Palo Alto Networks (PANW) Certified Network Security Administrator (PCNSA) Practice Exam

What would be a reason to use a VPN in a network security environment?

1. To simplify routing

2. To prevent unauthorized access

3. To create redundancy

4. To enhance bandwidth

The correct answer is: To prevent unauthorized access

Using a VPN (Virtual Private Network) in a network security environment is primarily focused on preventing unauthorized access. A VPN creates a secure and encrypted tunnel for data transmitted across public or shared networks, effectively shielding the data from interception by unauthorized users. This encryption secures communications between endpoints, such as remote users and corporate networks, ensuring that sensitive information remains confidential and protected from potential eavesdroppers. In addition to securing data transit, a VPN also provides a means to authenticate users, ensuring that only authorized individuals can access certain network resources. This layer of security is critical in today’s environment where remote work and connectivity to corporate resources is commonplace. The use of a VPN enhances the organization’s overall security posture by reducing the risk of data breaches and unauthorized access. By prioritizing protective measures in a network environment, a VPN serves as a fundamental tool for safeguarding sensitive information and maintaining the confidentiality of communications, aligning precisely with the reason of preventing unauthorized access.