Data and Computer Communications

The book contains: Introduction: Networks Network Types Internet History Standards and Administration Network Models: Protocol Layering TCP/ IP Protocol Suite The ISO Model. The Physical layer: Data and Signals Transmission impairment Data rate limits Performance Transmission media: Introduction Guided Media Unguided Media Switching: Introduction Circuit Switched Networks Packet switching. The Data Link Layer: Introduction Link layer addressing Error detection and Correction: Cyclic codes Checksum Forward error correction Data link control: DLC Services Data link layer protocols HDLC Point to Point Protocol Media Access control: Random Access Controlled Access Channelization Connecting devices and virtual LANs: Connecting Devices.