You are a system administrator configuring a server to enforce secure communication between client devices and the server. You want to ensure that data transmitted over the network is protected from eavesdropping and tampering. Which logical control technique would you implement?1.0 MarksVirtual private network (VPN)Intrusion detection system (IDS)Firewall rulesBiometric authenticationPublic key infrastructure (PKI)
Question
You are a system administrator configuring a server to enforce secure communication between client devices and the server. You want to ensure that data transmitted over the network is protected from eavesdropping and tampering. Which logical control technique would you implement?1.0 MarksVirtual private network (VPN)Intrusion detection system (IDS)Firewall rulesBiometric authenticationPublic key infrastructure (PKI)
Solution
The logical control technique you would implement to ensure that data transmitted over the network is protected from eavesdropping and tampering is Public Key Infrastructure (PKI).
Here's a step-by-step explanation:
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PKI involves the use of two cryptographic keys: a public key and a private key. The public key is available to any user that connects with the server, while the private key is kept secret on the server.
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When a client device wants to communicate with the server, it uses the server's public key to encrypt the data. This encrypted data can only be decrypted using the corresponding private key on the server.
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This ensures that even if the data is intercepted during transmission, it cannot be read or tampered with, as the eavesdropper would not have access to the private key needed to decrypt the data.
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Additionally, PKI also provides mechanisms for digital signatures which can be used to verify the integrity of the data, ensuring it has not been tampered with during transmission.
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Therefore, by implementing PKI, you can enforce secure communication between client devices and the server, protecting data from eavesdropping and tampering.
Note: While VPN, IDS, Firewall rules, and Biometric authentication are all important aspects of network security, they do not directly provide the encryption and integrity checks that PKI does.
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