COMPUTER NETWORKS AND COMMUNICATIONS
NETWORK SECURITY AND CYBERSECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hashing
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Encryption
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Key exchange
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Firewall
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Detailed explanation-1: -Authentication and access control techniques are used to provide confidentiality. Data encryption is often used to provide Integrity.
Detailed explanation-2: -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-3: -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-4: -IPSec enables the following Cisco IOS VPN features: Data confidentiality-The IPSec sender can encrypt packets before transmitting them across a network.