Understanding the OSI Model Layers

What is the primary function of the Physical Layer in the OSI model?

• To provide error detection and correction

• To transmit raw bit streams over a physical medium

• To establish, manage, and terminate sessions

• To encrypt and decrypt data

Which layer of the OSI model is responsible for routing packets between devices on different networks?

• Data Link Layer

• Network Layer

• Transport Layer

• Application Layer

What is the main function of the Data Link Layer?

• To provide node-to-node data transfer and error detection

• To ensure reliable data transfer

• To manage data encryption

• To handle end-user applications

Which OSI layer is responsible for flow control and error recovery?

• Physical Layer

• Presentation Layer

• Transport Layer

• Session Layer

What is the primary role of the Presentation Layer in the OSI model?

• To format and encrypt data

• To manage sessions

• To route data packets

• To provide physical connections

Which layer of the OSI model is responsible for establishing, managing, and terminating connections between applications?

• Application Layer

• Session Layer

• Network Layer

• Data Link Layer

What is the function of the Application Layer in the OSI model?

• To provide a user interface and support for services like email and file transfer

• To manage data encryption

• To ensure data is sent in the correct sequence

• To handle error detection

Which layer of the OSI model is responsible for translating data formats between a network service and an application?

• Transport Layer

• Presentation Layer

• Network Layer

• Data Link Layer

What is the primary function of the Network Layer?

• To provide reliable data transfer

• To determine the best path for data through the network

• To encrypt data

• To manage user sessions

Which OSI layer is responsible for segmenting and reassembling data?

• Physical Layer

• Data Link Layer

• Transport Layer

• Application Layer