Q1: For each layer of the OSI model in terms of, list its responsibilities and s

ID: 3722631 • Letter: Q

Question

Q1: For each layer of the OSI model in terms of, list its responsibilities and some common protocols. (70 points)

Layers

Application

--------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------

Session

Transport

Network

Data link

Physical

Layers

Functions and common protocols

Application

Session

Transport

Explanation / Answer

APPLICATION LAYER:

function : specifies the shared communication protocols and interface methods used by hosts in a communications network . The main protocols used are http ,https dns , ftp , tftp, SMTP, TELNET , BOOTP etc.

SESSION LAYER

FUNCTION: this layer main respnsibility is to control dialog( either full duplex or half-duplex operation ) and manage sessions between end-user application processes.It also provides synchronization points in the stream of exchanged messages.

PROTOCOLS:

PPTP, Point-to-Point Tunneling Protocol

RPC, Remote Procedure Call Protocol

L2F, Layer 2 Forwarding Protocol

L2TP, Layer 2 Tunneling Protocol

PAP, Password Authentication Protocol

TRANSPORT LAYER: functions

it manages flow control , error control in WAN. other tasks includes segmentation and congestion policies.

protocols:

TCP Transmission control protocol

Datagram Congestion Control Protocol (DCCP)

Stream Control Transmission Protocol (SCTP).

NETWORK LAYER:

major functions :

IP addressing , fragmentation , Traffic shaping and manages the routing algorithms.

major protocols: IP, IPX.

DATA LINK LAYER:

major functions :{ flow control , error control} (within LAN), access control and framing .

major protocol : Ethernet protocols.

PHYSICAL LAYER:

this layer deals with the physical mainly the electrical properties of the cable .

major protocol : ethernet

Navigate

Q1: For a perfectly competitive firm, marginal revenue product is equal to price

Q1: For each scenario write the letter for what statistical method would be used

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.

Q1: For each layer of the OSI model in terms of, list its responsibilities and s

Question

Explanation / Answer

Related Questions

Navigate