Cisco Certified Support Technician (CCST) CybersecurityNetwork SecurityMedium
A company is implementing a security policy that requires all remote access to its internal network to use a secure, encrypted tunnel over the public internet. Which network technology is best suited to fulfill this requirement, providing both secure connectivity and data privacy?
- ADomain Name System (DNS)
- BVirtual Private Network (VPN)
- CNetwork Address Translation (NAT)
- DVirtual Local Area Network (VLAN)
Show answer & explanationAnswer & explanation
Correct answer: B. Virtual Private Network (VPN)
A Virtual Private Network (VPN) creates a secure, encrypted connection (a 'tunnel') over a less secure network, such as the internet. This allows remote users to securely access private network resources as if they were directly connected to the internal network, ensuring data privacy and integrity.
Why the other options are wrong
- A. DNS translates domain names to IP addresses; it is not a network security technology for secure remote access.
- C. NAT translates IP addresses, allowing multiple devices to share one public IP, but does not provide encryption or secure tunnels for remote access.
- D. VLANs segment a local network into broadcast domains, not for secure remote access over the internet.
Virtual Private Network (VPN)
A network technology that creates a secure, encrypted connection over a public network, allowing users to send and receive data as if their computing devices were directly connected to the private network.
- Provides secure remote access to internal networks.
- Encrypts data transmitted over the public internet.
- Creates a 'tunnel' for private communication.
Memory trick: VPN Provides Private Paths.