Question 1 of 30
A company is implementing a site-to-site VPN to securely connect its headquarters to a remote branch office. The network administrator needs to ensure that the VPN configuration supports both data confidentiality and integrity. Which of the following configurations would best achieve this goal while also ensuring that the VPN can handle a high volume of traffic without significant latency?
Implementing IPsec with ESP (Encapsulating Security Payload) in tunnel mode, using AES-256 for encryption and SHA-256 for integrity checks.
Utilizing L2TP (Layer 2 Tunneling Protocol) without additional encryption, relying solely on the underlying network security.
Configuring a GRE (Generic Routing Encapsulation) tunnel with no encryption, allowing for faster data transfer but exposing the data to potential interception.
Setting up an SSL VPN that only encrypts the control plane, leaving the data plane unencrypted for performance reasons.

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