What is the primary purpose of data encapsulation in network protocols? To convert data into an analog signal for transmission To encrypt data for secure transmission To compress data for faster transmission To add additional data headers for routing and delivery

The primary purpose of data encapsulation in network protocols is to add additional data headers for routing and delivery. Data encapsulation involves wrapping data from a higher layer protocol with a header from a lower layer protocol. This process is repeated as data moves down the stack, with each layer adding its own header. The headers contain information necessary for the data to be transmitted and delivered to the correct destination, such as source and destination addresses, error-checking codes, and sequencing information.