Nt1310 Unit 7
Name: Date: Northampton Community College
CISC 231 – Data Communications and LANs (CCNA 1) STUDY GUIDE FOR CHAPTER 2
1. What is the purpose of a network protocol?
A network protocol defines rules and conventions for communication between network devices. Protocols for computer networking all generally use packet switching techniques to send and receive messages in the form of packets.
2. Define the role of an intermediary device in the network.
Communication to run smoothly across the network there are devices that place intermediary roles in networking. These intermediary devices provide connectivity and work behind the scenes to ensure that data flows across the network. These devices connect the individual hosts (end devices) to the network and can connect multiple individual networks to form an internetwork. …show more content…
3. Define the role of an end device in the network.
The network devices that people are most familiar with are called end devices. These devices form the interface between the human network and the underlying communication network. They usually refer to a piece of equipment that is either the source or the destination of a message on a network.
4. What is encapsulation?
Encapsulation is an attribute of object design. It means that all of the object's data is contained and hidden in the object and access to it restricted to members of that class. A procedure is a type of encapsulation because it combines a series of computer instructions. Likewise, a complex data type, such as a record or class, relies on encapsulation.
5. What are the seven layers of the OSI model (in order)? What is the role of each layer?
7. Application
6. Presentation
5. Session
4. Transport
3.
CISC 231 – Data Communications and LANs (CCNA 1) STUDY GUIDE FOR CHAPTER 2
1. What is the purpose of a network protocol?
A network protocol defines rules and conventions for communication between network devices. Protocols for computer networking all generally use packet switching techniques to send and receive messages in the form of packets.
2. Define the role of an intermediary device in the network.
Communication to run smoothly across the network there are devices that place intermediary roles in networking. These intermediary devices provide connectivity and work behind the scenes to ensure that data flows across the network. These devices connect the individual hosts (end devices) to the network and can connect multiple individual networks to form an internetwork. …show more content…
3. Define the role of an end device in the network.
The network devices that people are most familiar with are called end devices. These devices form the interface between the human network and the underlying communication network. They usually refer to a piece of equipment that is either the source or the destination of a message on a network.
4. What is encapsulation?
Encapsulation is an attribute of object design. It means that all of the object's data is contained and hidden in the object and access to it restricted to members of that class. A procedure is a type of encapsulation because it combines a series of computer instructions. Likewise, a complex data type, such as a record or class, relies on encapsulation.
5. What are the seven layers of the OSI model (in order)? What is the role of each layer?
7. Application
6. Presentation
5. Session
4. Transport
3.