A company is setting up an IPsec VPN to secure communication between their main office and a remote office. The network administrator needs to ensure the confidentiality of data as it traverses the public network. Which component specifically helps achieve this privacy requirement?
Encapsulating Security Payload (ESP) is used within IPsec to provide confidentiality, along with integrity and authentication of the data. It encrypts the payload data and optional header to ensure that sensitive information remains confidential when sent over an insecure network. The other options do not specifically address data confidentiality. Authentication Header (AH) provides authenticity and integrity but does not encrypt data, thus does not guarantee confidentiality of the communication. Full-duplex transmission relates to the direction data can travel in a network and does not pertain to data confidentiality or encryption.
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What is Encapsulating Security Payload (ESP)?
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How does ESP ensure data confidentiality?
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What is the role of Authentication Header (AH) if it doesn't ensure confidentiality?