Question

As each layer of the OSI model adds its encapsulation header and/or footer, the ______ gets larger until it reaches the physical layer at which time it leaves the device for delivery.

Answer 1

Answer:

Message

Explanation:

• The Application layer creates a message. The Application layer passes the message to the Presentation layer.

• The Presentation layer encapsulates the message by adding information to it. Information is usually added only at the beginning of the message (called a header); however, some layers also add material at the end of the message (called a footer)

• The process of passing the message down and adding layer-specific information continues until the message reaches the Physical layer.
• At the Physical layer, the message is converted into electrical impulses that represent bits and is transmitted over the physical connection.  
• The receiving computer captures the bits from the physical connection and re-creates the message in the Physical layer.  
• The Physical layer converts the message from bits into a Data Link frame and sends the message up to the Data Link layer.
• The Data Link layer strips its information and sends the message up to the Network layer.
• This process of deencapsulation is performed until the message reaches the Application layer.
• When the message reaches the Application layer, the data in the message is sent to the intended software recipient.