Data Communication And Computer Networks: A Comprehensive Guide by Prakash C Gupta PDF Download

Data communication and computer networks are two interrelated fields that deal with the transmission, processing, and sharing of data and information among various devices and systems. Data communication refers to the exchange of data between two or more entities using a common medium, such as wires, cables, radio waves, or optical fibers. Computer networks refer to the interconnection of multiple devices, such as computers, servers, routers, switches, and hubs, using data communication techniques and protocols.

Data communication and computer networks are essential for various applications and domains, such as telecommunication, internet, e-commerce, e-learning, e-governance, e-health, multimedia, cloud computing, and cyber security. They enable the users to access, store, manipulate, and share data and information across different locations and platforms.

One of the most comprehensive and accessible books on data communication and computer networks is Data Communication And Computer Networks by Prakash C Gupta. This book is written by an experienced author and professor who has taught this subject for many years. The book covers all the topics related to data communication and computer networks in an easy-to-read style. The book also provides standard protocols, examples, diagrams, tables, exercises, acronyms, and references to help the students and professionals understand the concepts and applications of data communication and computer networks.

What You Will Learn from Data Communication And Computer Networks by Prakash C Gupta PDF

Data Communication And Computer Networks by Prakash C Gupta PDF is divided into 17 chapters that cover the following topics:

