Network security is the protection of the underlying networking infrastructure(1) access, misuse, or theft. It involves creating a
secure infrastructure for device and applications to work in a (2) manner.
Network security combines multiple defenses at the edge and in the network. Each network security layer implements (3) controls.Authorized users gain access to network resources. A (4) is a network device that monitors incoming and outgoing network traffic and decides whether block specific traffic based on a defined set of security rules. A virtual (5) encrypts the connection from an endpoint to a network,often over the internet.remote-access VPN uses IPsec or Secure Sockets Layer to authenticate the between device and network.
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