For analyzing performance metrics

The correct answer is: For creating a secure VPN over the Internet

IPsec is particularly valuable for creating a secure Virtual Private Network (VPN) over the Internet. This technology provides a framework for securing Internet Protocol communications by authenticating and encrypting each IP packet within a communication session. When establishing a VPN, IPsec ensures that the data transmitted between remote users and the corporate network remains confidential and protected from eavesdropping or tampering. Using IPsec for this purpose allows organizations to securely connect remote employees, branch offices, or partner sites to their main network, enabling safe data transfer across potentially insecure public networks like the Internet. The protocol supports various encryption algorithms and provides methods for ensuring data integrity and authentication, making it an essential component in the implementation of secure VPN solutions for organizations. On the other hand, while securing data on local networks or isolating cloud-based service applications are important considerations in network security, they do not specifically leverage the characteristics of IPsec in the same way that VPNs do. Similarly, analyzing performance metrics typically does not involve encryption or authentication, focusing instead on network management and monitoring rather than securing data transmissions.