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Which connection protocol is suitable for cloud-based VPN access while ensuring data integrity and confidentiality?

  1. AES

  2. SOC-3

  3. IPsec

  4. RC5

The correct answer is: IPsec

IPsec is the correct choice for cloud-based VPN access when ensuring both data integrity and confidentiality. It is a comprehensive suite of protocols used to secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet within a communication session. This is particularly important for cloud environments, where sensitive information is often transmitted over public networks. IPsec provides various security features, including integrity checks to verify that data has not been altered in transit, and encryption to ensure that even if data is intercepted, it cannot be read by unauthorized users. While AES is a robust encryption standard used in many cryptographic protocols, including IPsec, it does not operate as a standalone protocol for establishing VPN connections. SOC-3, on the other hand, relates to audit reports for service organizations and is not a connection protocol, and RC5 is a symmetric-key block cipher used for encryption but does not provide the complete set of functionalities required for a secure VPN connection. Therefore, IPsec stands out as the protocol specifically designed to secure communications across a VPN in the cloud.