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Transport (Layer 4)
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Name three layers of the OSI standard and describe their function?
The three layers of the OSI standard are application layer, transportation and Network layer. Network layer provides the electrical and mechanical interface to network medium, network layer handles routing and forwarding of data. The transport layer ensures data is successfully sent and received between two nodes..
What is the function of ISDN's data link layer?
Ensures that control and signaling information flows properly and is received
What happened with the headers when data packet moves from the lower to the upper layers?
As a data packet moves from the lower layers to the upper layers of the OSI model, headers added at each layer are stripped away. Each layer encapsulates data by adding its own header, which contains control information relevant to that layer's functionality. Upon reaching the upper layers, the headers of the lower layers are removed sequentially until only the original data is passed to the application layer. This process ensures that the application receives the data in a usable format while maintaining necessary control information during transmission.
How each osi model layer contribute to data arriving in the correct place without errors?
The OSI model consists of seven layers, each contributing to error-free data transmission. The Physical Layer ensures reliable transmission of raw bit streams over a physical medium. The Data Link Layer provides error detection and correction mechanisms, ensuring frames are delivered accurately. The Network Layer manages data routing, ensuring packets reach their intended destination, while the Transport Layer ensures complete data transfer and error recovery through flow control and retransmission. Together, these layers work cohesively to ensure that data arrives at the correct destination without errors.
How many layers can be classified?
Layers can be classified in various ways, but some common classifications include physical, network, data link, transport, session, presentation, and application layers in the OSI model, and application, middleware, and data layers in software development.
Is TCP a reliable protocol for data transmission?
Yes, TCP (Transmission Control Protocol) is a reliable protocol for data transmission. It ensures that data is delivered accurately and in the correct order by using error checking and retransmission of lost packets.
RMON2 is designed to capture data and collect statistics at the Data Link and Physical layers?
no thats rmon1, rmon2 is on the network and application layers
What is the purpose of 4 byte acknowlegement in tcp header?
The 4-byte acknowledgment field in a TCP header serves to confirm the receipt of data packets. It contains the next expected sequence number, indicating that all previous bytes have been successfully received. This mechanism ensures reliable data transmission by allowing the sender to know which data has been acknowledged and which may need to be retransmitted. It also helps in maintaining the correct order of data segments.
Proper order of the layers of the OSI model from the highest layer to the lowest layer?
application, presentation, session, transport, network, data link, physical
What proper order of the layers of the OSI model from the highest layer to the lowest layer?
application, presentation, session, transport, network, data link, physical
In which two layers of the osi model do NIC's belong?
NIC's can perform in the Data Link Layer of the OSI model. However, they can also perform services in the Physical Layer.(Network+ Guide to Networking Answer)Physical and Data Link layers
Layers of data abstraction in dbms?
select*from stludent
