Computer Science, asked by MDwahidsidd8017, 1 year ago

What protocols are used in each layer of osi model?

Answers

Answered by vishvrajsinghmpb0lh7
0
TCP ,UDP ,SPX, DCCP and SCTP
Answered by wwevikash
0
The following are the OSI protocols used in the seven layers of the OSI Model:

Layer 1, the Physical Layer: This layer deals with the hardware of networks such as cabling. The major protocols used by this layer include Bluetooth, PON, OTN, DSL, IEEE.802.11, IEEE.802.3, L431 and TIA 449.

Layer 2, the Data Link Layer: This layer receives data from the physical layer and compiles it into a transform form called framing or frame. The protocols are used by the Data Link Layer include: ARP, CSLIP, HDLC, IEEE.802.3, PPP, X-25, SLIP, ATM, SDLS and PLIP.

Layer 3, the Network Layer: This is the most important layer of the OSI model, which performs real time processing and transfers data from nodes to nodes. Routers and switches are the devices used for this layer. The network layer assists the following protocols: Internet Protocol (IPv4), Internet Protocol (IPv6), IPX, AppleTalk, ICMP, IPSec and IGMP.

Layer 4, the Transport Layer: The transport layer works on two determined communication modes: Connection oriented and connectionless. This layer transmits data from source to destination node. It uses the most important protocols of OSI protocol family, which are: Transmission Control Protocol (TCP), UDP, SPX, DCCP and SCTP.

Layer 5, the Session Layer: The session layer creates a session between the source and the destination nodes and terminates sessions on completion of the communication process. The protocols used are: PPTP, SAP, L2TP and NetBIOS.

Layer 6, the Presentation Layer: The functions of encryption and decryption are defined on this layer. It converts data formats into a format readable by the application layer. The following are the presentation layer protocols: XDR, TLS, SSL and MIME.

Layer 7, the Application Layer: This layer works at the user end to interact with user applications. QoS (quality of service), file transfer and email are the major popular services of the application layer. This layer uses following protocols: HTTP, SMTP, DHCP, FTP, Telnet, SNMP and SMPP.

I hope this helps.
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