2.2.6 OSI Model and Data Encapsulation
Which of the following tasks is associated with the Session layer?
Connection establishment
Match each networking function or device on the left with its associated OSI model layer on the right.
Application layer HTTP Presentation layer Encapsulation Session layer Session ID number Transport layer Port number Network layer Router Data Link layer Switch Physical layer Modem
Which of the following functions are performed by the OSI Transport layer? (Select three.)
Reliable message delivery End-to-end flow control Data segmentation and reassembly
What is the basic purpose of the OSI Physical layer?
Coordinate rules for sending and receiving electrical signals.
In the OSI model, which of the following functions are performed at the Presentation layer? (Select two.)
Data encryption and compression Data format specifications
In the OSI model, which of the following functions are performed at the Application layer? (Select two.)
Integration of network functionality into the host operating system. Enabling of communication between network clients and services.
Which of the following are included as part of the Data Link layer specifications? (Select two)
Physical network device identification Data transmission between hosts
Match each layer of the TCP/IP model on the left with the corresponding layer of the OSI model on the right. Each option on the left can be used more than once.
Presentation layer: Application Data link layer: Network Application Layer: Application Session layer: Application Network layer: Internetwork Transport layer: Transport
In the OSI model, what is the primary function of the Network layer?
Route messages between networks.
During TCP/IP communication between two network hosts, information is encapsulated on the sending host and decapsulated on the receiving host using the OSI model. Match the information format on the left with the appropriate layer of the OSI model on the right.
Transport layer Segments Network layer Packets Data Link layer Frames Physical layer Bits