Chapter 1: Data Communication Concepts and Terminology. This chapter introduces the basic concepts and terminology of data communication, such as data types, transmission modes, transmission media, modulation techniques, multiplexing techniques, switching techniques, encoding schemes, error detection and correction methods, compression methods, encryption methods, and data communication standards.
Chapter 2: Transmission Media. This chapter discusses the various types of transmission media used for data communication, such as twisted pair cables, coaxial cables, optical fibers, wireless media (radio waves, microwaves, infrared waves), satellite communication systems (geostationary satellites, low earth orbit satellites), cellular communication systems (GSM networks), mobile communication systems (3G networks), broadband wireless access systems (WiMAX networks), and power line communication systems.
Chapter 3: Telephone Network. This chapter explains the structure and functioning of the telephone network (PSTN), which is one of the oldest and most widely used data communication networks. The chapter covers topics such as telephone network components (local loops, trunks, switches), telephone network hierarchy (local exchanges,
tandem exchanges,
toll exchanges),
telephone network signaling (dial tone,
dialing,
ringing),
telephone network services (local calls,
long distance calls,
international calls),
telephone network evolution (analog systems,
digital systems),
and telephone network standards (EIA/TIA standards,
ITU-T standards).
Chapter 4: Data Line Devices. This chapter describes the various devices that are used to connect data sources and destinations to the transmission media or to the telephone network. The chapter covers topics such as modems (analog modems,
digital modems),
multiplexers (frequency division multiplexers,
time division multiplexers),
concentrators (statistical multiplexers),
front-end processors (communication controllers),
and line drivers.
Chapter 5: Error Control. This chapter deals with the methods and techniques that are used to detect and correct errors that may occur during data transmission due to noise or interference. The chapter covers topics such as error detection methods (parity check,
checksum,
cyclic redundancy check),
error correction methods (forward error correction,
backward error correction),
automatic repeat request protocols (stop-and-wait ARQ,
go-back-N ARQ,
selective repeat ARQ),
and sliding window protocols.
Chapter 6: Network Architecture. This chapter introduces the concept of network architecture or network model
Chapter 7: The Physical Layer. This chapter discusses the functions and protocols of the physical layer, which is the lowest layer of the network architecture that deals with the transmission of raw bits over the transmission media. The chapter covers topics such as physical layer functions (bit synchronization,
bit encoding,
bit transmission),
physical layer standards (RS-232C standard,
EIA/TIA-449 standard,
EIA/TIA-530 standard),
and physical layer devices (repeaters,
hubs).
Chapter 8: The Data Link Layer. This chapter discusses the functions and protocols of the data link layer, which is the second layer of the network architecture that deals with the transmission of frames over a single link. The chapter covers topics such as data link layer functions (framing,
flow control,
error control,
medium access control),
data link layer standards (HDLC standard,
PPP standard),
and data link layer devices (bridges,
layer 2 switches).
Chapter 9: Data Link Protocols. This chapter describes some of the most common and widely used data link protocols that are based on different techniques and principles. The chapter covers topics such as synchronous protocols (BISYNC protocol,
SDLC protocol),
asynchronous protocols (ASYNC protocol),
character-oriented protocols (XMODEM protocol,
YMODEM protocol,
ZMODEM protocol),
and bit-oriented protocols (Kermit protocol).
Chapter 10: Local Area Networks. This chapter introduces the concept and characteristics of local area networks (LANs), which are networks that connect devices within a small geographical area, such as a building or a campus. The chapter covers topics such as LAN topologies (bus topology,
ring topology,
star topology),
LAN technologies (Ethernet technology,
token ring technology,
token bus technology),
and LAN standards (IEEE 802 standards).
Chapter 11: IEEE 802.3 Ethernets. This chapter discusses the details and features of IEEE 802.3 Ethernets, which are the most popular and widely used LAN technology based on the bus topology and the CSMA/CD protocol. The chapter covers topics such as Ethernet frame format, Ethernet addressing scheme, Ethernet operation modes (half-duplex mode, full-duplex mode), Ethernet types (10Base-T Ethernet, 100Base-TX Ethernet, 1000Base-T Ethernet), and Ethernet devices (Ethernet NICs, Ethernet hubs, Ethernet switches).
Chapter 12: Token Passing Local Area Networks. This chapter discusses the details and features of token passing local area networks, which are LAN technologies based on the ring topology and the token passing protocol. The chapter covers topics such as token ring frame format, token ring addressing scheme, token ring operation modes (monitor mode, non-monitor mode), token ring types (4 Mbps token ring, 16 Mbps token ring), and token ring devices (token ring NICs, token ring MAUs, token ring bridges).
Chapter 13: Wireless Local Area Networks. This chapter discusses the details and features of wireless local area networks (WLANs), which are LAN technologies that use wireless media instead of wires or cables to connect devices. The chapter covers topics such as WLAN advantages and disadvantages, WLAN components (wireless NICs, wireless access points, wireless routers), WLAN standards (IEEE 802.11 standards), WLAN security issues and solutions (WEP encryption, WPA encryption, WPA2 encryption), and WLAN applications.
Chapter 14: Bridges and Layer 2 Switches. This chapter discusses the details and features of bridges and layer 2 switches, which are data link layer devices that are used to interconnect LAN segments or LANs. The chapter covers topics such as bridge functions and types (transparent bridges, source routing bridges), bridge operation modes (learning mode, filtering mode, forwarding mode), bridge advantages and disadvantages, layer 2 switch functions and types (store-and-forward switches, cut-through switches), layer 2 switch operation modes
Chapter 15: Network Layer. This chapter discusses the functions and protocols of the network layer, which is the third layer of the network architecture that deals with the routing of packets across multiple links or networks. The chapter covers topics such as network layer functions (addressing, routing, forwarding, fragmentation, reassembly), network layer standards (IP standard, ICMP standard), and network layer devices (routers, layer 3 switches).
Chapter 16: Virtual Circuit Packet Switching Network. This chapter discusses the details and features of virtual circuit packet switching network, which is a network layer technology that uses virtual circuits to establish a logical connection between two end systems before transmitting packets. The chapter covers topics such as virtual circuit concepts and types (virtual call, permanent virtual circuit, switched virtual circuit), virtual circuit operation phases (circuit establishment phase, data transfer phase, circuit termination phase), virtual circuit advantages and disadvantages, and virtual circuit standards (X.25 standard, Frame Relay standard, ATM standard).
Chapter 17: Internet Protocol (IP). This chapter discusses the details and features of Internet Protocol (IP), which is the most widely used network layer protocol that provides connectionless and best-effort delivery of packets over the internet. The chapter covers topics such as IP datagram format, IP addressing scheme (classful addressing, classless addressing), IP operation modes (unicast mode, broadcast mode, multicast mode), IP types (IPv4, IPv6), and IP devices (IP routers, IP hosts).

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