Podcast Beta
Questions and Answers
Match the following network types with their characteristics:
LAN = Spans a relatively large geographical area MAN = Consists of two or more LANs WAN = Spans a small geographical area
Match the following communication protocols with their characteristics:
Circuit Switching = Uses a dedicated communications path Packet Switching = Data is sent in a sequence of small chunks Frame Relay = Provides high data rates and low error rates ATM = Uses a dedicated logical channel
Match the following network technologies with their advantages:
Frame Relay = Compensates for errors with large overheads Packet Switching = Provides high data rates and low error rates Circuit Switching = Used for terminal to computer communications ATM = Used for computer to computer communications
Match the following network components with their functions:
Signup and view all the answers
Match the following communication protocols with their applications:
Signup and view all the answers
Match the following network types with their connections:
Signup and view all the answers
Match the following communication protocols with their characteristics:
Signup and view all the answers
Match the following network components with their characteristics:
Signup and view all the answers
Match the following communication protocols with their limitations:
Signup and view all the answers
Match the following network types with their geographical areas:
Signup and view all the answers
Study Notes
Data Communications, Data Networks, and the Internet
- The fundamental problem of communication is reproducing a message from one point to another.
Data Communications
- Contemporary trends:
- High and steady traffic growth
- Development of new services
- Advances in technology
- Emergence of high-speed LANs
- Corporate WAN needs
- Digital electronics
Communications Model
- Generates data
- Converts data into transmittable signals
- Carries data from source to destination
- Converts received signal into data
Communications Tasks
- Transmission system utilization
- Addressing
- Interfacing
- Routing
- Signal generation
- Synchronization
- Message formatting
- Exchange management
- Security
- Error detection and correction
- Network management
- Flow control
Data Communication System Tasks
- Transmission system utilization: efficient use of transmission facilities
- Addressing and routing: identifying intended destination and choosing a specific route
- Signal generation: required for communication
- Synchronization: determining when a signal begins and ends
- Exchange management: various requirements for communication between two parties
- Error detection and correction: required in circumstances where errors cannot be tolerated
- Flow control: preventing the source from overwhelming the destination
- Recovery: resuming activity at the point of interruption
- Message formatting: agreement on the form of data to be exchanged
- Security: providing some measure of security in a data communications system
- Network management: configuring the system, monitoring its status, reacting to failures and overloads, and planning for future growth
Data Communications Model
- Transmission Medium selection:
- Wired (e.g., fiber optic)
- Wireless (e.g., satellite and radio)
- Transmission costs are still high, hence interest in efficiency improvements
Networking
- Growth of computers is driving the need for interconnection
- Integration of voice, data, image, and video technologies
- Two broad categories of communications networks:
- Local Area Network (LAN)
- Metropolitan Area Network (MAN)
- Wide Area Network (WAN)
- WANs:
- Span a relatively large geographical area
- Consist of two or more LANs and MANs connected through public networks
- Implemented using:
- Circuit switching
- Packet switching
- Frame relay
- Asynchronous Transfer Mode (ATM)
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Quiz on data communications, data networks, and the internet, covering the fundamental concepts and principles, including the mathematical theory of communication.
