OSI Model. אושר רוצה לשלוח לתומר הודעה במסנג'ר תומר אושר.

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Presentation transcript:

OSI Model

אושר רוצה לשלוח לתומר הודעה במסנג'ר תומר אושר

Application Layer 7: The Application Layer The application layer is the OSI layer that is closest to the user It provides network services to the user's applications. It differs from the other layers in that it does not provide services to any other OSI layer, but rather, only to applications outside the OSI model.

Presentation Layer 6: The Presentation Layer The presentation layer ensures that the information that the application layer of one system sends out is readable by the application layer of another system. Responsible for compression and encryption מה נשמע תומר איך הייתה בחינת פרק 2? גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()? Encryption\ Data Format Change

Session Layer 5: The Session Layer the session layer establishes, manages, and terminates sessions between two communicating hosts. session עם תומר session עם מוטי session עם משה (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) מה נשמע תומר איך הייתה בחינת פרק 2?

שיחה עם תומר Transport Layer 4: The Transport Layer The transport layer segments data from the sending host's system. Reassembles the data into a data stream on the receiving host's system. Provides Reliability (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) 1234 Segmentation מה נשמעתומר איךהייתה בחינתפרק 2?

הייתה בחינת 3 Network Layer 3: The Network Layer provides connectivity and path selection between two host systems that may be located on geographically separated networks To IPFrom IP Send to internet IP uses in WAN traffic

Send to LAN Data Link Layer 2: The Data Link Layer The data link layer provides reliable transmit of data across a physical link. The data link layer is concerned with physical (as opposed to logical). 11-2D F1-B2-33C2-B A5-67 To Mac From Mac Frame (packet) To IPFrom IP מה נשמע 1

Send to Media Physical Layer 1: The Physical Layer The physical layer defines the electrical, mechanical, procedural, and functional specifications for activating, maintaining, and deactivating the physical link between end systems F1-B2-33 C2-B1-44 To Mac From Mac To IPFrom IP מה נשמע 1

Send to NIC Physical מה נשמע To IP F1-B2-33C2-B1-44 To Mac From Mac F1-B From IP

Data Link מה נשמע To IPFrom IP F1-B2-33 C2-B1-44 To Mac From Mac F1-B

מה נשמע 1 Network To IPFrom IP

Transport (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) Organizing segment מה נשמע תומר איך הייתה בחינת פרק 2? מה נשמע תומר איך הייתה בחינת פרק 2?

Session session עם אושר session עם אכרם session עם רמי (גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()?) מה נשמע תומר איך הייתה בחינת פרק 2?

Presentation decryption\ Data Format Change גכ כג$כ גורצ ח*ח בה^יב ב#י#ת פ^% ()? מה נשמע תומר איך הייתה בחינת פרק 2?

Application

תומר מחזיר תשובה לאושר במסנג'ר תומר אושר Layers 7-4 Layer 2 Layer 3 Layer 1 Layer 2 Layer 1