The A refers to the certification on theâ¦ Airframe structure, to work on the wings, structure of the Frame or assemblies such as air vents for repairs. The P stands for Power Plant, The Certification repair for an Engine of a craft which also includes the hydraulic system.
Protocols. There are a number of VPN protocols in use that secure the transport of data traffic over a public network infrastructure. Each protocol varies slightly in the way that data is kept secure. IP security (IPSec) is used to secure communications over the Internet. IPSec traffic can use either transport mode or tunneling to encrypt data traffic in a VPN.
1 A Virtual Private Cloud (VPC): A logically isolated virtual network in the AWS cloud. You define a VPCâs IP address space from a range you select. 2  Subnet: A segment of a VPCâs IP address range where you can place groups of isolated resources.  Internet Gateway: The Amazon VPC side of a connection to the public Internet.