Data communication and networking notes outline and the notes in pdf highlighted here. Data communication and networking unit is examinable by Kenya national examination council KNEC and is mainly taught in various courses highlighted below;
- Diploma in Information communication technology
DATA COMMUNICATION AND NETWORKING UNIT; Data communications are the exchange of data between two devices via some form of transmission medium such as a wire cable. For data communications to occur, the communicating devices must be part of a communication system made up of a combination of hardware (physical equipment) and software (programs). All these and networking are discussed fully in this unit.
DATA COMMUNICATION AND NETWORKING TOPICS COVERED
Overview This topic trainees will learn;
- Classification of Computer Networks
- Geographical Span
- Inter-Connectivity
- Administration
- Network Architecture
- Network Applications
Types of computer networks This topic trainees will learn;
- Personal Area Network
- Local Area Network
- Metropolitan Area Network
- Wide Area Network
- Internetwork
Network LAN technologies This topic trainees will learn;
- Ethernet
- Fast-Ethernet
- Giga-Ethernet
- Virtual LAN
Computer network topologies This topic trainees will learn;
- Point-to-Point
- Bus Topology
- Star Topology
- Ring Topology
- Mesh Topology
- Daisy Chain
- Hybrid Topology
Computer network model This topic trainees will learn;
- Layered Tasks
- OSI Model
- Internet Model
Computer network security This topic trainees will learn;
- Secret Key Encryption
- Public Key Encryption
- Message Digest
Physical layer introduction This topic trainees will learn;
- Signals
- Transmission Impairment
- Transmission Media
- Channel Capacity
- Multiplexing
- Switching
Digital transmission This topic trainees will learn;
- Digital-to-Digital Conversion
- Line Coding
- Unipolar Encoding
- Polar Encoding
- Bipolar Encoding
- Block Coding
- Analog-to-Digital Conversion
- Sampling
- Quantization
- Encoding
- Transmission Modes
Analog transmission This topic trainees will learn;
- Digital-to-Analog Conversion
- Analog-to-Analog Conversion
Transmission media This topic trainees will learn;
- Magnetic Media
- Twisted Pair Cable
- Coaxial Cable
- Power Lines
- Fiber Optics
Wireless transmission This topic trainees will learn;
- Radio Transmission
- Microwave Transmission
- Infrared Transmission
- Light Transmission
Multiplexing This topic trainees will learn;
- Frequency Division Multiplexing
- Time Division Multiplexing
- Wavelength Division Multiplexing
- Code Division Multiplexing
Switching This topic trainees will learn; Circuit switching, message switching and packet switching.
Error detection and correction This topic trainees will learn;
- Types of Errors
- Error Detection
- Error Correction
Data link control and protocols This topic trainees will learn;
Flow Control, Error Control
Network routing This topic trainees will learn;
- Unicast routing
- Broadcast routing
- Multicast Routing
- Any cast Routing
- Unicast Routing Protocols
- Multicast Routing Protocols
- Routing Algorithms
Network layer protocols This topic trainees will learn;
- Address Resolution Protocol (ARP)
- Internet Control Message Protocol (ICMP)
- Internet Protocol Version 4 (IPv4)
- Internet Protocol Version 6 (IPv6)
Transmission control protocol This topic trainees will learn;
- Features
- Header
- Addressing
- Connection Management
- Bandwidth Management
- Error Control and Flow Control
- Multiplexing
- Congestion Control
- Timer Management
- Crash Recovery
User datagram protocols This topic trainees will learn;
- Requirement of UDP
- Features
- UDP Header
- UDP application
Application protocols This topic trainees will learn;
- Domain Name System
- Simple Mail Transfer Protocol
- File Transfer Protocol
- Post Office Protocol (POP)
- Hyper Text Transfer Protocol (HTTP)
DATA COMMUNICATION AND NETWORKING KNEC PAST PAPERS
DATA COMMUNICATION AND NETWORKING NOTES (PDF)For short simplified and comprehensive notes examined by KNEC contact your business department or DATACOM lecturer
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