In what way does a VPN provide secure data transmission?

In what way does a VPN provide secure data transmission?

• A. By compressing the data being transferred
• B. By creating an encrypted tunnel for the data
• C. By using a specific type of routing protocol
• D. By requiring multiple user authentications

Answer: (B)

A VPN, or Virtual Private Network, enhances secure data transmission primarily by creating an encrypted tunnel for the data. This means that when data is sent from one point to another through a VPN, it is encapsulated and encrypted before it leaves the user's device, and it remains encrypted until it reaches the final destination. The encryption ensures that even if the data is intercepted during transit, it is unreadable without the decryption key, thereby providing confidentiality and protection against eavesdropping. In addition to encryption, this mechanism provides integrity and authentication, as it ensures that the data has not been tampered with and that both parties involved in the communication are verified. This secure tunnel is essential for protecting sensitive information, especially when it traverses untrusted networks such as the internet. Other choices, while related to security and data transmission, do not directly address the fundamental aspect of how a VPN secures data. Compressing data might enhance transfer speed but does not inherently secure the transmission. Specific routing protocols can facilitate data transfer but do not guarantee encryption. User authentication adds a layer of security but does not define the mechanism of secure data transmission provided by a VPN.

A VPN, or Virtual Private Network, enhances secure data transmission primarily by creating an encrypted tunnel for the data. This means that when data is sent from one point to another through a VPN, it is encapsulated and encrypted before it leaves the user's device, and it remains encrypted until it reaches the final destination. The encryption ensures that even if the data is intercepted during transit, it is unreadable without the decryption key, thereby providing confidentiality and protection against eavesdropping.

In addition to encryption, this mechanism provides integrity and authentication, as it ensures that the data has not been tampered with and that both parties involved in the communication are verified. This secure tunnel is essential for protecting sensitive information, especially when it traverses untrusted networks such as the internet.

Other choices, while related to security and data transmission, do not directly address the fundamental aspect of how a VPN secures data. Compressing data might enhance transfer speed but does not inherently secure the transmission. Specific routing protocols can facilitate data transfer but do not guarantee encryption. User authentication adds a layer of security but does not define the mechanism of secure data transmission provided by a VPN.