EMERGING TRENDS IN SOFTWARE ENGINEERING
CLOUD COMPUTING
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Data link layer
|
|
|
Network layer
|
|
|
Transport layer
|
|
|
Presentation layer
|
Detailed explanation-1: -More specifically, IPsec is a group of protocols that are used together to set up secure connections between devices at layer 3 of the OSI model (the network layer).
Detailed explanation-2: -IPSec is below the transport layer (TCP, UDP), and is thus transparent to applications. There is no need to change software on a user or server system when IPSec is implemented in the firewall or router. Even if IPSec is implemented in end systems, upper layer software, including applications is not affected.
Detailed explanation-3: -IPsec protocol headers are found in the IP header of a packet and define how the data in a packet is handled, including its routing and delivery across a network. IPsec adds several components to the IP header, including security information and one or more cryptographic algorithms.