COMPUTER NETWORKING

NETWORK SECURITY

INTRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following security technique provides the highest “confidentiality service”?
A
Hashing
B
Encryption
C
Key exchange
D
Firewall
Explanation: 

Detailed explanation-1: -What is the most secure VPN protocol? Many VPN experts recommend OpenVPN as the most secure protocol. It uses 256-bit encryption as a default but also offers other ciphers such as 3DES (triple data encryption standard), Blowfish, CAST-128, and AES (Advanced Encryption Standard).

Detailed explanation-2: -A VPN uses tunneling protocols to encrypt data at the sending end and decrypts it at the receiving end. The originating and receiving network addresses are also encrypted to provide better security for online activities. VPN apps are often used to protect data transmissions on mobile devices.

Detailed explanation-3: -There are two types of VPN encryption: symmetric and asymmetric. Symmetric encryption uses a single key shared between two parties, while asymmetric encryption has public and private keys.

There is 1 question to complete.