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HEADERS: It is a part of an information structure that precedes and identifies the information that follows,such as block of bytes in communication.
TRAILERS:It is an information typically occupying several bytes ,at the tail end of a block of transmitted data which may contain a checksum or other error-checking data useful for confirming the accuracy and status of transmission.
What else can I help you with?
What is the difference between System Network Architecture and Open System Interconnections layers?
osi add header at each layer but SNA add header at bottom layers
What is decapsulation in computers?
Decapsulation is the process of stripping header & trailer sections in which Information is packed for transportation of data.It is the process of removing encapsulation data at different layers.
What protocols at other layers of the OSI model does ping use?
Layer 3 of the OSI model. An ICMP header follows the IP header of the IP packet.
How do all the layers in network communicate with each other?
They are able to talk through a connection. That connection needs to be present otherwise the communication will not happen.
Which layer in the Internet model are the network support layer?
Physical, Data link and Network layers make the Network Support layers.
Which OSI layer is responsible for adding a header that includes routing information?
The routing process occurs in the 3rd OSI layer (network layer) routing protocols use network address (IP address in TCP/IP) to chose the correct path to the destination. ps: You can also have routing protocols on other layers sometimes (application layer in p2p routing) but this is something completely different.
What is the process of taking data from the layer above adding a header with addressing information in it called?
The process of taking data from the layer above and adding a header with addressing information is called "encapsulation." In networking, this occurs as data is passed down through the OSI model layers, where each layer adds its own header (or trailer) to the data unit, creating a new protocol data unit (PDU) for that layer. This encapsulation ensures that the data is properly routed and processed by the appropriate protocols at each layer.
What is the difference between network layer and network layer protocol?
A network layer refers to one of the actual 7 layers. The network layer protocol is actually the system it uses, possibly the order that the layers are done by?
How many layers of embryonic tissue are present in the pig?
There are three layers of embryonic tissue present in the pig. These layers are called the ectoderm, mesoderm and the endoderm.
Describe the layers of Internet model including their responsibilities Which layers are the network support layers?
John Patterson knows
Which layer is the network support layer?
Physical, Data link and Network layers make the Network Support layers.
Which layers should support QoS in a hierarchical network?
the access, distribution, and core layers
