Title: Module 2 Review Questions
Course: CNT 2001 Computer Networks & Communications > Section: Module 2 The OSI and TCP/IP Models

Q: Which layer of the OSI Model contains all the services or protocols that are needed by application software or the operating system to communicate on the network?
- Presentation
- Session
- Data Link
- Application
A: Application

Q: Which layer of the OSI Model is responsible for segmenting data and sequencing it for the rest of the OSI Model?
- Transport
- Physical
- Network
- Presentation
A: Transport

Q: Which layer of the OSI Model is concerned with reliably getting data from one computer to another?
- Presentation
- Session
- Transport
- Application
A: Transport

Q: A ___________________ is a unique address inside the computer that is associated with a specific protocol, service, or application.
- Logical address
- Port address
- Physical address
- Socket
A: Port address

Q: _______________ are used for end-to-end communications on a network.
- Logical addresses
- Port addresses
- Physical addresses
- Sockets
A: Logical addresses

Q: ________________ are used for node-to-node communications on a network.
- Logical addresses
- Port addresses
- Physical addresses
- Sockets
A: Physical addresses

Q: The encapsulation unit on the Presentation layer of the OSI Model is __________________.
- Packet
- Segment
- Frame
- Data
A: Data

Q: The encapsulation unit on the Transport layer of the OSI Model is __________________.
- Packet
- Segment
- Frame
- Data
A: Segment

Q: The encapsulation unit on the Network layer of the OSI Model is __________________.
- Packet
- Segment
- Frame
- Data
A: Packet

Q: The encapsulation unit on the Data Link layer of the OSI Model is __________________.
- Packet
- Segment
- Frame
- Data
A: Frame